Strange crash

[oscar-broman]

I'm not sure where or what's causing this.. It happens occasionally, and not right after any special events.

[15:26:28] [debug] Server crashed due to an unknown error
[15:26:28] [debug] Native backtrace:
[15:26:29] [debug] #0  74b2155f in Load () from \\psf\Home\Desktop\PAWN-Boilerplate\plugins\crashdetect.DLL
[15:26:29] [debug] #1  74b22844 in Load () from \\psf\Home\Desktop\PAWN-Boilerplate\plugins\crashdetect.DLL
[15:26:29] [debug] #2  74b2470e in Load () from \\psf\Home\Desktop\PAWN-Boilerplate\plugins\crashdetect.DLL
[15:26:29] [debug] #3  75a2003f in GetProfileStringW () from C:\Windows\syswow64\kernel32.dll
[15:26:29] [debug] #4  0049cc86 in ?? () from \\psf\Home\Desktop\PAWN-Boilerplate\samp-server.exe
[15:26:29] [debug] #5  004960c0 in ?? () from \\psf\Home\Desktop\PAWN-Boilerplate\samp-server.exe
[15:26:29] [debug] #6  759e339a in BaseThreadInitThunk () from C:\Windows\syswow64\kernel32.dll
[15:26:29] [debug] #7  774c9ef2 in RtlInitializeExceptionChain () from C:\Windows\SysWOW64\ntdll.dll
[15:26:29] [debug] #8  774c9ec5 in RtlInitializeExceptionChain () from C:\Windows\SysWOW64\ntdll.dll

[Zeex]

Yeah those first three entries look pretty odd. Can you also post the contents of crashinfo.txt please?

Edit:

Now I get somewhat similar with 4.7.5 (well, I have three Load's in a row) but it becomes OK after re-compiling the same version...

Edit2:

After a bit of disassembling I can say that GetProfileStringW should actually be UnhandlerExceptionFilter, and the following three Loads are most likely ExceptionFilter, crashdetect::Crash and crashdetect::PrintNativeBacktrace so you backtrace becomes:

[15:26:29] [debug] #0  74b2155f in crashdetect::PrintNativeBacktrace () from \\psf\Home\Desktop\PAWN-Boilerplate\plugins\crashdetect.DLL
[15:26:29] [debug] #1  74b22844 in crashdetect::Crash () from \\psf\Home\Desktop\PAWN-Boilerplate\plugins\crashdetect.DLL
[15:26:29] [debug] #2  74b2470e in ExceptionFilter () from \\psf\Home\Desktop\PAWN-Boilerplate\plugins\crashdetect.DLL
[15:26:29] [debug] #3  75a2003f in UnhandledExceptionFilter () from C:\Windows\syswow64\kernel32.dll
[15:26:29] [debug] #4  0049cc86 in ?? () from \\psf\Home\Desktop\PAWN-Boilerplate\samp-server.exe
[15:26:29] [debug] #5  004960c0 in ?? () from \\psf\Home\Desktop\PAWN-Boilerplate\samp-server.exe
[15:26:29] [debug] #6  759e339a in BaseThreadInitThunk () from C:\Windows\syswow64\kernel32.dll
[15:26:29] [debug] #7  774c9ef2 in RtlInitializeExceptionChain () from C:\Windows\SysWOW64\ntdll.dll
[15:26:29] [debug] #8  774c9ec5 in RtlInitializeExceptionChain () from C:\Windows\SysWOW64\ntdll.dll

Not very helpful though. Those 0049cc86 and 004960c0 don't tell much as well, this is basically a call to UnhandledExceptionFilter.

crashinfo.txt would be more helpful in this case.

[oscar-broman]

Alright, here it is:

---

SA-MP Server: 0.3e

Exception At Address: 0x00401700 Module: (samp-server.exe)

Registers:
EAX: 0x038A8C93 EBX: 0x0001016E ECX: 0x025C5EF0 EDX: 0x0018FDD4
ESI: 0x00000000 EDI: 0x000080B7 EBP: 0x00000000 ESP: 0x0018FDA8
EFLAGS: 0x00010216

Stack:
+0000: 0x000080B7   0x02422836   0x0040174F   0x0259D798
+0010: 0x000080B7   0x0018FDD4   0x00000064   0x02422836
+0020: 0x759E10FF   0x00000000   0x0001016F   0x00000024
+0030: 0x00000001   0x00000000   0x00000000   0x00000000
+0040: 0x00000000   0x00000000   0x3CC49B2A   0x0047D4EA
+0050: 0x0259D798   0x0242283A   0x0018FE1C   0x759E1136
+0060: 0x00762518   0x3BC564F9   0x006C1108   0x00000000
+0070: 0x000001F4   0x0048A04A   0x00000000   0x0048A057
+0080: 0x759E16C5   0x00000000   0x3BC564F9   0x004866CE
+0090: 0x00000000   0x00001DB1   0x0018FF88   0x7EFDE000
+00A0: 0x0000E000   0x00010101   0x00000020   0x00001E61
+00B0: 0x000000A0   0x00000C40   0x00762518   0x656D6167
+00C0: 0x65646F6D   0x00003531   0x004BB014   0x004BB010
+00D0: 0x7EFDE000   0x004A4710   0x0018FE70   0x0018FF78
+00E0: 0x0018FF78   0x004965F8   0x004B13D8   0xFFFFFFFF
+00F0: 0x00494881   0x00494891   0x004A4710   0x0018FF78
+0100: 0x004A43A1   0xFFFFFFFF   0x00496095   0x00000001
+0110: 0x006C1700   0x006C1748   0x00000094   0x00000006
+0120: 0x00000001   0x00001DB1   0x00000002   0x76726553
+0130: 0x20656369   0x6B636150   0x00003120   0x00000000

