Re: [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interruptresponses)
From: Jiri Kosina
Date: Mon Mar 18 2013 - 18:04:40 EST
On Mon, 18 Mar 2013, Daniel Vetter wrote:
> Yep, there's a big comment in the irq handler for that chipset that we
> have a gaping race with when using MSI interrupts. Although the comment
> bodly claims that the race is small enough to avoid the dreaded "nobody
> cared" message. Looks like gmbus is good at hitting that race - on newer
> chips it already brought up a similar race in handling pch interrupts.
I see ... will target my focus in that direction, thanks.
> Can you please give the below patch a whirl? It removes the probably race
> msi race avoidance code and replaces it with the same trick Paulo used to
> fix pch irq handling races.
Unfortunately it didn't change anything, the spurious interrupt report is
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