Re: [PATCH v7 5/8] loop: be paranoid on exit and prevent new additions / removals

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On Mon, Jun 22, 2020 at 07:16:15PM -0700, Bart Van Assche wrote:
> On 2020-06-22 05:27, Luis Chamberlain wrote:
> > Note: this will bring you sanity if you try to figure out *why* we still
> > get:
> > 
> > [235530.144343] debugfs: Directory 'loop0' with parent 'block' already present!
> > [235530.149477] blktrace: debugfs_dir not present for loop0 so skipping
> > [235530.232328] debugfs: Directory 'loop0' with parent 'block' already present!
> > [235530.238962] blktrace: debugfs_dir not present for loop0 so skipping
> > 
> > If you run run_0004.sh from break-blktrace [0]. Even with all my patches
> > merged we still run into this. And so the bug lies within the block
> > layer or on the driver. I haven't been able to find the issue yet.
> > 
> > [0] https://github.com/mcgrof/break-blktrace
> 
> Thanks Luis for having shared this information. If I can find the time I
> will have a look into this myself.

Let's keep track of it:

https://bugzilla.kernel.org/show_bug.cgi?id=208301

  Luis



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