From: Tanya Brokhman <tlinder@codeaurora.org>
To: dedekind1@gmail.com
Cc: linux-mtd@lists.infradead.org, richard@nod.at,
linux-arm-msm@vger.kernel.org, jlauruhn@micron.com
Subject: Re: [RFC/PATCH 0/5 v2] mtd:ubi: Read disturb and Data retention handling
Date: Sun, 23 Nov 2014 10:13:10 +0200 [thread overview]
Message-ID: <54719716.9010100@codeaurora.org> (raw)
In-Reply-To: <1415885788.22887.326.camel@sauron.fi.intel.com>
Hi Artem/Richard
On 11/13/2014 3:36 PM, Artem Bityutskiy wrote:
>
> I explained how I see it above in this e-mail. In short: read all data
> often enough ("enough" is defined by your product), and you are done.
> All "NAND effects" lead to bit-flips, you fix bit-flips faster than they
> become hard errors, and you are done.
>
We decided to drop this solution and stay with "force scrub" all PEBs
from time to time, triggered from userspace.
Thank you all for your inputs and comments! It was very helpful in
coming to this decision.
Thanks,
Tanya Brokhman
--
Qualcomm Israel, on behalf of Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
WARNING: multiple messages have this Message-ID (diff)
From: Tanya Brokhman <tlinder@codeaurora.org>
To: dedekind1@gmail.com
Cc: richard@nod.at, jlauruhn@micron.com,
linux-mtd@lists.infradead.org, linux-arm-msm@vger.kernel.org
Subject: Re: [RFC/PATCH 0/5 v2] mtd:ubi: Read disturb and Data retention handling
Date: Sun, 23 Nov 2014 10:13:10 +0200 [thread overview]
Message-ID: <54719716.9010100@codeaurora.org> (raw)
In-Reply-To: <1415885788.22887.326.camel@sauron.fi.intel.com>
Hi Artem/Richard
On 11/13/2014 3:36 PM, Artem Bityutskiy wrote:
>
> I explained how I see it above in this e-mail. In short: read all data
> often enough ("enough" is defined by your product), and you are done.
> All "NAND effects" lead to bit-flips, you fix bit-flips faster than they
> become hard errors, and you are done.
>
We decided to drop this solution and stay with "force scrub" all PEBs
from time to time, triggered from userspace.
Thank you all for your inputs and comments! It was very helpful in
coming to this decision.
Thanks,
Tanya Brokhman
--
Qualcomm Israel, on behalf of Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2014-11-23 8:13 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-26 13:49 [RFC/PATCH 0/5 v2] mtd:ubi: Read disturb and Data retention handling Tanya Brokhman
2014-10-26 13:49 ` Tanya Brokhman
2014-10-26 20:39 ` Richard Weinberger
2014-10-26 20:39 ` Richard Weinberger
2014-10-27 8:41 ` Tanya Brokhman
2014-10-27 8:41 ` Tanya Brokhman
2014-10-27 8:56 ` Richard Weinberger
2014-10-27 8:56 ` Richard Weinberger
2014-10-29 11:03 ` Tanya Brokhman
2014-10-29 12:00 ` Richard Weinberger
2014-10-31 13:12 ` Tanya Brokhman
2014-10-31 15:34 ` Richard Weinberger
2014-10-31 15:39 ` Richard Weinberger
2014-10-31 22:55 ` Jeff Lauruhn (jlauruhn)
2014-11-02 13:30 ` Tanya Brokhman
2014-11-07 9:21 ` Artem Bityutskiy
2014-11-07 9:21 ` Artem Bityutskiy
2014-11-02 13:25 ` Tanya Brokhman
2014-11-06 8:07 ` Artem Bityutskiy
2014-11-06 8:07 ` Artem Bityutskiy
2014-11-06 12:16 ` Tanya Brokhman
2014-11-07 8:55 ` Artem Bityutskiy
2014-11-07 8:58 ` Artem Bityutskiy
2014-11-11 20:36 ` Tanya Brokhman
2014-11-11 20:36 ` Tanya Brokhman
2014-11-11 21:39 ` Richard Weinberger
2014-11-11 21:39 ` Richard Weinberger
2014-11-12 12:07 ` Artem Bityutskiy
2014-11-12 12:07 ` Artem Bityutskiy
2014-11-12 13:01 ` Richard Weinberger
2014-11-12 13:01 ` Richard Weinberger
2014-11-12 13:32 ` Artem Bityutskiy
2014-11-12 13:32 ` Artem Bityutskiy
2014-11-12 15:37 ` Richard Weinberger
2014-11-12 15:37 ` Richard Weinberger
2014-11-12 11:55 ` Artem Bityutskiy
2014-11-12 11:55 ` Artem Bityutskiy
2014-11-13 12:13 ` Tanya Brokhman
2014-11-13 12:13 ` Tanya Brokhman
2014-11-13 13:36 ` Artem Bityutskiy
2014-11-13 13:36 ` Artem Bityutskiy
2014-11-23 8:13 ` Tanya Brokhman [this message]
2014-11-23 8:13 ` Tanya Brokhman
2014-11-02 13:23 ` Tanya Brokhman
2014-11-02 13:54 ` Richard Weinberger
2014-11-02 14:12 ` Tanya Brokhman
2014-11-02 17:02 ` Richard Weinberger
2014-11-02 17:18 ` Tanya Brokhman
[not found] <201411101307.03225.jbe@pengutronix.de>
2014-11-10 12:35 ` Richard Weinberger
2014-11-10 13:12 ` Juergen Borleis
2014-11-11 9:23 ` Richard Weinberger
2014-11-10 13:13 ` Ricard Wanderlof
2014-11-10 13:42 ` Juergen Borleis
2014-11-10 13:52 ` Ricard Wanderlof
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