Re: Firefox and Thunderbird freeze system causing a reboot

Hi Sean,

thanks for your tips, very helpful!

Am 17.11.2024 um 18:37 schrieb Sean C. Farley:
> Various things to consider:
> - Run MemTest86 on your system for a few passes to make sure your memory
>    is stable.  If you undervolt too much, this will fail.  However, it
>    could be a sign of bad memory or not enough current to the Memory
>    Controller (MC).  The highest level of XMP for my memory will knock
>    the voltage of the MC to a low level causing major system instability.

I ran MemTest86 for several passes and no errors were reported. The 
machine wasn't overclocked or undervolted.

> - I doubt it is the act of Firefox or Thunderbird dying that is causing
>    the system to crash.  They could be tickling something to cause that
>    such as a driver.

As indicated in my reply to Pete, I decided to replace the machine after 
it began exhibiting failures to boot properly after problems with the 
BIOS occured.

[...]

> - Check in /var/crash for any panics.  That could be why it takes a
>    couple of minutes to reboot; it is writing the panic to disk.
> 
> - Enable crash dumps in /etc/rc.conf.  See rc.conf(5) and dumpon(8) for
>    information.

Crash dumps were enabled, but never got written to disk (Swap on ZFS is 
a bad idea). In any case, there wasn't any disk activity when this 
problem occured, that's what puzzled me the most.

Best
Philipp