linux-kernel - Re: Linux 5.10

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Date:   Mon, 14 Dec 2020 11:26:31 -0500
From:   Mike Snitzer <snitzer@...hat.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Dave Jones <davej@...emonkey.org.uk>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        axboe@...nel.dk, linux-block@...r.kernel.org, dm-devel@...hat.com
Subject: Re: Linux 5.10

On Mon, Dec 14 2020 at 11:02am -0500,
Mike Snitzer <snitzer@...hat.com> wrote:

> On Mon, Dec 14 2020 at 12:52am -0500,
> Greg KH <gregkh@...uxfoundation.org> wrote:
> 
> > On Mon, Dec 14, 2020 at 12:31:47AM -0500, Dave Jones wrote:
> > > On Sun, Dec 13, 2020 at 03:03:29PM -0800, Linus Torvalds wrote:
> > >  > Ok, here it is - 5.10 is tagged and pushed out.
> > >  > 
> > >  > I pretty much always wish that the last week was even calmer than it
> > >  > was, and that's true here too. There's a fair amount of fixes in here,
> > >  > including a few last-minute reverts for things that didn't get fixed,
> > >  > but nothing makes me go "we need another week".
> > > 
> > > ...
> > > 
> > >  > Mike Snitzer (1):
> > >  >       md: change mddev 'chunk_sectors' from int to unsigned
> > > 
> > > Seems to be broken.  This breaks mounting my raid6 partition:
> > > 
> > > [   87.290698] attempt to access beyond end of device
> > >                md0: rw=4096, want=13996467328, limit=6261202944
> > > [   87.293371] attempt to access beyond end of device
> > >                md0: rw=4096, want=13998564480, limit=6261202944
> > > [   87.296045] BTRFS warning (device md0): couldn't read tree root
> > > [   87.300056] BTRFS error (device md0): open_ctree failed
> > > 
> > > Reverting it goes back to the -rc7 behaviour where it mounts fine.
> > 
> > If the developer/maintainer(s) agree, I can revert this and push out a
> > 5.10.1, just let me know.
> 
> Yes, these should be reverted from 5.10 via 5.10.1:
> 
> e0910c8e4f87 dm raid: fix discard limits for raid1 and raid10
> f075cfb1dc59 md: change mddev 'chunk_sectors' from int to unsigned

Sorry, f075cfb1dc59 was my local commit id, the corresponding upstream
commit as staged by Jens is:

6ffeb1c3f82 md: change mddev 'chunk_sectors' from int to unsigned

So please revert:
6ffeb1c3f822 md: change mddev 'chunk_sectors' from int to unsigned
and then revert:
e0910c8e4f87 dm raid: fix discard limits for raid1 and raid10

Thanks,
Mike