Date: Thu, 13 Mar 2003 11:49:55 +0900 From: Norikatsu Shigemura <nork@FreeBSD.org> To: freebsd-current@FreeBSD.org Subject: vfs panic on 2003-03-11(cvsuped) Message-ID: <200303130249.h2D2ntFE023970@nd250009.gab.xdsl.ne.jp>
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Panic in my environment.
# uname -a
FreeBSD *******.*****-****.*** 5.0-CURRENT FreeBSD 5.0-CURRENT #2: Wed Mar 12 18:39:05 JST 2003 nork@*******.*****-****.com:/usr/obj/usr/src/sys/MELFINA i386
There are no dmesg in vmcore.0, but I saw process name as mount_procfs
in after fsck(when panic). So I removed procfs in /etc/fstab. Then
there are no problem.
# gdb -k /usr/obj/usr/src/sys/MELFINA/kernel.debug vmcore.0
GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i386-undermydesk-freebsd"...
panic: bremfree: removing a buffer not on a queue
panic messages:
---
dmesg: kernel message buffer has different magic number
---
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:239
239 dumping++;
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:239
#1 0xc01c68ca in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:371
#2 0xc01c6bc2 in panic () at /usr/src/sys/kern/kern_shutdown.c:542
#3 0xc0209070 in bremfreel (bp=0xce611278) at /usr/src/sys/kern/vfs_bio.c:630
#4 0xc0208f82 in bremfree (bp=0x0) at /usr/src/sys/kern/vfs_bio.c:612
#5 0xc020af4c in vfs_bio_awrite (bp=0x0) at /usr/src/sys/kern/vfs_bio.c:1682
#6 0xc02e0e1a in ffs_fsync (ap=0xd68fdb60) at /usr/src/sys/ufs/ffs/ffs_vnops.c:257
#7 0xc02dfef7 in ffs_sync (mp=0xc43d6000, waitfor=2, cred=0xc150ae80, td=0xc039f640)
at vnode_if.h:612
#8 0xc021f9c6 in sync (td=0xc039f640, uap=0x0)
at /usr/src/sys/kern/vfs_syscalls.c:138
#9 0xc01c63ef in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:280
#10 0xc01c6bc2 in panic () at /usr/src/sys/kern/kern_shutdown.c:542
#11 0xc02d9152 in softdep_disk_io_initiation (bp=0xce611278)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:3466
#12 0xc02118af in cluster_wbuild (vp=0xc56b336c, size=16384, start_lbn=524, len=3)
at buf.h:422
#13 0xc020af2a in vfs_bio_awrite (bp=0xce64a690) at /usr/src/sys/kern/vfs_bio.c:1675
#14 0xc020b9a9 in flushbufqueues () at /usr/src/sys/kern/vfs_bio.c:2132
#15 0xc020b775 in buf_daemon () at /usr/src/sys/kern/vfs_bio.c:2054
#16 0xc01b1a73 in fork_exit (callout=0xc020b650 <buf_daemon>, arg=0x0, frame=0x0)
at /usr/src/sys/kern/kern_fork.c:871
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