linux-kernel - Re: [PATCH 00/14] alpha: cleanups for 6.10

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Date: Mon, 06 May 2024 12:11:10 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Michael Cree" <mcree@...on.net.nz>
Cc: "Matt Turner" <mattst88@...il.com>, "Arnd Bergmann" <arnd@...nel.org>,
 linux-alpha@...r.kernel.org,
 "Richard Henderson" <richard.henderson@...aro.org>,
 "Ivan Kokshaysky" <ink@...assic.park.msu.ru>,
 "Alexander Viro" <viro@...iv.linux.org.uk>, "Marc Zyngier" <maz@...nel.org>,
 "Linus Torvalds" <torvalds@...ux-foundation.org>,
 "Paul E. McKenney" <paulmck@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/14] alpha: cleanups for 6.10

On Mon, May 6, 2024, at 11:16, Michael Cree wrote:
> On Fri, May 03, 2024 at 10:15:10PM +0200, Arnd Bergmann wrote:
>> On Fri, May 3, 2024, at 18:06, Matt Turner wrote:
>> > On Fri, May 3, 2024 at 4:12 AM Arnd Bergmann <arnd@...nel.org> wrote:
>> >>
>> >> Al Viro did another series for alpha to address all the known build
>> >> issues. I rebased his patches without any further changes and included
>> >> it as a baseline for my work here to avoid conflicts.
>> 
>> I've pushed out the series with the additional Acks to
>> https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git/log/?h=alpha-cleanup-6.9
>> and merged it into the main asm-generic branch for 6.10.
>> 
>> Can you give this a quick test on one of your machines to make
>> sure I didn't introduce a stupid regression somewhere?
>
> I built a dp264 specific kernel and its working fine on an XP1000
> (EV67 arch).  Just built a generic kernel (as that's probably a more
> important test) and that is also working fine on the XP1000.

Thanks a lot for testing!

> I also built a titan specific kernel to test on an ES45 (SMP EV68
> arch) but that OOPSes early in the boot process with a kernel null
> pointer access.  I suspect that has nothing to do with your patches
> as I have a recollection that I have seen that OOPS before.

Ok

> So I tried the same generic kernel that I have running on the XP1000
> but that fails to unpack at the initial boot stage (!) with:

Just to be sure: this is not a regression from my patches either,
right? I would expect that any EV6 (or later) target specific
kernel didn't change much at all from my patches, while the
generic kernel changing from -march=ev4 to -march=ev56 is
certainly meant to be different (in a good way, with smaller
size and faster execution).

     Arnd