linux-ext4 - Re: [GIT PULL] ext2, quota, and udf fixes for 6.6-rc1

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Date:   Tue, 17 Oct 2023 18:34:50 +0300
From:   Andy Shevchenko <andriy.shevchenko@...el.com>
To:     Jan Kara <jack@...e.cz>
Cc:     Ferry Toth <ftoth@...londelft.nl>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [GIT PULL] ext2, quota, and udf fixes for 6.6-rc1

On Tue, Oct 17, 2023 at 06:14:54PM +0300, Andy Shevchenko wrote:
> On Tue, Oct 17, 2023 at 05:50:10PM +0300, Andy Shevchenko wrote:
> > On Tue, Oct 17, 2023 at 04:42:29PM +0300, Andy Shevchenko wrote:
> > > On Tue, Oct 17, 2023 at 03:32:45PM +0200, Jan Kara wrote:
> > > > On Tue 17-10-23 14:46:20, Andy Shevchenko wrote:
> > > > > On Tue, Oct 17, 2023 at 01:32:53PM +0300, Andy Shevchenko wrote:
> > > > > > On Tue, Oct 17, 2023 at 01:29:27PM +0300, Andy Shevchenko wrote:
> > > > > > > On Tue, Oct 17, 2023 at 01:27:19PM +0300, Andy Shevchenko wrote:
> > > > > > > > On Wed, Aug 30, 2023 at 12:24:34PM +0200, Jan Kara wrote:
> > > > > > > > >   Hello Linus,

...

> > > > > > > > This merge commit (?) broke boot on Intel Merrifield.
> > > > > > > > It has earlycon enabled and only what I got is watchdog
> > > > > > > > trigger without a bit of information printed out.
> > > > > 
> > > > > Okay, seems false positive as with different configuration it
> > > > > boots. It might be related to the size of the kernel itself.
> > > > 
> > > > Ah, ok, that makes some sense.
> > > 
> > > I should have mentioned that it boots with the configuration say "A",
> > > while not with "B", where "B" = "A" + "C" and definitely the kernel
> > > and initrd sizes in the "B" case are bigger.
> > 
> > If it's a size (which is only grew from 13M->14M), it's weird.
> > 
> > Nevertheless, I reverted these in my local tree
> > 
> > 85515a7f0ae7 (HEAD -> topic/mrfld) Revert "defconfig: enable DEBUG_SPINLOCK"
> > 786e04262621 Revert "defconfig: enable DEBUG_ATOMIC_SLEEP"
> > 76ad0a0c3f2d Revert "defconfig: enable DEBUG_INFO"
> > f8090166c1be Revert "defconfig: enable DEBUG_LIST && DEBUG_OBJECTS_RCU_HEAD"
> > 
> > and it boots again! So, after this merge something affects one of this?
> > 
> > I'll continuing debugging which one is a culprit, just want to share
> > the intermediate findings.
> 
> CONFIG_DEBUG_LIST with this merge commit somehow triggers this issue.
> Any ideas?

Dropping CONFIG_QUOTA* helps as well.
So something definitely goes on in this merge commit.

-- 
With Best Regards,
Andy Shevchenko