linux-kernel - Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu

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Message-ID: <a188f905-bb08-db98-0b8a-e31bec1dfa31@physik.fu-berlin.de>
Date:   Fri, 6 Dec 2019 14:38:27 +0100
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Will Deacon <will.deacon@....com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicholas Piggin <npiggin@...il.com>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux MM <linux-mm@...ck.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Russell King <linux@...linux.org.uk>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Rik van Riel <riel@...riel.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Linux-sh list <linux-sh@...r.kernel.org>
Subject: Re: [PATCH v6 10/18] sh/tlb: Convert SH to generic mmu_gather

Hi!

On 12/5/19 11:56 PM, Guenter Roeck wrote:
>> I have to admit, I have been very lazy with kernel updates. I have been
>> planning to upgrade to a much more recent release on my boards for a while
>> now, I have just been postponing it since the machines run very stable
>> with the current kernel I am using.
>>
> 
> Hey, if you write a qemu emulation, I'll be happy to run it on a regular
> basis :-)

There is working SH emulation in QEMU. I have been wanting to prepare a
current Debian/sh4 test image for that purpose for a while now.

For the time being, you can use the image by Aurelien Jarno:

> https://people.debian.org/~aurel32/qemu/sh4/

> Problem is really that the architecture doesn't get as much attention as
> it needs. The backtrace pointed to by Rob has been seen for a long time,
> but either there is no one with the knowledge to fix it, or they are all
> busy with other stuff.

I fully agree. I'm mostly busy with the userland stuff, i.e. Debian packages
for sh4 and not so much with the kernel.

Adrian

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