kern/116913: panic: ffs_blkfree: freeing free block

Oliver Fromme olli at
Thu Nov 29 03:50:03 PST 2007

The following reply was made to PR kern/116913; it has been noted by GNATS.

From: Oliver Fromme <olli at>
To: Rolf Witt <rowi at>, bug-followup at
Subject: Re: kern/116913: panic: ffs_blkfree: freeing free block
Date: Thu, 29 Nov 2007 12:42:33 +0100 (CET)

 Rolf Witt wrote:
  > Oliver Fromme wrote:
  > > I assume that the submitter meant that he can no longer
  > > reproduce it after applying the patch that he mentioned
  > > (for sys/ufs/ffs/ffs_softdep.c).
  > > 
  > > So I think this PR should stay open until that patch (or
  > > a better one) is comitted.
  > No, this patch do nothing, this was a try by Eric Anderson to get more
  > informations for debugging.
 OK, thanks for clarifying.
  > But after the commit to sys/vm/vm_object.c (revision 1.386
  > date: 2007/10/18 23:02:18) i have seen no more panics.
 Are you sure that patch was the culprit?  I cannot
 reproduce the panic easily; it appeared only once
 after 5 weeks uptime on our machine.  I notice this
 machine still has rev. 1.385 (the last update was
 just one day before the commit).  So maybe it's time
 for the next update.
 Thanks again for the information.
 Best regards
 Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
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