This still occurs with 19.04 (Disco Dingo) and kernel 5.0.0-13-generic, and does not seem to be Firefox specific. I've also had this crash when using some KDE apps. This issue seems to occurs at 2-3 times a day on frequent use, each time requiring a forced reboot to fix (because Ubuntu never reboots gracefully when Xorg is hanging in kernelspace).
[170138.010150] INFO: task Xorg:879 blocked for more than 120 seconds. [170138.011257] Not tainted 5.0.0-13-generic #14-Ubuntu [170138.012182] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [170138.013506] Xorg D 0 879 790 0x00400004 [170138.013508] Call Trace: [170138.013513] __schedule+0x2d0/0x840 [170138.013514] schedule+0x2c/0x70 [170138.013516] schedule_preempt_disabled+0xe/0x10 [170138.013517] __ww_mutex_lock.isra.11+0x3e0/0x750 [170138.013519] __ww_mutex_lock_slowpath+0x16/0x20 [170138.013520] ww_mutex_lock+0x34/0x50 [170138.013525] ttm_eu_reserve_buffers+0x1f9/0x2e0 [ttm] [170138.013528] qxl_release_reserve_list+0x67/0x150 [qxl] [170138.013530] ? qxl_bo_pin+0x11d/0x200 [qxl] [170138.013532] qxl_cursor_atomic_update+0x1b0/0x2e0 [qxl] [170138.013540] drm_atomic_helper_commit_planes+0xb9/0x220 [drm_kms_helper] [170138.013544] drm_atomic_helper_commit_tail+0x2b/0x70 [drm_kms_helper] [170138.013547] commit_tail+0x67/0x70 [drm_kms_helper] [170138.013555] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper] [170138.013570] drm_atomic_commit+0x4a/0x50 [drm] [170138.013574] drm_atomic_helper_update_plane+0xe9/0x100 [drm_kms_helper] [170138.013581] __setplane_atomic+0xd6/0x120 [drm] [170138.013588] drm_mode_cursor_universal+0x145/0x270 [drm] [170138.013596] drm_mode_cursor_common+0x18f/0x200 [drm] [170138.013603] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [170138.013609] drm_mode_cursor2_ioctl+0xe/0x10 [drm] [170138.013615] drm_ioctl_kernel+0xad/0xf0 [drm] [170138.013616] ? ___sys_recvmsg+0x16c/0x200 [170138.013622] drm_ioctl+0x233/0x410 [drm] [170138.013629] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [170138.013631] ? ep_scan_ready_list.constprop.23+0x1f0/0x200 [170138.013633] do_vfs_ioctl+0xa9/0x640 [170138.013634] ? __sys_recvmsg+0x88/0xa0 [170138.013635] ksys_ioctl+0x67/0x90 [170138.013637] __x64_sys_ioctl+0x1a/0x20 [170138.013638] do_syscall_64+0x5a/0x110 [170138.013639] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [170138.013640] RIP: 0033:0x7f3a80734417 [170138.013644] Code: Bad RIP value. [170138.013645] RSP: 002b:00007ffcae8e3488 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [170138.013646] RAX: ffffffffffffffda RBX: 000055aaa657c610 RCX: 00007f3a80734417 [170138.013647] RDX: 00007ffcae8e34c0 RSI: 00000000c02464bb RDI: 000000000000000e [170138.013647] RBP: 00007ffcae8e34c0 R08: 0000000000000040 R09: 0000000000000010 [170138.013647] R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb [170138.013648] R13: 000000000000000e R14: 0000000000000000 R15: 000055aaa657a450 ** Summary changed: - Xorg indefinitely hangs in kernelspace during scrolling a web page in Firefox + Xorg indefinitely hangs in kernelspace at least 2-3 times a day -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1813620 Title: Xorg indefinitely hangs in kernelspace at least 2-3 times a day To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813620/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
