After two times pass for using mesa lib in ppa:oibaf/graphics-drivers, I reproduce the x server stop error with different stacktrace:
Mar 12 12:43:12 stress-ng: memory (MB): total 15729.63, free 152.17, shared 43.86, buffer 0.36, swap 2048.00, free swap 0.01 Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) Backtrace: Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x55d66e90159c] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7f5f95cc941f] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0xcb) [0x7f5f95b0618b] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x12b) [0x7f5f95ae5859] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) unw_get_proc_name failed: no unwind info found [-10] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 4: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (?+0x0) [0x7f5f939fd665] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 5: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (nouveau_drm_screen_create+0x29a098) [0x7f5f948c5d08] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 6: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (__driDriverGetExtensions_zink+0x7cf0d) [0x7f5f93b0214d] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 7: /usr/lib/xorg/Xorg (present_register_complete_notify+0x673) [0x55d66e87dcf3] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 8: /usr/lib/xorg/Xorg (present_register_complete_notify+0x1fd9) [0x55d66e880ee9] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 9: /usr/lib/xorg/Xorg (present_register_complete_notify+0x809) [0x55d66e87e069] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 10: /usr/lib/xorg/Xorg (present_register_complete_notify+0x845) [0x55d66e87e105] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 11: /usr/lib/xorg/Xorg (TimerSet+0x180) [0x55d66e8fabd0] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 12: /usr/lib/xorg/Xorg (TimerSet+0x1e8) [0x55d66e8fac88] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 13: /usr/lib/xorg/Xorg (WaitForSomething+0x235) [0x55d66e8fad25] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 14: /usr/lib/xorg/Xorg (SendErrorToClient+0x117) [0x55d66e79fcf7] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 15: /usr/lib/xorg/Xorg (InitFonts+0x3b4) [0x55d66e7a3fc4] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 16: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0x7f5f95ae70b3] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) 17: /usr/lib/xorg/Xorg (_start+0x2e) [0x55d66e78da2e] Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: Fatal server error: Mar 12 12:43:12 /usr/lib/gdm3/gdm-x-session[1949]: (EE) Caught signal 6 (Aborted). Server aborting
The detail log is in lp:1917692.
After two times pass for using mesa lib in ppa:oibaf/ graphics- drivers, I reproduce the x server stop error with different stacktrace:
Mar 12 12:43:12 stress-ng: memory (MB): total 15729.63, free 152.17, shared 43.86, buffer 0.36, swap 2048.00, free swap 0.01 gdm3/gdm- x-session[ 1949]: (EE) gdm3/gdm- x-session[ 1949]: (EE) Backtrace: gdm3/gdm- x-session[ 1949]: (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+ 0x13c) [0x55d66e90159c] gdm3/gdm- x-session[ 1949]: (EE) 1: /lib/x86_ 64-linux- gnu/libpthread. so.0 (funlockfile+0x60) [0x7f5f95cc941f] gdm3/gdm- x-session[ 1949]: (EE) 2: /lib/x86_ 64-linux- gnu/libc. so.6 (gsignal+0xcb) [0x7f5f95b0618b] gdm3/gdm- x-session[ 1949]: (EE) 3: /lib/x86_ 64-linux- gnu/libc. so.6 (abort+0x12b) [0x7f5f95ae5859] gdm3/gdm- x-session[ 1949]: (EE) unw_get_proc_name failed: no unwind info found [-10] gdm3/gdm- x-session[ 1949]: (EE) 4: /usr/lib/ x86_64- linux-gnu/ dri/iris_ dri.so (?+0x0) [0x7f5f939fd665] gdm3/gdm- x-session[ 1949]: (EE) 5: /usr/lib/ x86_64- linux-gnu/ dri/iris_ dri.so (nouveau_ drm_screen_ create+ 0x29a098) [0x7f5f948c5d08] gdm3/gdm- x-session[ 1949]: (EE) 6: /usr/lib/ x86_64- linux-gnu/ dri/iris_ dri.so (__driDriverGet Extensions_ zink+0x7cf0d) [0x7f5f93b0214d] gdm3/gdm- x-session[ 1949]: (EE) 7: /usr/lib/xorg/Xorg (present_ register_ complete_ notify+ 0x673) [0x55d66e87dcf3] gdm3/gdm- x-session[ 1949]: (EE) 8: /usr/lib/xorg/Xorg (present_ register_ complete_ notify+ 0x1fd9) [0x55d66e880ee9] gdm3/gdm- x-session[ 1949]: (EE) 9: /usr/lib/xorg/Xorg (present_ register_ complete_ notify+ 0x809) [0x55d66e87e069] gdm3/gdm- x-session[ 1949]: (EE) 10: /usr/lib/xorg/Xorg (present_ register_ complete_ notify+ 0x845) [0x55d66e87e105] gdm3/gdm- x-session[ 1949]: (EE) 11: /usr/lib/xorg/Xorg (TimerSet+0x180) [0x55d66e8fabd0] gdm3/gdm- x-session[ 1949]: (EE) 12: /usr/lib/xorg/Xorg (TimerSet+0x1e8) [0x55d66e8fac88] gdm3/gdm- x-session[ 1949]: (EE) 13: /usr/lib/xorg/Xorg (WaitForSomethi ng+0x235) [0x55d66e8fad25] gdm3/gdm- x-session[ 1949]: (EE) 14: /usr/lib/xorg/Xorg (SendErrorToCli ent+0x117) [0x55d66e79fcf7] gdm3/gdm- x-session[ 1949]: (EE) 15: /usr/lib/xorg/Xorg (InitFonts+0x3b4) [0x55d66e7a3fc4] gdm3/gdm- x-session[ 1949]: (EE) 16: /lib/x86_ 64-linux- gnu/libc. so.6 (__libc_ start_main+ 0xf3) [0x7f5f95ae70b3] gdm3/gdm- x-session[ 1949]: (EE) 17: /usr/lib/xorg/Xorg (_start+0x2e) [0x55d66e78da2e] gdm3/gdm- x-session[ 1949]: (EE) gdm3/gdm- x-session[ 1949]: (EE) gdm3/gdm- x-session[ 1949]: Fatal server error: gdm3/gdm- x-session[ 1949]: (EE) Caught signal 6 (Aborted). Server aborting
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
Mar 12 12:43:12 /usr/lib/
The detail log is in lp:1917692.