panic: sleeping thread owns a non-sleepable lock
Peter Holm
peter at holm.cc
Mon Nov 22 17:13:10 PST 2004
On Mon, Nov 22, 2004 at 04:57:36PM -0500, John Baldwin wrote:
> On Monday 22 November 2004 09:38 am, Peter Holm wrote:
> > During stress test with GENERIC HEAD from Nov 20 08:40 UTC I got:
> > Sleeping on "fdesc" with the following non-sleepable locks held:
> > exclusive sleep mutex fdesc r = 0 (0xc08d15a0) locked @
> > kern/kern_descrip.c:2425 and then
> > panic: sleeping thread (pid 92279) owns a non-sleepable lock
> >
> > http://www.holm.cc/stress/log/cons89.html
>
> Yes, the panic is a result of the earlier warning. Poul-Henning touched this
> code last, so it is probably something for him to look at. I'm unsure how
> msleep() is getting called, however. The turnstile panic is not important,
> can you find the thread that went to sleep (should be pid 92279) and get
> stack trace for that?
>
The ddb trace is in the log, just before call doadump. Let me know if you
need any gdb output.
--
Peter Holm
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