Messages in this thread | | | Date | Tue, 24 Jan 2012 16:39:54 +0200 | From | Avi Kivity <> | Subject | Re: x86, mce, Use user return notifier in mce |
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On 01/13/2012 09:41 AM, Tony Luck wrote: > On Thu, Jan 12, 2012 at 10:32 PM, Huang Ying <ying.huang@intel.com> wrote: > > You are right. User return notifier can not be used for SRAR. I think > > that may be useful for SRAO. Where we need a way to do notify earlier > > in case of the corresponding work_queue item is not executed in time. > > OK - I've been so focused on SRAR that I didn't think of the SRAO case. > But even there it seems odd to use user return notifier. We'd like the > SRAO work item to be executed promptly - but we don't care where it > is executed. So the "execute on this cpu" part of user return notifiers > doesn't quite fit. >
Also, nothing bounds the time until a urn executes. If the cpu stays in the kernel forever, it will never fire.
-- error compiling committee.c: too many arguments to function
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