Bug 207048
| Summary: | kernel panic at sleepq_add+0x1d0 | ||
|---|---|---|---|
| Product: | Base System | Reporter: | krishna <ekraju> |
| Component: | kern | Assignee: | freebsd-bugs (Nobody) <bugs> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | CC: | amd64, jhb, np |
| Priority: | --- | ||
| Version: | CURRENT | ||
| Hardware: | amd64 | ||
| OS: | Any | ||
This was fixed in r297945 |
Stack trace: ---------- panic: sleepq_add: td 0xfffff8002adb24f0 to sleep on wchan 0xffffffff82541b08 with sleeping prohibited cpuid = 2 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2c/frame 0xfffffe0094a43120 kdb_backtrace() at kdb_backtrace+0x53/frame 0xfffffe0094a431f0 vpanic() at vpanic+0x249/frame 0xfffffe0094a432c0 kassert_panic() at kassert_panic+0xc7/frame 0xfffffe0094a43350 sleepq_add() at sleepq_add+0x1d0/frame 0xfffffe0094a433c0 _sx_slock_hard() at _sx_slock_hard+0x714/frame 0xfffffe0094a435a0 __sx_slock() at __sx_slock+0x76/frame 0xfffffe0094a43600 _sx_slock() at _sx_slock+0x14d/frame 0xfffffe0094a43660 vtprintf() at vtprintf+0x4b/frame 0xfffffe0094a43710 krping_printf() at krping_printf+0x54/frame 0xfffffe0094a43780 krping_cq_event_handler() at krping_cq_event_handler+0x390/frame 0xfffffe0094a43860 c4iw_ev_handler() at c4iw_ev_handler+0xa0/frame 0xfffffe0094a438e0 service_iq() at service_iq+0x3b6/frame 0xfffffe0094a43a30 t4_intr() at t4_intr+0x54/frame 0xfffffe0094a43a70 intr_event_execute_handlers() at intr_event_execute_handlers+0x252/frame 0xfffffe0094a43ac0 ithread_execute_handlers() at ithread_execute_handlers+0x47/frame 0xfffffe0094a43af0 ithread_loop() at ithread_loop+0x106/frame 0xfffffe0094a43b70 fork_exit() at fork_exit+0x145/frame 0xfffffe0094a43bf0 fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0094a43bf0 --- trap 0, rip = 0, rsp = 0, rbp = 0 --- KDB: enter: panic Location where the panic has hit: sleepq_add(void *wchan, struct lock_object *lock, const char *wmesg, int flags, int queue) { struct sleepqueue_chain *sc; struct sleepqueue *sq; struct thread *td; td = curthread; sc = SC_LOOKUP(wchan); mtx_assert(&sc->sc_lock, MA_OWNED); MPASS(td->td_sleepqueue != NULL); MPASS(wchan != NULL); MPASS((queue >= 0) && (queue < NR_SLEEPQS)); /* If this thread is not allowed to sleep, die a horrible death. */ ===> KASSERT(td->td_no_sleeping == 0, ("%s: td %p to sleep on wchan %p with sleeping prohibited", __func__, td, wchan)); The panic is occuring when I am running krping kernel tool in a loop(and not through manual attempts)