On 2020-04-23 05:25, Ed Greshko wrote:
On 2020-04-23 20:06, ToddAndMargo via users wrote:
On 2020-04-23 03:53, ToddAndMargo via users wrote:
Fedora 31, x64
Xfce 4.14
Shutdown hangs:
https://bugzilla.redhat.com/show_bug.cgi?id=1815686
Hi All,
Randomly and not associated with any particular program,
my system will slow down. It becomes obvious when I can
type faster than letters appear. And when this happens,
a reboot will fix it.
But the shutdown and reboot process hangs when the
slowdown appears. After the shutdown/reboot sequence
gets to "Target Reached Power Off" (or restart), a
delay of about two minutes and then I get my CPU
registries displayed over and over.
Looks like this:
repeating CPU registries:
https://bugzilla.redhat.com/attachment.cgi?id=1672106
This is my dmesg:
# journalctl -b --no-hostname -k > dmesg.tx
https://bugzilla.redhat.com/attachment.cgi?id=1672107
This has happened three times in one day. It has also
gone for days without an issue.
And again, no particular program either. I initially
thought it was qemu-kvm, then VLC, but it has happened
with neither running. And just sitting at the desktop
with the screen saver running.
Any words of wisdom?
Many thanks,
-T
Also, when this happens, backups (dump, tar) take about
eight times long to complete.
And to just be clear, if no slow down is apparent, shutdown
and reboot work perfectly: they do not hang
So, you're saying that if you see a slowdown then you'll have the issue with reboot/shutdown.
Yes. And time does not heal. Only the magic one fingered reset (POR
-- Power On Reset) works.
That would suggest to me that determining the cause of the slowdown is most important.
I would concur
When the slowdown happens, can you switch to another VT (ctrl-alt-F2) or ssh in from elsewhere
and see if there is any unusual CPU or I/O activity?
You have to be quick. As soon as "shutdown reached", everything freezes
except the revolving CPU registry
prints outs
It sounds as if this issue happens for you frequently? And, are you still on the kernel shown in the
BZ?
What is BZ?
There have been updates to the kernel since that time.
Every day. I keep hoping a kernel update will come through
and fix it
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