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Subject: Re: ioremap and dma cleanups and fixes for superh (2nd resend)
To:     Peter Zijlstra <peterz@infradead.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Rich Felker <dalias@libc.org>, Christoph Hellwig <hch@lst.de>,
        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Linux-sh list <linux-sh@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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From:   John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
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Message-ID: <c9648179-4f11-a3eb-fe3b-b06d9898a37f@physik.fu-berlin.de>
Date:   Thu, 16 Jul 2020 12:05:37 +0200
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Sender: linux-kernel-owner@vger.kernel.org
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Hi Peter!

On 7/16/20 11:40 AM, Peter Zijlstra wrote:
> On Wed, Jul 15, 2020 at 08:21:27PM +0200, Geert Uytterhoeven wrote:
> 
>> Oh, we actually discussed that:
>> https://lore.kernel.org/linux-mm/20191204133454.GW2844@hirez.programming.kicks-ass.net/
>> but there was no conclusion...
> 
> Urgh.. clearly that fell off the table :-(
> 
> So yes, that patch works, but as I wrote, I think it's still broken.
> Then again, that particular breakage has been there for a long time.
> 
> Ooohh.. I have another whole patch-set that fixes that across
> architectures which I forgot about too:
> 
>   https://lkml.kernel.org/r/20191211120713.360281197@infradead.org
> 
> that actually included the SH fix.
> 
> Then Aneesh got a bunch of those patches merged because he needed it for
> Power, but the rest bitrotted again.
> 
> Let me rebase/refresh the rest of that and send it out again.

Sounds good. Do you think this new patch set could fix the crash of systemd
that I observed on SH that was introduced with your previous patch?

Thanks,
Adrian

> [1] https://marc.info/?l=linux-kernel&m=159479951822677&w=2

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913