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By remembering the path under which a file was originally referenced in the mmap call, we can use this information to find debug link files. I.e. we will now try to find the debug link file in the original binary target folder, which is where this debug link file often resides. This is useful for lazy people like me who don't want to set the application path every time they use perfparser. Change-Id: I8e33f137b186ed857b9b4da1d0618d0ae903d0cd
These sections have an odd name and cannot be found. We used to show confusing error messages. Instead, we now ignore these sections and don't try to find a file for them. Change-Id: Icf5397ad8de84406ad23373b747b4292c8510f8b
Change-Id: Iacb08b726c8c43adb2e888de0ef01cf6086f4ad0
Change-Id: Id90234fbdda5f9a3a3a7e65436b8418228f09f2c
When we loop over the unsigned integer and post-decrement it, the
very last iteration will lead to an overflow. This is harmless, as
we stop the iteration, but it still adds noise to UndefinedBehavior-
Sanitizer reports. This patch adds another check to remove the last
decrement to prevent this issue from arising.
Example warning:
3rdparty/perfparser/app/perfdata.cpp:491:22: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'quint64' (aka 'unsigned long long')
#0 0x4d2aab in operator>>(QDataStream&, PerfRecordSample&) /home/milian/projects/kdab/rnd/hotspot/3rdparty/perfparser/app/perfdata.cpp:491:22
Change-Id: I1bd85b94a303dd73302cc86e0baa16a9fd835777
The behavior is the same, but this code now does not trigger undefined behavior anymore. Change-Id: I83c70546776f89c4c07a9f088bfd2cb62bb0e9ee
This is mostly done to enable a future patch that will load the kallsyms file via it's build-id from the debug path. Change-Id: Ic5c6ecd09dfdf7f8c42b13497f77bc6c43147cf8
This allows us to parse perf.data files from other machines that we distributed via `perf archive`. Additionally, we can now parse older perf.data files from the same machine when the kernel got updated in the meantime. Change-Id: Iddec9ceb4e2e706305297c957ab85d29c247c9bb
Whenever we query for dwfl_addrmodule, we have to ensure the returned module matches the mapping we expect. To do so, a new method is introduced that wraps dwfl_addrmodule. If no module is found, or the mapping mismatches, we report the expected elf map. This does not fix any obvious issue but seems like the correct thing to do. Additionally, it allows a follow-up fix. Change-Id: I03208aaf6a64477ff7a8bdd5eb893ca34fd3038b
The call to dwfl_frame_pc potentially advances the internal
unwinder state when we query for the isactivation flag. This can
then lead to breakage when the about-to-be-returned PC lies in
a not-yet-reported module.
To fix this, we now ask first for the PC, which is cheap as it
just forwards a data member of the Dwfl_Frame state. Then we
ensure the module that contains this PC is properly reported to
dwfl. Only then do we ask for the isactivation flag by calling
dwfl_frame_pc a second time.
This fixes many broken backtraces. In perf upstream I have
submitted a similar fix. There, we can more easily compare the
libdw unwinder with libunwind. Here is the corresponding
output of the two:
Working libunwind and libdw with this patch applied:
~~~~~
heaptrack_gui 2228 135073.400474: 613969 cycles:
108c8e [unknown] (/usr/lib/libQt5Core.so.5.8.0)
1093bc [unknown] (/usr/lib/libQt5Core.so.5.8.0)
109e7b QLocale::QLocale (/usr/lib/libQt5Core.so.5.8.0)
1470ff [unknown] (/usr/lib/libQt5Core.so.5.8.0)
147f67 QSystemLocale::query (/usr/lib/libQt5Core.so.5.8.0)
109fbf QLocalePrivate::updateSystemPrivate (/usr/lib/libQt5Core.so.5.8.0)
10aa27 QLocale::QLocale (/usr/lib/libQt5Core.so.5.8.0)
