Hi Marc,
On 03/01/2014 11:22 PM, Marc MERLIN wrote:
On Fri, Feb 28, 2014 at 09:09:37PM -0800, Marc MERLIN wrote:
On Fri, Feb 28, 2014 at 09:18:06AM +0800, Wang Shilong wrote:
Could you run the following command when scrub is blocked, we can know more
why scrub is blocked here.
# echo w > /proc/sysrq-trigger
# dmesg
Yes, there you go:
(attached because it's too big for the list)
http://marc.merlins.org/tmp/btrfs_nofreeze.txt
Could you please try the following patch, and let's see if it helps:
https://patchwork.kernel.org/patch/3680431/
This patch addressed a deadlock for device replace, but i guess scrub
may also
trigger this problem if there are errors related to the disk.
BTW, is there some errors related to scrub device, something like:
# btrfs device stat <device>
Thanks,
Wang
Marc
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