My system crashed, how can determine the reason?

[pablo_supertux]

Hi. A few minutes ago, my system crashed, I think it was a kernel panic, because everything stopped working, no mouse, no keyboard, no ssh, dead, completely dead. I had to press the reboot button.

My /var/log/dmesg file shows only the dmesg of the current boot, so the previous one that crashed is gone. But I found this in /var/log/message

https://gist.github.com/shaoran/dae06117e86dcf55c656978bcf89125b

could it be reason of my crash? And how can I interpret this output? What can I do with that? Can I file a bug report with this and if so, where?

I'm running 5.10.27-gentoo (gentoo-sources). Since my last kernel update (a few weeks ago) I started having strange problems I didn't have before the update, like my webcam that stopped working and a similar crash yesterday. I wonder whether the problems I see are related to the kernel version?
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[joanandk]

You should get your RAM checked (for example with memtest86).

If RAM is ok, then there might be some issue with Kernel 5.10.27. I have encountered crashing on one system with Kernel 5.10.27, 4 others seems to work fine with 5.10.27.

BR