On Thu, May 17, 2012 at 08:10:20PM +0400, Sergey E. Kolesnikov wrote: > Hello. > I've been running Ubuntu 12.04 kernel and btrfs on two partitions of > two GPT partitioned SSDs. Rootfs was btrfs subvol "@" and homes were > at "@home". When I was batch trimming with "fstrim /" using Ubuntu's > standard kernel 3.2.0 - everything was fine. Then I compiled vanilla > 3.3.6 kernel ad tried to fstrim again, fs got severely damaged. > > It seems that batch trim miscalculates ranges and trims some > occupied space. Can't say if GPT or other partitioning details > matter. The issue was apparently fixed in 3.4-rc2: http://lkml.indiana.edu/hypermail/linux/kernel/1204.1/00340.html
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