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Date:      Sat, 14 Nov 1998 17:23:36 +0100 (MET)
From:      Michael Class <michaelc@bbn.hp.com>
To:        David Greenman <dg@root.com>
Cc:        michael_class@gmx.net, current@FreeBSD.ORG, mckusick@mckusick.com
Subject:   Re: SMP-System panics after recent ffs_alloc changes 
Message-ID:  <Pine.BSF.4.05.9811141720040.2421-100000@pc-micha.mc.hp.com>
In-Reply-To: <199811141432.GAA13419@root.com>

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On Sat, 14 Nov 1998, 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"
> 
>    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.

Thank you, this seems to be a workaroundr; make -j4 world succeeded.

>    Is there anything unusual about your filesystems? Are you using the
> standard 8K/1K block/fragment size?

Yes, this are the partions of the two disks on the system:

6 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:    81920        0    4.2BSD     1024  8192  8192   # (Cyl.    0 - 5*)
  b:   262144    81920      swap                        # (Cyl.    5*- 21*)
  c: 12434310        0    unused     1024  8192         # (Cyl.    0 - 773)
  d:   409600   344064    4.2BSD     1024  8192  8192   # (Cyl.   21*- 46*)
  e:   819200   753664    4.2BSD     1024  8192  8192   # (Cyl.   46*- 97*)
  f: 10861446  1572864    4.2BSD     1024  8192  8192   # (Cyl.   97*- 773*)

4 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:     8252        0    4.2BSD     1024  8192    16   # (Cyl.    0 - 0*)
  b:   327680     8253      swap                        # (Cyl.    1 - 40*)
  c:  4194304        0    unused        0     0         # (Cyl.    0 - 508*)
  d:  3858371   335933    4.2BSD     1024  8192    16   # (Cyl.   40*- 508*)

Michael


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