Date: Sat, 21 Sep 2013 09:34:59 -0700 From: Davide Italiano <davide@freebsd.org> To: Bryan Drewery <bdrewery@freebsd.org> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Panic on head (r255759) [_callout_stop_safe()-> panic: Lock lle not exclusively locked @ /usr/src/sys/kern/kern_rwlock.c:140] Message-ID: <CACYV=-FoyYhenExozTsazLCL7_2FXo=J-1D9DT4eCsPpK%2BGzLQ@mail.gmail.com> In-Reply-To: <523DC9C7.1020708@FreeBSD.org> References: <523D8AAD.5080900@FreeBSD.org> <alpine.BSF.2.00.1309211205160.4210@ai.fobar.qr> <523D8C39.4050307@FreeBSD.org> <20130921145139.23e3007a@thor.walstatt.dyndns.org> <CACYV=-FXZwzHgBkRPFay4Ktx3H-DKOmfmTpVKe4Z4VTnWmAm0g@mail.gmail.com> <523DC6D1.6050903@egr.msu.edu> <523DC9C7.1020708@FreeBSD.org>
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On Sat, Sep 21, 2013 at 9:31 AM, Bryan Drewery <bdrewery@freebsd.org> wrote: > On 9/21/2013 11:18 AM, Adam McDougall wrote: >> On 09/21/13 09:41, Davide Italiano wrote: >>> On Sat, Sep 21, 2013 at 2:51 PM, O. Hartmann >>> <ohartman@zedat.fu-berlin.de> wrote: >>>> On Sat, 21 Sep 2013 07:08:25 -0500 >>>> Bryan Drewery <bdrewery@FreeBSD.org> wrote: >>>> >>>>> On 9/21/2013 7:06 AM, Bjoern A. Zeeb wrote: >>>>>> On Sat, 21 Sep 2013, Bryan Drewery wrote: >>>>>> >>>>>>>> Unread portion of the kernel message buffer: >>>>>>>> panic: Lock lle not exclusively locked @ >>>>>>>> /usr/src/sys/kern/kern_rwlock.c:140 >>>>>>>> >>>>>>>> cpuid = 0 >>>>>>>> KDB: stack backtrace: >>>>>>>> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame >>>>>>>> 0xfffffe118aeef820 >>>>>>>> kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe118aeef8d0 >>>>>>>> vpanic() at vpanic+0x126/frame 0xfffffe118aeef910 >>>>>>>> panic() at panic+0x43/frame 0xfffffe118aeef970 >>>>>>>> __rw_assert() at __rw_assert+0xa3/frame 0xfffffe118aeef980 >>>>>>>> _callout_stop_safe() at _callout_stop_safe+0x54/frame >>>>>>>> 0xfffffe118aeef9f0 arptimer() at arptimer+0x14e/frame >>>>>>>> 0xfffffe118aeefa30 softclock_call_cc() at >>>>>>>> softclock_call_cc+0x188/frame 0xfffffe118aeefb10 softclock() at >>>>>>>> softclock+0x47/frame 0xfffffe118aeefb30 >>>>>>>> intr_event_execute_handlers() at >>>>>>>> intr_event_execute_handlers+0x93/frame 0xfffffe118aeefb70 >>>>>>>> ithread_loop() at ithread_loop+0xa6/frame 0xfffffe118aeefbb0 >>>>>>>> fork_exit() at fork_exit+0x84/frame 0xfffffe118aeefbf0 >>>>>>>> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe118aeefbf0 >>>>>>>> --- trap 0, rip = 0, rsp = 0xfffffe118aeefcb0, rbp = 0 --- >>>>>> >>>>>> +1 from me; I guess introduced somwhere between 255569 and 255758, >>>>>> as these are my edges of kernel.old and kernel. >>>>>> >>>>> r255726 was stable for me. r255759 is not. >>>>> >>>>> r255755 converted ipfilter to callout, but I am unsure if that is the >>>>> problem. >>>>> >>>> r255729 is also stable for me - I'm with r255729 again, since r255757 >>>> crashed. >>> Let me know if this fixes the problem for you: >>> http://people.freebsd.org/~davide/review/lc_calloutfix.diff >>> >>> Thanks, >>> >> Worked for me so far. I generally couldn't stay up more than 30 minutes >> before the patch and now my uptime is 90 minutes. Thanks! > > Same here. > > > -- > Regards, > Bryan Drewery > I would wait another couple of hours before the commit, but still I'm confident this fixed the problem. -- Davide "There are no solved problems; there are only problems that are more or less solved" -- Henri Poincare
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