20.10: Частые сбои (вкладки браузера и gnome-shell), похоже, связанные с памятью

Я сталкиваюсь с довольно частыми сбоями процессов на Ubuntu 20.10, некоторые воспроизводимые, а некоторые случайные. Это продолжается уже по крайней мере два месяца.

Наиболее заметные сбои происходят в веб-браузерах, как Chromium, так и Firefox. В основном они происходят на довольно тяжелых страницах: эта страница NYTimes (она загружает страницу и отображает некоторые элементы страницы, после чего происходит сбой при начале рисования карты), но также могут происходить более случайные сбои на других страницах (например, в блокнотах Jupyter). Падает только вкладка ("Oh Snap!" на Chromium), сам процесс браузера в порядке. Chromium обычно падает с SIGTRAP, хотя я также видел SIGILL и код ошибки 64000. Firefox segfaults.

Кроме того, gnome-shell также падает довольно часто (раз в час или около того), случайным образом, но вызывается каким-то взаимодействием (например, открытием Application picker). Мой экран зависает на несколько секунд, экран становится фиолетовым, а затем все окна перерисовываются (я не выхожу из системы). Падения gnome-shell не совпадают с падениями вкладок браузера. Я не заметил, чтобы какие-либо другие процессы часто завершались, но я не использую много других приложений, поэтому проблема может не ограничиваться браузерами и gnome-shell.

Глядя на журналы, проблемы похоже связаны с памятью. Журналы непоследовательны (разные процессы, иногда без дополнительной диагностики), но вот эти выделяются:

Mar  3 07:39:29 victor kernel: [  138.399624] traps: chrome[12805] trap int3 ip:561d0936f29d sp:7ffc4861f280 error:0 in chrome[561d0917e000+754a000]
Mar  3 07:39:29 victor chromium_chromium.desktop[12805]: [12805:1:0303/073929.862778:FATAL:page_allocator_internals_posix.h(232)] Check failed: . : Cannot allocate memory (12)

