https://bugzilla.kernel.org/show_bug.cgi?id=215445 --- Comment #7 from Bogdan (bogdan.pylypenko107@xxxxxxxxx) --- UBSAN <- Undefined Behaviour sanity checker > Compile-time instrumentation is used to detect various undefined behaviours > at runtime. > For more details, see: Documentation/dev-tools/ubsan.rst UBSAN is just a technology that help to detect various bugs, not a bug source. I resolve problem by kernel rebuild: - rebuild 5.15.12 with different kernel config - have no UBSAN warnings (big changes made - can not detect which kernel config parameter resolve problem); - update to 5.15.13 - have no UBSAN warnings, have single crash in amdgpu driver with closing X subsystem (sysrq helps to restart display manager); - update to 5.16.0 - have no UBSAN warnings, but have high latencies (12-15 ms) in [drm_atomic_helper_wait_for_flip_done] in high loaded mode (detected by latencytop program). -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
