Firebird 4.0.3 is constantly crashing with the same symptoms (fbclient.dll) (incl. DMP File Analysis)

Hi Everyone,

first i want to say sorry for my english. i am not a native speaker and not a (hardcore) developer at all. I hope you have more knowledge and can help.

The error is an INVALID_POINTER_READ exception that indicates a memory access at an invalid address. 
The exception occurs in the memcpy function in VCRUNTIME140.dll.

But on every crash, there are the same informations in the DMP Files which i analyzed via Windbg.

It seems, that everytime a thread_start occurs and shortly after from the fbclient.dll the functions isc_attach_database, isc_version and isc_wait_for_event are being calles. After that, the memcpy i called and the firebird process crashes.

a excerpt, full analysis below.:
---snip---
VCRUNTIME140!memcpy+0x5e7 [D:\a\_work\1\s\src\vctools\crt\vcruntime\src\string\amd64\memcpy.asm @ 721] 
fbclient!isc_wait_for_event+0x12e10
fbclient!isc_wait_for_event+0x122ec
fbclient!isc_wait_for_event+0x120de
fbclient!isc_version+0x14033
fbclient!isc_version+0x13eee
fbclient!isc_attach_database+0x301
---snap---

I think i can not answer deep questions, but i hope that there is a easy answer like: "oh i see... there is a memcpy function call in isc_wait_for_event and i can fix this"...  but right now... i am a litte bit frustrated and need urgend help or advice.

<details><summary>Details</summary>
<p>
`
Loading Dump File [D:\AVERP_DUMPS\firebird.exe_231004_132445.dmp]
User Mini Dump File with Full Memory: Only application data is available

Comment: '
*** c:\install\SysinternalsSuite\procdump64.exe  -e -ma -w firebird.exe
*** Unhandled exception: C0000005.ACCESS_VIOLATION'

************* Path validation summary **************
Response                         Time (ms)     Location
Deferred                                       srv*D:\AVERP_DUMPS\Firebird-4.0.3.2975-0-x64-pdb*D:\AVERP_DUMPS\Firebird-3.0.10.33601-0_x64_pdb*http://msdl.microsoft.com/download/symbols
Symbol search path is: srv*D:\AVERP_DUMPS\Firebird-4.0.3.2975-0-x64-pdb*D:\AVERP_DUMPS\Firebird-3.0.10.33601-0_x64_pdb*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 10 Version 20348 MP (16 procs) Free x64
Product: Server, suite: TerminalServer DataCenter SingleUserTS
Edition build lab: 20348.1.amd64fre.fe_release.210507-1500
Debug session time: Wed Oct  4 13:24:46.000 2023 (UTC + 2:00)
System Uptime: 16 days 23:56:45.899
Process Uptime: 0 days 0:07:57.000
............................................................
This dump file has an exception of interest stored in it.
The stored exception information can be accessed via .ecxr.
(cf0.1f90): Access violation - code c0000005 (first/second chance not available)
For analysis of this file, run !analyze -v
*** WARNING: Unable to verify checksum for fbclient.dll
VCRUNTIME140!memcpy+0x5e7:
00007ff9`70cd18f7 0f104411f0      movups  xmm0,xmmword ptr [rcx+rdx-10h] ds:00000006`14bffff0=????????????????????????????????
0:022> !analyze -v
*******************************************************************************
*                                                                             *
*                        Exception Analysis                                   *
*                                                                             *
*******************************************************************************


KEY_VALUES_STRING: 1

    Key  : AV.Fault
    Value: Read

    Key  : Analysis.CPU.mSec
    Value: 1124

    Key  : Analysis.Elapsed.mSec
    Value: 1238

    Key  : Analysis.IO.Other.Mb
    Value: 0

    Key  : Analysis.IO.Read.Mb
    Value: 36

    Key  : Analysis.IO.Write.Mb
    Value: 36

    Key  : Analysis.Init.CPU.mSec
    Value: 718

    Key  : Analysis.Init.Elapsed.mSec
    Value: 5913

    Key  : Analysis.Memory.CommitPeak.Mb
    Value: 101

    Key  : Failure.Bucket
    Value: INVALID_POINTER_READ_c0000005_VCRUNTIME140.dll!memcpy

