[Bug 207047] New: Crash after failed to pin userptr on amdgpu

[Bug 207047] New: Crash after failed to pin userptr on amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207047

            Bug ID: 207047
           Summary: Crash after failed to pin userptr on amdgpu
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.5.13
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: me@artem.ist
        Regression: No

Created attachment 288139
  --> https://bugzilla.kernel.org/attachment.cgi?id=288139&action=edit
dmesg output since usermode crash that caused bug

When a user-mode program crashes while using amdgpu resources amdgpu fails to
pin userptr then segfaults in the GPU scheduler. This occured while attempting
to port a program to use Wayland and Vulkan on AMD Ryzen 3700X and AMD RX580
using unmodified amdgpu drivers.

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[Bug 207047] Crash after failed to pin userptr on amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207047

bigbeeshane@gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bigbeeshane@gmail.com

--- Comment #1 from bigbeeshane@gmail.com ---
Can you try on 5.6 kernel. Fixes for userptr where submitted and merged into
that release and I think are lined up for 5.5.14

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[Bug 207047] Crash after failed to pin userptr on amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207047

--- Comment #2 from bigbeeshane@gmail.com ---
5.5.14 is out and should contain the fixes for the above 


https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.5.y&id=aeeda19db4ab8b8e5bf653835058728ebe26909f


https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.5.y&id=834de33d3c387345a4eb7511d039742fa91f87c5


https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.5.y&id=9f22030d75b2e9ee7d700c5e1837b050282668a1

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[Bug 207047] Crash after failed to pin userptr on amdgpu

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=207047

Artemis Tosini (me@artem.ist) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |PATCH_ALREADY_AVAILABLE

--- Comment #3 from Artemis Tosini (me@artem.ist) ---
5.5.14 fixes this issue (though I can't use 5.6.1 for an unrelated bug) Thank
you

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