[Bug 111004] New: X crash in memcpy (RX590)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111004

            Bug ID: 111004
           Summary: X crash in memcpy (RX590)
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/AMDgpu
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: maxamar at mail.ru
        QA Contact: xorg-team at lists.x.org

X crashes with any configuration on AMD RX590 except ESXi & Xen passthru (works
in Windows 10).
Replacing memcpy with custom impl partially solved the problem.
Please see this thread on debian bugtracker:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931066

Before (compiled radeonsi_dri from source):
[   131.909] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x55f57cf882c9]
[   131.909] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x50)
[0x7fbb6e85977f]
[   131.910] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (memcpy+0x2d7)
[0x7fbb6e7263b7]
[   131.910] (EE) 3: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(radeon_drm_winsys_create+0xc8c8e) [0x7fbb6ced280e]
[   131.910] (EE) 4: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(radeon_drm_winsys_create+0xa6220) [0x7fbb6ce8ced0]
[   131.911] (EE) 5: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(radeon_drm_winsys_create+0x96e35) [0x7fbb6ce6e865]
[   131.911] (EE) 6: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(radeon_drm_winsys_create+0x97b21) [0x7fbb6ce6fe51]
[   131.911] (EE) 7: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(amdgpu_winsys_create+0x3f1) [0x7fbb6ce40aa1]
[   131.911] (EE) unw_get_proc_name failed: no unwind info found [-10]
[   131.911] (EE) 8: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so (?+0x0)
[0x7fbb6cc22100]
[   131.912] (EE) 9: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(__driDriverGetExtensions_virtio_gpu+0x9d698) [0x7fbb6cd5d288]
[   131.912] (EE) 10: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(__driDriverGetExtensions_virtio_gpu+0x40ea) [0x7fbb6cc2a6da]
[   131.912] (EE) 11: /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
(__driDriverGetExtensions_virtio_gpu+0x12f8) [0x7fbb6cc24968]
[   131.912] (EE) 12: /usr/lib/x86_64-linux-gnu/libgbm.so.1
(gbm_surface_has_free_buffers+0x1b06) [0x7fbb6da271b6]
[   131.913] (EE) 13: /usr/lib/x86_64-linux-gnu/libgbm.so.1
(gbm_surface_has_free_buffers+0x1e83) [0x7fbb6da27833]
[   131.913] (EE) 14: /usr/lib/x86_64-linux-gnu/libgbm.so.1
(gbm_create_device+0x57) [0x7fbb6da235d7]
[   131.913] (EE) unw_get_proc_name failed: no unwind info found [-10]
[   131.913] (EE) 15: /usr/lib/xorg/modules/drivers/amdgpu_drv.so (?+0x0)
[0x7fbb6da3d650]
[   131.913] (EE) 16: /usr/lib/xorg/Xorg (InitOutput+0x9c0) [0x55f57ce6a6a0]
[   131.913] (EE) 17: /usr/lib/xorg/Xorg (InitFonts+0x1cf) [0x55f57ce2d76f]
[   131.914] (EE) 18: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xeb)
[0x7fbb6e6a809b]
[   131.914] (EE) 19: /usr/lib/xorg/Xorg (_start+0x2a) [0x55f57ce1767a]
[   131.914] (EE)
[   131.914] (EE) Illegal instruction at address 0x7fbb6e7262f7

After (replace memcpy in mesa libs in radeonsi with custom simple impl): X
boots ok but error in amdgpu dmesg (hangs):
[ 3473.934176] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
signaled seq=2, emitted seq=3
[ 3473.934234] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information:
process Xorg pid 17702 thread Xorg:cs0 pid 17703
[ 3473.934239] amdgpu 0000:01:00.0: GPU reset begin!
[ 3474.466516] amdgpu 0000:01:00.0: GPU pci config reset

Tested both on current & latest kernels, oibaf drivers don't help.

Thanks.

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