6.1 prerelease graid3 livelock?

[Bradley W. Dutton]

Ok, I had already installed and booted the first patch. I then rebuilt the
kernel with the second patch. Trying to reboot from the first patch to the
second resulted in a crash/panic on shutdown. I didn't capture the output
from this. Once I booted the second patch the machine panics in the boot
process, in short:
/dev/raid3t/moviesf: clean,o 190615 free (19p11 frags, 23588 oblocks, 0.8%
fralogy locked @ /usr/src/sys/geom/raid3/g_raid3.c:773.
KDB: enter: panic
[thread pid 35 tid 100030 ]
Stopped at      kdb_enter+0x30: leave

The text copied from the serial console was a little garbled, it did say
something like:
sx lock, geom topology locked...

I did an "alltrace" at that point which I'll send seperately.

Thanks,
Brad


> On Thu, Apr 27, 2006 at 08:55:35AM +0200, Pawel Jakub Dawidek wrote:
> +> On Sun, Apr 23, 2006 at 12:04:33PM -0700, Bradley W. Dutton wrote:
> +> +> Hi,
> +> +>
> +> +> I'm experiencing a sort of livelock on a 6.1 prerelease box. It
> appears
> +> +> all  of the IO related activity hangs but the box continues to do
> +> +> routing/NAT/etc  for internet access from my other boxes. I can
> usually
> +> +> get the lockup to occur within about 12 hours of booting.
> +>
> +> Ok, I think I found it. Could you try this patch:
> +>
> +> 	http://people.freebsd.org/~pjd/patches/g_raid3.c.4.patch
>
> markus@ reported the livelock is still there, so please try this patch
> instead:
>
> 	http://people.freebsd.org/~pjd/patches/g_raid3.c.5.patch