Mar  2 07:33:31 victor kernel: [  228.984618] traps: chrome[3937] trap invalid opcode ip:55e3689bfb73 sp:7ffe3bd00350 error:0 in chrome[55e36626c000+7ccd000]
Mar  2 07:33:31 victor systemd[1]: Started Process Core Dump (PID 4003/UID 0).
Mar  2 07:33:38 victor systemd-coredump[4004]: Process 3937 (chrome) of user 1000 dumped core.#012#012Stack trace of thread 1:#012#0  0x000055e3689bfb73 n/a (chrome + 0x4479b73)#012#1  0x000055e3689bf73f n/a (chrome + 0x447973f)#012#2  0x000055e368afe5c8 n/a (chrome + 0x45b85c8)#012#3  0x000055e36cacf9c5 n/a (chrome + 0x85899c5)#012#4  0x000055e36caba7b3 n/a (chrome + 0x85747b3)#012#5  0x000055e36be46f44 n/a (chrome + 0x7900f44)#012#6  0x000055e36c2996c1 n/a (chrome + 0x7d536c1)#012#7  0x000055e36be4803d n/a (chrome + 0x790203d)#012#8  0x000055e36c9b3444 n/a (chrome + 0x846d444)#012#9  0x000055e36c9b5804 n/a (chrome + 0x846f804)#012#10 0x000055e369b54e03 n/a (chrome + 0x560ee03)#012#11 0x000055e369b58152 n/a (chrome + 0x5612152)#012#12 0x000055e369b575ce n/a (chrome + 0x56115ce)#012#13 0x000055e36c9b0ad0 n/a (chrome + 0x846aad0)#012#14 0x000055e36c08b8ca n/a (chrome + 0x7b458ca)#012#15 0x000055e36c1d916d n/a (chrome + 0x7c9316d)#012#16 0x000055e36c8f86c6 n/a (chrome + 0x83b26c6)#012#17 0x000055e36c748a13 n/a (chrome + 0x8202a13)#012#18 0x000055e36c7456df n/a (chrome + 0x81ff6df)#012#19 0x000055e36c745eff n/a (chrome + 0x81ffeff)#012#20 0x000055e368a3553f n/a (chrome + 0x44ef53f)#012#21 0x000055e368a454a1 n/a (chrome + 0x44ff4a1)#012#22 0x000055e368a57eb9 n/a (chrome + 0x4511eb9)#012#23 0x000055e368e789e8 n/a (chrome + 0x49329e8)#012#24 0x000055e368e8b629 n/a (chrome + 0x4945629)#012#25 0x000055e368e39dc8 n/a (chrome + 0x48f3dc8)#012#26 0x000055e368e8c1fc n/a (chrome + 0x49461fc)#012#27 0x000055e368e60861 n/a (chrome + 0x491a861)#012#28 0x000055e36de38b19 n/a (chrome + 0x98f2b19)#012#29 0x000055e368dcda88 n/a (chrome + 0x4887a88)#012#30 0x000055e368dcbdaa n/a (chrome + 0x4885daa)#012#31 0x000055e3665aa4c4 ChromeMain (chrome + 0x20644c4)#012#32 0x00007f730528ecb2 __libc_start_main (libc.so.6 + 0x28cb2)#012#33 0x000055e36626c46a _start (chrome + 0x1d2646a)#012#012Stack trace of thread 5:#012#0  0x00007f7306a6fc06 futex_wait_cancelable (libpthread.so.0 + 0xfc06)#012#1  0x000055e368ec834d n/a (chrome + 0x498234d)#012#2  0x000055e368ec8cc6 n/a (chrome + 0x4982cc6)#012#3  0x000055e368ec893e n/a (chrome + 0x498293e)#012#4  0x000055e368e39e37 n/a (chrome + 0x48f3e37)#012#5  0x000055e368e8c1fc n/a (chrome + 0x49461fc)#012#6  0x000055e368e60861 n/a (chrome + 0x491a861)#012#7  0x000055e368ea5669 n/a (chrome + 0x495f669)#012#8  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#9  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#10 0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 2:#012#0  0x00007f730537f56e epoll_wait (libc.so.6 + 0x11956e)#012#1  0x000055e368ff7b0b n/a (chrome + 0x4ab1b0b)#012#2  0x000055e368ff54eb n/a (chrome + 0x4aaf4eb)#012#3  0x000055e368ed92f3 n/a (chrome + 0x49932f3)#012#4  0x000055e368e8c1fc n/a (chrome + 0x49461fc)#012#5  0x000055e368e60861 n/a (chrome + 0x491a861)#012#6  0x000055e368e9e56d n/a (chrome + 0x495856d)#012#7  0x000055e368ea5669 n/a (chrome + 0x495f669)#012#8  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#9  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#10 0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 3:#012#0  0x00007f7306a7007f futex_abstimed_wait_cancelable (libpthread.so.0 + 0x1007f)#012#1  0x000055e368ec84e8 n/a (chrome + 0x49824e8)#012#2  0x000055e368ec8b73 n/a (chrome + 0x4982b73)#012#3  0x000055e368e9f66e n/a (chrome + 0x495966e)#012#4  0x000055e368e9f26d n/a (chrome + 0x495926d)#012#5  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#6  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#7  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 4:#012#0  0x00007f730537f56e epoll_wait (libc.so.6 + 0x11956e)#012#1  0x000055e368ff7b0b n/a (chrome + 0x4ab1b0b)#012#2  0x000055e368ff54eb n/a (chrome + 0x4aaf4eb)#012#3  0x000055e368ed92f3 n/a (chrome + 0x49932f3)#012#4  0x000055e368e8c1fc