Date: Fri, 20 Feb 1998 10:06:35 +1030 (CST) From: grog@lemis.com To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/5795: Panic: "bremfree: removing a buffer when not on a queue" with tunefs on a block device Message-ID: <199802192336.KAA29757@freebie.lemis.com>
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>Number: 5795
>Category: kern
>Synopsis: Panic: "bremfree: removing a buffer when not on a queue" with tunefs on a block device
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Feb 19 15:40:08 PST 1998
>Last-Modified:
>Originator: Greg Lehey
>Organization:
LEMIS, PO Box 460, Echunga SA 5153, Australia
>Release:
>Environment:
Any
>Description:
If tunefs is run against a block disk device, the system panics with the message
bremfree: removing a buffer when not on a queue
Here's a trace:
#0 Debugger (msg=0xf011bbfc "panic") at ../../i386/i386/db_interface.c:317
#1 0xf011bc5e in panic (fmt=0xf0133c06 "bremfree: removing a buffer when not on a queue")
at ../../kern/kern_shutdown.c:423
#2 0xf0133c9a in bremfree (bp=0xf24ed990) at ../../kern/vfs_bio.c:258
#3 0xf01349fa in vfs_bio_awrite (bp=0xf24ed990) at ../../kern/vfs_bio.c:926
#4 0xf01465d4 in spec_write (ap=0xf3e87ef8) at ../../miscfs/specfs/spec_vnops.c:401
#5 0xf01c2675 in ufsspec_write (ap=0xf3e87ef8) at ../../ufs/ufs/ufs_vnops.c:1784
#6 0xf01c2b79 in ufs_vnoperatespec (ap=0xf3e87ef8) at ../../ufs/ufs/ufs_vnops.c:2242
#7 0xf01404b7 in vn_write (fp=0xf053ea00, uio=0xf3e87f40, cred=0xf0544e00) at vnode_if.h:331
#8 0xf012385b in write (p=0xf3df2440, uap=0xf3e87f94) at ../../kern/sys_generic.c:268
#9 0xf01e999f in syscall (frame={tf_es = 0x27, tf_ds = 0x27, tf_edi = 0x0, tf_esi = 0x2000, tf_ebp = 0xefbfd01c,
tf_isp = 0xf3e87fe4, tf_ebx = 0x2000, tf_edx = 0x0, tf_ecx = 0x2000, tf_eax = 0x4, tf_trapno = 0xc,
tf_err = 0x7, tf_eip = 0xbb05, tf_cs = 0x1f, tf_eflags = 0x246, tf_esp = 0xefbfd000, tf_ss = 0x27})
at ../../i386/i386/trap.c:993
#10 0xbb05 in ?? ()
#11 0x1956 in ?? ()
#12 0x107e in ?? ()
(kgdb)
>How-To-Repeat:
tunefs -a 10 /dev/wd0e
>Fix:
>Audit-Trail:
>Unformatted:
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