On Fri, Jul 06, 2018 at 07:51:18PM -0400, Jeff Backus wrote: > On Fri, Jul 6, 2018 at 6:32 PM, Jeff Backus <jeff.backus@xxxxxxxxx> wrote: > > > On Thu, Jul 5, 2018 at 5:47 PM, Jeff Backus <jeff.backus@xxxxxxxxx> wrote: > > > >> > >> On Thu, Jul 5, 2018 at 5:07 PM, Zbigniew Jędrzejewski-Szmek < > >> zbyszek@xxxxxxxxx> wrote: > >> > >>> > >>> Might be a problem in systemd code to select clock type > >>> (monotonic/realtime/etc.). > >>> You can try taking an older image, and compiling systemd, and running > >>> the tests. > >>> Even something as simple as > >>> sudo dnf build-dep systemd > >>> git clone https://github.com/systemd/systemd > >>> cd systemd > >>> meson -Dman=false build && ninja -C build && ninja -C build test > >>> > >>> If that passes, then the next step would be to take that older image, > >>> install just the newer kernel, and repeat the tests. > >>> > >>> Zbyszek > >>> > >> > >> > > Here's a quick update, since I may not be able to get back to this until > > early next week. I was able to build the version of systemd that is in the > > master branch of the GH repo, SHA: 8255430. All tests that were executed > > pass under kernel 4.16.16-300. About 10 tests were skipped. The following > > skipped tests seem to be of particular interest: > > * test-udev > > * test-boot-timestamps > > > > I was able to insert an "assert_se(1==0)" after the line that triggered > > the assertion when booting from the installer, and numerous tests fail. So > > that code is at least getting exercised. > > > > Installed the latest version of the kernel available for F28, 4.17.3-200, > > and test results were the same. I am now trying to build 4.18.0-0.rc3, > > since that appears to be the latest version in rawhide. > > > > I updated to 4.18.0-0.rc3 and the problem showed up. I didn't have long to > glance at the logs, but I am seeing the systemd segfault related to udev. > This is with whatever version my F28 system had installed, not the version > I compiled from GH. So, looks like an issue in the kernel. I'll try to > extract more info from the journal when I get a chance. Are there any boot > options, etc. that would produce additional helpful info? See https://www.freedesktop.org/wiki/Software/systemd/Debugging/. Zbyszek _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx/message/OCLEH53BOB7Y23CTQJHHWAOA2QBLMOX4/