1e02c3 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
2113bb [unknown] (/usr/lib/libQt5Core.so.5.8.0)
211505 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
1b5df0 QFileInfo::exists (/usr/lib/libQt5Core.so.5.8.0)
92eb2 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
93423 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
93d2a QLibraryInfo::location (/usr/lib/libQt5Core.so.5.8.0)
2170af [unknown] (/usr/lib/libQt5Core.so.5.8.0)
297c53 QCoreApplicationPrivate::init (/usr/lib/libQt5Core.so.5.8.0)
f7cde QGuiApplicationPrivate::init (/usr/lib/libQt5Gui.so.5.8.0)
1589e8 QApplicationPrivate::init (/usr/lib/libQt5Widgets.so.5.8.0)
78622 main (/home/milian/projects/compiled/other/bin/heaptrack_gui)
20439 __libc_start_main (/usr/lib/libc-2.25.so)
78299 _start (/home/milian/projects/compiled/other/bin/heaptrack_gui)
heaptrack_gui 2228 135073.401156: 569521 cycles:
131633 QString::endsWith (/usr/lib/libQt5Core.so.5.8.0)
1a0701 QDir::cleanPath (/usr/lib/libQt5Core.so.5.8.0)
21b82d [unknown] (/usr/lib/libQt5Core.so.5.8.0)
1b3727 QFileInfo::canonicalFilePath (/usr/lib/libQt5Core.so.5.8.0)
2780c7 QFactoryLoader::update (/usr/lib/libQt5Core.so.5.8.0)
279525 QFactoryLoader::QFactoryLoader (/usr/lib/libQt5Core.so.5.8.0)
e5bd0 QPlatformIntegrationFactory::create (/usr/lib/libQt5Gui.so.5.8.0)
f5a1c QGuiApplicationPrivate::createPlatformIntegration (/usr/lib/libQt5Gui.so.5.8.0)
f650c QGuiApplicationPrivate::createEventDispatcher (/usr/lib/libQt5Gui.so.5.8.0)
298524 QCoreApplicationPrivate::init (/usr/lib/libQt5Core.so.5.8.0)
f7cde QGuiApplicationPrivate::init (/usr/lib/libQt5Gui.so.5.8.0)
1589e8 QApplicationPrivate::init (/usr/lib/libQt5Widgets.so.5.8.0)
78622 main (/home/milian/projects/compiled/other/bin/heaptrack_gui)
20439 __libc_start_main (/usr/lib/libc-2.25.so)
78299 _start (/home/milian/projects/compiled/other/bin/heaptrack_gui)
~~~~~
Broken libdw, i.e. status quo without this patch. Note how the first sample
is randomly missing two frames close to the end. The second stack breaks
completely.
~~~~~
heaptrack_gui 2228 135073.400474: 613969 cycles:
108c8e [unknown] (/usr/lib/libQt5Core.so.5.8.0)
1093bc [unknown] (/usr/lib/libQt5Core.so.5.8.0)
109e7b QLocale::QLocale (/usr/lib/libQt5Core.so.5.8.0)
1470ff [unknown] (/usr/lib/libQt5Core.so.5.8.0)
147f67 QSystemLocale::query (/usr/lib/libQt5Core.so.5.8.0)
109fbf QLocalePrivate::updateSystemPrivate (/usr/lib/libQt5Core.so.5.8.0)
10aa27 QLocale::QLocale (/usr/lib/libQt5Core.so.5.8.0)
1e02c3 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
2113bb [unknown] (/usr/lib/libQt5Core.so.5.8.0)
211505 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
1b5df0 QFileInfo::exists (/usr/lib/libQt5Core.so.5.8.0)
92eb2 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
93423 [unknown] (/usr/lib/libQt5Core.so.5.8.0)
93d2a QLibraryInfo::location (/usr/lib/libQt5Core.so.5.8.0)
2170af [unknown] (/usr/lib/libQt5Core.so.5.8.0)
297c53 QCoreApplicationPrivate::init (/usr/lib/libQt5Core.so.5.8.0)
f7cde QGuiApplicationPrivate::init (/usr/lib/libQt5Gui.so.5.8.0)
20439 __libc_start_main (/usr/lib/libc-2.25.so)
78299 _start (/home/milian/projects/compiled/other/bin/heaptrack_gui)
heaptrack_gui 2228 135073.401156: 569521 cycles:
131633 QString::endsWith (/usr/lib/libQt5Core.so.5.8.0)
1a0701 QDir::cleanPath (/usr/lib/libQt5Core.so.5.8.0)
21b82d [unknown] (/usr/lib/libQt5Core.so.5.8.0)
1b3727 QFileInfo::canonicalFilePath (/usr/lib/libQt5Core.so.5.8.0)
2780c7 QFactoryLoader::update (/usr/lib/libQt5Core.so.5.8.0)
279525 QFactoryLoader::QFactoryLoader (/usr/lib/libQt5Core.so.5.8.0)
e5bd0 QPlatformIntegrationFactory::create (/usr/lib/libQt5Gui.so.5.8.0)
723dbf [unknown] ([unknown])
~~~~~
Both issues are fixed with this patch applied.
