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Date: Fri, 01 Dec 2000 23:23:29 +1100
From: Andrew Morton <andrewm@uow.edu.au>
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To: Lawrence Walton <lawrence@the-penguin.otak.com>
CC: Alexander Viro <viro@math.psu.edu>, linux-kernel@vger.kernel.org
Subject: Re: corruption
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Andrew Morton wrote:
> 
> Andrew Morton wrote:
> >
> > I bet this'll catch it:
> >
> > --- include/linux/list.h.orig   Fri Dec  1 08:33:36 2000
> > +++ include/linux/list.h        Fri Dec  1 08:33:55 2000
> > @@ -90,6 +90,7 @@
> >  static __inline__ void list_del(struct list_head *entry)
> >  {
> >         __list_del(entry->prev, entry->next);
> > +       entry->next = entry->prev = 0;
> >  }
> >
> >  /**
> >
> > First person to send a ksymoops trace gets a cookie.
> 
> mmmm... choc-chip.
> 
> With the above patch applied the machine crashed after an hour. Crashed
> a second time during the e2fsck.  gdb backtrace:
> 


This sync_buffers corruption is fixed by Jens' patch, which is present
in test12-pre3.

However it is possible that the original list_head-based corruption which
I reported will not be fixed by this patch. This is because none of the
structure offsets match up with what I observed, and because Lawrence's
sytem is "SCSI-only" - no SCSI drivers are headactive.

Lawrence, did you see this problem with test12-pre3?
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