Date: Thu, 11 Aug 2011 10:15:44 +0200 From: Attilio Rao <attilio@freebsd.org> To: Andriy Gapon <avg@freebsd.org> Cc: freebsd-stable@freebsd.org, Steven Hartland <killing@multiplay.co.uk> Subject: Re: debugging frequent kernel panics on 8.2-RELEASE Message-ID: <CAJ-FndAq2ASHzg_%2B9S__x=vTAgzHowMrv1DFSbXwroX27PF36A@mail.gmail.com> In-Reply-To: <4E4380C0.7070908@FreeBSD.org> References: <47F0D04ADF034695BC8B0AC166553371@multiplay.co.uk> <A71C3ACF01EC4D36871E49805C1A5321@multiplay.co.uk> <4E4380C0.7070908@FreeBSD.org>
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I'd really point the finger to faulty hw. Please run all the necessary diagnostic tools for catching it. Attilio 2011/8/11 Andriy Gapon <avg@freebsd.org>: > on 10/08/2011 18:35 Steven Hartland said the following: >> Fatal double fault >> rip =3D 0xffffffff8052f6f1 >> rsp =3D 0xffffff86ce600fb0 >> rbp =3D 0xffffff86ce601210 >> cpuid =3D 0; apic id =3D 00 >> panic: double fault >> cpuid =3D 0 >> KDB: stack backtrace: >> #0 0xffffffff803af91e at kdb_backtrace+0x5e >> #1 0xffffffff8037d817 at panic+0x187 >> #2 0xffffffff80574316 at dblfault_handler+0x96 >> #3 0xffffffff8055d06d at Xdblfault+0xad > [snip] >> #0 =C2=A0sched_switch (td=3D0xffffffff80830bc0, newtd=3D0xffffff000a73f8= c0, flags=3DVariable >> "flags" is not available.) >> =C2=A0 =C2=A0at /usr/src/sys/kern/sched_ule.c:1858 >> 1858 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0cpuid =3D PCPU_GET(cpuid); >> (kgdb) >> #0 =C2=A0sched_switch (td=3D0xffffffff80830bc0, newtd=3D0xffffff000a73f8= c0, flags=3DVariable >> "flags" is not available.) >> =C2=A0 =C2=A0at /usr/src/sys/kern/sched_ule.c:1858 >> #1 =C2=A00xffffffff80385c86 in mi_switch (flags=3D260, newtd=3D0x0) >> =C2=A0 =C2=A0at /usr/src/sys/kern/kern_synch.c:449 >> #2 =C2=A00xffffffff803b92d2 in sleepq_timedwait (wchan=3D0xffffffff80830= 760, pri=3D68) >> =C2=A0 =C2=A0at /usr/src/sys/kern/subr_sleepqueue.c:644 >> #3 =C2=A00xffffffff803861e1 in _sleep (ident=3D0xffffffff80830760, lock= =3D0x0, >> =C2=A0 =C2=A0priority=3DVariable "priority" is not available. >> ) at /usr/src/sys/kern/kern_synch.c:230 >> #4 =C2=A00xffffffff80532c29 in scheduler (dummy=3DVariable "dummy" is no= t available. >> ) at /usr/src/sys/vm/vm_glue.c:807 >> #5 =C2=A00xffffffff80335d67 in mi_startup () at /usr/src/sys/kern/init_m= ain.c:254 >> #6 =C2=A00xffffffff8016efac in btext () at /usr/src/sys/amd64/amd64/loco= re.S:81 >> #7 =C2=A00xffffffff808556e0 in sleepq_chains () >> #8 =C2=A00xffffffff8083b1e0 in cpu_top () >> #9 =C2=A00x0000000000000000 in ?? () >> #10 0xffffffff80830bc0 in proc0 () >> #11 0xffffffff80ba4b90 in ?? () >> #12 0xffffffff80ba4b38 in ?? () >> #13 0xffffff000a73f8c0 in ?? () >> #14 0xffffffff803a2cc9 in sched_switch (td=3D0x0, newtd=3D0x0, flags=3DV= ariable "flags" >> is not available. >> ) >> =C2=A0 =C2=A0at /usr/src/sys/kern/sched_ule.c:1852 >> Previous frame inner to this frame (corrupt stack?) >> (kgdb) > > Looks like this is just the first thread in the kernel. > Perhaps 'thread apply all bt' could help to find the culprit. > > -- > Andriy Gapon > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > --=20 Peace can only be achieved by understanding - A. Einstein
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