Date: Tue, 16 Dec 1997 17:42:10 +0300 (MSK) From: "Igor Timkin" <ivt@gamma.ru> To: tlambert@primenet.com (Terry Lambert) Cc: ivt@gamma.ru, freebsd-hackers@FreeBSD.ORG Subject: Re: panic: blkfree: freeling free block/frag Message-ID: <199712161442.RAA24936@crocus.gamma.ru> In-Reply-To: <199712051953.MAA16124@usr08.primenet.com> from Terry Lambert at "Dec 5, 97 07:53:14 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
Terry Lambert writes:
> > Every 4-8 days my news server (~10 full incoming feeds, ~50
> > outgoing feeds) crash:
> > panic: blkfree: freeing free block
> > or
> > panic: blkfree: freeing free frag
>
> Long Answer:
>
> Generally, this type of problem means you should rebuild the news spool,
> since *any* corruption could result in invalid information on the disk
> that could result in a panic.
>
> Most likely, you crashed once, and you expected fsck to do something
> that it can't do reliably: recover an async mounted partition. The
> partition was "recovered" and marked clean, but when you reference
> a particular disk metadata construct, it goes off into the weeds
> because the recovery was imperfect.
Unfortunally, I still have this problem.
I had make newfs 5 days ago. But yestarday I got the same panic
(uptime 5.2 days):
ivt@news:/var/tmp/innfeed:2:306>gdb -k /sys/compile/NEWS/kernel /usr/local/news/crash/vmcore.1
GDB is free software and you are welcome to 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.
GDB 4.16 (i386-unknown-freebsd),
Copyright 1996 Free Software Foundation, Inc...
IdlePTD 1f0000
current pcb at 1d79c0
panic: blkfree: freeing free block
#0 boot (howto=256) at ../../kern/kern_shutdown.c:266
266 dumppcb.pcb_cr3 = rcr3();
(kgdb) where
#0 boot (howto=256) at ../../kern/kern_shutdown.c:266
#1 0xe01105e2 in panic (fmt=0xe0188a85 "blkfree: freeing free block")
at ../../kern/kern_shutdown.c:390
#2 0xe0188c57 in ffs_blkfree (ip=0xe3e50500, bno=10, size=4096)
at ../../ufs/ffs/ffs_alloc.c:1230
#3 0xe018b09a in ffs_indirtrunc (ip=0xe3e50500, lbn=-12, dbn=394248,
lastbn=-1, level=0, countp=0xdfbffd9c) at ../../ufs/ffs/ffs_inode.c:500
#4 0xe018aac8 in ffs_truncate (ap=0xdfbffe74) at ../../ufs/ffs/ffs_inode.c:317
#5 0xe018e6a5 in ufs_inactive (ap=0xdfbffea0) at vnode_if.h:1003
#6 0xe012fb3f in vrele (vp=0xe3b12800) at vnode_if.h:699
#7 0xe012fa33 in vput (vp=0xe3b12800) at ../../kern/vfs_subr.c:858
#8 0xe0191e80 in ufs_remove (ap=0xdfbffef4) at ../../ufs/ufs/ufs_vnops.c:697
#9 0xe0131d25 in unlink (p=0xe4dc6e00, uap=0xdfbfff94, retval=0xdfbfff84)
at vnode_if.h:459
#10 0xe01ac1ff in syscall (frame={tf_es = 39, tf_ds = -541130713, tf_edi = 1,
tf_esi = 28736, tf_ebp = -541074456, tf_isp = -541065244,
tf_ebx = 28944, tf_edx = 0, tf_ecx = 41472, tf_eax = 10, tf_trapno = 7,
tf_err = 7, tf_eip = 268950145, tf_cs = 31, tf_eflags = 582,
tf_esp = -541074568, tf_ss = 39}) at ../../i386/i386/trap.c:890
#11 0x1007da81 in ?? ()
#12 0x2453 in ?? ()
#13 0x2914 in ?? ()
#14 0x1095 in ?? ()
fsck -y /var/spool/news:
** /dev/rccd0c
** Phase 1 - Check Blocks and Sizes
INCORRECT BLOCK COUNT I=12450 (152 should be 0)
CORRECT? yes
** Phase 2 - Check Pathnames
UNALLOCATED I=12447 OWNER=news MODE=0
SIZE=0 MTIME=Dec 15 21:35 1997
NAME=/relcom/netnews/big/11105
REMOVE? yes
UNALLOCATED I=12448 OWNER=news MODE=0
SIZE=0 MTIME=Dec 15 21:35 1997
NAME=/relcom/netnews/big/11107
REMOVE? yes
UNALLOCATED I=12449 OWNER=news MODE=0
SIZE=0 MTIME=Dec 15 21:35 1997
NAME=/relcom/nennews/big/11108
REMOVE? yes
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
LINK COUNT FILE I=12450 OWNER=news MODE=100664
SIZE=0 MTIME=Dec 15 21:35 1997 COUNT 0 SHOULD BE 1
ADJUST? yes
** Phase 5 - Check Cyl groups
FREE BLK COUNT(S) WRONG IN SUPERBLOCK
SALVAGE? yes
BLK(S) MISSING IN BIT MAPS
SALVAGE? yes
SUMMARY INFORMATION BAD
SALVAGE? yes
CLEAN FLAG NOT SET IN SUPERBLOCK
FIX? yes
I don't have any ahc and kernel error and warning messages,
the clean news spool.
I have crash dump image and may put it on my ftp server or download
it on any server (512M).
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199712161442.RAA24936>