[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x: Linux kernel 5.15 regression

Change by Miro Hrončok : -- nosy: +hroncok ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x: Linux kernel 5.15 regression

Change by STINNER Victor : -- title: test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x -> test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x: Linux kernel 5.15 regression ___ Python tracker

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x

STINNER Victor added the comment: The regression seems to come from this recent Linux kernel change: https://github.com/torvalds/linux/commit/406dd42bd1ba0c01babf9cde169bb319e52f6147 If fixing the kernel takes too long, we can temporarily skip the test on Linux kernel 5.15 (or newer). --

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x

STINNER Victor added the comment: It may be a Linux kernel 5.15 regression. I'm now trying to report this issue to the Linux kernel. -- ___ Python tracker ___ ___

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x

STINNER Victor added the comment: It seems like the kernel was just upgrade from 5.14 to 5.15.rc0: vstinner@python-builder-rawhide$ date lun. 06 sept. 2021 14:05:43 EDT vstinner@python-builder-rawhide$ grep kernel /var/log/dnf.log 2021-09-03T06:35:58-0400 DEBUG Installed: kernel-5.15.0-0.rc0.

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x

STINNER Victor added the comment: I rewrote the test in C, see attached setitimer.c. On Fedora 34: --- $ rpm -q glibc glibc-2.33-20.fc34.x86_64 $ uname -r 5.13.8-200.fc34.x86_64 $ gcc setitimer.c -o setitimer && ./setitimer setitimer(<0.5, 0.5>) SIGVTALRM SIGVTALRM SIGVTALRM SIGVTALRM setitim

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x

Change by STINNER Victor : -- nosy: +cstratak ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.py

[issue45119] test_signal.test_itimer_virtual() failed on AMD64 Fedora Rawhide 3.x

New submission from STINNER Victor : AMD64 Fedora Rawhide 3.x: https://buildbot.python.org/all/#/builders/285/builds/685 It is likely test_itimer_virtual() of test_signal which failed. On the buildbot worker: $ rpm -q glibc glibc-2.34.9000-5.fc36.x86_64 $ uname -r 5.15.0-0.rc0.20210902git4ac6