    Key  : Failure.Hash
    Value: {6cc7063a-c9e9-809b-b45d-40b8348a9d9b}

    Key  : Timeline.OS.Boot.DeltaSec
    Value: 1468605

    Key  : Timeline.Process.Start.DeltaSec
    Value: 477

    Key  : WER.OS.Branch
    Value: fe_release

    Key  : WER.OS.Version
    Value: 10.0.20348.1

    Key  : WER.Process.Version
    Value: 4.0.3.2975


FILE_IN_CAB:  firebird.exe_231004_132445.dmp

COMMENT:  
*** c:\install\SysinternalsSuite\procdump64.exe  -e -ma -w firebird.exe
*** Unhandled exception: C0000005.ACCESS_VIOLATION

NTGLOBALFLAG:  0

APPLICATION_VERIFIER_FLAGS:  0

CONTEXT:  (.ecxr)
rax=0000000714c0ab01 rbx=000000060736dac0 rcx=000000061aa30000
rdx=fffffffffa1d0000 rsi=0000000614c10030 rdi=00000000ffffaae1
rip=00007ff970cd18f7 rsp=000000060736d668 rbp=00000000ffffaae1
 r8=00000000ffffaad0  r9=00000000000bc3ff r10=000000060ede0030
r11=0000000614c10030 r12=000000060736dd90 r13=000000060ede0030
r14=000000060ede0030 r15=000000060ede0030
iopl=0         nv up ei pl nz ac po nc
cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010214
VCRUNTIME140!memcpy+0x5e7:
00007ff9`70cd18f7 0f104411f0      movups  xmm0,xmmword ptr [rcx+rdx-10h] ds:00000006`14bffff0=????????????????????????????????
Resetting default scope

EXCEPTION_RECORD:  (.exr -1)
ExceptionAddress: 00007ff970cd18f7 (VCRUNTIME140!memcpy+0x00000000000005e7)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000000614bffff0
Attempt to read from address 0000000614bffff0

PROCESS_NAME:  firebird.exe

READ_ADDRESS:  0000000614bffff0 

ERROR_CODE: (NTSTATUS) 0xc0000005 - Die Anweisung in 0x%p verwies auf Arbeitsspeicher bei 0x%p. Der Vorgang %s konnte im Arbeitsspeicher nicht durchgef hrt werden.

