Messages in this thread | | | Date | Mon, 20 Jan 2014 19:22:51 -0700 (MST) | From | Nate Eldredge <> | Subject | Re: math_state_restore and kernel_fpu_end disable interrupts? |
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On Sun, 19 Jan 2014, George Spelvin wrote:
>> It's credited to Suresh Siddha, whom I've cc'ed (along with others who >> signed off). Suresh, if you're still around, could you comment on why >> math_state_restore always leaves interrupts disabled, regardless of their >> state on entry? Is there a deep reason or is it a bug? > > What the comments seemed to be implying was that it was a bug to enter > this code with interrupts enabled. So the problem may be a little bit > more systemic; expert counsel is required.
It would be kind of weird for code that requires disabled interrupts on entry to turn around and enable interrupts itself. I agree that it would really help for a guru to take a look...
On which note, Suresh's email bounced :-(
-- Nate Eldredge nate@thatsmathematics.com
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