[Bug 268492] Loading i915kms freezes the system after commit 50f61166f7b911a7807b3cb76d0f382a13fbafcd

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From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 12 Jan 2023 01:45:20 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268492

Graham Perrin <grahamperrin@freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://reviews.freebsd.org
                   |                            |/D37699

--- Comment #8 from Graham Perrin <grahamperrin@freebsd.org> ---
(In reply to Philippe Michel from comment #7)

> 4ad93073a17d579625217084b7831e5419c7758f

<https://github.com/freebsd/freebsd-src/commit/4ad93073a17d579625217084b7831e5419c7758f>
(2023-01-07)


> 1e010401b80196ac5904ad4e8b8b9589e61394b4 

<https://github.com/freebsd/freebsd-src/commit/1e010401b80196ac5904ad4e8b8b9589e61394b4>
(2023-01-07)

>> LinuxKPI: linux/seqlock.h: Fix write_seqcount_(begin|end)
>> in seqcount_mutex_t case with removal of extraneous mutex lock/unlock
>> calls and addition of missing critical section.
>> While here strip one inline wrap layer to reduce code size.
>> 
>> Fixes startup lockup of i915kms after update to drm-kmod v5.12
>> 
>> (cherry picked from commit 68f08e26e2797707c76f8c6423baa41b25dd9df4)

<https://cgit.freebsd.org/src/log/?h=stable%2F13&qt=range&q=1e010401b80196ac5904ad4e8b8b9589e61394b4>

<https://github.com/freebsd/freebsd-src/commit/68f08e26e2797707c76f8c6423baa41b25dd9df4>
gives us D37699.

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