在 2020/3/3 5:14, Richard Weinberger 写道:
On Mon, Mar 2, 2020 at 4:58 AM Zhihao Cheng <chengzhihao1@xxxxxxxxxx> wrote:
I mean, the uncorrectable ECC error is caused by hardware which may lead
to corrupted nodes detected in UBIFS. I found uncorretable ECC errors on
my NAND, in the environment of high temperature and humidity.
At present, UBIFS ignores all EBADMSG errors, so the corrupted node is
only considered in being caused by unfinished writing. I think UBIFS
should consider the corrupted area caused by ECC errors in process
ubifs_recover_leb(). no_more_nodes() will skip a read-write unit. Maybe
the corrupted area is skipped.
Well, if your NAND data is corrupted by your environment UBIFS cannot
do much. Sure, we can paper over some places but at the end of the day
you will always lose.
What if the UBI VID header becomes unreadable or the root node of the
index tree?
Agree, thanks for reminding.
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