Re: 5.13-rt1 + KVM = WARNING: at fs/eventfd.c:74 eventfd_signal()

From: Daniel Bristot de Oliveira
Date: Thu Jul 15 2021 - 08:31:56 EST


On 7/15/21 12:22 PM, Hillf Danton wrote:
>> the lock needs to be per-pcu... but so far, so good. I will continue using the
>> system in the next days to see if it blows on another way.
> Curiou, is it so good as to see the warning no longer printed? Or your
> box still works even with the warning in log?
>

Without the patch:

- warn on dmesg
- I lose my connection with VM (as a side effect)

With the patch:
- no warn
- continue using the VM normally...

-- Daniel