[Intel-wired-lan] [bug report]iavf: deadlock on detach/attach vf to VM with net_failover

[Glaza, Jan]

On 8/26/2024 5:19 AM, Faicker Mo wrote:
> Hello, we met a problem with iavf driver, the ubuntu22.04 kernel 5.15.0-119 and 6.11rc4 both have the same problem.
> 
>  
> 
> When the X710 VF is detached and attached to the VM with net_failover, the kworker thread in VM hang. The backtrace is
...

> It looks like a dead lock of adapter->crit_lock.
> A similar problem, https://patchwork.ozlabs.org/project/intel-wired-lan/patch/20220808175845.484968-1-ivecera@redhat.com/#2947762 <https://patchwork.ozlabs.org/project/intel-wired-lan/patch/20220808175845.484968-1-ivecera@redhat.com/#2947762>
> 

Hello, we are attempting local reproduction and will work to analyze and 
fix the issue. If you are able to, could you please provide us with the 
reproduction commands or script to facilitate easier investigation and 
rootcausing?

Best regards, 
Jan