EXCEPTION_CODE_STR:  c0000005

EXCEPTION_PARAMETER1:  0000000000000000

EXCEPTION_PARAMETER2:  0000000614bffff0

STACK_TEXT:  
00000006`0736d668 00007ff9`71a975c0     : 00007ff9`71b72e60 00000000`ffffaaf0 00000006`0736d65c 00000020`00000007 : VCRUNTIME140!memcpy+0x5e7
00000006`0736d670 00007ff9`71a96a9c     : 00000006`0736da80 00000006`0ede0030 00007ff9`71b72e58 00000000`00000000 : fbclient!isc_wait_for_event+0x12e10
00000006`0736d6a0 00007ff9`71a9688e     : 00000000`00100000 00007ff9`71b72e58 00000000`00000000 00000006`0736d758 : fbclient!isc_wait_for_event+0x122ec
00000006`0736d6d0 00007ff9`71a63a23     : 00000006`0736da80 00000006`0b4b7b20 00000006`0736e560 00000006`0736df3c : fbclient!isc_wait_for_event+0x120de
00000006`0736d720 00007ff9`71a638de     : 00000006`0736f700 00007ff9`71a76de9 00000000`00000030 00007ff9`71be11a0 : fbclient!isc_version+0x14033
00000006`0736dd10 00007ff9`71a7b331     : 00000006`0b4b7b20 00000006`0736e560 00000006`08d1d1fc 00000006`0ebf93f0 : fbclient!isc_version+0x13eee
00000006`0736dd50 00007ff9`548356e9     : 00000006`0736f700 00007ff9`548374e7 00000000`00000000 00000000`00000000 : fbclient!isc_attach_database+0x301
00000006`0736dfc0 00007ff9`54837bc8     : 00000004`069d93c0 00000003`a86987f8 00000003`a8698838 00000004`069d93c0 : engine13+0x1e56e9
00000006`0736e0d0 00007ff9`5482a317     : 00000006`0736e530 00000006`0736e560 00000006`0736e530 00000006`08d1d1b0 : engine13+0x1e7bc8
00000006`0736e410 00007ff9`5482c0f5     : 00000006`08d1d1b0 00000006`0736f700 00000000`00000000 00000000`eb695639 : engine13+0x1da317
00000006`0736e460 00007ff9`547b7cf9     : 00000000`00000000 00000000`00000000 00000000`00000000 00007ff9`00000000 : engine13+0x1dc0f5
00000006`0736e670 00007ff9`54822b6f     : 00000004`13462480 00000002`4efd45b0 00000006`0ad3c440 00000004`13462810 : engine13+0x167cf9
00000006`0736e850 00007ff9`54824484     : 00000006`0736f700 00000006`0ad3c440 00000004`13462810 00000000`799f3970 : engine13+0x1d2b6f
00000006`0736e930 00007ff9`548241bb     : 00000000`00000040 00000004`099454c0 00000000`000004a8 00007ff9`549bcaf9 : engine13+0x1d4484
00000006`0736e990 00007ff9`54822e6b     : 00000006`0736f700 00000000`00000000 00000004`0998f940 00007ff9`5495de4c : engine13+0x1d41bb
00000006`0736e9f0 00007ff9`548e67de     : 00000006`0736f700 00000006`0ad3c440 00000002`55ccd730 00000000`000004b0 : engine13+0x1d2e6b
00000006`0736eaa0 00007ff9`548e5b41     : 00007ff9`5481c690 00000002`55ccd730 00000006`0736f700 00000006`0884315c : engine13!firebird_plugin+0x57ebe
00000006`0736ebb0 00007ff9`548df639     : 00000006`0736f700 00000006`0736f700 00000006`0ad3a4c0 00000000`799f3970 : engine13!firebird_plugin+0x57221
00000006`0736ebf0 00007ff9`548df704     : 00000000`00000000 00002875`68478317 00000006`0736f700 00000000`00000000 : engine13!firebird_plugin+0x50d19
00000006`0736ec40 00007ff9`548e97f8     : 00000006`0736f700 00000002`4efdfa70 00000006`0ad3a4c0 00007ff9`548dfc19 : engine13!firebird_plugin+0x50de4
00000006`0736ec70 00007ff9`548de86d     : 00000006`08843180 00007ff9`548deba1 ffffffff`fffffffe 00007ff9`547227c6 : engine13!firebird_plugin+0x5aed8
00000006`0736eca0 00007ff9`547b7fe2     : 00000006`08843198 00000006`08843198 00000004`0998f940 00000002`55ccd930 : engine13!firebird_plugin+0x4ff4d
00000006`0736ece0 00007ff9`54822b6f     : 00000002`55ccd930 00000006`0ec22a48 00000006`0ad3a4c0 00000000`799f3970 : engine13+0x167fe2
00000006`0736ed20 00007ff9`54824484     : 00000006`0736f700 00000006`0ad3a4c0 00000002`55ccd930 00000006`0a7c6190 : engine13+0x1d2b6f
