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From: Richard Weinberger <richard@nod.at>
To: "DHANAPAL, GNANACHANDRAN (G.)" <gdhanapa@visteon.com>
Cc: "CN, Aananth (A.A.)" <caananth@visteon.com>,
	"Gunasundar, Balamanikandan (B.)" <bgunasun@visteon.com>,
	"Babu, Viswanathan (V.)" <vbabu3@visteon.com>,
	"dedekind1@gmail.com" <dedekind1@gmail.com>,
	"adrian.hunter@intel.com" <adrian.hunter@intel.com>,
	"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
	"gnanachandran@gmail.com" <gnanachandran@gmail.com>
Subject: Re: UBIFS Index Node Corruption - Invalid Key Type
Date: Fri, 13 May 2016 15:54:10 +0200	[thread overview]
Message-ID: <5735DC82.2010309@nod.at> (raw)
In-Reply-To: <20160513095004.GA6195@visteon-gnana>

Am 13.05.2016 um 11:40 schrieb DHANAPAL, GNANACHANDRAN (G.):
> Richard,
> 
> I believe CRC value for a node  is calculated in RAM before writing the node in NAND. 
> In this case, node CRC and calculated CRC are matching. so Will there be possibility 
> for corrupting key type area (32 bits) and keeping others intacted. or any other 
> possibility for node getting corrupted.

I have to correct myself, the branches of an index node are covered by
the node header CRC.
This makes the whole picture more strange.

You said you're facing the same issue on another unit.
Is the corruption really the same? Bad key type 5?

Thanks,
//richard

  reply	other threads:[~2016-05-13 13:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-10 12:14 UBIFS Index Node Corruption - Invalid Key Type DHANAPAL, GNANACHANDRAN (G.)
2016-05-10 13:58 ` Richard Weinberger
2016-05-10 14:49   ` DHANAPAL, GNANACHANDRAN (G.)
2016-05-10 16:23     ` Richard Weinberger
2016-05-10 16:48     ` Richard Weinberger
     [not found]       ` <20160511065223.GA22220@visteon-gnana>
2016-05-11  7:29         ` DHANAPAL, GNANACHANDRAN (G.)
2016-05-11  9:22           ` Richard Weinberger
2016-05-11 11:16             ` DHANAPAL, GNANACHANDRAN (G.)
2016-05-11 12:42               ` Richard Weinberger
2016-05-11 14:47               ` Richard Weinberger
2016-05-12 13:29                 ` Richard Weinberger
2016-05-13  9:40                   ` DHANAPAL, GNANACHANDRAN (G.)
2016-05-13 13:54                     ` Richard Weinberger [this message]
2016-05-13 16:02                       ` DHANAPAL, GNANACHANDRAN (G.)
2016-05-13 16:03                       ` CN, Aananth (A.A.)

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