I was able to reproduce it on my RKL, but the reason was bad RAM. After swapping it to another otherwise identical set, it works fine.
The reproducer here was running 'stress-ng --stack 0' -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1918855 Title: Xorg xserver got signal 6 to abort Status in Mesa: Unknown Status in OEM Priority Project: In Progress Status in mesa package in Ubuntu: New Bug description: I run checkbox job com.canonical.certification::memory/memory_stress_ng on focal, and the xserver stops unexpectedly with the following stacktrace: /usr/lib/gdm3/gdm-x-session[1425]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x5619f3a4d59c] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7fae4786741f] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0xcb) [0x7fae476a418b] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x12b) [0x7fae47683859] /usr/lib/gdm3/gdm-x-session[1425]: (EE) unw_get_proc_name failed: no unwind info found [-10] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 4: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (?+0x0) [0x7fae457d7aec] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 5: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (nouveau_drm_screen_create+0x25c8ec) [0x7fae46529c9c] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 6: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (__driDriverGetExtensions_zink+0x2561d) [0x7fae4582c74d] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 7: /usr/lib/xorg/modules/libglamoregl.so (glamor_destroy_pixmap+0x150) [0x7fae47007480] /usr/lib/gdm3/gdm-x-session[1425]: (EE) unw_get_proc_name failed: no unwind info found [-10] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 8: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0) [0x7fae47040a30] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 9: /usr/lib/xorg/Xorg (BlockHandler+0xa5) [0x5619f38f0995] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 10: /usr/lib/xorg/Xorg (WaitForSomething+0x122) [0x5619f3a46c12] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 11: /usr/lib/xorg/Xorg (SendErrorToClient+0x117) [0x5619f38ebcf7] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 12: /usr/lib/xorg/Xorg (InitFonts+0x3b4) [0x5619f38effc4] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0x7fae476850b3] /usr/lib/gdm3/gdm-x-session[1425]: (EE) 14: /usr/lib/xorg/Xorg (_start+0x2e) [0x5619f38d9a2e] More info: I searched the Internet and got a bug with the same stacktrace: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3468 https://gitlab.freedesktop.org/mesa/mesa/-/issues/2859 To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/1918855/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp