According to bug 1907523 which has been duplicated against this one, the
do_sys_openat2 change was made via stable to 5.4/Focal as well. Lowering
the importance since failing self-tests is nothing that affects users.
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: linux (Ubuntu Focal)
Status: New => In Progress
** Changed in: linux (Ubuntu Groovy)
Importance: High => Low
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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:
In Progress
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
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