n/a (chrome + 0x49461fc)#012#5  0x000055e368e60861 n/a (chrome + 0x491a861)#012#6  0x000055e368ea5669 n/a (chrome + 0x495f669)#012#7  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#8  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#9  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 12:#012#0  0x00007f7306a7007f futex_abstimed_wait_cancelable (libpthread.so.0 + 0x1007f)#012#1  0x000055e368ec84e8 n/a (chrome + 0x49824e8)#012#2  0x000055e368ec8b73 n/a (chrome + 0x4982b73)#012#3  0x000055e368e9f66e n/a (chrome + 0x495966e)#012#4  0x000055e368e9f26d n/a (chrome + 0x495926d)#012#5  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#6  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#7  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 10:#012#0  0x00007f7306a6fc06 futex_wait_cancelable (libpthread.so.0 + 0xfc06)#012#1  0x000055e368ec834d n/a (chrome + 0x498234d)#012#2  0x000055e36de2a39d n/a (chrome + 0x98e439d)#012#3  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#4  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#5  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 9:#012#0  0x00007f7306a6fc06 futex_wait_cancelable (libpthread.so.0 + 0xfc06)#012#1  0x000055e368ec834d n/a (chrome + 0x498234d)#012#2  0x000055e36de2a39d n/a (chrome + 0x98e439d)#012#3  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#4  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#5  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 7:#012#0  0x00007f7306a7007f futex_abstimed_wait_cancelable (libpthread.so.0 + 0x1007f)#012#1  0x000055e368ec84e8 n/a (chrome + 0x49824e8)#012#2  0x000055e368ec8b73 n/a (chrome + 0x4982b73)#012#3  0x000055e368e39e0f n/a (chrome + 0x48f3e0f)#012#4  0x000055e368e8c1fc n/a (chrome + 0x49461fc)#012#5  0x000055e368e60861 n/a (chrome + 0x491a861)#012#6  0x000055e368a063b4 n/a (chrome + 0x44c03b4)#012#7  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#8  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#9  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 14:#012#0  0x00007f7306a7007f futex_abstimed_wait_cancelable (libpthread.so.0 + 0x1007f)#012#1  0x000055e368ec84e8 n/a (chrome + 0x49824e8)#012#2  0x000055e368ec8b73 n/a (chrome + 0x4982b73)#012#3  0x000055e368e9f66e n/a (chrome + 0x495966e)#012#4  0x000055e368e9f26d n/a (chrome + 0x495926d)#012#5  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#6  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#7  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 6:#012#0  0x00007f7306a7007f futex_abstimed_wait_cancelable (libpthread.so.0 + 0x1007f)#012#1  0x000055e368ec84e8 n/a (chrome + 0x49824e8)#012#2  0x000055e368ec8b73 n/a (chrome + 0x4982b73)#012#3  0x000055e368e9f66e n/a (chrome + 0x495966e)#012#4  0x000055e368e9f26d n/a (chrome + 0x495926d)#012#5  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#6  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#7  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 8:#012#0  0x00007f7306a6fc06 futex_wait_cancelable (libpthread.so.0 + 0xfc06)#012#1  0x000055e368ec834d n/a (chrome + 0x498234d)#012#2  0x000055e368ec8cc6 n/a (chrome + 0x4982cc6)#012#3  0x000055e368ec893e n/a (chrome + 0x498293e)#012#4  0x000055e368e9f690 n/a (chrome + 0x4959690)#012#5  0x000055e368e9f29d n/a (chrome + 0x495929d)#012#6  0x000055e368ecc4e4 n/a (chrome + 0x49864e4)#012#7  0x00007f7306a69590 start_thread (libpthread.so.0 + 0x9590)#012#8  0x00007f730537f223 __clone (libc.so.6 + 0x119223)#012#012Stack trace of thread 13:#012#0  0x00007f7306a6fc06 futex_wait_cancelable (libpthread.so.0 + 0xfc06)#012#1  0x000055e368ec834d n/a (chrome + 0x498234d)#012#2  0x000055e368ec8cc6 n/a (chrome + 0x4982cc6)#012#3  0x000055e368ec893e n/a (chrome + 0x498293e)#012#4  0x000055e368e39e37 n/a (chrome + 0x48f3e37)#012#5  0x000055e368e8c1fc n/a (chrome + 0x49461fc)#012#6  0x000055e368e60861 n/a (chrome + 0x491a861)#012#7  0x000055e368ea5669 n/a (chrome + 0x495f669)#012#8  0x000055e368ecc4e4 n/a 
Mar  2 07:33:38 victor systemd[1]: systemd-coredump@3-4003-0.service: Succeeded.

