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Date: Mon, 16 Nov 1998 18:19:33 +0300
From: "Mikhail A. Sokolov" <mishania@demos.net>
To: dg@root.com
Cc: michael_class@gmx.net, current@FreeBSD.ORG, mckusick@mckusick.com
Subject: Re: SMP-System panics after recent ffs_alloc changes
References: <Pine.BSF.4.05.9811141122300.432-100000@pc-micha.mc.hp.com> <199811141432.GAA13419@root.com>
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In-Reply-To: <199811141432.GAA13419@root.com>; from David Greenman <dg@root.com> on Sat, Nov 14, 1998 at 06:32:26AM -0800
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On Sat, Nov 14, 1998 at 06:32:26AM -0800, David Greenman wrote:
# >the recent changes in vfs_cluster.c, buf.h and ffs_alloc.c cause a
# >panic on my SMP-System.
# ...
# >Backing out these changes solves the problem.
# >
# >The panic is"ffs_blkfree: bad size"

I just had this panic on a machine, SMP on, which is from 30 of October, 
and it doesn't have mentioned sysctl (which is probably ok, i'll have to look
to commit logs, but that doesn't matter now, see below why), neither does the 
one from 13th of November have it, which is odd. Please comment?

1)
FreeBSD s.demos.su 3.0-CURRENT FreeBSD 3.0-CURRENT #0: Fri Oct 30 18:23:53 MSK 1998     mishania@s.demos.su:/usr/src/sys/compile/S  i386
2)
FreeBSD p.demos.net 3.0-CURRENT FreeBSD 3.0-CURRENT #2: Fri Nov 13 15:43:05 MSK 1998     mishania@p.demos.net:/usr/src/sys/compile/P  i386
# 
#    No need to back out the changes - there is a sysctl knob to shut off the
# code called "vfs.ffs.doreallocblks"...just set it to 0.
#    Is there anything unusual about your filesystems? Are you using the
# standard 8K/1K block/fragment size?

in the first case, fs's are unusual. it's 4K/1K.

 
# -DG
# 
# David Greenman
# Co-founder/Principal Architect, The FreeBSD Project
# 
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# 

-- 
-mishania

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