Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 17 Aug 2009 19:57:45 +0200
From:      Sven Esbjerg <esbjerg@xbsd.net>
To:        current@freebsd.org
Subject:   Re: panic: _sx_xlock_hard: recursed on non-recursive sx newbus
Message-ID:  <20090817175745.GA697@esbjerg.name>
In-Reply-To: <alpine.BSF.2.00.0908161947460.1901@fledge.watson.org>
References:  <20090816185930.49144213.ubm.freebsd@gmail.com> <alpine.BSF.2.00.0908161947460.1901@fledge.watson.org>

next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, Aug 16, 2009 at 07:50:03PM +0100, Robert Watson wrote:
> 
> On Sun, 16 Aug 2009, Marc UBM wrote:
> 
> >While loading snd_hda for fun on my fileserver, I got the following panic 
> >(crashdump available for poking around):
> >
> >panic: _sx_xlock_hard: recursed on non-recursive sx newbus @ 
> >/usr/src/sys/kern/subr_bus.c:219
> >
> >Backtrace is attached.
> 
> Hi Marc--
> 
> This is most likely associated with the known "newbus" locking issues from 
> late-break MPSAFEty work on newbus for 8.0.  I understand that Attilio is 
> working actively on fixing this (CC'd).

You could try Attilio's patch:
http://people.freebsd.org/~attilio/hdac.diff

It fixed the panic I was having while loading the sound driver.


-Sven



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090817175745.GA697>