--------------------------

Loaded Modules:
samp-server.exe A: 0x00400000 - 0x004EE000  (\\psf\Home\Desktop\PAWN-Boilerplate\samp-server.exe)
ntdll.dll   A: 0x77490000 - 0x77610000  (C:\Windows\SysWOW64\ntdll.dll)
kernel32.dll    A: 0x759D0000 - 0x75AE0000  (C:\Windows\syswow64\kernel32.dll)
KERNELBASE.dll  A: 0x75800000 - 0x75846000  (C:\Windows\syswow64\KERNELBASE.dll)
SHELL32.dll A: 0x75D80000 - 0x769CA000  (C:\Windows\syswow64\SHELL32.dll)
msvcrt.dll  A: 0x75450000 - 0x754FC000  (C:\Windows\syswow64\msvcrt.dll)
SHLWAPI.dll A: 0x74C20000 - 0x74C77000  (C:\Windows\syswow64\SHLWAPI.dll)
GDI32.dll   A: 0x75C00000 - 0x75C90000  (C:\Windows\syswow64\GDI32.dll)
USER32.dll  A: 0x769F0000 - 0x76AF0000  (C:\Windows\syswow64\USER32.dll)
ADVAPI32.dll    A: 0x76B30000 - 0x76BD0000  (C:\Windows\syswow64\ADVAPI32.dll)
sechost.dll A: 0x75790000 - 0x757A9000  (C:\Windows\SysWOW64\sechost.dll)
RPCRT4.dll  A: 0x75C90000 - 0x75D80000  (C:\Windows\syswow64\RPCRT4.dll)
SspiCli.dll A: 0x74B70000 - 0x74BD0000  (C:\Windows\syswow64\SspiCli.dll)
CRYPTBASE.dll   A: 0x74B60000 - 0x74B6C000  (C:\Windows\syswow64\CRYPTBASE.dll)
LPK.dll A: 0x74BD0000 - 0x74BDA000  (C:\Windows\syswow64\LPK.dll)
USP10.dll   A: 0x756F0000 - 0x7578D000  (C:\Windows\syswow64\USP10.dll)
WSOCK32.dll A: 0x733F0000 - 0x733F7000  (C:\Windows\system32\WSOCK32.dll)
WS2_32.dll  A: 0x76AF0000 - 0x76B25000  (C:\Windows\syswow64\WS2_32.dll)
NSI.dll A: 0x74C80000 - 0x74C86000  (C:\Windows\syswow64\NSI.dll)
WINMM.dll   A: 0x73380000 - 0x733B2000  (C:\Windows\system32\WINMM.dll)
IMM32.DLL   A: 0x75970000 - 0x759D0000  (C:\Windows\system32\IMM32.DLL)
MSCTF.dll   A: 0x75380000 - 0x7544C000  (C:\Windows\syswow64\MSCTF.dll)
MSVCP100.dll    A: 0x746B0000 - 0x74719000  (C:\Windows\system32\MSVCP100.dll)
MSVCR100.dll    A: 0x74260000 - 0x7431E000  (C:\Windows\system32\MSVCR100.dll)
sscanf.DLL  A: 0x10000000 - 0x1000C000  (\\psf\Home\Desktop\PAWN-Boilerplate\plugins\sscanf.DLL)
whirlpool.DLL   A: 0x003F0000 - 0x003FC000  (\\psf\Home\Desktop\PAWN-Boilerplate\plugins\whirlpool.DLL)
MSVCR80.dll A: 0x73550000 - 0x735EB000  (C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.6195_none_d09154e044272b9a\MSVCR80.dll)
mswsock.dll A: 0x72FF0000 - 0x7302C000  (C:\Windows\system32\mswsock.dll)
wshtcpip.dll    A: 0x72FE0000 - 0x72FE5000  (C:\Windows\System32\wshtcpip.dll)
NLAapi.dll  A: 0x72910000 - 0x72920000  (C:\Windows\system32\NLAapi.dll)
napinsp.dll A: 0x72900000 - 0x72910000  (C:\Windows\system32\napinsp.dll)
pnrpnsp.dll A: 0x728E0000 - 0x728F2000  (C:\Windows\system32\pnrpnsp.dll)
DNSAPI.dll  A: 0x72890000 - 0x728D4000  (C:\Windows\system32\DNSAPI.dll)
winrnr.dll  A: 0x72880000 - 0x72888000  (C:\Windows\System32\winrnr.dll)
wshbth.dll  A: 0x72870000 - 0x7287D000  (C:\Windows\system32\wshbth.dll)
mdnsNSP.dll A: 0x72840000 - 0x72861000  (C:\Program Files (x86)\Bonjour\mdnsNSP.dll)
Iphlpapi.DLL    A: 0x730C0000 - 0x730DC000  (C:\Windows\system32\Iphlpapi.DLL)
WINNSI.DLL  A: 0x730B0000 - 0x730B7000  (C:\Windows\system32\WINNSI.DLL)
rasadhlp.dll    A: 0x727F0000 - 0x727F6000  (C:\Windows\system32\rasadhlp.dll)

[Zeex]

From what I found this has something to do with bad public index and/or bad nameofs value in public table record and/or unterminated name string (missing trailing \0) because it crashed while getting public's name in amx_GetPublic and the call sequence was like

main -> something1 -> something2 -> amx_FindPublic -> amx_GetPublic -> crash

Some temporaries that could be useful:

• index is 0x80B7 (the value of EDI)
• hdr->publics is 0 (ESI)

Hope that helps.

[oscar-broman]

Interesting, it could be either YSI or PAWN Boilerplate (both modify the AMX in various ways). I'll keep the server running with a few breakpoints set.

Thanks!