panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @ /usr/src/sys/kern/kern_sig.c:981

[Kostik Belousov]

On Thu, Oct 29, 2009 at 11:18:29AM -0700, Mark Atkinson wrote:
> I got this panic this morning, after a fresh upgrade to svn current
> during concurrent NFS access from a couple of clients:
> 
> FreeBSD 9.0-CURRENT #7 r198588: Thu Oct 29 08:55:09 PDT 2009
This is supposedly fixed by r198590.

> 
> Unread portion of the kernel message buffer:
> panic: _mtx_lock_sleep: recursed on non-recursive mutex process lock @
> /usr/src/sys/kern/kern_sig.c:981
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