** Changed in: oem-priority
Assignee: Andy Chi (andch) => jeremyszu (os369510)
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https://bugs.launchpad.net/bugs/1918855
Title:
Xorg xserver got signal 6 to abort
Status in OEM Priority Project:
In Progress
Status in Provider for Plainbox - Checkbox:
New
Status in mesa package in Ubuntu:
Fix Released
Status in mesa source package in Focal:
New
Status in mesa source package in Hirsute:
New
Bug description:
== SRU Justification ==
[Impact]
When the system is under memory pressure, the entire desktop session may
crash.
[Fix]
Commit f9d8d9acbb6a620684fb4dac4affe25816587d92 ("iris: Avoid abort() if
kernel can't allocate memory")
[Test]
Run memory stress and the session crashed in less than 5 minutes.
With the fix applied, run memory stress for 24 hours and the desktop session
is still alive.
[Where problems could occur]
Doing a reset might make the system even more sluggish when under memory
pressure.
== Original bug report ==
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
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