linux-kernel - Re: [PATCH v2] [RESEND] Handle instruction cache maintenance fault properly

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Date:	Fri, 14 May 2010 14:29:40 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	Russell King <linux@....linux.org.uk>,
	Siarhei Siamashka <siarhei.siamashka@...ia.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Aaro Koskinen <aaro.koskinen@...ia.com>,
	Valdis.Kletnieks@...edu
Subject: Re: [PATCH v2] [RESEND] Handle instruction cache maintenance fault
 properly

On Tue, 2010-05-11 at 11:33 +0100, Kirill A. Shutemov wrote:
> diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
> index 9d40c34..7f193ea 100644
> --- a/arch/arm/mm/fault.c
> +++ b/arch/arm/mm/fault.c
> @@ -463,7 +463,12 @@ static struct fsr_info {
>         { do_bad,               SIGILL,  BUS_ADRALN,    "alignment exception"              },
>         { do_bad,               SIGKILL, 0,             "terminal exception"               },
>         { do_bad,               SIGILL,  BUS_ADRALN,    "alignment exception"              },
> +/* Do we need runtime check ? */
> +#if __LINUX_ARM_ARCH__ < 6
>         { do_bad,               SIGBUS,  0,             "external abort on linefetch"      },
> +#else
> +       { do_translation_fault, SIGSEGV, SEGV_MAPPER,   "I-cache maintenance
> fault"     },
> +#endif

Apart from line wrapping, it should be SEGV_MAPERR above.

-- 
Catalin

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