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.
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- 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