Niels, I have been in the world of pain with amd(carruzo) since i recently moved from x server 1.17 and fglx prop driver( fedora 23 ) to fedora 27 and amdgpu.
Based on this expirience, id check your x version and verify if you need to use amdgpu/radeon or not. On Dec 12, 2017 8:42 AM, "Niels Walet" <niels.wa...@manchester.ac.uk> wrote: We seem to be getting some clients (like mathematica) that can reliable crash X11 on our boxes with a Radeon card after a recent (kernel?) update. The system is running a fully udates SL 7.4. This seems to be linked to using glx. Anyone known what this is and whether there is a fix? Niels lspci: 1:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XTX [Radeon HD 8490 / R5 235X OEM] 01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Caicos HDMI Audio [Radeon HD 6450 / 7450/8450/8490 OEM / R5 230/235/235X OEM] trace from Xorg.0.log: [ 6003.390] (EE) Backtrace: [ 6003.391] (EE) 0: /usr/bin/X (xorg_backtrace+0x55) [0x5607ea20d655] [ 6003.391] (EE) 1: /usr/bin/X (0x5607ea061000+0x1b0369) [0x5607ea211369] [ 6003.391] (EE) 2: /lib64/libpthread.so.0 (0x7f11bbd38000+0xf5e0) [0x7f11bbd475e0] [ 6003.391] (EE) 3: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x1d72a0) [0x7f11b33d12a0] [ 6003.391] (EE) 4: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x146001) [0x7f11b3340001] [ 6003.391] (EE) 5: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x11e462) [0x7f11b3318462] [ 6003.391] (EE) 6: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x11e49e) [0x7f11b331849e] [ 6003.391] (EE) 7: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x11e539) [0x7f11b3318539] [ 6003.391] (EE) 8: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x8a552) [0x7f11b3284552] [ 6003.391] (EE) 9: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x1e488c) [0x7f11b33de88c] [ 6003.391] (EE) 10: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x35028d) [0x7f11b354a28d] [ 6003.391] (EE) 11: /usr/lib64/dri/r600_dri.so (0x7f11b31fa000+0x34f403) [0x7f11b3549403] [ 6003.391] (EE) 12: /usr/lib64/xorg/modules/extensions/libglx.so (0x7f11b94a6000+0x2fb69) [0x7f11b94d5b69] [ 6003.391] (EE) 13: /usr/lib64/xorg/modules/extensions/libglx.so (0x7f11b94a6000+0x27660) [0x7f11b94cd660] [ 6003.391] (EE) 14: /usr/bin/X (0x5607ea061000+0x78472) [0x5607ea0d9472] [ 6003.391] (EE) 15: /usr/lib64/xorg/modules/extensions/libglx.so (0x7f11b94a6000+0x23407) [0x7f11b94c9407] [ 6003.391] (EE) 16: /usr/lib64/xorg/modules/extensions/libglx.so (0x7f11b94a6000+0x27880) [0x7f11b94cd880] [ 6003.391] (EE) 17: /usr/bin/X (0x5607ea061000+0x53a2b) [0x5607ea0b4a2b] [ 6003.391] (EE) 18: /usr/bin/X (0x5607ea061000+0x57aca) [0x5607ea0b8aca] [ 6003.391] (EE) 19: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7f11bb996c05] [ 6003.391] (EE) 20: /usr/bin/X (0x5607ea061000+0x41bce) [0x5607ea0a2bce] [ 6003.391] (EE) [ 6003.391] (EE) Segmentation fault at address 0x58 [ 6003.391] (EE) Fatal server error: [ 6003.391] (EE) Caught signal 11 (Segmentation fault). Server aborting --- Prof. Niels R. Walet Phone: +44(0)1613063693 <+44%20161%20306%203693> *School of Physics and Astronomy* Mobile: +44(0)7516622121 <+44%207516%20622121> *The University of Manchester * Room 7.7, Schuster Building *Manchester, M13 9PL, UK* email: niels.wa...@manchester.ac.uk twitter: @nwalet
