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From: Richard Weinberger <richard@nod.at>
To: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
	Tudor Ambarus <Tudor.Ambarus@microchip.com>,
	Steve deRosier <derosier@gmail.com>,
	"Zoltan Szubbocsev, zszubbocsev" <zszubbocsev@micron.com>,
	linux-mtd <linux-mtd@lists.infradead.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	tglx <tglx@linutronix.de>,
	Piotr Wojtaszczyk <WojtaszczykP@cumminsallison.com>,
	"Bean Huo, beanhuo" <beanhuo@micron.com>
Subject: Re: [EXT] [PATCH v2 3/3] mtd: rawnand: micron: Address the shallow erase issue
Date: Wed, 6 May 2020 22:59:39 +0200 (CEST)	[thread overview]
Message-ID: <130342272.192940.1588798779898.JavaMail.zimbra@nod.at> (raw)
In-Reply-To: <20200506224016.2d48d0b4@collabora.com>

----- Ursprüngliche Mail -----
>> UBI scans only headers during attach. If you don't touch these, no way.
> 
> Sorry, I misunderstood what you meant by payload. UBI should schedule
> the PEB for erase if the EC/VID header is corrupted.

UBI even tries to recover from such a situation. If only the EC header is bad,
it will create a new one. Only of the VID header is bad/missing and the payload
is corrupted (ECC errors or bit-flips) it will erase it.

A missing VID header plus good payload will cause UBI to stop attaching since it
violates the IO model.

Thanks,
//richard

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2020-05-06 21:00 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-03 11:40 [PATCH v2 0/3] Fix proposal for the Micron shallow erase issue Miquel Raynal
2020-05-03 11:40 ` [PATCH v2 1/3] mtd: rawnand: Add the nand_chip->erase hook Miquel Raynal
2020-05-03 15:01   ` Boris Brezillon
2020-05-03 11:40 ` [PATCH v2 2/3] mtd: rawnand: Add the nand_chip->write_oob hook Miquel Raynal
2020-05-03 15:09   ` Boris Brezillon
2020-05-03 17:02     ` Miquel Raynal
2020-05-03 11:40 ` [PATCH v2 3/3] mtd: rawnand: micron: Address the shallow erase issue Miquel Raynal
2020-05-03 16:10   ` Steve deRosier
2020-05-03 16:34     ` Boris Brezillon
2020-05-03 16:36     ` Miquel Raynal
2020-05-03 19:57       ` Steve deRosier
2020-05-06  8:37         ` [EXT] " Bean Huo (beanhuo)
2020-05-06  8:28   ` [EXT] " Bean Huo (beanhuo)
2020-05-06  8:45     ` Boris Brezillon
2020-05-06 15:50       ` Bean Huo (beanhuo)
2020-05-06 16:04         ` Boris Brezillon
2020-05-06 16:09           ` Bean Huo (beanhuo)
2020-05-06 16:29             ` Boris Brezillon
2020-05-06 16:50               ` Bean Huo (beanhuo)
2020-05-06 18:44             ` Richard Weinberger
2020-05-06 19:01               ` Boris Brezillon
2020-05-06 19:23                 ` Richard Weinberger
2020-05-06 20:40                   ` Boris Brezillon
2020-05-06 20:59                     ` Richard Weinberger [this message]
2020-05-06 21:11                       ` Boris Brezillon
2020-05-07  9:28                         ` Bean Huo (beanhuo)
2020-05-07  9:40                           ` Boris Brezillon
2020-05-07  9:28                       ` Bean Huo (beanhuo)
2020-05-07  9:30                         ` Boris Brezillon
2020-05-07 10:02                           ` Richard Weinberger
2020-05-07 12:20                         ` Richard Weinberger

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