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Date:   Mon, 20 Feb 2017 08:35:39 +0100
From:   Christoph Hellwig <>
To:     Jens Axboe <>
Cc:     Bart Van Assche <>,
        Linus Torvalds <>,
        "" <>,
        "" <>,
        Christoph Hellwig <>,
        Mike Snitzer <>
Subject: Re: [GIT PULL] Block pull request for- 4.11-rc1

On Sun, Feb 19, 2017 at 06:15:41PM -0700, Jens Axboe wrote:
> I don't think that's a regression in this series, it just triggers more easily
> with this series. The BLOCK_PC removal fixes aren't touching device life times
> at all.


> That said, we will look into this again, of course. Christoph, any idea?

No idea really - this seems so far away from the code touched, and there
are no obvious signs for a memory scamble from another object touched
that I think if it really bisects down to that issue it must be a timing

But reading Bart's message again:  Did you actually bisect it down
to the is commit?  Or just test the whole tree?  Between the 4.10-rc5
merge and all the block tree there might a few more likely suspects
like the scsi bdi lifetime fixes that James mentioned.

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