On 05/22/2018 09:33 AM, Patrick O'Callaghan wrote:
On Tue, 2018-05-22 at 23:00 +0800, Ed Greshko wrote:
>>> So, those processes may potentially keep copies of libraries that have been
updated
>>> and (guessing) clashes happen with new processes with new libraries.
>> Yes, I'm aware of that. However 'tracer' supposed to detect this,
>> either when called from the Shell or via the dnf plug-in. That's why
>> it's telling me to restart the session.
>
> I seriously doubt that tracer will be able to detect that some processes may survive
> a log-outt/log-in event.
Naturally not, but it should (and AFAIK does) detect libraries being
updated and recommend that processes using them be restarted.
> Do you run tracer again after logging in again?
I sometimes run it from a root console while the user session is logged
out, and make sure nothing out of date is still hanging around. This
doesn't appear to correlate with the problem, but I haven't been
systematic enough about it to be sure.
>>> Therefore, I don't logout/login after updates. If anything, I reboot.
In my case a
>>> reboot takes about 12 seconds so I'm not bothered by it.
>> It's fast here too, but I usually have a VM running that I may not want
>> to forcibly reboot.
>>
> There is always something, isn't there?
Yes, Murphy had something to say about that ...
And I just had lightdm screw up royally. First, upon login I got an
XFCE polkit error popup, which is singularly useless in telling you
anything you can troubleshoot with. Then, I had no access to the sound
hardware on my machine, nor could I enable/disable wireless, play
with firewall settings or anything else, as polkit thought I didn't have
permissions to do anything, nor did it ever pop up an authentication
dialog.
I wiped my xfce settings, reinstalled lightdm, xfce4-polkit and anything
else I could think of to no avail. I finally just punted, disabled
lightdm and enabled lxdm and everything started working again.
Very, VERY frustrating. Grrrrr!
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