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From: Andrew Morton <akpm@linux-foundation.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	Dmitry Vyukov <dvyukov@google.com>,
	Oleg Nesterov <oleg@redhat.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Stephen Rothwell <sfr@canb.auug.org.au>
Subject: Re: [2/2] mm: Drop unneeded ->vm_ops checks
Date: Wed, 11 Jul 2018 15:40:27 -0700	[thread overview]
Message-ID: <20180711154027.66dd158b11ab144f2f776221@linux-foundation.org> (raw)
In-Reply-To: <20180711221742.GA9360@roeck-us.net>

On Wed, 11 Jul 2018 15:17:42 -0700 Guenter Roeck <linux@roeck-us.net> wrote:

> On Tue, Jul 10, 2018 at 04:48:21PM +0300, Kirill A. Shutemov wrote:
> > We now have all VMAs with ->vm_ops set and don't need to check it for
> > NULL everywhere.
> > 
> > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
> 
> This patch causes two of my qemu tests to fail:
> 	arm:mps2-an385:mps2_defconfig:mps2-an385
> 	xtensa:de212:kc705-nommu:nommu_kc705_defconfig
> 
> Both are nommu configurations.
> 
> Reverting the patch fixes the problem. Bisect log is attached for reference.

Thanks.  And there's the /dev/ion sysbot bug report.

mm-drop-unneeded-vm_ops-checks.patch needs some more work - let's drop it
for now.

      reply	other threads:[~2018-07-11 22:40 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-10 13:48 [PATCH 0/2] Fix crash due to vma_is_anonymous() false-positives Kirill A. Shutemov
2018-07-10 13:48 ` [PATCH 1/2] mm: Fix " Kirill A. Shutemov
2018-07-10 20:48   ` Andrew Morton
2018-07-11 12:15     ` Kirill A. Shutemov
2018-07-16 13:30     ` Michal Hocko
2018-07-16 14:04       ` Kirill A. Shutemov
2018-07-16 14:22         ` Michal Hocko
2018-07-16 14:47           ` Kirill A. Shutemov
2018-07-16 17:40             ` Michal Hocko
2018-07-16 20:38               ` Kirill A. Shutemov
2018-07-17  9:00                 ` Michal Hocko
2018-07-17  9:30                   ` Kirill A. Shutemov
2018-07-17 10:44                     ` Michal Hocko
2018-07-10 13:48 ` [PATCH 2/2] mm: Drop unneeded ->vm_ops checks Kirill A. Shutemov
2018-07-11 22:17   ` [2/2] " Guenter Roeck
2018-07-11 22:40     ` Andrew Morton [this message]

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