kern/96349: Kernel panic after power break reboot

Kris Kennaway kris at obsecurity.org
Wed Apr 26 18:40:19 UTC 2006


The following reply was made to PR kern/96349; it has been noted by GNATS.

From: Kris Kennaway <kris at obsecurity.org>
To: Ivan Khilko <ivan at ins.dn.ua>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: kern/96349: Kernel panic after power break reboot
Date: Wed, 26 Apr 2006 14:30:10 -0400

 On Wed, Apr 26, 2006 at 07:34:50AM +0000, Ivan Khilko wrote:
 > 
 > >Number:         96349
 > >Category:       kern
 > >Synopsis:       Kernel panic after power break reboot
 > >Confidential:   no
 > >Severity:       serious
 > >Priority:       medium
 > >Responsible:    freebsd-bugs
 > >State:          open
 > >Quarter:        
 > >Keywords:       
 > >Date-Required:
 > >Class:          sw-bug
 > >Submitter-Id:   current-users
 > >Arrival-Date:   Wed Apr 26 07:40:15 GMT 2006
 > >Closed-Date:
 > >Last-Modified:
 > >Originator:     Ivan Khilko
 > >Release:        5.5-PRERELEASE
 > >Organization:
 > >Environment:
 > FreeBSD ivan 5.5-PRERELEASE FreeBSD 5.5-PRERELEASE #4: Fri Feb 24 13:05:11 EET 2006     ivan at ivan:/usr/obj/usr/src-5-Stable/sys/MyKernel  i386
 > >Description:
 >  I use 5.5-PRERELEASE on i386. In Kernel I disable options SOFTUPDATES.
 > Set in /etc/rc.conf background_fsck="NO".
 > 
 > After power break FreeBSD restart automatically and check disks by fsck.  Start
 > in multiuser mode and after all daemons loaded system say "kernel panic",
 > error in FFS. Automatic reboot after 15 seconds. Next boot ended on fsck
 > "Automatic file system check failed". After manual run fsck I see tow way:
 > 
 >  - in sh type exit and continue boot system. In this way system again
 >    say "kernel panic".
 >  - in sh type reboot. System normally rebooted without any errors
 
 It says more than "kernel panic", and the rest is the important bit!
 
 Also please configure crash dumps and/or DDB as described in the
 developers handbook chapter on kernel debugging, and obtain a
 traceback.
 
 Kris


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