Change-Id: Ib2a9394ab2a01a5e65860540a675c277ff15dc8c
These warnings occur quite often and seem to be expected. Spamming the console with harmless warning output is not good practice, so demote the harmless issues to debug output. Change-Id: Iccb402f9e2cb0b1718325d7efa44994223a73d8f
Clang's DWARF emitter creates data that is not supported by elfutils. Binutils has a fallback, which backward-cpp implements too. This code here is based on the MIT licensed backward-cpp code. While this patch improves the situation for clang binaries, I do observe wrong attribution of some inlined nodes to the parent frame. See also: https://sourceware.org/bugzilla/show_bug.cgi?id=21247 https://sourceware.org/ml/elfutils-devel/2017-q2/msg00190.html Change-Id: Ie678685595311fae72f713a75d5b29ff959cd05d Fixes: KDAB/hotspot#51
Because the byte order was not set on the ID data stream, its values where parsed in the wrong order, i.e. byte-swapped. This leads to all kinds of errors later, when we try to lookup the attribute for a given sample ID - where we parse the value in the correct byte order. Change-Id: I06dee77bfe2901daaf1d05c7a5079ae0194adf07
This is not as good as the fallback that binutils has. But any proper solution should be put into elfutils itself. See also: http://www.mail-archive.com/[email protected]/msg00019.html Change-Id: I5a043c043d5d70a4c35243d1e3ac48aae62ea5a9
Sometimes the kallsyms file in the build-id cache is broken. Or maybe we just want to enforce reading a different kallsyms file. Previously, this was impossible as the build-id always took precedence over the kallsyms file passed on the command line. Now, when the command line parameter is set explicitly, it will be used and the build-id is ignored. This also mimicks the behavior of `perf report --kallsyms` in such a case. Change-Id: Ia5d529c915cedc6f39c662b4a69b22496441f982
This allows us to reconstruct the sample period for data files generated with the following command: perf record -c 100000 ... Without the explicit `-P` flag, the above data file has no periods for the samples. By forwarding the event attribute configuration, clients can reconstruct the data as needed. Change-Id: I12713857bc01fc6f40c6379e5b7f03e5c7c9d4b7
Fixes issue where we mapped all .plt entries to the same entry. Change-Id: Iaa5f70455ffd4749793c295b7b79101d479620c8
This is a workaround until we get this functionality into elfutils upstream. The symbols are looked up manually, which requires quite some jumping around the ELF file: - first map the address into the module space - check whether the address lies in the .plt section (by name) - if so, find the index of the .plt entry we just found - then find the dynamic section and dynamic string table - in the dynamic section, find the address of the GOT via DT_PLTGOT - find the section containing the GOT address, this is the GOT - find the GOT entry corresponding to the .plt index, offset by 2 - find the REL/RELA section containing the entry matching the address of the GOT entry - find the (dynamic) symbol for the REL/RELA entry - find the string for that symbol, demangle it, and append @plt Change-Id: I67d05f1c728b943317853bb98fa96dba48b58a3c
The perf version that I'm using on my AMD Geode "embedded" system (perf 4.9.23, built via a random version of Buildroot) apparently produces traces which require this change to treat "i586" as the "x86" architecture.
