This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1893024 Title: failing ftrace self tests from 5.7+ onwards Status in Linux: Confirmed Status in ubuntu-kernel-tests: New Status in linux package in Ubuntu: Confirmed Status in linux source package in Focal: Fix Committed Status in linux source package in Groovy: Confirmed Bug description: Ftrace regression tests in tools/testing/selftests/ftrace are picking up regressions in 5.7+ - not sure if these are kernel regressions or bugs in ftrace selftests. I'm seeing the following ftrace test regresions: 5.9-rc2 test failures with ARM64 in a 4GM VM + 8 CPUs Test 12, "Generic dynamic event - selective clear (compatibility)" Test 39, "Kprobe event with comm arguments" Test 40, "Kprobe event string type argument" Test 41, "Kprobe event symbol argument" Test 43, "Kprobe dynamic event with arguments" Test 44, "Kprobes event arguments with types" Test 45, "Kprobe event user-memory access" Test 47, "Kprobe dynamic event with function tracer" Test 48, "Kprobe dynamic event - probing module" Test 51, "Kretprobe dynamic event with arguments" 5.8.3, 5.7.17 test failures: Test 45, "Kprobe event user-memory access" Test 48, "Kprobe dynamic event - probing module" Test 51, "Kretprobe dynamic event with arguments" These tests were working fine when I tested with 5.4.60, 5.5.19, 5.6.19, so these are definite regressions Attached is a spreadsheet of the full set of test results To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1893024/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
