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

From	"hch@lst.de" <hch@lst.de>
Newsgroups	linux.kernel
Subject	Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock when scheduling workqueue elements")
Date	2017-02-14 16:00 +0100
Message-ID	<taMKe-38T-17@gated-at.bofh.it> (permalink)
References	(5 earlier) <t9kQ3-4Jf-33@gated-at.bofh.it> <taLEt-2wc-5@gated-at.bofh.it> <taM7v-2Vs-5@gated-at.bofh.it> <taMqS-320-29@gated-at.bofh.it> <taMAy-35w-21@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, Feb 14, 2017 at 02:46:41PM +0000, Dexuan Cui wrote:
> > From: hch@lst.de [mailto:hch@lst.de]
> > Sent: Tuesday, February 14, 2017 22:29
> > To: Dexuan Cui <decui@microsoft.com>
> > 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.

Thread

Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event         lock when scheduling workqueue elements") "hch@lst.de" <hch@lst.de> - 2017-02-14 14:50 +0100
  Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event         lock when scheduling workqueue elements") "hch@lst.de" <hch@lst.de> - 2017-02-14 15:40 +0100
    RE: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock  when scheduling workqueue elements") Dexuan Cui <decui@microsoft.com> - 2017-02-14 15:50 +0100
      Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event         lock when scheduling workqueue elements") "hch@lst.de" <hch@lst.de> - 2017-02-14 16:00 +0100
        Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event         lock when scheduling workqueue elements") "hch@lst.de" <hch@lst.de> - 2017-02-14 17:40 +0100
          RE: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock  when scheduling workqueue elements") Dexuan Cui <decui@microsoft.com> - 2017-02-15 15:00 +0100

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