Bug 18510
| Summary: | pthread hang and Fatal error '_waitq_insert: Already in queue' at line' | ||
|---|---|---|---|
| Product: | Base System | Reporter: | hwc <hwc> |
| Component: | misc | Assignee: | Jason Evans <jasone> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | Unspecified | ||
| Hardware: | Any | ||
| OS: | Any | ||
Responsible Changed From-To: freebsd-bugs->jasone Over to maintainer. Dear Sir:
I'v logged more information, and found ...
>*26 ERR-'_waitq_insert: Already in queue',thread id='134639616'
> thread id=134639616 capture SIGPIPE
>*26 ERR-'_pq_remove: Not in priority queue',thread id='134642688'
>*26 ERR-'_waitq_insert: Already in queue',thread id='134642688'
>*26 ERR-'_pq_remove: Not in priority queue',thread id='134642688'
>*26 ERR-'_waitq_insert: Already in queue',thread id='134642688'
134639616 is the main thread,
134642688 is the garbage collector thread....
hope this informaation will be helpful..
--
Huang Wei-Chen
Sorry... It seems my fault!!! I'v used pthread_mutex_lock when dumping message in signal handling function, and it is undefined to call these pthread functions in signal handler .... Sorry.. to waste your time.. again. -- Huang Wei-Chen State Changed From-To: open->closed The PR originator determined the problem to be an application programming error. |
I'm programing a http proxy using pthread .. Sometimes program will hang and cpu is 9x%.... I rebuild libc_r with -D_PTHREADS_INVARIANTS -g then, got Fatal error '_pq_remove: Not in priority queue' at line ? in file /usr/src/lib/libc_r/uthread/uthread_priority_queue.c (errno = ?) program terminated.... I'v modified some code, to log thread_id, capture signal and let the program continue... Then *26 ERR-'_waitq_insert: Already in queue',thread id='134639616' thread id=134639616 capture SIGPIPE *26 ERR-'_pq_remove: Not in priority queue',thread id='134642688' *26 ERR-'_waitq_insert: Already in queue',thread id='134642688' *26 ERR-'_pq_remove: Not in priority queue',thread id='134642688' *26 ERR-'_waitq_insert: Already in queue',thread id='134642688' *26 ERR-'_pq_remove: Not in priority queue',thread id='134642688' *26 ERR-'_waitq_insert: Already in queue',thread id='134642688' *26 ERR-'_pq_remove: Not in priority queue',thread id='134642688' *26 ERR-'_waitq_insert: Already in queue',thread id='134642688' infinite loop This condition happened in FreeBSD 3.4, and FreeBSD 4.0, I'v updated source code (cvsup) and make world..