From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Liam Howlett <liam.howlett@oracle.com>
Cc: Heiko Carstens <hca@linux.ibm.com>,
Guenter Roeck <linux@roeck-us.net>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mapletree-vs-khugepaged
Date: Mon, 2 May 2022 11:10:25 +0200 [thread overview]
Message-ID: <CAMuHMdW-afrvM9KpEBSGaaLQzQSzjez7bCgtxXEp49OdcAXKhw@mail.gmail.com> (raw)
In-Reply-To: <20220429161813.oe55p4akkinjcarq@revolver>
Hi Liam,
On Sat, Apr 30, 2022 at 1:58 AM Liam Howlett <liam.howlett@oracle.com> wrote:
> * Heiko Carstens <hca@linux.ibm.com> [220429 09:19]:
> > On Fri, Apr 29, 2022 at 01:01:53PM +0000, Liam Howlett wrote:
> > > * Heiko Carstens <hca@linux.ibm.com> [220429 08:10]:
> > > > On Thu, Apr 28, 2022 at 10:20:40AM -0700, Guenter Roeck wrote:
> > > > > On Wed, Apr 27, 2022 at 03:10:45PM -0700, Andrew Morton wrote:
> > > > > > Fix mapletree for patch series "Make khugepaged collapse readonly FS THP
> > > > > > more consistent", v3.
> > > > > >
> > > > > > Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
> > > > > > Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> > > > >
> > > > > This patch causes all my sparc64 boot tests to fail. Bisect and crash logs
> > > > > attached.
> > > > >
> > > > > Guenter
> > ...
> > > >
> > > > FWIW, same on s390 - linux-next is completely broken. Note: I didn't
> > > > bisect, but given that the call trace, and even the failing address
> > > > match, I'm quite confident it is the same reason.
> > >
> > > This is worth a lot to me. Thanks for the report and the testing.
> >
> > Not sure if it is of any relevance, and you are probably aware if it
> > anyway, but both sparc64 and s390 are big endian; and there was no
> > report from little endian architectures yet.
>
> I was aware they are big endian, but thanks - the more info the better.
> sparc64 is technically bi-endian but I think everyone runs it in big
Sparc64 is big-endian. It has support for accessing little endian data
in memory, but that's merely an optimization.
> endian mode? Is alpha the same? There was a report of alpha having
Alpha is little-endian.
> issues too. m68k is also big endian - but also nommu, so that makes
> testing difficult.
M68k exists with and without MMU.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2022-05-02 9:10 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-28 17:20 [PATCH] mapletree-vs-khugepaged Guenter Roeck
2022-04-28 19:27 ` Liam Howlett
2022-04-29 12:09 ` Heiko Carstens
2022-04-29 13:01 ` Liam Howlett
2022-04-29 13:10 ` Heiko Carstens
2022-04-29 16:18 ` Liam Howlett
2022-05-02 9:10 ` Geert Uytterhoeven [this message]
2022-05-13 14:46 ` Sven Schnelle
2022-05-13 14:51 ` Sven Schnelle
2022-05-13 16:49 ` Andrew Morton
2022-05-13 17:00 ` Liam Howlett
2022-05-15 20:02 ` Sven Schnelle
2022-05-16 14:02 ` Liam Howlett
2022-05-16 15:37 ` Sven Schnelle
2022-05-16 15:50 ` Liam Howlett
2022-05-16 17:10 ` Sven Schnelle
2022-05-17 14:52 ` Liam Howlett
2022-05-17 11:53 ` Heiko Carstens
2022-05-17 12:26 ` Heiko Carstens
2022-05-17 13:23 ` Guenter Roeck
2022-05-17 15:03 ` Liam Howlett
2022-05-17 16:28 ` Guenter Roeck
2022-05-17 20:38 ` Liam Howlett
2022-05-17 14:32 ` Guenter Roeck
2022-05-19 14:35 ` Liam Howlett
2022-05-19 21:41 ` Guenter Roeck
2022-05-19 22:38 ` Liam Howlett
2022-05-30 17:38 ` Liam Howlett
2022-05-31 18:56 ` Liam Howlett
2022-06-01 19:06 ` Liam Howlett
2022-05-13 17:28 ` Guenter Roeck
2022-05-13 20:12 ` Yang Shi
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