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SubjectRe: 2.6.9 kexec patch causes kernel panic during reboot on x86-64
"H. J. Lu" <hjl@lucon.org> wrote:
>
> 2.6.9 kexec patch adds a call to find_isa_irq_pin in disable_IO_APIC.
> But find_isa_irq_pin is marked __init on x86-64, which leads to
> kernel panic. This patch should fix it.
>
>
> H.J.
> --- linux-2.6.8/arch/x86_64/kernel/io_apic.c.init 2004-10-14 16:21:44.000000000 -0700
> +++ linux-2.6.8/arch/x86_64/kernel/io_apic.c 2004-10-15 14:34:53.615495099 -0700
> @@ -332,7 +332,7 @@ static int __init find_irq_entry(int api
> /*
> * Find the pin to which IRQ[irq] (ISA) is connected
> */
> -static int __init find_isa_irq_pin(int irq, int type)
> +static int find_isa_irq_pin(int irq, int type)
> {

Yup, there are several such fixups needed. See
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/broken-out/assign_irq_vector-section-fix.patch.

If you're testing kexec you might be better off using 2.6.9-rc4-mm1 (minus
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/broken-out/optimize-profile-path-slightly.patch)
because it has the latest kexec version (it had better be!) and whatever
fixups people have found against it.

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