On 3/22/23 10:42, Udo Grabowski (IMK) wrote:
On 21/03/2023 23:09, Stephan Althaus wrote:
On 3/21/23 20:53, Richard Lowe wrote:
A good thing to do is to get into mdb when it's hung, and see where we
are with the ::stacks command.
https://illumos.org/books/dev/debugging.html has other tips.
I would add if you set the 1 bit of `moddebug` when you're in kmdb (I
think moddebug/W 80000001 is verbose and stop on _init, but I tend to
forget), we will stop whenever a module `_init` is called, which can
be a good trick to try to narrow down where things might have gone
wrong if we don't respond to any means to get into kmdb.
More manually, an illumos version which works and one which doesn't
work will narrow down which illumos changes might have caused
problems.
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Hello!
Thanks for your input. I tried the kmdb switched on on boot,
with ::cont i have the same situation that i can't escape the running
process to
get the ::stack
Comparing the boot messages of the working BE and the not-working
one, it stops
between these two pseudo-devices:
<snip>
Mar 21 22:19:56 dell7720 pseudo: [ID 129642 kern.notice]
pseudo-device: signalfd0
*Mar 21 22:19:56 dell7720 genunix: [ID 936769 kern.notice] signalfd0 is
/pseudo/signalfd@0*
Mar 21 22:19:56 dell7720 pseudo: [ID 129642 kern.notice]
pseudo-device: timerfd0
Mar 21 22:19:56 dell7720 genunix: [ID 936769 kern.notice] timerfd0 is
/pseudo/timerfd@0
<snip>
The line with "*signalfd0 is /pseudo/signalfd@0*" is the last output,
then
nothing more happens.
You can pin that down to timerfd if you just mount the new BE and
move away /usr/kernel/drv/amd64/timerfd and see if it then boots.
Consult 'man timerfd' to convince yourself that that driver is
irrelevant to illumos...
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Hello!
I followed your hint and removed timerfd, and uninstalled smartmontools
in the new BE but no change.
I looked around a bit more with the help of ::dcmds and found all sort
of drivers, threads, tasks, it seems that rpool/ is mounted, (how can i
verify?)
almost everything i think of is there (sort of) - and no word of errors..
I just can't find a reason why it is not "going on everything looks fine..."
Regards,
Stephan
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