milianw
reviewed
Jul 24, 2017
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Contributor
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this sounds odd... I'm reluctant to merge this without understanding more about this, but I can see how it would help. I think we need to ask about this on the perf ML first, to figure out why it's not x86 in the first place. if the two arches are similar enough but different, I'd rather have the code deal with it both explicitly, instead of overriding the arch here. I.e. wherever we check for x86, also check for i586
Contributor
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no reply for more than a year, closing |
lievenhey
added a commit
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Oct 11, 2024
In qt6 QHash is no longer iterator safe
==138723==ERROR: AddressSanitizer: heap-use-after-free on address 0x51b000035c68 at pc 0x5d085ec696b9 bp 0x7ffe43776e00 sp 0x7ffe43776df0
READ of size 8 at 0x51b000035c68 thread T0
#0 0x5d085ec696b8 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&) /usr/include/qt6/QtCore/qswap.h:31
#1 0x5d085ec67e4f in QArrayDataPointer<char>::swap(QArrayDataPointer<char>&) /usr/include/qt6/QtCore/qarraydatapointer.h:131
#2 0x5d085ec66e97 in QByteArray::swap(QByteArray&) /usr/include/qt6/QtCore/qbytearray.h:103
#3 0x5d085ec66da8 in QByteArray::operator=(QByteArray&&) /usr/include/qt6/QtCore/qbytearray.h:101
#4 0x5d085ef0ca5c in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#5 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#6 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#7 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#8 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#9 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#10 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#13 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#14 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#15 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#16 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#17 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#18 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#19 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#20 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#21 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#22 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#23 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#24 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#25 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#26 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#27 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
#28 0x5d085ec2e24a in void QtPrivate::FunctionPointer<void (PerfHeader::*)()>::call<QtPrivate::List<>, void>(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:182
#29 0x5d085ec2bf91 in QtPrivate::QCallableObject<void (PerfHeader::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt6/QtCore/qobjectdefs_impl.h:553
#30 0x75a74298d93e in QObject::event(QEvent*) (/usr/lib/libQt6Core.so.6+0x18d93e) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#31 0x75a742945bc2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt6Core.so.6+0x145bc2) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#32 0x75a742945faa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt6Core.so.6+0x145faa) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#33 0x75a742babe4b (/usr/lib/libQt6Core.so.6+0x3abe4b) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#34 0x75a740d13558 (/usr/lib/libglib-2.0.so.0+0x5d558) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#35 0x75a740d76156 (/usr/lib/libglib-2.0.so.0+0xc0156) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#36 0x75a740d12a54 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x5ca54) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#37 0x75a742ba985c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x3a985c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#38 0x75a742950105 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x150105) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#39 0x75a74294a27c in QCoreApplication::exec() (/usr/lib/libQt6Core.so.6+0x14a27c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#40 0x5d085ec04e44 in main /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:481
#41 0x75a741a34e07 (/usr/lib/libc.so.6+0x25e07) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#42 0x75a741a34ecb in __libc_start_main (/usr/lib/libc.so.6+0x25ecb) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#43 0x5d085ebf4b64 in _start (/home/lieven/KDAB/hotspot/build-dev-asan-qt6/libexec/hotspot-perfparser+0x72db64) (BuildId: 580374afdfc7f3994c76369459f6848384c3c771)
0x51b000035c68 is located 1512 bytes inside of 1536-byte region [0x51b000035680,0x51b000035c80)
freed by thread T0 here:
#0 0x75a7430ff22a in operator delete[](void*) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:155
#1 0x5d085ef2c5af in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:409
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef08e30 in prependScopeNames(QByteArray&, Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:204
#7 0x5d085ef0965b in qualifiedDieName(Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:229
#8 0x5d085ef0c9b8 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#9 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#10 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#11 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#12 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#15 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#16 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#17 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#18 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#19 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#20 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#21 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#22 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#23 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#24 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#25 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#26 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#27 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#28 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#29 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
previously allocated by thread T0 here:
#0 0x75a7430fe682 in operator new[](unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:98
#1 0x5d085ef2c181 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:394
