From: Geert Uytterhoeven <geert@linux-m68k.org>
To: schmitz <schmitz@biophys.uni-duesseldorf.de>
Cc: Michael Schmitz <schmitzmic@gmail.com>,
Linux/m68k <linux-m68k@vger.kernel.org>,
Debian m68k <debian-68k@lists.debian.org>,
Michael Schmitz <schmitz@debian.org>
Subject: Re: [PATCH 1/2] m68k/atari - stram: alloc ST-RAM pool even if kernel not in ST-RAM
Date: Sun, 23 Mar 2014 21:02:42 +0100 [thread overview]
Message-ID: <CAMuHMdVB0uZYb9QQyDGumRev_0wu=iAgYLTqQyBAeOSc0apPHQ@mail.gmail.com> (raw)
In-Reply-To: <532CE84A.8090305@biophys.uni-duesseldorf.de>
Hi Michael,
On Sat, Mar 22, 2014 at 2:32 AM, schmitz
<schmitz@biophys.uni-duesseldorf.de> wrote:
>>>> That's not true. E.g. I/O memory is never mapped by mem_init().
>>>>
>>>
>>> Why, then, does the ioremap() of ST-RAM fail? Because the physical
>>> address
>>> is lower than the lowest currently mapped physical address?
>>
>> I don't know. How does it fail?
>
> Example:
>
> Unable to handle kernel access at virtual address 5f435059
> Oops: 00000000
> Modules linked in:
> PC: [<00089552>] kmem_cache_alloc+0x12/0x9a
> SR: 2700 SP: 0029dec0 a2: 002a42d8
> d0: 000080d0 d1: 00000013 d2: 000080d0 d3: 0007fe3c
> d4: 00000001 d5: 000000d0 a0: 5f435055 a1: 002a75ee
This may be too early in the boot process to call ioremap().
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:[~2014-03-23 20:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 7:23 [PATCH 1/2] m68k/atari - stram: alloc ST-RAM pool even if kernel not in ST-RAM Michael Schmitz
2014-03-19 7:23 ` [PATCH 2/2] m68k/atari - atafb: convert allocation of fb ram to new interface Michael Schmitz
2014-03-19 8:01 ` Geert Uytterhoeven
2014-03-20 8:17 ` schmitz
2014-03-20 8:33 ` Geert Uytterhoeven
2014-03-22 1:28 ` schmitz
2014-03-22 7:36 ` schmitz
2014-03-19 7:51 ` [PATCH 1/2] m68k/atari - stram: alloc ST-RAM pool even if kernel not in ST-RAM Geert Uytterhoeven
2014-03-20 8:23 ` schmitz
2014-03-20 8:35 ` Geert Uytterhoeven
2014-03-22 1:32 ` schmitz
2014-03-23 20:02 ` Geert Uytterhoeven [this message]
2014-03-19 8:18 ` Andreas Schwab
2014-03-20 6:35 ` Patrice Mandin
2014-03-22 8:47 ` [PATCH 0/2] m68k/atari - make atafb work with kernel loaded to FastRAM Michael Schmitz
2014-03-23 0:28 ` schmitz
2014-03-22 8:47 ` [PATCH 1/2] m68k/atari - stram: alloc ST-RAM pool even if kernel not in ST-RAM Michael Schmitz
2014-03-22 8:47 ` [PATCH 2/2] m68k/atari - atafb: convert allocation of fb ram to new interface Michael Schmitz
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