PSA: bad HP udev rules somehow break boot with systemd 38

[Adam Williamson]

On Tue, 2012-01-24 at 14:53 +0100, Michal Schmidt wrote:
> On 01/23/2012 09:39 PM, Adam Williamson wrote:
> >  systemd 37 didn't have a problem booting. I suppose the
> > large number of errors slows udev start down so much that it hits some
> > kind of timeout in 38 that isn't in 37, maybe?
> 
> v38 introduced the journal and removed the old systemd-kmsg-syslogd 
> bridge. As a side effect of the change, the ordering of syslog.socket to 
> the rest of the system is not quite correct now. If you're unlucky, you 
> will see journald blocking for extended periods of time until rsyslog 
> starts. And other processes (in your case: udev) will block on journald.
> I noticed the SELinux relabeling process was affected by the same problem.
> We have to fix that in systemd.

That sounds plausible - kay even tried putting the same bad udev rules
onto his systems and couldn't reproduce the bug, so it does look like a
case of having to be very (un)lucky with timing.
-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora
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