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef0c883 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:362
#7 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#8 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#9 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#10 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#15 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#16 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#17 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#18 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#19 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#20 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#21 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#22 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#23 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#24 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#25 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#26 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#27 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#28 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#29 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/qt6/QtCore/qswap.h:31 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&)
Shadow bytes around the buggy address:
0x51b000035980: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x51b000035c00: fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd
0x51b000035c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==138723==ABORTING
Merged
lievenhey
added a commit
that referenced
this pull request
Oct 11, 2024
In qt6 QHash is no longer iterator safe
==138723==ERROR: AddressSanitizer: heap-use-after-free on address 0x51b000035c68 at pc 0x5d085ec696b9 bp 0x7ffe43776e00 sp 0x7ffe43776df0
READ of size 8 at 0x51b000035c68 thread T0
#0 0x5d085ec696b8 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&) /usr/include/qt6/QtCore/qswap.h:31
#1 0x5d085ec67e4f in QArrayDataPointer<char>::swap(QArrayDataPointer<char>&) /usr/include/qt6/QtCore/qarraydatapointer.h:131
#2 0x5d085ec66e97 in QByteArray::swap(QByteArray&) /usr/include/qt6/QtCore/qbytearray.h:103
#3 0x5d085ec66da8 in QByteArray::operator=(QByteArray&&) /usr/include/qt6/QtCore/qbytearray.h:101
#4 0x5d085ef0ca5c in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#5 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#6 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#7 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#8 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#9 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#10 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#13 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#14 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#15 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#16 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#17 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#18 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#19 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#20 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#21 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#22 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#23 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#24 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#25 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#26 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#27 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
#28 0x5d085ec2e24a in void QtPrivate::FunctionPointer<void (PerfHeader::*)()>::call<QtPrivate::List<>, void>(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:182
#29 0x5d085ec2bf91 in QtPrivate::QCallableObject<void (PerfHeader::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt6/QtCore/qobjectdefs_impl.h:553
#30 0x75a74298d93e in QObject::event(QEvent*) (/usr/lib/libQt6Core.so.6+0x18d93e) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#31 0x75a742945bc2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt6Core.so.6+0x145bc2) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#32 0x75a742945faa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt6Core.so.6+0x145faa) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#33 0x75a742babe4b (/usr/lib/libQt6Core.so.6+0x3abe4b) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#34 0x75a740d13558 (/usr/lib/libglib-2.0.so.0+0x5d558) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#35 0x75a740d76156 (/usr/lib/libglib-2.0.so.0+0xc0156) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#36 0x75a740d12a54 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x5ca54) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#37 0x75a742ba985c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x3a985c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#38 0x75a742950105 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x150105) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#39 0x75a74294a27c in QCoreApplication::exec() (/usr/lib/libQt6Core.so.6+0x14a27c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#40 0x5d085ec04e44 in main /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:481
#41 0x75a741a34e07 (/usr/lib/libc.so.6+0x25e07) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#42 0x75a741a34ecb in __libc_start_main (/usr/lib/libc.so.6+0x25ecb) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#43 0x5d085ebf4b64 in _start (/home/lieven/KDAB/hotspot/build-dev-asan-qt6/libexec/hotspot-perfparser+0x72db64) (BuildId: 580374afdfc7f3994c76369459f6848384c3c771)
0x51b000035c68 is located 1512 bytes inside of 1536-byte region [0x51b000035680,0x51b000035c80)
freed by thread T0 here:
#0 0x75a7430ff22a in operator delete[](void*) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:155
#1 0x5d085ef2c5af in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:409
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef08e30 in prependScopeNames(QByteArray&, Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:204
#7 0x5d085ef0965b in qualifiedDieName(Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:229
#8 0x5d085ef0c9b8 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#9 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#10 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#11 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#12 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#15 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#16 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#17 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#18 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#19 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#20 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#21 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#22 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#23 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#24 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#25 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#26 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#27 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#28 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#29 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
