| Date | Thu, 21 Jun 2018 21:46:56 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH 02/16] x86/split_lock: Handle #AC exception for split lock in kernel mode |
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On Sun, May 27, 2018 at 08:45:51AM -0700, Fenghua Yu wrote: > When #AC exception for split lock is triggered from a kernel instruction, > by default we don't want the exception to panic the whole system. Instead, > the exception handler should log the fault information for debug and > continue the instruction execution.
This should not happen today, did you find any unaligned LOCK insns?
This is a lot of code to 'handle' something that really should not ever happen. Maybe just WARN and clear the MSR bit, nothing complicated.
Also, fix your "disgusting drug-induced crap" comments.
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