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Date:      Wed, 18 Jul 2007 14:27:53 -0700 (PDT)
From:      Jeff Roberson <jroberson@chesapeake.net>
To:        Rene Ladan <r.c.ladan@gmail.com>
Cc:        current@freebsd.org
Subject:   Re: ULE/SCHED_SMP diff for 7.0
Message-ID:  <20070718142649.Y561@10.0.0.1>
In-Reply-To: <469E83F8.3090103@gmail.com>
References:  <20070716233030.D92541@10.0.0.1> <469E83F8.3090103@gmail.com>

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On Wed, 18 Jul 2007, Rene Ladan wrote:

> Jeff Roberson schreef:
>> http://people.freebsd.org/~jeff/ule.diff
>>
>> This patch is scheduled for inclusion in 7.0.  I would like anyone who
>> cares to run it to validate that it does not create any stability or
>> performance regression over the existing ULE.  This patch replaces ULE
>> with SCHED_SMP, which will now no longer exist as a seperate fork of ULE.
> [..]
>
> I cvsupped this evening at 19:34 UTC.  The new ULE scheduler works fine
> in single-user mode (it survives "make kernel"), but when I go to
> multi-user mode I get a "sched_add: trying to run inhibited thread"
> panic (2 vmcores lost due to fsck :( )

Can you get me a backtrace?  You can enable KDB and DDB in your kernel 
along with INVARIANTS.  Just type 'tr' and record the function names

Thanks,
Jeff

>
> This is on a SMP dualcore Intel T5600 laptop (dmesg + kernelconfig attached)
>
> Could it be caused by some user process (pgsql / boinc) ?
>
> Well, at least the 4BSD continues to run...
>
> Regards,
> Rene
> -- 
> GPG fingerprint = E738 5471 D185 7013 0EE0  4FC8 3C1D 6F83 12E1 84F6
> (subkeys.pgp.net)
>
> "It won't fit on the line."
> 		-- me, 2001
>
>



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