previously allocated by thread T0 here:
#0 0x75a7430fe682 in operator new[](unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:98
#1 0x5d085ef2c181 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:394
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef0c883 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:362
#7 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#8 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#9 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#10 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#15 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#16 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#17 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#18 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#19 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#20 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#21 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#22 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#23 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#24 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#25 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#26 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#27 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#28 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#29 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/qt6/QtCore/qswap.h:31 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&)
Shadow bytes around the buggy address:
0x51b000035980: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x51b000035c00: fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd
0x51b000035c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==138723==ABORTING
lievenhey
added a commit
that referenced
this pull request
Oct 11, 2024
In qt6 QHash is no longer iterator safe
==138723==ERROR: AddressSanitizer: heap-use-after-free on address 0x51b000035c68 at pc 0x5d085ec696b9 bp 0x7ffe43776e00 sp 0x7ffe43776df0
READ of size 8 at 0x51b000035c68 thread T0
#0 0x5d085ec696b8 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&) /usr/include/qt6/QtCore/qswap.h:31
#1 0x5d085ec67e4f in QArrayDataPointer<char>::swap(QArrayDataPointer<char>&) /usr/include/qt6/QtCore/qarraydatapointer.h:131
#2 0x5d085ec66e97 in QByteArray::swap(QByteArray&) /usr/include/qt6/QtCore/qbytearray.h:103
#3 0x5d085ec66da8 in QByteArray::operator=(QByteArray&&) /usr/include/qt6/QtCore/qbytearray.h:101
#4 0x5d085ef0ca5c in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#5 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#6 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#7 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#8 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#9 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#10 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#13 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#14 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#15 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#16 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#17 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#18 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#19 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#20 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#21 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#22 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#23 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#24 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#25 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#26 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#27 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
#28 0x5d085ec2e24a in void QtPrivate::FunctionPointer<void (PerfHeader::*)()>::call<QtPrivate::List<>, void>(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:182
#29 0x5d085ec2bf91 in QtPrivate::QCallableObject<void (PerfHeader::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt6/QtCore/qobjectdefs_impl.h:553
#30 0x75a74298d93e in QObject::event(QEvent*) (/usr/lib/libQt6Core.so.6+0x18d93e) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#31 0x75a742945bc2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt6Core.so.6+0x145bc2) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#32 0x75a742945faa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt6Core.so.6+0x145faa) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#33 0x75a742babe4b (/usr/lib/libQt6Core.so.6+0x3abe4b) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#34 0x75a740d13558 (/usr/lib/libglib-2.0.so.0+0x5d558) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#35 0x75a740d76156 (/usr/lib/libglib-2.0.so.0+0xc0156) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#36 0x75a740d12a54 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x5ca54) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#37 0x75a742ba985c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x3a985c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#38 0x75a742950105 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x150105) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#39 0x75a74294a27c in QCoreApplication::exec() (/usr/lib/libQt6Core.so.6+0x14a27c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#40 0x5d085ec04e44 in main /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:481
#41 0x75a741a34e07 (/usr/lib/libc.so.6+0x25e07) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#42 0x75a741a34ecb in __libc_start_main (/usr/lib/libc.so.6+0x25ecb) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#43 0x5d085ebf4b64 in _start (/home/lieven/KDAB/hotspot/build-dev-asan-qt6/libexec/hotspot-perfparser+0x72db64) (BuildId: 580374afdfc7f3994c76369459f6848384c3c771)
0x51b000035c68 is located 1512 bytes inside of 1536-byte region [0x51b000035680,0x51b000035c80)
freed by thread T0 here:
#0 0x75a7430ff22a in operator delete[](void*) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:155
#1 0x5d085ef2c5af in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:409
