Re: [LKP] [workqueue] 4d43d395fe: WARNING:at_kernel/workqueue.c:#__flush_work

[James Smart]

On 3/4/2019 10:21 AM, Sagi Grimberg wrote:
> > Forwarding to NMVE people:
> >
> > kernel test robot found that
> > flush_work(&ctrl->async_event_work) is called from nvmet_ctrl_free()
> > without INIT_WORK(&ctrl->async_event_work, nvmet_async_event_work)
> > after ctrl was allocated (probably initialized with 0).
> > Will you make sure that INIT_WORK() is always called?
>
> I cannot reproduce this issue. When following the code I don't
> immediately see how this can happen.. Was there something special
> in this specific test run? Is it 100% reproduce-able?

I agree. INIT_WORK is setup as almost one of the first items for a new 
controller.  Smells more like a double-free or a corrupt ctrl struct 
from the transport.

-- james