Re: [PATCH] KVM: PPC: Book3S HV nestedv2: Don't drop pending doorbell across L2 entry

[Anushree Mathur <anushree.mathur@linux.ibm.com>]

On 19/08/26 4:42 PM, Amit Machhiwal wrote:
> On 2026/08/19 04:32 PM, Anushree Mathur wrote:
>>
> <...snip...>
>
>> b) Even after applying the patch also it is giving same softlockup issue as
>> mentioned above:
> Hi Anushree,
>
> There was a v2 of this patch sent here:
>
>    https://lore.kernel.org/all/20260812034628.1122115-1-vaibhav@linux.ibm.com/
>
> Did you get a chance to test it? Could you verify if the issue persists
> with the v2 as well?
>
> Thanks,
> Amit
>
>> Though I have enough vcpus and memory on the guest (16 vcpus , 13Gi of
>> memory)  and ample amount of memory and cpus
>> present on host still these softlockups are happening after applying the
>> patch too. I tried reducing stress also on the guest
>> but still this issue is seen.
>>
>> stress-ng --cpu 4 --vm 2 --vm-bytes 1G --hdd 2 --hdd-bytes 1G --sched other
>> --timeout 3600000s
>>
>> If you are planning to send next version of this patch,
>> Please do add my reported-by:
>> Reported-by: Anushree Mathur <anushree.mathur@linux.ibm.com>
>>
Hi Amit,
Yes I have tested this patch too and I am still seeing the issue. Let me
reply back for this v2 patch also.

Thank you,
Anushree Mathur