From: Artem Bityutskiy <dedekind@infradead.org>
To: kyungmin.park@samsung.com
Cc: linux-mtd <linux-mtd@lists.infradead.org>
Subject: Re: Eraseblocks torture: OneNAND results
Date: Fri, 08 Dec 2006 15:30:19 +0200 [thread overview]
Message-ID: <1165584619.3975.9.camel@sauron> (raw)
In-Reply-To: <1165565328.20337.115.camel@sauron>
[-- Attachment #1: Type: text/plain, Size: 1174 bytes --]
Kyungmin,
On Fri, 2006-12-08 at 10:08 +0200, Artem Bityutskiy wrote:
> Ah, indeed, thanks. I will add bad block checking. Also, I am
> re-structuring the test now to make it baster and more torturous. I am
> going to do erase/write/operations with the whole group, not with each
> eraseblock separately. HW guys think it should cause more trouble for
> flash. I will notify you when to update.
I have re-worked the test and made it aware of bad eraseblock. The
updated version is at git.
I also got one more error, the log is attached. I do not know how it
happens that we write 0xAA but read 0x55. But what I can say is that the
first errors we saw were one-bit errors. Now we mostly get massive
corruptions. This looks strange. May be we should leave these (20-51)
eraseblocks alone and start torturing new set of eraseblocks.
Anyways, I hope you will run the test and see what you have on your
system.
I have attach one more failure log. The symptoms look the same. But now
we verify eraseblocks after erase, so we can be sure erase does not
leave garbage in eraseblocks.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
[-- Attachment #2: 2nd_g_torture_01.txt --]
[-- Type: text/plain, Size: 21923 bytes --]
insmod torture.ko dev=4
[12016.978698]
[12016.980529] =========================================================================================
[12016.990051] EB torture: Torture 32 eraseblocks (20-52) of mtd4
[12016.996093] EB torture: Write verify enabled
[13670.757598] - 00001000 erase cycles done
[15319.406188] - 00002000 erase cycles done
[15416.399993] EB torture: read wrong data from EB 43 after
[15416.412719] EB torture: Verify fails on 1 pages, 2016 bytes/16128 bits
[15416.419525] EB torture: The following is a list of all differences between what was read from flash and what was expected
[15416.431579] -----------------------------------------------------------------------------------------
[15416.441101] EB torture: Page 0 has 2016 bytes/16128 bits failing verify, starting at offset 0x0
[15416.450225] Offset Read Written
[15416.456115] 0x00000000: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.463745] 0x00000008: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.471374] 0x00000010: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.479003] 0x00000018: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.486633] 0x00000020: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.494262] 0x00000028: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.501892] 0x00000030: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.509521] 0x00000038: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.517150] 0x00000040: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15416.524780] 0x00000048: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
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[15418.187377] 0x00000718: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.195037] 0x00000720: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.202667] 0x00000728: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.210296] 0x00000730: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.217926] 0x00000738: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.225555] 0x00000740: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.233184] 0x00000748: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.240814] 0x00000750: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.248443] 0x00000758: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.256072] 0x00000760: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.263732] 0x00000768: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.271362] 0x00000770: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.278991] 0x00000778: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.286621] 0x00000780: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.294250] 0x00000788: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.301879] 0x00000790: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.309509] 0x00000798: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.317138] 0x000007a0: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.324768] 0x000007a8: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.332397] 0x000007b0: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.340026] 0x000007b8: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.347656] 0x000007c0: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.355102] 0x000007c8: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.362731] 0x000007d0: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.370361] 0x000007d8: 55 55 55 55 55 55 55 55 *** aa aa aa aa aa aa aa aa
[15418.377990] 0x000007e0: aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa
[15418.391937] EB torture: verify failed for 0xAA55AA... pattern
[15418.397949] EB torture: torture finished after 2058 erase cycles
[15418.404235] EB torture: error -22 occurred during torturing
[15418.409851] =========================================================================================
next prev parent reply other threads:[~2006-12-08 13:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-08 7:42 Eraseblocks torture: OneNAND results Kyungmin Park
2006-12-08 8:08 ` Artem Bityutskiy
2006-12-08 13:30 ` Artem Bityutskiy [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-12-22 7:58 Kyungmin Park
2006-12-22 9:22 ` Artem Bityutskiy
2006-12-15 5:02 Kyungmin Park
2006-12-15 7:54 ` Enrico Migliore
2006-12-15 8:44 ` Ricard Wanderlof
2006-12-21 15:30 ` Jarkko Lavinen
2006-12-11 8:31 Kyungmin Park
2006-12-13 13:46 ` Artem Bityutskiy
2006-12-08 2:00 Kyungmin Park
2006-12-08 6:19 ` Artem Bityutskiy
2006-12-08 13:43 ` Ricard Wanderlof
2006-12-08 13:52 ` Artem Bityutskiy
2006-12-07 14:30 Artem Bityutskiy
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