panic: System call old.recv returning with 1 locks held

[Pawel Jakub Dawidek]

On Mon, Sep 11, 2006 at 07:47:40PM +0200, Alexander Leidinger wrote:
> Quoting Pawel Jakub Dawidek <pjd at FreeBSD.org> (Mon, 11 Sep 2006 12:01:18 +0200):
> 
> > In HEAD (not sure if it was MFCed) jhb@ added code to track number of
> > mutexes/sx-locks acquired/released. So bascially this panic can happen
> > when you leak a lock of any kind.
> > 
> > 'show alllocks' has to show them when the kernel (and modules) is
> > compiled with WITNESS.
> 
> exclusive sleep mutex so_snd r=0 (0xc2b204c4) locked @ kern/uipc_socket.c:984
[...]

Much easier now.

> How to track this down?

Try this patch:

	http://people.freebsd.org/~pjd/patches/uipc_socket.c.2.patch

PS. CCing rwatson@ as he might be interested.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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