Bug 1187695
| Summary: | systemd "Looping too fast" after reexec with broken dbus socket | ||||||||
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| Product: | [Fedora] Fedora | Reporter: | Tomáš Bžatek <tbzatek> | ||||||
| Component: | systemd | Assignee: | Michal Schmidt <mschmidt> | ||||||
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 23 | CC: | johannbg, jsynacek, lnykryn, lsu, mschmidt, msekleta, s, systemd-maint, trevor, tsmetana, vpavlin, zbyszek | ||||||
| Target Milestone: | --- | Keywords: | Reopened | ||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2016-12-20 13:11:27 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
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Description
Tomáš Bžatek
2015-01-30 17:04:47 UTC
Created attachment 986086 [details]
journalctl -b
*** This bug has been marked as a duplicate of bug 1186018 *** I'm about 90% sure that this is a dup of bug 1186018. If killing "dbus-send" doesn't work around the issue, please, reopen this bugzilla. Unduplicating. Bug 1186018 is related, but it's not the same bug. I can now reproduce it using these steps: 1. Lose the DBus system bus socket by following the steps from https://bugzilla.redhat.com/show_bug.cgi?id=1186018#c7 2. Tell systemd to reexec: kill -TERM 1 After 25 seconds I see the first error message: Failed to register match for Disconnected message: Connection timed out This repeats a couple more times. Eventually the "Looping too fast" start appearing too. (I have no reproducer or explanation for the unkillable systemctl observed by Tomáš. It should not be possible to cause that from userspace.) It seems to me that this bug was caused by updating dbus (to version which changed unit file option ListenStream) and systemd in the single dnf transaction. Also I think that patch for bug 1186018 should also fix this one because we would not end up with two sockets after daemon reload in the first place. It would be great if systemd could handle cases like this one in more robust manner than entering "busy" loop after reexec. However with kdbus this entire sort of issues should go away entirely. (In reply to Michal Sekletar from comment #5) Michal, I agree with everything you wrote there. Still, I find the failure mode interesting enough to make me want to look into it further. And that's why I reopened this BZ. I'm assigning it to myself so you don't have to waste your time on it. This bug appears to have been reported against 'rawhide' during the Fedora 23 development cycle. Changing version to '23'. (As we did not run this process for some time, it could affect also pre-Fedora 23 development cycle bugs. We are very sorry. It will help us with cleanup during Fedora 23 End Of Life. Thank you.) More information and reason for this action is here: https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora23 This message is a reminder that Fedora 23 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 23. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '23'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 23 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. Fedora 23 changed to end-of-life (EOL) status on 2016-12-20. Fedora 23 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed. |