[Bug 1890890] Re: more debugging verbosity for udev rules needed
Launchpad Bug Tracker
1890890 at bugs.launchpad.net
Sat Oct 10 04:17:25 UTC 2020
[Expired for systemd (Ubuntu) because there has been no activity for 60
days.]
** Changed in: systemd (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1890890
Title:
more debugging verbosity for udev rules needed
Status in systemd package in Ubuntu:
Expired
Bug description:
I wrote a udev rule that would not trigger when expected. I spent 2
days working on it, trying to understand what the problem was. I
finally figured it out -- it was a matching problem:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1890836
The most verbose output possible is with the log level set to "debug".
This level of logging does not show users what criteria is being
checked and what the result is. So users are working in the dark. We
have to guess what udev is doing. And we're bad at it, because if we
could guess correctly we probably would have written the rule
correctly in the first place.
Consider procmail. This is an application where users write rules
that contain matching criteria. When Procmail doesn't work as
expected, the logs show in detail what criteria matches and what does
not. This is what udev needs.
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