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Date: Fri, 16 Dec 2011 17:10:31 +0100
From: Marius Strobl <marius@alchemy.franken.de>
To: freebsd-current@freebsd.org, freebsd-sparc64@freebsd.org
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Subject: Re: sparc64 r228561 panic: kmem_suballoc: bad status return of 3
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On Fri, Dec 16, 2011 at 11:19:22AM +0000, Anton Shterenlikht wrote:
> On Fri, Dec 16, 2011 at 11:37:20AM +0100, Marius Strobl wrote:
> > On Fri, Dec 16, 2011 at 08:40:48AM +0000, Anton Shterenlikht wrote:
> > > Updating from r216048 to r228561 on sparc64,
> > > with sys/conf/newvers.sh changed to REVISION="9.9".
> > > 
> > > Trinscribed by hand:
> > > 
> > > FreeBSD 9.9-CURRENT #3 r228561M:
> > > 
> > > panic: kmem_suballoc: bad status return of 3
> > > KDB: enter: panic
> > > [ thread pid 0 tid 0 ]
> > > Stopped at 0x02937e0:   ta    %xcc,1
> > > db>
> > > 
> > > The keyboard froze, couldn't get a bt,
> > > required a cold reboot.
> > > 
> > > My /etc/make.conf and kernel config files are below.
> > > 
> > > Any advice?
> > > 
> > 
> > Hrm, doesn't look like I can reproduce this. What machine model is
> > that and how much RAM does it have?
> 
> >From dmesg:
> 
> real memory  = 2147483648 (2048 MB)
> avail memory = 2079449088 (1983 MB)
> cpu0: Sun Microsystems UltraSparc-IIIi Processor (1503.00 MHz CPU)
> 
> > Do you use any loader tuneables?
> 
> I don't think so. You mean like /boot/loader.conf?
> I haven't got this file at all.
> 

Even with a Blade 1500, which is the closest match to your machine
that I have, and a kernel built with your configuration file I can't
reproduce this using r228583. I'd suggest to test with a kernel built
using an empty object directory and without any local modifications.
If that still doesn't solve the problem given that there isn't even
a backtrace I just can suggest to do a binary search for the offending
commit, probably accounting especially for the changes to the VM
within the window of revisions in question.

Marius