ULE/SCHED_SMP diff for 7.0

[Jeff Roberson]

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
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