Date: Fri, 14 Mar 2003 02:18:10 -0500 From: Donn Miller <dmmiller@cvzoom.net> To: Jeff Roberson <jroberson@chesapeake.net> Cc: freebsd-current@freebsd.org Subject: Re: stacktrace of recent panic..(bremfree) Message-ID: <3E718232.1080104@cvzoom.net> References: <b4pgas$qi6$1@FreeBSD.csie.NCTU.edu.tw>
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[-- Attachment #1 --]
Jeff Roberson wrote:
> On Thu, 13 Mar 2003, Julian Elischer wrote:
>
>
>>I got this today on a kernel checked out on the 10th.
>
>
> Can you please disable sync on panic and get a dump from the first panic?
> Then print out the contents of the buf in that stack for me? A couple of
> people have seen this now but I have not been able to repro it.
Add me to the list of people seeing this:
See attached crash dump. BTW, is it OK to send attachments to the
mailing list? I'm using Mozilla, and following the current mailing list
via the usenet gateway.
[-- Attachment #2 --]
#0 doadump () at ../../../kern/kern_shutdown.c:239
239 dumping++;
(kgdb) where
#0 doadump () at ../../../kern/kern_shutdown.c:239
#1 0xc01ee4c7 in boot (howto=260) at ../../../kern/kern_shutdown.c:371
#2 0xc01ee7d3 in panic () at ../../../kern/kern_shutdown.c:542
#3 0xc0232b00 in bremfreel (bp=0xc77d9d20) at ../../../kern/vfs_bio.c:630
#4 0xc0232a12 in bremfree (bp=0x0) at ../../../kern/vfs_bio.c:612
#5 0xc0234ab0 in vfs_bio_awrite (bp=0x0) at ../../../kern/vfs_bio.c:1682
#6 0xc02e669a in ffs_fsync (ap=0xd26aa898) at ../../../ufs/ffs/ffs_vnops.c:257
#7 0xc02e5777 in ffs_sync (mp=0xc25d9a00, waitfor=2, cred=0xc0eb5f00, td=0xc03a79c0)
at vnode_if.h:612
#8 0xc0249d0b in sync (td=0xc03a79c0, uap=0x0) at ../../../kern/vfs_syscalls.c:138
#9 0xc01edfef in boot (howto=256) at ../../../kern/kern_shutdown.c:280
#10 0xc01ee7d3 in panic () at ../../../kern/kern_shutdown.c:542
#11 0xc0232f82 in bwrite (bp=0xc7732228) at ../../../kern/vfs_bio.c:795
#12 0xc02338fc in bawrite (bp=0x0) at ../../../kern/vfs_bio.c:1138
#13 0xc023b98d in cluster_wbuild (vp=0xc2b93000, size=16384, start_lbn=9, len=2)
at ../../../kern/vfs_cluster.c:966
#14 0xc023af8f in cluster_write (bp=0xc77d9d20, filesize=592640, seqcount=2)
at ../../../kern/vfs_cluster.c:566
#15 0xc02e731f in ffs_write (ap=0xd26aabc4) at ../../../ufs/ffs/ffs_vnops.c:728
#16 0xc025208d in vn_write (fp=0xc26a2528, uio=0xd26aac70, active_cred=0xc2a8ac80, flags=0,
td=0xc2aa31e0) at vnode_if.h:417
#17 0xc0211a28 in dofilewrite (td=0xc2aa31e0, fp=0xc26a2528, fd=0, buf=0xa64fc00, nbyte=0,
offset=0, flags=0) at file.h:239
#18 0xc0211869 in write (td=0xc2aa31e0, uap=0xd26aad10) at ../../../kern/sys_generic.c:329
#19 0xc03467fa in syscall (frame=
{tf_fs = 47, tf_es = 47, tf_ds = -1078001617, tf_edi = 0, tf_esi = 676631584, tf_ebp = -1077939208, tf_isp = -764760716, tf_ebx = 676640036, tf_edx = 25, tf_ecx = 0, tf_eax = 4, tf_trapno = 0, tf_err = 2, tf_eip = 676976371, tf_cs = 31, tf_eflags = 518, tf_esp = -1077939268, tf_ss = 47})
at ../../../i386/i386/trap.c:1030
#20 0xc0335f2d in Xint0x80_syscall () at {standard input}:138
---Can't read userspace from dump, or kernel process---
help
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