Hide Forgot
Description of problem: dnf/yumex-dnf hands because the programs wait for dnf-makecache.service to finsh and release dnf lock Version-Release number of selected component (if applicable): dnf-2.5.1-1.fc26.noarch How reproducible: Steps to Reproduce: 1. running dnf update Hangs with: Waiting for process with pid XXXXX to finish. 2.systemctl status dnf-makecache Loaded: loaded (/usr/lib/systemd/system/dnf-makecache.service; static; vendor Active: activating (start) since Sun 2017-07-16 06:49:08 CEST; 56min ago Main PID: 17850 (dnf) Tasks: 1 (limit: 4915) CGroup: /system.slice/dnf-makecache.service └─17850 /usr/libexec/system-python /usr/bin/dnf makecache timer 3. restart systemctl restart dnf-makecache and now systemctl restart hangs:-( Additional info: dnf [options] makecache --timer Change line 14 in /usr/lib/systemd/system/dnf-makecache.service -ExecStart=/usr/bin/dnf makecache timer +ExecStart=/usr/bin/dnf makecache --timer Then systemctl restart dnf-makecache works and: systemctl status dnf-makecache Active: inactive (dead) since Sun 2017-07-16 08:01:10 CEST; 9min ago Process: 18950 ExecStart=/usr/bin/dnf makecache --timer (code=exited, status=0 Main PID: 18950 (code=exited, status=0/SUCCESS)
The old syntax was restored in dnf-2.5.1-1.fc26 or before, so it was not the solution. It is still hanging and seen on 2 machines and it is not reproducible every time it runs: systemctl status dnf-makecache ● dnf-makecache.service - dnf makecache Loaded: loaded (/usr/lib/systemd/system/dnf-makecache.service; static; vendor Active: activating (start) since Sun 2017-07-16 15:01:13 CEST; 1h 4min ago Main PID: 27522 (dnf) Tasks: 1 (limit: 4915) CGroup: /system.slice/dnf-makecache.service └─27522 /usr/libexec/system-python /usr/bin/dnf makecache --timer Is should have a timeout so it don't block yumex-dnf in case of an issue.
I see this as well on several Fedora 25 machines. According to "strace -f -p $PID" (with $PID being the pid that "systemctl status dnf-makecache" gives me), it hangs with FUTEX_WAIT_PRIVATE. A first "systemctl restart dnf-makecache", cancelled by Ctrl+C after a few seconds, and then followed by a second "systemctl restart dnf-makecache", temporarily fixes the problem until the corresponding systemd timer triggers the time.
Just to be complete: the affected oackage version on my Fedora 25 machines is dnf 0:1.1.10-6.fc25. Though I have installed these machines quite recently so I don't know if previous versions of the dnf package are affected as well.
*** This bug has been marked as a duplicate of bug 1470352 ***