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SubjectRe: [patch] increase spinlock-debug looping timeouts (write_lock and NMI)
On Wed, 21 Jun 2006 22:45:49 -0700 (PDT)
Dave Olson <olson@unixfolk.com> wrote:

> On Tue, 20 Jun 2006, Andrew Morton wrote:
> | > Intended to be more or less stock fc4 but with CONFIG_PCI_MSI=y and
> | > 2.6.17-based patch so the 8131 MSI quirk isn't enabled.
> | >
> | > >From the config file:
> | > CONFIG_DEBUG_SPINLOCK=y
> | > CONFIG_DEBUG_SPINLOCK_SLEEP=y
> |
> | OK, I goofed again.
> |
> | It would be super-interesting to know whether CONFIG_DEBUG_SPINLOCK=n
> | improves things.
>
> It does. No stalls, hangs, or nmi's in several hours of running the
> test that previously failed on almost every run (with long stalls, system
> hangs, or NMI watchdogs), on the same hardware.
>
> I made no other changes to the kernel config than turning both of
> the above off.
>

Well isn't that interesting, thanks. We have our 2.6.17.x patch.

Now we need to work out why.
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