Re: [PATCH 23/34] btrfs: allow btrfs_submit_bio to split bios

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On Thu, Jan 26, 2023 at 06:46:11PM +0100, Christoph Hellwig wrote:
> On Thu, Jan 26, 2023 at 12:43:01PM -0500, Josef Bacik wrote:
> > I actually hadn't been running 125 because it wasn't in the auto group, Dave
> > noticed it, I just tried it on this VM and hit it right away.  No worries,
> > that's why we have the CI stuff, sometimes it just doesn't trigger for us but
> > will trigger with the CI setup.  Thanks,
> 
> Oh, I guess the lack of auto group means I've never tested it.  But
> it's a fairly bad bug, and I'm surprised nothing in auto hits an
> error after a bio split.  I'll need to find out if I can find a simpler
> reproducer as this warrants a regression test.

The 'auto' group is good for first tests, I'm running 'check -g all' on
my VM setups. If this is enough to trigger errors then we probably don't
need a separate regression test.



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