Date: Sun, 27 Jul 2008 22:07:42 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Michael Toth <freebsd.mtoth@queldor.net> Cc: Kris Kennaway <kris@freebsd.org>, freebsd-stable@freebsd.org Subject: Re: 7.0 Crashing Message-ID: <20080727190742.GF97161@deviant.kiev.zoral.com.ua> In-Reply-To: <488CC13F.1020204@FreeBSD.org> References: <488CACD9.7060002@queldor.net> <488CBB02.1020105@FreeBSD.org> <488CBBAC.7040507@queldor.net> <488CC13F.1020204@FreeBSD.org>
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--gqO6s7S91gFL8ZIQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jul 27, 2008 at 08:41:03PM +0200, Kris Kennaway wrote: > Michael Toth wrote: >=20 > >Reading symbols from /boot/kernel/acpi.ko...Reading symbols from=20 > >/boot/kernel/acpi.ko.symbols...done. > >done. > >Loaded symbols for /boot/kernel/acpi.ko > >#0 doadump () at pcpu.h:195 > >195 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td)); > >(kgdb) backtrace > >#0 doadump () at pcpu.h:195 > >#1 0xc0782597 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.= c:418 > >#2 0xc0782859 in panic (fmt=3DVariable "fmt" is not available. > >) at /usr/src/sys/kern/kern_shutdown.c:572 > >#3 0xc0a8b39c in trap_fatal (frame=3D0xe7d6ba90, eva=3D392) at=20 > >/usr/src/sys/i386/i386/trap.c:899 > >#4 0xc0a8b620 in trap_pfault (frame=3D0xe7d6ba90, usermode=3D0, eva=3D3= 92) at=20 > >/usr/src/sys/i386/i386/trap.c:812 > >#5 0xc0a8bfcc in trap (frame=3D0xe7d6ba90) at=20 > >/usr/src/sys/i386/i386/trap.c:490 > >#6 0xc0a71bdb in calltrap () at /usr/src/sys/i386/i386/exception.s:139 > >#7 0xc0775284 in _mtx_lock_sleep (m=3D0xc600d174, tid=3D3318745216, opt= s=3D0,=20 > >file=3D0x0, line=3D0) at /usr/src/sys/kern/kern_mutex.c:339 > >#8 0xc09a93d7 in vm_fault (map=3D0xc56b5570, vaddr=3D671809536,=20 > >fault_type=3D2 '\002', fault_flags=3D8) at /usr/src/sys/vm/vm_fault.c:293 > >#9 0xc0a8b50b in trap_pfault (frame=3D0xe7d6bd38, usermode=3D1,=20 > >eva=3D671813488) at /usr/src/sys/i386/i386/trap.c:789 > >#10 0xc0a8be57 in trap (frame=3D0xe7d6bd38) at=20 > >/usr/src/sys/i386/i386/trap.c:357 > >#11 0xc0a71bdb in calltrap () at /usr/src/sys/i386/i386/exception.s:139 > >#12 0x2806e607 in ?? () > >Previous frame inner to this frame (corrupt stack?) > >(kgdb) q >=20 > Not much there, check for RAM/hardware problems. Yes, it does not look sensible. Just to be sure, show the source lines around vm/vm_fault.c:293, and, from the frame 8, print the content of the fs and fs.first_object. The fault address 0x188 would suggest that some NULL pointer dereference is being performed, but assuming faulted line is VM_OBJECT_LOCK(fs.first_object); no appropriate structure member with offset 0x188 could be imagined. --gqO6s7S91gFL8ZIQ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkiMx30ACgkQC3+MBN1Mb4gf7QCfTS8buwH+Z/5r0ZROhLZXY8LF DKEAn0dXfcszhvQMhweY5DDGfZsKMPvV =Hua8 -----END PGP SIGNATURE----- --gqO6s7S91gFL8ZIQ--
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