00000006`0736ee00 00007ff9`548241bb     : 00000000`00000040 00000004`099454c0 00000000`0000000a 00007ff9`549bcaf9 : engine13+0x1d4484
00000006`0736ee60 00007ff9`54822e6b     : 00000006`0736f700 00000000`00000000 00000004`0998f940 00007ff9`5495de4c : engine13+0x1d41bb
00000006`0736eec0 00007ff9`548e67de     : 00000006`0736f700 00000006`0ad3a4c0 00000000`00000000 00000006`0000000a : engine13+0x1d2e6b
00000006`0736ef70 00007ff9`548e97f8     : 00000006`0ed7b3e8 00000006`0ed7b408 00000006`0736f700 00000006`0736f700 : engine13!firebird_plugin+0x57ebe
00000006`0736f080 00007ff9`5475188a     : 00000006`0ed0c1c0 00000000`00000000 00000006`0ed0c1c0 00000006`0736f700 : engine13!firebird_plugin+0x5aed8
00000006`0736f0b0 00007ff9`54718d56     : 00000006`0ec43c50 00000006`0736f700 00000006`0ed0c1c0 00000004`00000008 : engine13+0x10188a
00000006`0736f150 00007ff9`54820f8c     : 00000006`0ed0c1c0 00000006`0ec057a0 00000006`0ec055f0 00000006`0736f700 : engine13+0xc8d56
00000006`0736f180 00007ff9`547b7476     : 00000006`0ec21e68 00000006`0eb65f90 00000006`0ed0c1c0 00000006`0736f700 : engine13+0x1d0f8c
00000006`0736f1c0 00007ff9`54822b6f     : 00000006`0eb65f90 00000006`0736f529 00000006`0ed0c1c0 00000006`0a7c6190 : engine13+0x167476
00000006`0736f1f0 00007ff9`54824484     : 00000006`0736f700 00000006`0ed0c1c0 00000006`0eb65f90 00000004`8acafa90 : engine13+0x1d2b6f
00000006`0736f2d0 00007ff9`548241bb     : 00000190`00000190 00000004`6397f240 ffffffff`fffffffe 00007ff9`54ae7b68 : engine13+0x1d4484
00000006`0736f330 00007ff9`54822e6b     : 00000006`0736f700 00000000`0000c0a1 00000004`0998f940 00000000`0120e160 : engine13+0x1d41bb
00000006`0736f390 00007ff9`5486d444     : 00000006`0736f700 00000006`0ed0c1c0 ffffffff`fffffffe 00000000`00007c1c : engine13+0x1d2e6b
00000006`0736f440 00007ff9`5472d701     : 00000000`00000000 00000004`8acafa90 00007ff9`54af1280 00000004`8acafa90 : engine13+0x21d444
00000006`0736f480 00007ff9`5473e6f8     : 00000002`e51ca680 00000006`0736f898 00000002`ed6b0040 00000006`0eb63df0 : engine13+0xdd701
00000006`0736f590 00007ff9`54879305     : 00000006`0736f610 00000005`8f371140 00000006`0736f828 00000006`0736fa90 : engine13+0xee6f8
00000006`0736f5c0 00007ff9`5487213f     : 00000005`8f371148 00000006`0736fa90 00000002`ed6b0040 00007ff9`71a063eb : engine13+0x229305
00000006`0736f870 00007ff9`71a6ded2     : 00000006`0736f958 00000000`60f1b718 00000006`0736f958 00000006`0736f958 : engine13+0x22213f
00000006`0736f8d0 00007ff9`71a669ff     : 00000005`49bc0e98 00000006`0736f958 00000002`ed6b0040 00000001`40049edc : fbclient!isc_version+0x1e4e2
00000006`0736f930 00000001`4001ccc6     : 00000001`3bc212a0 00000006`0736fa90 00000001`af4547d8 00000000`6ab66940 : fbclient!isc_version+0x1700f
00000006`0736f990 00000001`4002116e     : 00000006`0b4b7b20 00000000`6ab66940 00000001`3cb2d7c0 00000000`6ab66940 : firebird+0x1ccc6
00000006`0736fb30 00000001`4001f80b     : 00000000`01630440 00000001`af4547c0 00000001`af4547c0 00000000`016304c0 : firebird+0x2116e
00000006`0736fdd0 00000001`4003ed25     : 00000000`0000003a 00000000`00000000 00000000`016304c0 00000000`00000000 : firebird+0x1f80b
00000006`0736fec0 00007ff9`78a36b4c     : 00000003`16e7da40 00000000`0018b080 00000000`00000000 00000000`00000000 : firebird+0x3ed25
00000006`0736ff00 00007ff9`79bc4de0     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>+0x4c
00000006`0736ff30 00007ff9`7b2fec0b     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : kernel32!BaseThreadInitThunk+0x10
00000006`0736ff60 00000000`00000000     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x2b


