ECC correct error on VFAT filesytem
YongLi
sdshliyong at 163.com
Thu Feb 26 04:30:18 CET 2009
Hello All,
I am testing the s3c2410 ecc correct function using linux 2.6.28 on SMDK2440
platform.
After I mount the mtdblock1 as VFAT filesystem using:
mount -t vfat /dev/mtdblock1 /mnt
I found one problem: If there is an ECC error, the file IO report an error:
end_request: I/O error, dev mtdblock1, sector 105504
In fact, the s3c2410_nand_correct_data function has correct the one bit
error.
If I use jffs2 or Yaffs2 filesystem, I do not encounter this problem. It
seems that the
nand_do_read_ops function in nand_base.c has problem:
return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
If there is an ECC bit error, this function will return -EUCLEAN, however,
vfat think there is an error.
How to resolve this problem?
Li Yong
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