v0.6.0rc5 segfault on initial blockchain download when out of diskspace #999
Description
I'm playing about with rc5 trying to see how quickly I can get it to download the initial blockchain putting the datadir on a ramdisk and connecting only to a machine on the LAN which already has the blockchain.
The database log files build up continually, even though they're checkpointed every 5000 blocks. I would expect checkpointing to free up some space, but it doesn't. Eventually the ram disk holding ~/.bitcoin filled up, and bitcoin-qt crashed, leaving a message popped up in a bubble pointing at the bitcoin systray icon: "Warning: Disk space is low".
(gdb) run
Starting program: /home/chris/Bin/bitcoin -server -min -connect=192.168.0.194 -nolisten -noirc
[Thread debugging using libthread_db enabled]
[New Thread 0xb54c0b70 (LWP 2948)]
[New Thread 0xb4cbfb70 (LWP 2949)]
[New Thread 0xb12a8b70 (LWP 2952)]
[New Thread 0xb0aa7b70 (LWP 2953)]
[New Thread 0xb02a6b70 (LWP 2954)]
[New Thread 0xafaa5b70 (LWP 2955)]
[New Thread 0xaf19ab70 (LWP 2956)]
[New Thread 0xae999b70 (LWP 2957)]
[New Thread 0xae198b70 (LWP 2959)]
[New Thread 0xad997b70 (LWP 2960)]
[New Thread 0xad196b70 (LWP 2961)]
[New Thread 0xac995b70 (LWP 2962)]
[Thread 0xae999b70 (LWP 2957) exited]
[Thread 0xad997b70 (LWP 2960) exited]
[New Thread 0xae999b70 (LWP 2963)]
[Thread 0xb0aa7b70 (LWP 2953) exited]
[Thread 0xafaa5b70 (LWP 2955) exited]
"sni-qt/2947" WARN 23:57:35.064 void StatusNotifierItemFactory::connectToSnw() Invalid interface to SNW_SERVICE
[New Thread 0xafaa5b70 (LWP 2964)]
[Thread 0xb54c0b70 (LWP 2948) exited]
[New Thread 0xb54c0b70 (LWP 2973)]
[Thread 0xac995b70 (LWP 2962) exited]
[Thread 0xafaa5b70 (LWP 2964) exited]
[Thread 0xae198b70 (LWP 2959) exited]
[Thread 0xb12a8b70 (LWP 2952) exited]
[Thread 0xad196b70 (LWP 2961) exited]
[Thread 0xaf19ab70 (LWP 2956) exited]
[New Thread 0xaf19ab70 (LWP 2975)]
[Thread 0xaf19ab70 (LWP 2975) exited]
Program received signal SIGSEGV, Segmentation fault.
0xb7e6d385 in BN_usub () from /lib/i386-linux-gnu/libcrypto.so.1.0.0
(gdb) where
#0 0xb7e6d385 in BN_usub () from /lib/i386-linux-gnu/libcrypto.so.1.0.0
#1 0xb7e6d58c in BN_add () from /lib/i386-linux-gnu/libcrypto.so.1.0.0
#2 0x080ac4ec in operator+ (a=..., b=...) at src/bignum.h:470
#3 0x080c45a6 in GetWarnings (strFor=...) at src/main.cpp:2048
#4 0x082441ec in ClientModel::getStatusBarWarnings (this=0xbffff4f0) at src/qt/clientmodel.cpp:77
#5 0x080735e1 in BitcoinGUI::setNumBlocks (this=0xbffff3fc, count=24188) at src/qt/bitcoingui.cpp:461
#6 0x082b81a4 in BitcoinGUI::qt_metacall (this=0xbffff3fc, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfffec78) at build/moc_bitcoingui.cpp:110
#7 0xb6fceb7d in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8 0xb6fdda6a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#9 0x082b8fdc in ClientModel::numBlocksChanged (this=0xbffff4f0, _t1=24188) at build/moc_clientmodel.cpp:101
#10 0x08244172 in ClientModel::update (this=0xbffff4f0) at src/qt/clientmodel.cpp:54
#11 0x082b8f58 in ClientModel::qt_metacall (this=0xbffff4f0, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfffed64) at build/moc_clientmodel.cpp:82