FAULTING_SOURCE_LINE:  D:\a\_work\1\s\src\vctools\crt\vcruntime\src\string\amd64\memcpy.asm

FAULTING_SOURCE_FILE:  D:\a\_work\1\s\src\vctools\crt\vcruntime\src\string\amd64\memcpy.asm

FAULTING_SOURCE_LINE_NUMBER:  721

FAULTING_SOURCE_CODE:  
No source found for 'D:\a\_work\1\s\src\vctools\crt\vcruntime\src\string\amd64\memcpy.asm'


SYMBOL_NAME:  VCRUNTIME140!memcpy+5e7

MODULE_NAME: VCRUNTIME140

IMAGE_NAME:  VCRUNTIME140.dll

STACK_COMMAND:  ~22s; .ecxr ; kb

FAILURE_BUCKET_ID:  INVALID_POINTER_READ_c0000005_VCRUNTIME140.dll!memcpy

OS_VERSION:  10.0.20348.1

BUILDLAB_STR:  fe_release

OSPLATFORM_TYPE:  x64

OSNAME:  Windows 10

IMAGE_VERSION:  14.36.32532.0

FAILURE_ID_HASH:  {6cc7063a-c9e9-809b-b45d-40b8348a9d9b}

Followup:     MachineOwner
---------


0:022> kb
 # RetAddr               : Args to Child                                                           : Call Site
00 00007ff9`71a975c0     : 00007ff9`71b72e60 00000000`ffffaaf0 00000006`0736d65c 00000020`00000007 : VCRUNTIME140!memcpy+0x5e7 [D:\a\_work\1\s\src\vctools\crt\vcruntime\src\string\amd64\memcpy.asm @ 721] 
01 00007ff9`71a96a9c     : 00000006`0736da80 00000006`0ede0030 00007ff9`71b72e58 00000000`00000000 : fbclient!isc_wait_for_event+0x12e10
02 00007ff9`71a9688e     : 00000000`00100000 00007ff9`71b72e58 00000000`00000000 00000006`0736d758 : fbclient!isc_wait_for_event+0x122ec
03 00007ff9`71a63a23     : 00000006`0736da80 00000006`0b4b7b20 00000006`0736e560 00000006`0736df3c : fbclient!isc_wait_for_event+0x120de
04 00007ff9`71a638de     : 00000006`0736f700 00007ff9`71a76de9 00000000`00000030 00007ff9`71be11a0 : fbclient!isc_version+0x14033
05 00007ff9`71a7b331     : 00000006`0b4b7b20 00000006`0736e560 00000006`08d1d1fc 00000006`0ebf93f0 : fbclient!isc_version+0x13eee
06 00007ff9`548356e9     : 00000006`0736f700 00007ff9`548374e7 00000000`00000000 00000000`00000000 : fbclient!isc_attach_database+0x301
07 00007ff9`54837bc8     : 00000004`069d93c0 00000003`a86987f8 00000003`a8698838 00000004`069d93c0 : engine13+0x1e56e9
08 00007ff9`5482a317     : 00000006`0736e530 00000006`0736e560 00000006`0736e530 00000006`08d1d1b0 : engine13+0x1e7bc8
09 00007ff9`5482c0f5     : 00000006`08d1d1b0 00000006`0736f700 00000000`00000000 00000000`eb695639 : engine13+0x1da317
0a 00007ff9`547b7cf9     : 00000000`00000000 00000000`00000000 00000000`00000000 00007ff9`00000000 : engine13+0x1dc0f5
0b 00007ff9`54822b6f     : 00000004`13462480 00000002`4efd45b0 00000006`0ad3c440 00000004`13462810 : engine13+0x167cf9
0c 00007ff9`54824484     : 00000006`0736f700 00000006`0ad3c440 00000004`13462810 00000000`799f3970 : engine13+0x1d2b6f
0d 00007ff9`548241bb     : 00000000`00000040 00000004`099454c0 00000000`000004a8 00007ff9`549bcaf9 : engine13+0x1d4484
0e 00007ff9`54822e6b     : 00000006`0736f700 00000000`00000000 00000004`0998f940 00007ff9`5495de4c : engine13+0x1d41bb
0f 00007ff9`548e67de     : 00000006`0736f700 00000006`0ad3c440 00000002`55ccd730 00000000`000004b0 : engine13+0x1d2e6b
