On Mon, Oct 21, 2013 at 04:36:41PM +0800, david pu wrote: > I'm running into btrfs-transaction hang issue with below call trace > from dmesg[1]. > when this issue happens, all filesystem r/w access will be blocked and > no response in terminal. I'm using Ubuntu raring(linux 3.2 kernel) > 64bit kernel as below: > Linux dpu-e6410 3.2.0-36-generic #57-Ubuntu SMP Tue Jan 8 21:44:52 UTC > 2013 x86_64 x86_64 x86_64 GNU/Linux > > is it a known issue? How to recover from such task hung status? The message can occur when 1) system is under heavy load or fragmentation slows down the IO, this is harmless, the warnings stop after a few cycles 2) it's a bug and the system cannot move forward due to a deadlock, the warnings appear repeatedly and the IO seems to be stalled For a 3.2 kernel it's possible that the bug is there. david -- 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