Mar  3 08:33:29 victor gnome-shell[17417]: Hit MOZ_CRASH([unhandlable oom] ExecutableAllocator::reprotectPool) at /build/firefox-1cAqEX/firefox-86.0+build3/js/src/vm/JSContext.cpp:1185
Mar  3 08:33:29 victor kernel: [ 3377.738711] DOM Worker[21161]: segfault at 0 ip 00007fbf63159aa9 sp 00007fbf399560e0 error 6 in libxul.so[7fbf5f73f000+5148000]
Mar  3 08:33:29 victor kernel: [ 3377.738719] Code: 00 48 8d 35 99 14 bb 02 49 89 e6 4c 89 f7 48 89 da 31 c0 e8 e9 61 6f fc 4c 89 f7 e8 1a 00 00 00 48 8b 05 42 29 fb 03 4c 89 30 <c7> 04 25 00 00 00 00 a3 04 00 00 e8 4f eb 5e fc 53 48 89 fa 48 8b

Mar  3 08:10:41 victor gnome-shell[13040]: [unhandlable oom] Failed to mmap, likely no more mappings available /build/firefox-1cAqEX/firefox-86.0+build3/memory/build/mozjemalloc.cpp : 1306
Mar  3 08:10:41 victor gnome-shell[5778]: XXX: resource creation failed
Mar  3 08:10:41 victor gnome-shell[5778]: message repeated 5 times: [ XXX: resource creation failed]
Mar  3 08:10:41 victor gnome-shell[5778]: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed
Mar  3 08:10:41 victor gnome-shell[5778]: XXX: resource creation failed
Mar  3 08:10:41 victor gnome-shell[5778]: message repeated 3 times: [ XXX: resource creation failed]
Mar  3 08:10:41 victor gnome-shell[5778]: free(): invalid pointer
Mar  3 08:10:41 victor gnome-shell[5778]: GNOME Shell crashed with signal 6
Mar  3 08:10:41 victor gnome-shell[5778]: == Stack trace for context 0x560fa7763240 ==
Mar  3 08:10:41 victor gnome-shell[5778]: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed
Mar  3 08:10:41 victor systemd[2496]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=6/ABRT
Mar  3 08:10:41 victor systemd[2496]: org.gnome.Shell@x11.service: Failed with result 'core-dump'.
Mar  3 08:10:41 victor systemd[2496]: org.gnome.Shell@x11.service: Scheduled restart job, restart counter is at 2.
Mar  3 08:10:41 victor systemd[2496]: Stopped GNOME Shell on X11.
Mar  3 08:10:41 victor systemd[2496]: Starting GNOME Shell on X11...

Mar  2 10:47:32 victor gnome-shell[88500]: XXX: resource creation failed
Mar  2 10:47:32 victor gnome-shell[88500]: message repeated 9 times: [ XXX: resource creation failed]
Mar  2 10:47:32 victor gnome-shell[88500]: JS ERROR: out of memory
Mar  2 10:47:32 victor gnome-shell[88500]: message repeated 65 times: [ JS ERROR: out of memory]
Mar  2 10:47:32 victor gnome-shell[88500]: XXX: resource creation failed
Mar  2 10:47:32 victor gnome-shell[88500]: message repeated 2 times: [ XXX: resource creation failed]
Mar  2 10:47:32 victor gnome-shell[88500]: JS ERROR: out of memory
Mar  2 10:47:32 victor gnome-shell[88500]: message repeated 66 times: [ JS ERROR: out of memory]
Mar  2 10:47:32 victor gnome-shell[88500]: XXX: resource creation failed
Mar  2 10:47:32 victor gnome-shell[88500]: message repeated 2 times: [ XXX: resource creation failed]
Mar  2 10:47:32 victor gnome-shell[88500]: JS ERROR: out of memory
Mar  2 10:47:32 victor gnome-shell[88500]: message repeated 51 times: [ JS ERROR: out of memory]
Mar  2 10:47:32 victor gnome-shell[88500]: Can't update stage views actor dashtodockBox is on because it needs an allocation.
Mar  2 10:47:32 victor gnome-shell[88500]: Can't update stage views actor Gjs_ubuntu-dock_ubuntu_com_dash_DashToDock_MyDash is on because it needs an allocation.
Mar  2 10:47:32 victor gnome-shell[88500]: Can't update stage views actor dash is on because it needs an allocation.
Mar  2 10:47:32 victor gnome-shell[88500]: Can't update stage views actor dashtodockDashScrollview is on because it needs an allocation.
Mar  2 10:47:32 victor gnome-shell[88500]: Can't update stage views actor StBoxLayout is on because it needs an allocation.
Mar  2 10:47:32 victor gnome-shell[88500]: Can't update stage views actor Gjs_ubuntu-dock_ubuntu_com_dash_DashToDock_MyDashItemContainer is on because it needs an allocation.
Mar  2 10:47:32 victor gnome-shell[88500]: GNOME Shell crashed with signal 11
Mar  2 10:47:32 victor gnome-shell[88500]: == Stack trace for context 0x55ab2d744220 ==
Mar  2 10:47:32 victor gnome-shell[88500]: #0   55ab32a9bfe0 i   resource:///org/gnome/shell/ui/windowManager.js:1625 (3c33905d1100 @ 221)
Mar  2 10:47:32 victor gnome-shell[88500]: #1   55ab32a9bf48 i   resource:///org/gnome/shell/ui/windowManager.js:1590 (3c33905d11f0 @ 22)
Mar  2 10:47:32 victor gnome-shell[88500]: #2   55ab32a9beb8 i   resource:///org/gnome/shell/ui/environment.js:82 (3b66bd84bf0 @ 39)
Mar  2 10:47:32 victor gnome-shell[88500]: #3   55ab32a9be28 i   resource:///org/gnome/shell/ui/environment.js:167 (3b66bd848d0 @ 14)
Mar  2 10:47:32 victor systemd[1]: Starting Process error reports when automatic reporting is enabled...
Mar  2 10:47:39 victor systemd[1]: systemd-timedated.service: Succeeded.
Mar  2 10:47:41 victor systemd[2524]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=11/SEGV
Mar  2 10:47:41 victor systemd[2524]: org.gnome.Shell@x11.service: Failed with result 'core-dump'.
Mar  2 10:47:41 victor systemd[2524]: org.gnome.Shell@x11.service: Scheduled restart job, restart counter is at 1.
Mar  2 10:47:41 victor systemd[2524]: Stopped GNOME Shell on X11.
Mar  2 10:47:41 victor systemd[2524]: Starting GNOME Shell on X11...

