[bug report] NVMe hotplug bug in kernel 5.15 with CONFIG_INTEL_IOMMU disabled

[Chaitanya Kulkarni]

On 7/8/24 01:26, Artur Piechocki wrote:
> Hi,
>
> I am experiencing a repeatable (potential deadlock) issue when
> hotplugging NVMe devices on kernel 5.15. The problem occurs on a Ubuntu
> 22.04.4 server environment when Intel IOMMU support is disabled in the
> kernel configuration (CONFIG_INTEL_IOMMU is not set). This issue is also
> reproducible on the native kernel 5.15.161 without any Ubuntu patches.
>
> System Information:
>
>     Distribution: Ubuntu 22.04.4 server
>     Kernel Version: Ubuntu 5.15.152 (also repeated on native 5.15.161)
>     Hardware: NVME Micron SSDPE2KX020T8, Intel(R) Xeon(R) Gold 5222 

do you see same issue on latest branch in NVMe repo ?

-ck