#12 0xb6fceb7d in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#13 0xb6fdda6a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#14 0xb702c7d5 in QTimer::timeout() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#15 0xb6fe5286 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#16 0xb6fe0994 in QObject::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#17 0xb725ad84 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#18 0xb7260133 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#19 0xb6fc819e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#20 0xb6ff8c10 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#21 0xb6ff6155 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#22 0xb6a7525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb6a75990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb6a75c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb6ff6ada in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#26 0xb7312e7a in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#27 0xb6fc71dd in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#28 0xb6fc7421 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#29 0xb6fcc19d in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#30 0xb7258924 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#31 0x08068499 in main (argc=6, argv=0xbffff6e4) at src/qt/bitcoin.cpp:271
(gdb) thread apply all bt
Thread 16 (Thread 0xb54c0b70 (LWP 2973)):
#0 0xb7fdf424 in __kernel_vsyscall ()
#1 0xb6c76403 in ?? () from /lib/i386-linux-gnu/libc.so.6
#2 0xb6c0a495 in ?? () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
Thread 14 (Thread 0xae999b70 (LWP 2963)):
#0 0xb7fdf424 in __kernel_vsyscall ()
#1 0xb6e55296 in nanosleep () from /lib/i386-linux-gnu/libpthread.so.0
#2 0xb7bd6284 in boost::this_thread::sleep(boost::posix_time::ptime const&) () from /usr/lib/libboost_thread.so.1.46.1
#3 0x080cf195 in boost::thread::sleep (xt=...) at /usr/include/boost/thread/detail/thread.hpp:346
#4 0x080cf317 in Sleep (n=100000) at src/util.h:92
#5 0x08125c4b in ThreadDumpAddress2 (parg=0x0) at src/net.cpp:1215
#6 0x08125cef in ThreadDumpAddress (parg=0x0) at src/net.cpp:1226
#7 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#8 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#9 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#10 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#11 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#12 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#13 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#14 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#15 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#16 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#17 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#18 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#19 0x08125ce2 in ThreadDumpAddress (parg=0x0) at src/net.cpp:1223
#20 0xb6e4dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#21 0xb6c6846e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further
Thread 6 (Thread 0xb02a6b70 (LWP 2954)):
#0 0xb7fdf424 in __kernel_vsyscall ()
#1 0xb6e54cb8 in accept () from /lib/i386-linux-gnu/libpthread.so.0
#2 0x0829891d in boost::asio::detail::socket_ops::call_accept<unsigned int> (s=30, addr=0xb02a5e50, addrlen=0xb02a56b4)
at /usr/include/boost/asio/detail/impl/socket_ops.ipp:75
#3 0x082959d0 in boost::asio::detail::socket_ops::accept (s=30, addr=0xb02a5e50, addrlen=0xb02a56b4, ec=...)
at /usr/include/boost/asio/detail/impl/socket_ops.ipp:93
#4 0x08295a3a in boost::asio::detail::socket_ops::sync_accept (s=30, state=16 '\020', addr=0xb02a5e50, addrlen=0xb02a56b4, ec=...)
at /usr/include/boost/asio/detail/impl/socket_ops.ipp:119
#5 0x082a33e2 in boost::asio::detail::reactive_socket_service<boost::asio::ip::tcp>::accept<boost::asio::basic_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> > > (this=0x87110a4, impl=..., peer=..., peer_endpoint=0xb02a5e50, ec=...)