Mar  2 14:37:16 victor gnome-shell[117354]: XXX: resource creation failed
Mar  2 14:37:16 victor gnome-shell[117354]: Failed to allocate texture: Out of memory
Mar  2 14:37:16 victor gnome-shell[117354]: XXX: resource creation failed
Mar  2 14:37:16 victor gnome-shell[117354]: XXX: resource creation failed
Mar  2 14:37:16 victor gnome-shell[117354]: Failed to allocate texture: Out of memory
Mar  2 14:37:16 victor gnome-shell[117354]: XXX: resource creation failed
Mar  2 14:37:16 victor gnome-shell[117354]: XXX: resource creation failed
Mar  2 14:37:16 victor gnome-shell[117354]: Failed to allocate texture: Out of memory
Mar  2 14:37:16 victor gnome-shell[117354]: Failed to allocate texture: Out of memory
Mar  2 14:37:16 victor gnome-shell[117354]: XXX: resource creation failed
Mar  2 14:37:16 victor gnome-shell[117354]: message repeated 5 times: [ XXX: resource creation failed]
Mar  2 14:37:16 victor gnome-shell[117354]: free(): invalid pointer
Mar  2 14:37:16 victor gnome-shell[117354]: GNOME Shell crashed with signal 6
Mar  2 14:37:16 victor gnome-shell[117354]: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed
Mar  2 14:37:16 victor gnome-shell[117354]: == Stack trace for context 0x55a5e5dcc2a0 ==
Mar  2 14:37:27 victor systemd[2524]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=6/ABRT
Mar  2 14:37:27 victor systemd[2524]: org.gnome.Shell@x11.service: Failed with result 'core-dump'.
Mar  2 14:37:27 victor systemd[2524]: org.gnome.Shell@x11.service: Scheduled restart job, restart counter is at 2.
Mar  2 14:37:27 victor systemd[2524]: Stopped GNOME Shell on X11.
Mar  2 14:37:27 victor systemd[2524]: Starting GNOME Shell on X11...

Mar  2 15:09:45 victor dbus-daemon[2535]: [session uid=1000 pid=2535] Activating service name='org.gnome.ControlCenter.SearchProvider' requested by ':1.577' (uid=1000 pid=133914 comm="/usr/bin/gnome-shell " label="unconfined")
Mar  2 15:09:45 victor dbus-daemon[2535]: [session uid=1000 pid=2535] Activating service name='org.gnome.Calculator.SearchProvider' requested by ':1.577' (uid=1000 pid=133914 comm="/usr/bin/gnome-shell " label="unconfined")
Mar  2 15:09:45 victor dbus-daemon[2535]: [session uid=1000 pid=2535] Activating service name='org.gnome.Characters.BackgroundService' requested by ':1.577' (uid=1000 pid=133914 comm="/usr/bin/gnome-shell " label="unconfined")
Mar  2 15:09:45 victor dbus-daemon[2535]: [session uid=1000 pid=2535] Successfully activated service 'org.gnome.ControlCenter.SearchProvider'
Mar  2 15:09:45 victor dbus-daemon[2535]: [session uid=1000 pid=2535] Successfully activated service 'org.gnome.Characters.BackgroundService'
Mar  2 15:09:46 victor dbus-daemon[2535]: [session uid=1000 pid=2535] Successfully activated service 'org.gnome.Calculator.SearchProvider'
Mar  2 15:09:46 victor gnome-shell[133914]: JS ERROR: out of memory
Mar  2 15:09:46 victor gnome-shell[133914]: XXX: resource creation failed
Mar  2 15:09:46 victor gnome-shell[133914]: message repeated 8 times: [ XXX: resource creation failed]
Mar  2 15:09:46 victor gnome-shell[133914]: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed
Mar  2 15:09:46 victor gnome-shell[133914]: XXX: resource creation failed
Mar  2 15:09:46 victor gnome-shell[133914]: message repeated 3 times: [ XXX: resource creation failed]
Mar  2 15:09:46 victor gnome-shell[133914]: free(): invalid pointer
Mar  2 15:09:46 victor gnome-shell[133914]: GNOME Shell crashed with signal 6
Mar  2 15:09:46 victor gnome-shell[133914]: g_atomic_ref_count_dec: assertion 'g_atomic_int_get (arc) > 0' failed
Mar  2 15:09:46 victor gnome-shell[133914]: == Stack trace for context 0x55d76c85e270 ==
Mar  2 15:09:46 victor systemd[2524]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=6/ABRT
Mar  2 15:09:46 victor systemd[2524]: org.gnome.Shell@x11.service: Failed with result 'core-dump'.
Mar  2 15:09:46 victor systemd[2524]: org.gnome.Shell@x11.service: Scheduled restart job, restart counter is at 3.
Mar  2 15:09:47 victor systemd[2524]: Stopped GNOME Shell on X11.
Mar  2 15:09:47 victor systemd[2524]: Starting GNOME Shell on X11...

