blktests failures with v6.19 kernel

[Daniel Wagner]

Hi Chaitanya,

On Sat, Feb 14, 2026 at 09:19:47PM +0000, Chaitanya Kulkarni wrote:
> On 2/13/26 01:56, Daniel Wagner wrote:
> > nvmet_fc_target_assoc_free runs in the nvmet_wq context and calls
> >
> >    nvmet_fc_delete_target_queue
> >      nvmet_cq_put
> >        nvmet_cq_destroy
> >          nvmet_ctrl_put
> >           nvmet_ctrl_free
> >             flush_work(&ctrl->async_event_work);
> >             cancel_work_sync(&ctrl->fatal_err_work);
> >   
> > The async_event_work could be running on nvmet_wq. So this deadlock is
> > real. No idea how to fix it yet.
> >
> 
> Can following patch be the potential fix for above issue as well ?
> totally untested ...

Yes this should work. I was not so happy adding a workqueue for this but
after looking at nvme, this seems acceptable approach. Though, I'd make
nvmet follow the nvme and instead adding an AEN workqueue, rather have a
nvmet-reset-wq or nvmet_delete-wq.

Thanks,
Daniel