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SubjectRe: next-0704: x86_64 panics on booting

* Alexander Beregalov <a.beregalov@gmail.com> wrote:

> Hi
>
>
> Booting the kernel.
>
> Kernel alive
> Kernel really alive
> PANIC: early exception 0e rip 10:ffffffff80604f47 error 2 cr2 ffffffffff300000
>
> It is x86_64 SMP (opteron).

does the patch below fix it?

Ingo

-------------->
commit 181b3601a1a7d2ac3ace6b23cb3204450a4f9a27
Author: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Sun Jun 29 20:02:44 2008 -0700

x86: setup_arch() && early_ioremap_init()

Looks like the setup.c unification missed the early_ioremap init from
the early_ioremap unification. Unconditionally call early_ioremap_init().

needed for "x86/paravirt: groundwork for 64-bit Xen support".

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Mark McLoughlin <markmc@redhat.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index fb318ed..caec79f 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -523,12 +523,13 @@ void __init setup_arch(char **cmdline_p)
memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
pre_setup_arch_hook();
early_cpu_init();
- early_ioremap_init();
reserve_setup_data();
#else
printk(KERN_INFO "Command line: %s\n", boot_command_line);
#endif

+ early_ioremap_init();
+
ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
screen_info = boot_params.screen_info;
edid_info = boot_params.edid_info;


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