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SubjectRe: [PATCH][2.6] Completely out of line spinlocks / i386
On Thu, 12 Aug 2004 10:01:50 +1000
Keith Owens <kaos@ocs.com.au> wrote:

> Tweak the profile code to detect that the instruction pointer is in the
> out of line spinlock code and replace the ip with the caller's ip. We
> already do that for ia64, where the out of line spinlock code is a big
> win. A kdb backtrace on an ia64 contended lock will even decode the
> address of the lock, which is only possible because the lock address is
> in a known location for this case.

We were doing this on sparc64 as well.
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