*BSD News Article 85817


Return to BSD News archive

Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!uunet!in3.uu.net!144.212.100.12!news.mathworks.com!fu-berlin.de!irz401!orion.sax.de!uriah.heep!news
From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: panic doing "dump" on /usr to st0(8mm)
Date: 27 Dec 1996 16:53:54 GMT
Organization: Private BSD site, Dresden
Lines: 20
Message-ID: <5a0uv2$df1@uriah.heep.sax.de>
References: <596umn$jeg@cronkite.cisco.com>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
NNTP-Posting-Host: localhost.heep.sax.de
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-Newsreader: knews 0.9.6
X-Phone: +49-351-2012 669
X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F  93 21 E0 7D F9 12 D6 4E
Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:33294

fty@cisco.com (Frank Terhaar-Yonkers) wrote:

> The system is coming up with some totally bogus value for bp->b_bcount  ..
> This happens in single-user mode and is repeatable every time.  
> Is the filesystem corrupt?  It fsck-s cleanly ...

It looks as if the fs were corrupt.  If you can figure out the i-node
number, you might try if you could correct this with fsdb.

The disk driver should probably be more careful, or the interface to
the bounce buffers be changed so that vm_bounce_alloc() could return
an error status, which in turn aborts the attempted transfer, instead
of panicing.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)