diff options
Diffstat (limited to 'runtime/debug.c')
| -rw-r--r-- | runtime/debug.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/runtime/debug.c b/runtime/debug.c index 876f61d0..68474989 100644 --- a/runtime/debug.c +++ b/runtime/debug.c @@ -1430,6 +1430,7 @@ dbgSetDebugFile(uchar *fn) rsRetVal dbgClassInit(void) { + pthread_mutexattr_t mutAttr; rsRetVal iRet; /* do not use DEFiRet, as this makes calls into the debug system! */ struct sigaction sigAct; @@ -1437,14 +1438,16 @@ rsRetVal dbgClassInit(void) (void) pthread_key_create(&keyCallStack, dbgCallStackDestruct); /* MUST be the first action done! */ - /* we initialize all Mutexes with code, as some platforms seem to have - * bugs in the static initializer macros. So better be on the safe side... - * rgerhards, 2008-03-06 + /* the mutexes must be recursive, because it may be called from within + * signal handlers, which can lead to a hang if the signal interrupted dbgprintf + * (yes, we have really seen that situation in practice!). -- rgerhards, 2013-05-17 */ - pthread_mutex_init(&mutFuncDBList, NULL); - pthread_mutex_init(&mutMutLog, NULL); - pthread_mutex_init(&mutCallStack, NULL); - pthread_mutex_init(&mutdbgprint, NULL); + pthread_mutexattr_init(&mutAttr); + pthread_mutexattr_settype(&mutAttr, PTHREAD_MUTEX_RECURSIVE); + pthread_mutex_init(&mutFuncDBList, &mutAttr); + pthread_mutex_init(&mutMutLog, &mutAttr); + pthread_mutex_init(&mutCallStack, &mutAttr); + pthread_mutex_init(&mutdbgprint, &mutAttr); /* while we try not to use any of the real rsyslog code (to avoid infinite loops), we * need to have the ability to query object names. Thus, we need to obtain a pointer to |