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SubjectRe: [PATCH 5.15 000/923] 5.15.3-rc3 review
On Wed, Nov 17, 2021 at 04:16:51PM -0800, Kees Cook wrote:
> On Wed, Nov 17, 2021 at 03:50:17PM -0800, Linus Torvalds wrote:
> > Sorry for top-posting and quoting this all, but the actual people
> > involved with the wchan changes don't seem to be on the participant
> > list.
> Adding more folks from a private report and
> and for the new people, here's a lore link for this thread:
> FWIW, earlier bisection pointed to the stable backport of
> 5d1ceb3969b6b2e47e2df6d17790a7c5a20fcbb4 being the primary culprit.
> At first glance it seems to me that the problem with -stable is that an
> unvetted subset of the wchan refactoring series landed in -stable.

What would be the vetted subset? :)

Anyway, I have now dropped the following patches that were in the
5.15.3-rc tree:
bc9bbb81730e ("x86: Fix get_wchan() to support the ORC unwinder")
42a20f86dc19 ("sched: Add wrapper for get_wchan() to keep task blocked")
5d1ceb3969b6 ("x86: Fix __get_wchan() for !STACKTRACE")

And will push out another -rc release to let people test.

If there are any other commits I should have also dropped, please let me


greg k-h

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