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Date:      Fri, 17 Jan 1997 12:40:49 GMT
From:      nick@eunet.ie
To:        FreeBSD-gnats-submit@freebsd.org
Subject:   kern/2516: Filesystem trouble in 2.2-BETA_A
Message-ID:  <199701171240.MAA09002@news.Ireland.EU.net>
Resent-Message-ID: <199701171250.EAA27652@freefall.freebsd.org>

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>Number:         2516
>Category:       kern
>Synopsis:       Bug in ffs code causes block corruption
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jan 17 04:50:02 PST 1997
>Last-Modified:
>Originator:     Nick Hilliard
>Organization:
EUnet Ireland
>Release:        FreeBSD 2.2-BETA_A i386
>Environment:

	DEC prioris LX, AHA3940 SCSI, Seagate Barracuda 32250W 2Gb disk.

>Description:

	One of the systems in here crashed this morning with an error:

		blkfree: freeing free block

	The partition affected was:

: Filesystem   1K-blocks     Used    Avail Capacity  Mounted on
: /dev/sd1s1f     794783   488075   266969    65%    /var/spool/overview

: # dmesg | grep ahc3
: ahc3 <Adaptec 3940 SCSI host adapter> rev 3 int a irq 5 on pci1:5
: ahc3: aic7870 Wide Channel B, SCSI Id=7, 16 SCBs
: ahc3 waiting for scsi devices to settle
: (ahc3:1:0): "SEAGATE ST32550W 0021" type 0 fixed SCSI 2
: sd1(ahc3:1:0): Direct-Access 2047MB (4194058 512 byte sectors)

	I don't have the output from the printf statement immediately
	preceding this in /sys/ufs/ffs/ffs_alloc.c.

	The firesystem was created with newfs (no special args) last Sunday
	(97/01/12) and the machine had been up since then without any
	trouble.

>How-To-Repeat:

	Unknown.

>Fix:
	
	unknown, sorry :-/
>Audit-Trail:
>Unformatted:



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