From mboxrd@z Thu Jan  1 00:00:00 1970
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Fri, 30 Oct 2015 14:19:49 +0000
Subject: Re: [PATCH v2] i2c: rcar: make sure clocks are on when doing hw init
Message-Id: <2651660.Ax9kPbc9xQ@avalon>
List-Id: <linux-sh.vger.kernel.org>
References: <1446158791-29682-1-git-send-email-wsa@the-dreams.de> <1726774.W1OrN54TP1@avalon> <CAMuHMdV0_ej3z1EQ=1Q+XRc53CX5H=8Oa3sNjUwkfO62KfTpHA@mail.gmail.com>
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To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Wolfram Sang <wsa@the-dreams.de>, Linux I2C <linux-i2c@vger.kernel.org>, Linux-sh list <linux-sh@vger.kernel.org>, Magnus Damm <magnus.damm@gmail.com>, Simon Horman <horms@verge.net.au>, Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Hi Geert,

On Friday 30 October 2015 09:16:40 Geert Uytterhoeven wrote:
> On Fri, Oct 30, 2015 at 5:35 AM, Laurent Pinchart wrote:
> > [    9.641533] Unable to handle kernel paging request at virtual address
> > ffffffff
> > [    9.648927] pgd =3D eb2adf40
> > [    9.651695] [ffffffff] *pgd=80000040007003, *pmdkfde003,
> > *pte=00000000
> > [    9.658579] Internal error: Oops: a07 [#1] SMP ARM
> > [    9.663475] Modules linked in: rcar_thermal adv7180(+) phy_rcar_gen2
> > soundcore udc_core
> > [    9.671719] CPU: 0 PID: 552 Comm: udevd Not tainted 4.3.0-rc7-07332-
> > gfb990fd3ff96 #114
> > [    9.679811] Hardware name: Generic R8A7791 (Flattened Device Tree)
> > [    9.686125] task: eb11f400 ti: ea92e000 task.ti: ea92e000
> > [    9.691653] PC is at rcar_i2c_irq+0xd4/0x3e4
> > [    9.696018] LR is at rcar_i2c_write+0x28/0x38
> > [    9.700471] pc : [<c0324588>]    lr : [<c0323cf0>]    psr: 80000193
> >=20
> > This only occurred once, I don't know how to reproduce it.
>=20
> Do you still have the kernel binary, so you can see where exactly the cra=
sh
> happened?

I haven't kept it, but I'm pretty sure I was using renesas-devel-20151026-
v4.3-rc7 without any additional patch applied.

--=20
Regards,

Laurent Pinchart