On Fri, May 18, 2018 at 1:49 AM, Qu Wenruo <quwenruo.btrfs@xxxxxxx> wrote: > And btrfs check doesn't report the same problem as the default original > mode doesn't have such check. > > Please also post the result of "btrfs check --mode=lowmem /dev/sda1" Are you saying "--mode=lowmem" does more checks than without it? "man btrfs check" says it's experimental and the difference is just original is unoptimized regarding memory consumption and can run out of memory, and low memory addresses this with increased IO cost from re-reading blocks increasing run time. It doesn't indicate lowmem is a better check. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
