linux-kernel - Re: problems with mtp , better to make a command-line option to can switch off mtp device search on booting

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Date:	Mon, 13 Jun 2011 16:17:04 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	werner <w.landgraf@...ru>,
	David Woodhouse <David.Woodhouse@...el.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: problems with mtp , better to make a command-line option to can
 switch off mtp device search on booting

So I still think you're crazy to compile in MTD support at all, but
hey, I do agree that it is supposed to work.

The "L440GX flash mapping failed" message isn't new, and I doubt that
that particular driver is the problem. Can you try to narrow it down
to _which_ MTD driver causes problems? Enable MTD again, and try to
enable about half the devices to "bisect" the issue.

                       Linus

On Mon, Jun 13, 2011 at 4:06 PM, werner <w.landgraf@...ru> wrote:
> I get yesterday an acer laptop with big problems to install Linux
>
> booting stopped with error messages like:
>
> physmap_flash.0 failed claim ressource 0
>
> L440GX flash mapping failed to find PIIX4 ISA bridge, cannot continue
>
> Then the computer stopped, but not crashed, the cursor stopped to blink, but
> reboot
> with CTRL-ALT-DEL didn't work, one had to press the reboot button
>
> I recompiled the kernel with all MTP things switched off, and that booted.
>
> However, normally it should be compiled everything in the kernel, and the
> kernel
> during booting should manage it to see and to use what is existent in the
> computer
> of the user, without to stick or to crash.
>
> Probably that is an error already sine time in the kernel, not a recent
> regression.
>
> Better to make a command-line option to can switch off mtp device search on
> booting
>
> wl
>
>
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