[OT] kernel debugging question
I was wondering, if anyone is into this kind of stuff: what kind of
kernel programming bug can completely bring down the kernel and system?
I am referring to a complete lockup: no screen output, no keyboard
response, even with serial keyboard, not even the keyboard LEDs respond,
no netconsole, no kernel panic, no crash dump, no messages in any log,
it can't even be detected by NMI watchdog, and it doesn't trigger KDB
(kernel debugger) if it is enabled. Just a freeze, that requires
hardware reset.
I would say it's a hardware fault, except it's shared by many people,
and the common denominator is the ath9k driver. A bug is reported [1]
but I'd like to help solve it.
Best regards, Panayiotis
[1] https://bugzilla.kernel.org/show_bug.cgi?id=42903
Reply to: