https://bugzilla.kernel.org/show_bug.cgi?id=214621
--- Comment #4 from Erhard F. (erhard_f@mailbox.org) --- (In reply to Lang Yu from comment #3)
Could you please reproduce it on a ubuntu 20.04 system? I didn't reproduce it on ubuntu 20.04.
Not on this machine unfortunately. I need it 24/7 as a fileserver and audio server. Building vanilla or -rc kernels and running these on Gentoo is fine but installing another distro, getting configs equal and running Ubuntu instead for testing purposes is too much effort, sorry.
And could you please get outputs of following command before rebooting? Thanks!
$ cat /sys/kernel/debug/dma_buf/bufinfo
Current kernel is v5.14.14, built with clang 12.0.1 (-Os).
# cat /sys/kernel/debug/dma_buf/bufinfo
Dma-buf Objects: size flags mode count exp_name ino 03047424 00000002 00080007 00000003 drm 00415409 Shared fence: drm_sched gfx signalled Attached Devices: Total 0 devices attached
03047424 00000002 00080007 00000003 drm 00414559 Shared fence: drm_sched gfx signalled Attached Devices: Total 0 devices attached
00004096 00000002 00080007 00000003 drm 00414537 Attached Devices: Total 0 devices attached
00004096 00000002 00080007 00000003 drm 00415280 Shared fence: drm_sched gfx signalled Attached Devices: Total 0 devices attached
07864320 00000002 00080007 00000003 drm 00244896 Shared fence: drm_sched gfx signalled Attached Devices: Total 0 devices attached
07864320 00000002 00080007 00000003 drm 00242446 Shared fence: drm_sched gfx signalled Attached Devices: Total 0 devices attached
00065536 00000002 00080007 00000003 drm 00058778 Attached Devices: Total 0 devices attached
08355840 00000002 00080007 00000004 drm 00058661 Attached Devices: Total 0 devices attached
08355840 00000002 00080007 00000002 drm 00003715 Shared fence: drm_sched gfx signalled Attached Devices: Total 0 devices attached
Total 9 objects, 38608896 bytes