at /usr/include/boost/asio/detail/reactive_socket_service.hpp:326
#6 0x0829f337 in boost::asio::socket_acceptor_service<boost::asio::ip::tcp>::accept<boost::asio::stream_socket_service<boost::asio::ip::tcp> > (
this=0x8711090, impl=..., peer=..., peer_endpoint=0xb02a5e50, ec=...) at /usr/include/boost/asio/socket_acceptor_service.hpp:197
#7 0x0829b895 in boost::asio::basic_socket_acceptor<boost::asio::ip::tcp, boost::asio::socket_acceptor_service<boost::asio::ip::tcp> >::accept<boost::asio::stream_socket_service<boost::asio::ip::tcp> > (this=0xb02a579c, peer=..., peer_endpoint=...)
at /usr/include/boost/asio/basic_socket_acceptor.hpp:747
#8 0x0828db66 in ThreadRPCServer2 (parg=0x0) at src/bitcoinrpc.cpp:2438
#9 0x0828d2eb in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2347
#10 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#11 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#12 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#13 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#14 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#15 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#16 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#17 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#18 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#19 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#20 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#21 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#22 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#23 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#24 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#25 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#26 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#27 0x0828d2c0 in ThreadRPCServer (parg=0x0) at src/bitcoinrpc.cpp:2343
#28 0xb6e4dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#29 0xb6c6846e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further
Thread 3 (Thread 0xb4cbfb70 (LWP 2949)):
#0 0xb7fdf424 in __kernel_vsyscall ()
#1 0xb6c597ae in poll () from /lib/i386-linux-gnu/libc.so.6
#2 0xb6a8434b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3 0xb6a75896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4 0xb6a75f9b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5 0xb6150cea in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6 0xb6a9c5f4 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7 0xb6e4dd31 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8 0xb6c6846e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further
Thread 1 (Thread 0xb6692710 (LWP 2947)):
#0 0xb7e6d385 in BN_usub () from /lib/i386-linux-gnu/libcrypto.so.1.0.0
#1 0xb7e6d58c in BN_add () from /lib/i386-linux-gnu/libcrypto.so.1.0.0
#2 0x080ac4ec in operator+ (a=..., b=...) at src/bignum.h:470
#3 0x080c45a6 in GetWarnings (strFor=...) at src/main.cpp:2048
#4 0x082441ec in ClientModel::getStatusBarWarnings (this=0xbffff4f0) at src/qt/clientmodel.cpp:77
#5 0x080735e1 in BitcoinGUI::setNumBlocks (this=0xbffff3fc, count=24188) at src/qt/bitcoingui.cpp:461
#6 0x082b81a4 in BitcoinGUI::qt_metacall (this=0xbffff3fc, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfffec78) at build/moc_bitcoingui.cpp:110
#7 0xb6fceb7d in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8 0xb6fdda6a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#9 0x082b8fdc in ClientModel::numBlocksChanged (this=0xbffff4f0, _t1=24188) at build/moc_clientmodel.cpp:101
#10 0x08244172 in ClientModel::update (this=0xbffff4f0) at src/qt/clientmodel.cpp:54
#11 0x082b8f58 in ClientModel::qt_metacall (this=0xbffff4f0, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfffed64) at build/moc_clientmodel.cpp:82
#12 0xb6fceb7d in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#13 0xb6fdda6a in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#14 0xb702c7d5 in QTimer::timeout() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#15 0xb6fe5286 in QTimer::timerEvent(QTimerEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#16 0xb6fe0994 in QObject::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#17 0xb725ad84 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#18 0xb7260133 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#19 0xb6fc819e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#20 0xb6ff8c10 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#21 0xb6ff6155 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#22 0xb6a7525f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb6a75990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb6a75c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#25 0xb6ff6ada in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#26 0xb7312e7a in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#27 0xb6fc71dd in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#28 0xb6fc7421 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#29 0xb6fcc19d in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#30 0xb7258924 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#31 0x08068499 in main (argc=6, argv=0xbffff6e4) at src/qt/bitcoin.cpp:271
(gdb)
Edit @laanwj: clarified that this problem happens when out of diskspace