Is it always the same blocks failing?
If so, it's more likely to be some error on NAND Level, otherwise it
could also be SPI communication somehow failing or weird bugs in mtd or
ubi...
What NAND chip is used on your board?
I had a SheevaPlug for testing, but the internal power supply died a
week ago and probably killed something else as well when that happend
and the thing appears to be dead now. I still got some other Kirkwood
boards for testing, those are equipped with
NAND device: Manufacturer ID: 0xec, Chip ID: 0xd3 (Samsung NAND 1GiB
3,3V 8-bit)
which also come with a few factory bad-blocks...
I currently use one of those a my local office server, so it's running
almost 24/7 for about 2 weeks now and survived all
filesystem-stress-tests (including installing and using a debian-chroot
on ubifs using debootstrap)...
ubiformat: mtd2 (nand), size 532676608 bytes (508.0 MiB), 4064 eraseblocks of
131072 bytes (128.0 KiB), min. I/O size 2048 bytes
looks like it matches the parameters we are using now, so block
alignment is unlikely to be the cause.
What is also strange about the output is that it detects wrong ECCs on
PEB 25,26,27,32 and then keeps on torturing PEB 58 instead of having a
closer look at those...
Maybe I was just lucky with the NANDs I had for now...?
On 08/24/2011 03:48 AM, Romary Sonrier wrote:
Hello
I have just tried
LINUX_VERSION:=2.6.39.2
and
LINUX_VERSION:=3.0
Both gave the same result: once you do intensiv i/o on ubifs (like find
/<mountpoint>/), i get strange message:
UBI: run torture test for PEB 58 UBI: PEB 58 passed torture test, do
not mark it as bad UBI error: ubi_io_read: error -74 (ECC error)
while reading 129024 bytes from PEB 25:2048, read 129024 bytes UBI
warning: ubi_eba_copy_leb: error -74 while reading data from PEB 25
UBI error: ubi_io_read: error -74 (ECC error) while reading 129024
bytes from PEB 26:2048, read 129024 bytes UBI warning:
ubi_eba_copy_leb: error -74 while reading data from PEB 26 UBI error:
ubi_io_read: error -74 (ECC error) while reading 129024 bytes from
PEB 27:2048, read 129024 bytes UBI warning: ubi_eba_copy_leb: error
-74 while reading data from PEB 27 UBI error: ubi_io_read: error -74
(ECC error) while reading 129024 bytes from PEB 32:2048, read 129024
bytes UBI warning: ubi_eba_copy_leb: error -74 while reading data
from PEB 32 UBI: run torture test for PEB 58 UBI: PEB 58 passed
torture test, do not mark it as bad UBI: ruUBI: PEB 58 passed torture
test, do not mark it as bad
Could it comme from marvell mtd driver or some nand block alignement issue ?
Best regards,
Romary Sonrier
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