Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock when scheduling workqueue elements")

From: hch@xxxxxx
Date: Tue Feb 14 2017 - 09:51:25 EST


On Tue, Feb 14, 2017 at 02:46:41PM +0000, Dexuan Cui wrote:
> > From: hch@xxxxxx [mailto:hch@xxxxxx]
> > Sent: Tuesday, February 14, 2017 22:29
> > To: Dexuan Cui <decui@xxxxxxxxxxxxx>
> > Subject: Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock
> > when scheduling workqueue elements")
> >
> > Ok, thanks for testing. Can you try the patch below? It fixes a
> > clear problem which was partially papered over before the commit
> > you bisected to, although it can't explain why blk-mq still works.
>
> Still bad luck. :-(
>
> BTW, I'm using the first "bad" commit (scsi: allocate scsi_cmnd structures as
> part of struct request) + the 2 patches you provided today.
>
> I suppose I don't need to test the 2 patches on the latest linux-next repo.

I'd love a test on that repo actually. We had a few other for sense
handling since then I think.