Похожие отчеты о сбоях Firefox: 1, 2, 3.

Редактировать: больше аварий с другой информацией. Авария в Chromium ссылается на графический драйвер Intel. Первый gnome-shell сбой произошел при нажатии на часы, чтобы открыть всплывающее окно уведомления/календаря, о чем говорится в трассировке стека. Во втором случае сигнал отличается от остальных (11 вместо 6).

Mar  3 15:11:51 victor kernel: [20762.954881] chrome[9987]: segfault at 20 ip 00007efc55a4ade4 sp 00007ffdcd89fc70 error 6 in i965_dri.so[7efc553fd000+b8d000]
Mar  3 15:11:51 victor kernel: [20762.954890] Code: 84 00 00 00 00 00 84 c9 74 7c f3 0f 10 0a f3 0f 10 42 04 0f 2e c8 0f 86 da 00 00 00 66 0f 7e c9 31 f6 0f 1f 40 00 48 83 c2 18 <89> 30 89 48 
04 48 83 c0 08 48 39 d7 74 6e 80 bb b3 97 00 00 00 0f

Mar  3 15:15:48 victor gnome-shell[19012]: XXX: resource creation failed
Mar  3 15:15:48 victor gnome-shell[19012]: message repeated 2 times: [ XXX: resource creation failed]
Mar  3 15:15:48 victor gnome-shell[19012]: JS ERROR: Error: Must pass an exception and optionally a message to logError()#012_emit@resource:///org/gnome/gjs/modules/core/_signals.js:142:25#012close@resource:///org/gnome/shell/ui/popupMenu.js:954:14#012toggle@resource:///org/gnome/shell/ui/popupMenu.js:803:18#012vfunc_event@resource:///org/gnome/shell/ui/panelMenu.js:137:23
Mar  3 15:15:48 victor gnome-shell[19012]: JS ERROR: out of memory
Mar  3 15:15:48 victor gnome-shell[19012]: JS ERROR: out of memory
Mar  3 15:15:48 victor gnome-shell[19012]: **
Mar  3 15:15:48 victor gnome-shell[19012]: Clutter:ERROR:../clutter/clutter/clutter-actor.c:1372:clutter_actor_set_mapped: assertion failed: (CLUTTER_ACTOR_IS_MAPPED (self))
Mar  3 15:15:48 victor gnome-shell[19012]: Bail out! Clutter:ERROR:../clutter/clutter/clutter-actor.c:1372:clutter_actor_set_mapped: assertion failed: (CLUTTER_ACTOR_IS_MAPPED (self))
Mar  3 15:15:48 victor gnome-shell[19012]: GNOME Shell crashed with signal 6
Mar  3 15:15:48 victor gnome-shell[19012]: == Stack trace for context 0x5589d4a8b270 ==
Mar  3 15:15:48 victor gnome-shell[19012]: #0   5589d75ed058 i   resource:///org/gnome/shell/ui/calendar.js:881 (328308a437e0 @ 45)
Mar  3 15:15:48 victor gnome-shell[19012]: #1   5589d75ecfa8 i   resource:///org/gnome/shell/ui/boxpointer.js:82 (3c1efecef970 @ 192)
Mar  3 15:15:48 victor gnome-shell[19012]: #2   5589d75ecee8 i   resource:///org/gnome/shell/ui/popupMenu.js:933 (3c1efecf9ba0 @ 207)
Mar  3 15:15:48 victor gnome-shell[19012]: #3   7fff6dd2cf70 b   resource:///org/gnome/shell/ui/popupMenu.js:805 (3c1efecf9e20 @ 91)
Mar  3 15:15:48 victor gnome-shell[19012]: #4   7fff6dd2d020 b   resource:///org/gnome/shell/ui/panelMenu.js:137 (328308a79ce0 @ 126)
Mar  3 15:15:59 victor systemd[2496]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=6/ABRT
Mar  3 15:15:59 victor systemd[2496]: org.gnome.Shell@x11.service: Failed with result 'core-dump'.
Mar  3 15:15:59 victor systemd[2496]: org.gnome.Shell@x11.service: Scheduled restart job, restart counter is at 3.
Mar  3 15:15:59 victor systemd[2496]: Stopped GNOME Shell on X11.
Mar  3 15:15:59 victor systemd[2496]: Starting GNOME Shell on X11...

