Help debugging non-sleepable lock panic on 6.2-RELEASE

[Kostik Belousov]

On Wed, Feb 28, 2007 at 01:54:10PM +0000, Jason Thomson wrote:
> Regarding:
> 
> http://lists.freebsd.org/pipermail/freebsd-stable/2007-February/033241.html
> 
> 
> Konstantin Belousov wrote:
> 
> >On Thu, Feb 22, 2007 at 06:50:37PM +0000, Jason Thomson wrote:
> >
> >
> >Try this (already committed to CURRENT as rev. 1.579). I would be very
> >interesting in getting feedback.
> 
> Konstantin,
> 
> thanks for your help.
> 
> The patch below *appears* to have helped.
> 
> The server survived for more than 24 hours under heavy (mysqld / apache)
> load.
> 
> Previously,  it would not typically survive this test for more than 5
> hours.
> 
> It's difficult to be 100% sure as the server load is not reliably
> reproducable.
> 
> I will keep you informed of any developments.
> 
> Thanks for your help.
> 
> Kind regards,

Good. I MFCed it today as rev. 1.516.2.9 of amd64/amd64/pmap.c.
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