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| -rw-r--r-- | runtime/debug.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/runtime/debug.c b/runtime/debug.c index 1450d029..7ed1442b 100644 --- a/runtime/debug.c +++ b/runtime/debug.c @@ -480,7 +480,23 @@ static inline void dbgMutexUnlockLog(pthread_mutex_t *pmut, dbgFuncDB_t *pFuncDB pthread_mutex_lock(&mutMutLog); pLog = dbgMutLogFindSpecific(pmut, MUTOP_LOCK, NULL); +#if 0 /* toggle for testing */ assert(pLog != NULL); +#else +/* the change below seems not to work - the problem seems to be a real race... I keep this code in just in case + * I need to re-use it. It should be removed once we are finished analyzing this problem. -- rgerhards, 2008-09-17 + */ +if(pLog == NULL) { + /* this may happen due to some races. We do not try to avoid + * this, as it would complicate the "real" code. This is not justified + * just to keep the debug info system up. -- rgerhards, 2008-09-17 + */ + pthread_mutex_unlock(&mutMutLog); + dbgprintf("%s:%d:%s: mutex %p UNlocked [but we did not yet know this mutex!]\n", + pFuncDB->file, unlockLn, pFuncDB->func, (void*)pmut); + return; /* if we don't know it yet, we can not clean up... */ +} +#endif /* we found the last lock entry. We now need to see from which FuncDB we need to * remove it. This is recorded inside the mutex log entry. |