[RFC PATCH] nvme: prevent hang on surprise removal of NVMe disk

[Hannes Reinecke]

On 2/15/22 20:17, Christoph Hellwig wrote:
> On Mon, Feb 14, 2022 at 10:51:07AM +0100, Markus Blöchl wrote:
>> After the surprise removal of a mounted NVMe disk the pciehp task
>> reliably hangs forever with a trace similar to this one:
> 
> Do you have a specific reproducer? At least with doing a
> 
> echo 1 > /sys/.../remove
> 
> while running fsx on a file system I can't actually reproduce it.

You should be able to reproduce it doing a PCI hotplug from qemu.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
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