From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: Richard Weinberger <richard@nod.at>
Cc: Sascha Hauer <s.hauer@pengutronix.de>,
linux-mtd@lists.infradead.org, kernel@pengutronix.de,
Daniel Walter <dwalter@sigma-star.at>
Subject: Re: Pass -EUCLEN to userspace?
Date: Fri, 22 Apr 2016 20:39:12 +0200 [thread overview]
Message-ID: <20160422203912.0d839395@bbrezillon> (raw)
In-Reply-To: <571A6B64.9000600@nod.at>
On Fri, 22 Apr 2016 20:20:20 +0200
Richard Weinberger <richard@nod.at> wrote:
> Am 22.04.2016 um 18:11 schrieb Boris Brezillon:
> >> Sasha, what exactly is your use case and why is the UBI approach not sufficient for you?
> >> On Linux MTD access should only happen through UBI and UBOOT/SPL partitions stay untouched.
> >
> > Fair enough. So all we'll need is a way to retrieve the maximum number
> > of bitflips for a given block, so that the userspace deamon can
> > periodically read the SPL and bootloader blocks and decide to scrub
> > those blocks if the number of bitflips exceed the threshold.
>
> How can we scrub non-UBI blocks in a power cut safe way?
> Unless we have a backup SPL/booloader.
Of course this assumes you have backup partitions.
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-04-22 18:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-20 13:25 Pass -EUCLEN to userspace? Sascha Hauer
2016-04-22 15:24 ` Boris Brezillon
2016-04-22 15:28 ` Boris Brezillon
2016-04-22 15:48 ` Richard Weinberger
2016-04-22 16:11 ` Boris Brezillon
2016-04-22 18:20 ` Richard Weinberger
2016-04-22 18:39 ` Boris Brezillon [this message]
2016-04-25 5:28 ` Sascha Hauer
2016-04-25 7:50 ` Boris Brezillon
2016-04-25 8:22 ` Sascha Hauer
2016-04-25 8:40 ` Boris Brezillon
2016-04-25 9:14 ` Sascha Hauer
2016-04-25 9:26 ` Boris Brezillon
2016-04-25 14:11 ` Boris Brezillon
2016-04-26 7:13 ` Pass -EUCLEAN " Sascha Hauer
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