On Fri, 14 Jun 2019 at 00:41, Qu Wenruo <quwenruo.btrfs@xxxxxxx> wrote: > That's common if the device is really failing. > Raid5 should re-build the corrupted blocks. That's strange then, because there are a few files that are unreadable, i.e. attempting to read them with normal programs like 'cp' gives I/O error. > Looks like a dead loop. > > Would you please provide the kernel version please? Linux meije 5.1.9-arch1-1-ARCH #1 SMP PREEMPT > And have you tried cancel current balance and start a new one again? How do I cancel it? I started "btrfs device remove missing /data" with nohup. That ssh session is no longer active and issuing SIGTERM to that process doesn't cause it to die, which is not surprising since looking at the source it seems to execute the whole device remove from within the kernel during a single ioctl call. Thanks for such a quick response, too.
