Re: [RFC PATCH 14/16] irq: Add support for core-wide protection of IRQ and softirq

From: Vineeth Remanan Pillai
Date: Fri Jul 10 2020 - 09:36:58 EST


Hi Aubrey,

On Fri, Jul 10, 2020 at 8:19 AM Li, Aubrey <aubrey.li@xxxxxxxxxxxxxxx> wrote:
>
> Hi Joel/Vineeth,
> [...]
> The problem is gone when we reverted this patch. We are running multiple
> uperf threads(equal to cpu number) in a cgroup with coresched enabled.
> This is 100% reproducible on our side.
>
> Just wonder if anything already known before we dig into it.
>
Thanks for reporting this. We haven't seen any lockups like this
in our testing yet.

Could you please add more information on how to reproduce this?
Was it a simple uperf run without any options or was it running any
specific kind of network test?

We shall also try to reproduce this and investigate.

Thanks,
Vineeth