mirrors/mongodb
mirrors/mongodb
0
0
Fork 0
mirror of https://github.com/mongodb/mongo.git synced 2024-12-01 09:32:32 +01:00
Code Issues Releases Activity

write minidumps for unhandled exceptions on Windows

Browse Source 
This will write a file mongo.dmp in the current directory when you crash.
You can open this dump with windbg and examine all thread stacks and locals.
To read and parse the exception details, issue the .ecxr command.
This commit is contained in:
Eric Milkie 2012-04-24 16:16:37 -04:00
parent 5dda12ce95
commit 86b4fde37e
2 changed files with 46 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
SConstruct
View File

@ -625,7 +625,7 @@ elif "win32" == os.sys.platform:
else:
env.Append( LINKFLAGS=" /NODEFAULTLIB:MSVCPRT /NODEFAULTLIB:MSVCRT " )
winLibString = "ws2_32.lib kernel32.lib advapi32.lib Psapi.lib"
winLibString = "ws2_32.lib kernel32.lib advapi32.lib Psapi.lib DbgHelp.lib"
if force64:

45
src/mongo/db/db.cpp
View File

@ -48,6 +48,7 @@
#if defined(_WIN32)
# include "../util/ntservice.h"
# include <DbgHelp.h>
#else
# include <sys/file.h>
#endif
@ -1253,6 +1254,48 @@ namespace mongo {
LPTOP_LEVEL_EXCEPTION_FILTER filtLast = 0;
/* create a process dump.
To use, load up windbg. Set your symbol and source path.
Open the crash dump file. To see the crashing context, use .ecxr
*/
void doMinidump(struct _EXCEPTION_POINTERS* exceptionInfo) {
LPCWSTR dumpFilename = L"mongo.dmp";
HANDLE hFile = CreateFileW(dumpFilename,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if ( INVALID_HANDLE_VALUE == hFile ) {
DWORD lasterr = GetLastError();
log() << "failed to open minidump file " << dumpFilename << " : "
<< errnoWithDescription( lasterr ) << endl;
return;
}
MINIDUMP_EXCEPTION_INFORMATION aMiniDumpInfo;
aMiniDumpInfo.ThreadId = GetCurrentThreadId();
aMiniDumpInfo.ExceptionPointers = exceptionInfo;
aMiniDumpInfo.ClientPointers = TRUE;
log() << "writing minidump dignostic file " << dumpFilename << endl;
BOOL bstatus = MiniDumpWriteDump(GetCurrentProcess(),
GetCurrentProcessId(),
hFile,
MiniDumpNormal,
&aMiniDumpInfo,
NULL,
NULL);
if ( FALSE == bstatus ) {
DWORD lasterr = GetLastError();
log() << "failed to create minidump : "
<< errnoWithDescription( lasterr ) << endl;
}
CloseHandle(hFile);
}
LONG WINAPI exceptionFilter( struct _EXCEPTION_POINTERS *excPointers ) {
char exceptionString[128];
sprintf_s( exceptionString, sizeof( exceptionString ),
@ -1285,6 +1328,8 @@ namespace mongo {
log() << "*** access violation was a " << acTypeString << addressString << endl;
}
doMinidump(excPointers);
// In release builds, let dbexit() try to shut down cleanly
#if !defined(_DEBUG)
dbexit( EXIT_UNCAUGHT, "unhandled exception" );