10 00007ff9`548e5b41     : 00007ff9`5481c690 00000002`55ccd730 00000006`0736f700 00000006`0884315c : engine13!firebird_plugin+0x57ebe
11 00007ff9`548df639     : 00000006`0736f700 00000006`0736f700 00000006`0ad3a4c0 00000000`799f3970 : engine13!firebird_plugin+0x57221
12 00007ff9`548df704     : 00000000`00000000 00002875`68478317 00000006`0736f700 00000000`00000000 : engine13!firebird_plugin+0x50d19
13 00007ff9`548e97f8     : 00000006`0736f700 00000002`4efdfa70 00000006`0ad3a4c0 00007ff9`548dfc19 : engine13!firebird_plugin+0x50de4
14 00007ff9`548de86d     : 00000006`08843180 00007ff9`548deba1 ffffffff`fffffffe 00007ff9`547227c6 : engine13!firebird_plugin+0x5aed8
15 00007ff9`547b7fe2     : 00000006`08843198 00000006`08843198 00000004`0998f940 00000002`55ccd930 : engine13!firebird_plugin+0x4ff4d
16 00007ff9`54822b6f     : 00000002`55ccd930 00000006`0ec22a48 00000006`0ad3a4c0 00000000`799f3970 : engine13+0x167fe2
17 00007ff9`54824484     : 00000006`0736f700 00000006`0ad3a4c0 00000002`55ccd930 00000006`0a7c6190 : engine13+0x1d2b6f
18 00007ff9`548241bb     : 00000000`00000040 00000004`099454c0 00000000`0000000a 00007ff9`549bcaf9 : engine13+0x1d4484
19 00007ff9`54822e6b     : 00000006`0736f700 00000000`00000000 00000004`0998f940 00007ff9`5495de4c : engine13+0x1d41bb
1a 00007ff9`548e67de     : 00000006`0736f700 00000006`0ad3a4c0 00000000`00000000 00000006`0000000a : engine13+0x1d2e6b
1b 00007ff9`548e97f8     : 00000006`0ed7b3e8 00000006`0ed7b408 00000006`0736f700 00000006`0736f700 : engine13!firebird_plugin+0x57ebe
1c 00007ff9`5475188a     : 00000006`0ed0c1c0 00000000`00000000 00000006`0ed0c1c0 00000006`0736f700 : engine13!firebird_plugin+0x5aed8
1d 00007ff9`54718d56     : 00000006`0ec43c50 00000006`0736f700 00000006`0ed0c1c0 00000004`00000008 : engine13+0x10188a
1e 00007ff9`54820f8c     : 00000006`0ed0c1c0 00000006`0ec057a0 00000006`0ec055f0 00000006`0736f700 : engine13+0xc8d56
1f 00007ff9`547b7476     : 00000006`0ec21e68 00000006`0eb65f90 00000006`0ed0c1c0 00000006`0736f700 : engine13+0x1d0f8c
20 00007ff9`54822b6f     : 00000006`0eb65f90 00000006`0736f529 00000006`0ed0c1c0 00000006`0a7c6190 : engine13+0x167476
21 00007ff9`54824484     : 00000006`0736f700 00000006`0ed0c1c0 00000006`0eb65f90 00000004`8acafa90 : engine13+0x1d2b6f
22 00007ff9`548241bb     : 00000190`00000190 00000004`6397f240 ffffffff`fffffffe 00007ff9`54ae7b68 : engine13+0x1d4484
23 00007ff9`54822e6b     : 00000006`0736f700 00000000`0000c0a1 00000004`0998f940 00000000`0120e160 : engine13+0x1d41bb
24 00007ff9`5486d444     : 00000006`0736f700 00000006`0ed0c1c0 ffffffff`fffffffe 00000000`00007c1c : engine13+0x1d2e6b
25 00007ff9`5472d701     : 00000000`00000000 00000004`8acafa90 00007ff9`54af1280 00000004`8acafa90 : engine13+0x21d444
26 00007ff9`5473e6f8     : 00000002`e51ca680 00000006`0736f898 00000002`ed6b0040 00000006`0eb63df0 : engine13+0xdd701
27 00007ff9`54879305     : 00000006`0736f610 00000005`8f371140 00000006`0736f828 00000006`0736fa90 : engine13+0xee6f8
