Messages in this thread | | | Subject | Re: Question on threaded handlers for managed interrupts | From | John Garry <> | Date | Fri, 21 May 2021 13:46:22 +0100 |
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Hi Thomas,
On 23/04/2021 14:01, Thomas Gleixner wrote: > On Fri, Apr 23 2021 at 12:50, Thomas Gleixner wrote: >> On Thu, Apr 22 2021 at 17:10, John Garry wrote: >> OTOH, the way how you splitted the handling into hard/thread context >> provides already the base for this. >> >> The missing piece is infrastructure at the irq/scheduler core level to >> handle this transparently. >> >> I have some horrible ideas how to solve that, but I'm sure the scheduler >> wizards can come up with a reasonable and generic solution.
JFYI, A performance-related fix was recently added in the block layer, and I can no longer reproduce this hang.
But I have no reason to say that it no longer exists.
Thanks, John
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