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Date: Tue, 23 Jun 2009 16:47:49 +0200
Message-ID: <8db1092f0906230747j1bcfe041r11bd0ffbeaa8e41a@mail.gmail.com>
Subject: Re: 2.6.30-git(16 and 17) system hangs after resume from suspend to 
	disk, mce related?
From: Maciej Rutecki <maciej.rutecki@gmail.com>
To: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Andi Kleen <ak@linux.intel.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       "H. Peter Anvin" <hpa@zytor.com>, "Rafael J. Wysocki" <rjw@sisk.pl>
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2009/6/23 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>:

>
> Maciej, could you try this patch?

Tested in 2 systems (for 17 and 30 minutes). Works without any
problems. Thanks for patch!

>
> ===
> [PATCH] x86: Fix mce resume on 32bit
>
> Calling mcheck_init() on resume is required only with CONFIG_X86_OLD_MCE=y.
>
> Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
> ---
>  arch/x86/power/cpu.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
> index d277ef1..b3d20b9 100644
> --- a/arch/x86/power/cpu.c
> +++ b/arch/x86/power/cpu.c
> @@ -244,7 +244,7 @@ static void __restore_processor_state(struct saved_context *ctxt)
>        do_fpu_end();
>        mtrr_ap_init();
>
> -#ifdef CONFIG_X86_32
> +#ifdef CONFIG_X86_OLD_MCE
>        mcheck_init(&boot_cpu_data);
>  #endif
>  }

Tested-by Maciej Rutecki <maciej.rutecki@gmail.com>


-- 
Maciej Rutecki
http://www.maciek.unixy.pl