28 00007ff9`5487213f     : 00000005`8f371148 00000006`0736fa90 00000002`ed6b0040 00007ff9`71a063eb : engine13+0x229305
29 00007ff9`71a6ded2     : 00000006`0736f958 00000000`60f1b718 00000006`0736f958 00000006`0736f958 : engine13+0x22213f
2a 00007ff9`71a669ff     : 00000005`49bc0e98 00000006`0736f958 00000002`ed6b0040 00000001`40049edc : fbclient!isc_version+0x1e4e2
2b 00000001`4001ccc6     : 00000001`3bc212a0 00000006`0736fa90 00000001`af4547d8 00000000`6ab66940 : fbclient!isc_version+0x1700f
2c 00000001`4002116e     : 00000006`0b4b7b20 00000000`6ab66940 00000001`3cb2d7c0 00000000`6ab66940 : firebird+0x1ccc6
2d 00000001`4001f80b     : 00000000`01630440 00000001`af4547c0 00000001`af4547c0 00000000`016304c0 : firebird+0x2116e
2e 00000001`4003ed25     : 00000000`0000003a 00000000`00000000 00000000`016304c0 00000000`00000000 : firebird+0x1f80b
2f 00007ff9`78a36b4c     : 00000003`16e7da40 00000000`0018b080 00000000`00000000 00000000`00000000 : firebird+0x3ed25
30 00007ff9`79bc4de0     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ucrtbase!thread_start<unsigned int (__cdecl*)(void *),1>+0x4c
31 00007ff9`7b2fec0b     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : kernel32!BaseThreadInitThunk+0x10
32 00000000`00000000     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x2b
0:022> lmvm VCRUNTIME140
Browse full module list
start             end                 module name
00007ff9`70cd0000 00007ff9`70ceb000   VCRUNTIME140   (private pdb symbols)  d:\averp_dumps\firebird-4.0.3.2975-0-x64-pdb\vcruntime140.amd64.pdb\38DD49151CC8F884F457AEB14C69A0F01\vcruntime140.amd64.pdb
    Loaded symbol image file: VCRUNTIME140.dll
    Image path: C:\Windows\System32\VCRUNTIME140.dll
    Image name: VCRUNTIME140.dll
    Browse all global symbols  functions  data
    Image was built with /Brepro flag.
    Timestamp:        C94BF788 (This is a reproducible build file hash, not a timestamp)
    CheckSum:         0001BF13
    ImageSize:        0001B000
    File version:     14.36.32532.0
    Product version:  14.36.32532.0
    File flags:       0 (Mask 3F)
    File OS:          4 Unknown Win32
    File type:        2.0 Dll
    File date:        00000000.00000000
    Translations:     0409.04b0
    Information from resource tables:
        CompanyName:      Microsoft Corporation
        ProductName:      Microsoft® Visual Studio®
        InternalName:     vcruntime140.dll
        OriginalFilename: vcruntime140.dll
        ProductVersion:   14.36.32532.0
        FileVersion:      14.36.32532.0
        FileDescription:  Microsoft® C Runtime Library
        LegalCopyright:   © Microsoft Corporation. All rights reserved.
`
</p>
</details> 


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Firebird 4.0.3 is constantly crashing with the same symptoms (fbclient.dll) (incl. DMP File Analysis) #7779

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Uh oh!

Firebird 4.0.3 is constantly crashing with the same symptoms (fbclient.dll) (incl. DMP File Analysis) #7779

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