Re: [PATCH v4] hw/nvme: Use ioeventfd to handle doorbell updates

[Jinhao Fan]

at 4:55 AM, Klaus Jensen <its@irrelevant.dk> wrote:

> 
> We have a regression following this patch that we need to address.
> 
> With this patch, issuing a reset on the device (`nvme reset /dev/nvme0`
> will do the trick) causes QEMU to hog my host cpu at 100%.
> 
> I'm still not sure what causes this. The trace output is a bit
> inconclusive still.
> 
> I'll keep looking into it.

I cannot reproduce this bug. I just start the VM and used `nvme reset
/dev/nvme0`. Did you do anything before the reset?