Re: modprobe mlx5_core on OCI bare-metal instance causes unrecoverable hang and I/O error

[Jason Gunthorpe]

On Wed, Feb 05, 2025 at 05:09:13PM -0600, Mitchell Augustin wrote:
> Hello,
> 
> I have identified a bug in the mlx5_core module, or some related component.
> 
> Doing the following on a freshly provisioned Oracle Cloud bare metal
> node with this configuration [0] will reliably cause the entire
> instance to become unresponsive:
> 
> rmmod mlx5_ib; rmmod mlx5_core; modprobe mlx5_core
> 
> This also produces the following output:
> 
> [  331.267175] I/O error, dev sda, sector 35602992 op 0x0:(READ) flags
> 0x80700 phys_seg 33 prio class 0

Is it using iscsi/srp/nfs/etc for any filesystems?

Jason