Re: lor with sndstat (amd64)

--- Mathew Kanner <mat_at_cnd.mcgill.ca> wrote:

> On Aug 26, K Chapman wrote:
> > running: amd64
> > 6.0-CURRENT FreeBSD 6.0-CURRENT #1: Wed Aug 25
> > 23:40:19 EDT
> > 
> > sound from kernel config:
> > device          sound
> > device          "snd_via8233"
> > 
> > noticed this on console ater cat /dev/sndstat :
> > lock order reversal
> >  1st 0xffffffff805d03e0 sndstat (sndstat) _at_
> > /usr/src/sys/dev/sound/pcm/sndstat.c:165
> >  2nd 0xffffff002b61e8f0 user map (user map) _at_
> > /usr/src/sys/vm/vm_map.c:2997
> > KDB: stack backtrace:
> > witness_checkorder() at witness_checkorder+0x654
> > _sx_xlock() at _sx_xlock+0x51
> > vm_map_lookup() at vm_map_lookup+0x44
> > vm_fault() at vm_fault+0xba
> > trap_pfault() at trap_pfault+0x111
> > trap() at trap+0x1b5
> > alltraps_with_regs_pushed() at
> > alltraps_with_regs_pushed+0x5
> > sndstat_read() at sndstat_read+0x8b
> > spec_read() at spec_read+0x1ea
> > vn_read() at vn_read+0x153
> > dofileread() at dofileread+0x9a
> > read() at read+0x68
> > syscall() at syscall+0x4b0
> > Xfast_syscall() at Xfast_syscall+0xa8
> > --- syscall (3, FreeBSD ELF64, read), rip =
> > 0x200689708, rsp = 0x7fffffffeab8, rbp =
> > 0x7fffffffedc4 ---
> > 
> > saw reports of a lor with sndstat at the end of
> last
> > year, but that seemed to have been resolved. 
> sound
> > seems fine however... plays cd's, mp3's ok.
> 
> 	Hello "K",
> 	I've never seen this one before, I'll take a look
> at this on
> the weekend, but since I don't have a 8233 or and
> AMD64 I may not find
> it.
> 
> 	--Mat

thanks for looking.  as with other lor's, it hasnt
broken anything as of yet, i can still use the
soundcard after i see the lor.



		
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