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From: Borislav Petkov <bp@alien8.de>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, x86@kernel.org
Subject: Re: [RFC PATCH 0/3] Machine check recovery when kernel accesses poison
Date: Wed, 11 Nov 2015 23:28:47 +0100	[thread overview]
Message-ID: <20151111222847.GM22512@pd.tnic> (raw)
In-Reply-To: <20151111214803.GA11052@agluck-desk.sc.intel.com>

On Wed, Nov 11, 2015 at 01:48:04PM -0800, Luck, Tony wrote:
> No flag. We can search MCi_ADDR across the ranges to see whether this
> was a normal RAM error on non-volatile. But that doesn't make this patch
> moot. We still need to change the return address to go to the fixup code
> instead of back to the place where we hit the error.

Why?

If you know that it is in the nvdimm range, you can grade the error with
lower severity...

Or do you mean that without the exception table we'll return back to the
insn causing the error and loop indefinitely this way?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.

  reply	other threads:[~2015-11-11 22:28 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-09 18:26 [RFC PATCH 0/3] Machine check recovery when kernel accesses poison Tony Luck
2015-11-06 20:57 ` [PATCH 1/3] x86, ras: Add new infrastructure for machine check fixup tables Tony Luck
2015-11-10 11:21   ` Borislav Petkov
2015-11-10 22:05     ` Luck, Tony
2015-11-12  4:14   ` Andy Lutomirski
2015-11-12 19:44     ` Luck, Tony
2015-11-12 20:04       ` Andy Lutomirski
2015-11-12 21:17         ` Luck, Tony
2015-11-06 21:01 ` [PATCH 2/3] x86, ras: Extend machine check recovery code to annotated ring0 areas Tony Luck
2015-11-10 11:21   ` Borislav Petkov
2015-11-10 22:11     ` Luck, Tony
2015-11-11 11:01       ` Borislav Petkov
2015-11-12  4:19   ` Andy Lutomirski
2015-11-12 19:55     ` Luck, Tony
2015-11-06 21:08 ` [PATCH 3/3] x86, ras: Add mcsafe_memcpy() function to recover from machine checks Tony Luck
2015-11-12  7:53   ` Ingo Molnar
2015-11-12 20:01     ` Luck, Tony
2015-11-27 10:16       ` Ingo Molnar
2015-12-08 21:30         ` Dan Williams
2015-12-08 22:08           ` Luck, Tony
2015-12-08 22:08             ` Luck, Tony
2015-12-14  9:55           ` Ingo Molnar
2015-11-09 18:48 ` [RFC PATCH 0/3] Machine check recovery when kernel accesses poison Tony Luck
2015-11-10 11:21 ` Borislav Petkov
2015-11-10 21:55   ` Luck, Tony
2015-11-11 20:41     ` Borislav Petkov
2015-11-11 21:48       ` Luck, Tony
2015-11-11 22:28         ` Borislav Petkov [this message]
2015-11-11 22:32           ` Luck, Tony

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