[Bug 111004] X crash in memcpy (RX590)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jun 26 13:57:57 UTC 2019


Michel Dänzer <michel at daenzer.net> changed:

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

--- Comment #1 from Michel Dänzer <michel at daenzer.net> ---
(In reply to maxamar from comment #0)
> [   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]
> [...]
> [   131.914] (EE) Illegal instruction at address 0x7fbb6e7262f7

This looks like a bug in /lib/x86_64-linux-gnu/libc.so.6, executing an
instruction which isn't supported by your CPU.

> After (replace memcpy in mesa libs in radeonsi with custom simple impl):

How exactly did you "replace memcpy"?

> 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

If this isn't due to an issue with your memcpy replacement, it's probably a
Mesa issue or maybe a kernel one, but most certainly not an xf86-video-amdgpu

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