Mar  4 11:03:33 victor gnome-shell[3265]: JS ERROR: out of memory
Mar  4 11:03:33 victor gnome-shell[3265]: message repeated 15 times: [ JS ERROR: out of memory]
Mar  4 11:03:33 victor gnome-shell[3265]: XXX: resource creation failed
Mar  4 11:03:33 victor gnome-shell[3265]: message repeated 3 times: [ XXX: resource creation failed]
Mar  4 11:03:33 victor gnome-shell[3265]: shmat failed
Mar  4 11:03:33 victor gnome-shell[3265]: shmget failed
Mar  4 11:03:33 victor gnome-shell[3265]: XXX: resource creation failed
Mar  4 11:03:33 victor gnome-shell[3265]: message repeated 7 times: [ XXX: resource creation failed]
Mar  4 11:03:33 victor gnome-shell[3265]: GNOME Shell crashed with signal 11
Mar  4 11:03:33 victor gnome-shell[3265]: == Stack trace for context 0x55e544c5f230 ==
Mar  4 11:03:34 victor systemd[2745]: org.gnome.Shell@x11.service: Main process exited, code=dumped, status=11/SEGV
Mar  4 11:03:34 victor slack.desktop[10765]: [03/04/21, 11:03:34:256] info: [FOCUS-EVENT] Client window focused
Mar  4 11:03:34 victor systemd[2745]: org.gnome.Shell@x11.service: Failed with result 'core-dump'.
Mar  4 11:03:34 victor systemd[2745]: org.gnome.Shell@x11.service: Scheduled restart job, restart counter is at 1.
Mar  4 11:03:34 victor systemd[2745]: Stopped GNOME Shell on X11.
Mar  4 11:03:34 victor systemd[2745]: Starting GNOME Shell on X11...

Любопытно, что хотя в этих журналах часто упоминаются проблемы "нехватки памяти", ничто не указывает на то, что в системе действительно не хватает памяти: мониторинг свободной памяти показывает, что ее достаточно, своп не тронут, ни один процесс не убит oomkiller, и система никак не становится вялой (просто чистый крах).

Что я уже сделал/пробовал:

• Полный запуск memtest86 не выдает никаких ошибок.
• Проверки файловой системы и SMART выглядят нормально.
• Сбои остаются при использовании других оконных менеджеров (Wayland, xfce).

Я немного озадачен этими ошибками, поскольку память, похоже, является виновником, но неясно, почему. Буду благодарен за любую помощь. Всегда рад добавить больше логов или попробовать что-то новое.

Для полноты картины, grep на memory в логах запуска:

