Date: Mon, 15 Jul 2002 00:34:10 -0400 From: Munish Chopra <mchopra@engmail.uwaterloo.ca> To: freebsd-current@freebsd.org Subject: panic: bdwrite: buffer is not busy Message-ID: <20020715043410.GA706@CPE0030ab0ef2bb.cpe.net.cable.rogers.com>
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I've been having inexplicable crashes for a while and finally got around
to getting a debug kernel and checking out what's going on, so here
goes (apologies for the ^M's and all, I scripted a gdb session and that's=
=20
what I got...):
panic: bdwrite: buffer is not busy=0D
panic messages:=0D
---=0D
Fatal trap 12: page fault while in kernel mode=0D
fault virtual address =3D 0xc1ca20f4=0D
fault code =3D supervisor write, page not present=0D
instruction pointer =3D 0x8:0xc01d9b60=0D
stack pointer =3D 0x10:0xd1e20a7c=0D
frame pointer =3D 0x10:0xd1e20a94=0D
code segment =3D base 0x0, limit 0xfffff, type 0x1b=0D
=3D DPL 0, pres 1, def32 1, gran 1=0D
processor eflags =3D interrupt enabled, resume, IOPL =3D 0=0D
current process =3D 828 (smtpd)=0D
trap number =3D 12=0D
panic: page fault=0D
=0D
syncing disks... panic: bdwrite: buffer is not busy=0D
Uptime: 43m45s=0D
Dumping 256 MB=0D
ata0: resetting devices .. done=0D
16 32[CTRL-C to abort] 48[CTRL-C to abort] 64 80 96 112 128 144[CTRL-C t=
o abort] 160[CTRL-C to abort] 176 192 208 224 240=0D
---=0D
#0 0x00000000 in ?? ()=0D
(kgdb) hw=08 =08=08 =08where=0D
#0 0x00000000 in ?? ()=0D
(kgdb) quit=0D
I've caught a few of these by hand while working in the console before,
but thought they'd been resolved until now.
FreeBSD CPE0030ab0ef2bb.cpe.net.cable.rogers.com 5.0-CURRENT FreeBSD 5.0-CU=
RRENT #2: Sun Jul 14 20:26:50 EDT 2002 munish@CPE0030ab0ef2bb.cpe.net.c=
able.rogers.com:/usr/obj/usr/src/sys/ARCADIA i386
The sources are from about 1800 EST, July 14.
--=20
Munish Chopra The FreeBSD NVIDIA Driver Initiative
http://nvidia.netexplorer.org
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