Re: Linux 5.10

From: Mike Snitzer
Date: Mon Dec 14 2020 - 11:30:26 EST


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

> On Mon, Dec 14 2020 at 12:52am -0500,
> Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> 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