[Bug 280246] ath: Instant reboot after ifconfig wlan0 destroy

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280246

--- Comment #3 from Bjoern A. Zeeb <bz@FreeBSD.org> ---
(In reply to Henrich Hartzer from comment #2)

See dumpdev in rc.conf to get core dumps.

savecore_enable is hopefully enabled by default even on a release.
If you have gdb from ports (packages) installed it will also create a crashinfo
which is helpful.

There's a chapter in the handbook (though I have not read it much recently
myself):  https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/


In case you are able to reproduce it you may consider setting up an bhyve
environment with passthru for the ath device to not panic your base system.
Help can be found to set this up (I should really write that up fir wireless
debugging).

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