[Bug 105725] WARNING: CPU: 0 PID: 487 at drivers/gpu/drm/amd/amdgpu/../display /dc/gpio/gpio_base.c:64 dal_gpio_open_ex+0xc/0x30 [amdgpu]

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Nov 16 01:50:06 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=105725

--- Comment #13 from Petr Cvek <petrcvekcz at gmail.com> ---
Comment on attachment 142485
  --> https://bugs.freedesktop.org/attachment.cgi?id=142485
Suggested fix with a semaphore

It seems there is a race condition between multiple threads which calls
dal_ddc_open(). With attached patch (testing only, ugly) there are no warnings
anymore.

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