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef08e30 in prependScopeNames(QByteArray&, Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:204
#7 0x5d085ef0965b in qualifiedDieName(Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:229
#8 0x5d085ef0c9b8 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#9 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#10 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#11 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#12 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#15 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#16 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#17 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#18 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#19 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#20 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#21 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#22 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#23 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#24 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#25 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#26 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#27 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#28 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#29 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
previously allocated by thread T0 here:
#0 0x75a7430fe682 in operator new[](unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:98
#1 0x5d085ef2c181 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:394
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef0c883 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:362
#7 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#8 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#9 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#10 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#15 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#16 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#17 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#18 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#19 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#20 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#21 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#22 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#23 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#24 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#25 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#26 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#27 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#28 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#29 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/qt6/QtCore/qswap.h:31 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&)
Shadow bytes around the buggy address:
0x51b000035980: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x51b000035c00: fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd
0x51b000035c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==138723==ABORTING
milianw
pushed a commit
that referenced
this pull request
Oct 11, 2024
In qt6 QHash is no longer iterator safe
==138723==ERROR: AddressSanitizer: heap-use-after-free on address 0x51b000035c68 at pc 0x5d085ec696b9 bp 0x7ffe43776e00 sp 0x7ffe43776df0
READ of size 8 at 0x51b000035c68 thread T0
#0 0x5d085ec696b8 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&) /usr/include/qt6/QtCore/qswap.h:31
#1 0x5d085ec67e4f in QArrayDataPointer<char>::swap(QArrayDataPointer<char>&) /usr/include/qt6/QtCore/qarraydatapointer.h:131
#2 0x5d085ec66e97 in QByteArray::swap(QByteArray&) /usr/include/qt6/QtCore/qbytearray.h:103
#3 0x5d085ec66da8 in QByteArray::operator=(QByteArray&&) /usr/include/qt6/QtCore/qbytearray.h:101
#4 0x5d085ef0ca5c in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#5 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#6 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#7 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#8 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#9 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#10 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#13 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#14 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#15 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#16 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#17 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#18 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#19 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#20 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#21 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#22 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#23 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#24 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#25 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#26 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#27 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
#28 0x5d085ec2e24a in void QtPrivate::FunctionPointer<void (PerfHeader::*)()>::call<QtPrivate::List<>, void>(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:182
#29 0x5d085ec2bf91 in QtPrivate::QCallableObject<void (PerfHeader::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt6/QtCore/qobjectdefs_impl.h:553
#30 0x75a74298d93e in QObject::event(QEvent*) (/usr/lib/libQt6Core.so.6+0x18d93e) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#31 0x75a742945bc2 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt6Core.so.6+0x145bc2) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#32 0x75a742945faa in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (/usr/lib/libQt6Core.so.6+0x145faa) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#33 0x75a742babe4b (/usr/lib/libQt6Core.so.6+0x3abe4b) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#34 0x75a740d13558 (/usr/lib/libglib-2.0.so.0+0x5d558) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#35 0x75a740d76156 (/usr/lib/libglib-2.0.so.0+0xc0156) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#36 0x75a740d12a54 in g_main_context_iteration (/usr/lib/libglib-2.0.so.0+0x5ca54) (BuildId: 7b781c8d1a6e2161838c5d8f3bd797797c132753)
#37 0x75a742ba985c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x3a985c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#38 0x75a742950105 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt6Core.so.6+0x150105) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#39 0x75a74294a27c in QCoreApplication::exec() (/usr/lib/libQt6Core.so.6+0x14a27c) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#40 0x5d085ec04e44 in main /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:481
