On Fri, Mar 24, 2017 at 10:00:24AM +0800, Qu Wenruo wrote:
> --- a/fs/btrfs/scrub.c
> +++ b/fs/btrfs/scrub.c
> @@ -1065,6 +1065,7 @@ static int scrub_handle_errored_block(struct
> scrub_block *sblock_to_check)
> unsigned int have_csum;
> struct scrub_block *sblocks_for_recheck; /* hold
When scrubbing a RAID5 which has recoverable data corruption (only one
data stripe is corrupted), sometimes scrub will report more csum errors
than expected. Sometimes even unrecoverable error will be reported.
The problem can be easily reproduced by the following steps:
1) Create a btrfs with RAI
