Peter Holm wrote:
On Tue, Oct 12, 2010 at 12:36:56AM +0000, David Xu wrote:
Author: davidxu
Date: Tue Oct 12 00:36:56 2010
New Revision: 213714
URL: http://svn.freebsd.org/changeset/base/213714

Log:
  Add a flag TDF_TIDHASH to prevent a thread from being
  added to or removed from thread hash table multiple times.

Modified:
  head/sys/kern/kern_thread.c
  head/sys/sys/proc.h

Modified: head/sys/kern/kern_thread.c
==============================================================================
--- head/sys/kern/kern_thread.c Mon Oct 11 23:24:57 2010        (r213713)

Is this the same problem?

panic: Bad link elm 0xc767e870 next->prev != elm
on r213828.

http://people.freebsd.org/~pho/stress/log/leopard3.002.txt

- Peter

Thanks for testing, can you try this patch ?
http://people.freebsd.org/~davidxu/tidhash/tidhash4.diff

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