#41 0x75a741a34e07 (/usr/lib/libc.so.6+0x25e07) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#42 0x75a741a34ecb in __libc_start_main (/usr/lib/libc.so.6+0x25ecb) (BuildId: 98b3d8e0b8c534c769cb871c438b4f8f3a8e4bf3)
#43 0x5d085ebf4b64 in _start (/home/lieven/KDAB/hotspot/build-dev-asan-qt6/libexec/hotspot-perfparser+0x72db64) (BuildId: 580374afdfc7f3994c76369459f6848384c3c771)
0x51b000035c68 is located 1512 bytes inside of 1536-byte region [0x51b000035680,0x51b000035c80)
freed by thread T0 here:
#0 0x75a7430ff22a in operator delete[](void*) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:155
#1 0x5d085ef2c5af in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:409
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef08e30 in prependScopeNames(QByteArray&, Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:204
#7 0x5d085ef0965b in qualifiedDieName(Dwarf_Die*, QHash<unsigned long, QByteArray>&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:229
#8 0x5d085ef0c9b8 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:364
#9 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#10 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#11 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#12 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#15 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#16 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#17 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#18 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#19 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#20 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#21 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#22 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#23 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#24 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#25 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#26 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#27 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#28 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#29 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
previously allocated by thread T0 here:
#0 0x75a7430fe682 in operator new[](unsigned long) /usr/src/debug/gcc/gcc/libsanitizer/asan/asan_new_delete.cpp:98
#1 0x5d085ef2c181 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::addStorage() /usr/include/qt6/QtCore/qhash.h:394
#2 0x5d085ef240f5 in QHashPrivate::Span<QHashPrivate::Node<unsigned long, QByteArray> >::insert(unsigned long) /usr/include/qt6/QtCore/qhash.h:283
#3 0x5d085ef1d324 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::Bucket::insert() const /usr/include/qt6/QtCore/qhash.h:511
#4 0x5d085ef18c64 in QHashPrivate::Data<QHashPrivate::Node<unsigned long, QByteArray> >::findOrInsert(unsigned long const&) /usr/include/qt6/QtCore/qhash.h:728
#5 0x5d085ef1551a in QHash<unsigned long, QByteArray>::operator[](unsigned long const&) /usr/include/qt6/QtCore/qhash.h:1064
#6 0x5d085ef0c883 in CuDieRangeMapping::dieName(Dwarf_Die*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdwarfdiecache.cpp:362
#7 0x5d085ee36e7c in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:768
#8 0x5d085ee39eea in PerfSymbolTable::lookupFrame(unsigned long, bool, bool*) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfsymboltable.cpp:774
#9 0x5d085ed06ec5 in frameCallback /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:541
#10 0x75a7437f7b08 in dwfl_thread_getframes (/usr/lib/libdw.so.1+0x5bb08) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#11 0x75a7437f2eba (/usr/lib/libdw.so.1+0x56eba) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#12 0x75a7437f3f2b in dwfl_getthreads (/usr/lib/libdw.so.1+0x57f2b) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#13 0x75a7437f7e81 in dwfl_getthread_frames (/usr/lib/libdw.so.1+0x5be81) (BuildId: 9b3f42d0dd4107f1cd947702b04157dad2a9069a)
#14 0x5d085ed07b21 in PerfUnwind::unwindStack() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:557
#15 0x5d085ed0d129 in PerfUnwind::analyze(PerfRecordSample const&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:744
#16 0x5d085ed1b65f in PerfUnwind::flushEventBuffer(unsigned int) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:1115
#17 0x5d085ed164b1 in PerfUnwind::finishedRound() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfunwind.cpp:976
#18 0x5d085ecc2fe8 in PerfData::processEvents(QDataStream&) /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:243
#19 0x5d085eccbdc2 in PerfData::doRead() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:414
#20 0x5d085eccd6f3 in PerfData::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfdata.cpp:431
#21 0x5d085ebfa511 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:383
#22 0x5d085ebfd5c6 in operator() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/main.cpp:452
#23 0x5d085ec0b9b9 in call /usr/include/qt6/QtCore/qobjectdefs_impl.h:137
#24 0x5d085ec0b121 in call<QtPrivate::List<>, void> /usr/include/qt6/QtCore/qobjectdefs_impl.h:345
#25 0x5d085ec0aa1e in impl /usr/include/qt6/QtCore/qobjectdefs_impl.h:555
#26 0x75a7429a3456 (/usr/lib/libQt6Core.so.6+0x1a3456) (BuildId: 2dc7cac262eec1f545dffaf6727f87faf910fb09)
#27 0x5d085ec33520 in PerfHeader::finished() /home/lieven/KDAB/hotspot/build-dev-asan-qt6/3rdparty/libhotspot-perfparser_autogen/6F7ISLN55V/moc_perfheader.cpp:234
#28 0x5d085ec5d91c in PerfHeader::read() /home/lieven/KDAB/hotspot/3rdparty/perfparser/app/perfheader.cpp:122
#29 0x5d085ec2f1b7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (PerfHeader::*)()>::call(void (PerfHeader::*)(), PerfHeader*, void**) /usr/include/qt6/QtCore/qobjectdefs_impl.h:145
SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/qt6/QtCore/qswap.h:31 in void qt_ptr_swap<QTypedArrayData<char> >(QTypedArrayData<char>*&, QTypedArrayData<char>*&)
Shadow bytes around the buggy address:
0x51b000035980: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035a80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x51b000035b80: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x51b000035c00: fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd
0x51b000035c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x51b000035d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x51b000035e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==138723==ABORTING
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The perf version that I'm using on my AMD Geode "embedded" system
(perf 4.9.23, built via a random version of Buildroot) apparently
produces traces which require this change to treat "i586" as the "x86"
architecture.