Mar  3 07:37:19 victor kernel: [    0.011159] check: Scanning 1 areas for low memory corruption
Mar  3 07:37:19 victor kernel: [    0.012174] Early memory node ranges
Mar  3 07:37:19 victor kernel: [    0.036556] Reserving Intel graphics memory at [mem 0x7d800000-0x7f7fffff]
Mar  3 07:37:19 victor kernel: [    0.036921] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
Mar  3 07:37:19 victor kernel: [    0.036923] PM: hibernation: Registered nosave memory: [mem 0x00058000-0x00058fff]
Mar  3 07:37:19 victor kernel: [    0.036925] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff]
Mar  3 07:37:19 victor kernel: [    0.036927] PM: hibernation: Registered nosave memory: [mem 0x67b0d000-0x67b0dfff]
Mar  3 07:37:19 victor kernel: [    0.036929] PM: hibernation: Registered nosave memory: [mem 0x67b1d000-0x67b1dfff]
Mar  3 07:37:19 victor kernel: [    0.036930] PM: hibernation: Registered nosave memory: [mem 0x67b1e000-0x67b1efff]
Mar  3 07:37:19 victor kernel: [    0.036931] PM: hibernation: Registered nosave memory: [mem 0x67b3b000-0x67b3bfff]
Mar  3 07:37:19 victor kernel: [    0.036933] PM: hibernation: Registered nosave memory: [mem 0x69e9a000-0x69e9afff]
Mar  3 07:37:19 victor kernel: [    0.036934] PM: hibernation: Registered nosave memory: [mem 0x69e9b000-0x69e9bfff]
Mar  3 07:37:19 victor kernel: [    0.036936] PM: hibernation: Registered nosave memory: [mem 0x765c3000-0x76648fff]
Mar  3 07:37:19 victor kernel: [    0.036938] PM: hibernation: Registered nosave memory: [mem 0x7a157000-0x7a4e1fff]
Mar  3 07:37:19 victor kernel: [    0.036939] PM: hibernation: Registered nosave memory: [mem 0x7a4e2000-0x7a523fff]
Mar  3 07:37:19 victor kernel: [    0.036939] PM: hibernation: Registered nosave memory: [mem 0x7a524000-0x7ae59fff]
Mar  3 07:37:19 victor kernel: [    0.036940] PM: hibernation: Registered nosave memory: [mem 0x7ae5a000-0x7b5fefff]
Mar  3 07:37:19 victor kernel: [    0.036942] PM: hibernation: Registered nosave memory: [mem 0x7b600000-0x7f7fffff]
Mar  3 07:37:19 victor kernel: [    0.036943] PM: hibernation: Registered nosave memory: [mem 0x7f800000-0xefffffff]
Mar  3 07:37:19 victor kernel: [    0.036944] PM: hibernation: Registered nosave memory: [mem 0xf0000000-0xf7ffffff]
Mar  3 07:37:19 victor kernel: [    0.036945] PM: hibernation: Registered nosave memory: [mem 0xf8000000-0xfdffffff]
Mar  3 07:37:19 victor kernel: [    0.036945] PM: hibernation: Registered nosave memory: [mem 0xfe000000-0xfe010fff]
Mar  3 07:37:19 victor kernel: [    0.036946] PM: hibernation: Registered nosave memory: [mem 0xfe011000-0xfebfffff]
Mar  3 07:37:19 victor kernel: [    0.036947] PM: hibernation: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
Mar  3 07:37:19 victor kernel: [    0.036948] PM: hibernation: Registered nosave memory: [mem 0xfec01000-0xfedfffff]
Mar  3 07:37:19 victor kernel: [    0.036949] PM: hibernation: Registered nosave memory: [mem 0xfee00000-0xfee00fff]
Mar  3 07:37:19 victor kernel: [    0.036949] PM: hibernation: Registered nosave memory: [mem 0xfee01000-0xfeffffff]
Mar  3 07:37:19 victor kernel: [    0.036950] PM: hibernation: Registered nosave memory: [mem 0xff000000-0xffffffff]
Mar  3 07:37:19 victor kernel: [    0.126064] Freeing SMP alternatives memory: 40K
Mar  3 07:37:19 victor kernel: [    0.595529] Freeing initrd memory: 55380K
Mar  3 07:37:19 victor kernel: [    0.615362] check: Scanning for low memory corruption every 60 seconds
Mar  3 07:37:19 victor kernel: [    0.927939] Freeing unused decrypted memory: 2040K
Mar  3 07:37:19 victor kernel: [    0.929149] Freeing unused kernel image (initmem) memory: 2644K
Mar  3 07:37:19 victor kernel: [    0.931423] Freeing unused kernel image (text/rodata gap) memory: 2044K
Mar  3 07:37:19 victor kernel: [    0.932485] Freeing unused kernel image (rodata/data gap) memory: 1440K
Mar  3 07:37:19 victor kernel: [    1.287118] i2c i2c-0: 2/2 memory slots populated (from DMI)

System info:

Ubuntu version: 20.10
Kernel: 5.8.0-44-generic x86_64
Gnome version: 3.38.3
gnome-shell version: 3.38.2-1ubuntu1~20.10.1
CPU: Dual Core Intel Core i7-7600U (-MT MCP-) 2.8 GHz 
RAM: 16 GB (shown as 15.5 GiB in Ubuntu settings)
Swap space: 2 GB
Graphics: Mesa Intel® HD Graphics 620 (KBL GT2)
Graphics driver: i915
Window system: X11