linux-kernel - Re: commit f6be75d03c88 broke qemu-system-mips64.

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Date:	Wed, 8 Sep 2010 09:42:48 +0200
From:	Ralf Baechle <ralf@...ux-mips.org>
To:	David Daney <ddaney@...iumnetworks.com>
Cc:	Rob Landley <rob@...dley.net>, linux-kernel@...r.kernel.org,
	Chris Dearman <chris@...s.com>
Subject: Re: commit f6be75d03c88 broke qemu-system-mips64.

On Tue, Sep 07, 2010 at 09:29:28AM -0700, David Daney wrote:

> >You'll need QEMU installed.  Note that Ubuntu's qemu package is actually
> >kqemu, and doesn't support any non-x86 targets.  You need to install
> >"qemu-kvm-extras" to get _actual_ qemu.  I don't know why they broke this.
> >
> >Once you've confirmed it used to work, replace the zImage-mips64 file with a
> >vmlinux built using the attached .config and ./run-emulator.sh again.  If you
> >build f6be75d03c88 it fails, but f6be75d03c88^1 works.  If you build 2.6.35
> >but revert the f6be75d03c88 patch (all one line of it), it works.  If you don't
> >revert it, v2.6.35 is still broken.
> >
> >Rob
> 
> Has anybody tried it on a real 64-bit Malta?  Perhaps the emulator
> is broken.

There is no MIPS64 R2 core for the Malta.  I think the best evidence pointing
to an emulator issue is that the current code is working on Cavium.

  Ralf
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