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From: "Willem Jan Withagen" <wjw@withagen.nl>
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Date: Mon, 19 Jul 2004 08:51:42 +0200
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cc: current@freebsd.org
Subject: Re: panic: Duplicate free of item 0xffffff005c4a8600
	fromzone0xffffff007fed4780(Mbuf)
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> I'll starts some more tests before I'm of to bed.

This mornings result:
====
System call getdirentries returning with the following locks held:
exclusive sleep mutex bdone lock r = 0 (0xffffffff805fd080) locked @ /home2/src/
sys/kern/vfs_bio.c:3767
panic: witness_warn
cpuid = 0;
KDB: stack backtrace:
kdspin lock sched lock held by 0xffffff007b6cc940 for > 5 seconds
panic: spin lock held too long
cpuid = 0;
KDB: enter: panic
====

But no way to get into the debugger.
Does not look like it is much network related???

--WjW