With very high probability there is something GUI related going on, and
nothing related to opening files per se. Booting a linux system
involves a large number (100000s) of open calls. So it's either the X
server / wayland compositor that pauses for whatever reason or the GUI
framework that is blocking for some reason. I would rule out hardware
problems if the machine is stable, those would crash the machine but
not cause any "pauses". Some power management related stuff would be
remotely possible (machine trying to go to sleep), but why would that
be triggered by openening files.
Am Sonntag, dem 13.04.2025 um 13:47 -0400 schrieb gene heskett:
> > I would check if there are some hanging network
> > mounts. If possible, check hanging processes which state they are
> > in
> > ('D' means "uninterruptible wait", i.e. waiting for some blocking
> > file-
> > I/O to complete, hanging NFS mount could cause that). Check your
> > DNS
> > settings and if you usual hosts resolve.
>
> How do I see that in the time the freeze exists? Chicken/egg problem.
> Hosts file based home network, anything powered up pins fine by name.
> There is a dhcpd, configed to answer one MAC for a QIDI 3d printer
> thats
> hard coded.
If only the app is affected (not the whole system) then opening a
terminal window parallel to the app and running e.g. "htop" in that
terminal and sort by process state could achieve that. But if really
the whole system freezes, including mouse movements, CTRL-ALT-Fx
console switching and the alt-sysrq-... chords I'm out of idea what
could cause that. Sorry.
You could try PINGing the problematic machine from another machine and
look if those pings also stop, in that case some proper exorcism would
be needed. SSHing into the box and running htop and/or "sudo journalctl
-ef" in the ssh session could also give a hint if something fishy is
going on.
regards
Robert
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