On 08/15/2012 10:48 AM, Marc MERLIN wrote:

On Tue, Aug 14, 2012 at 11:23:14AM -0700, Marc MERLIN wrote:

quoted

My laptop oopsed due to a wireless bug

When I rebooted, the system came back ok, and seemed to work, but soon went
to read only with the error in the subject line.

I have hourly snapshots for each of the 5 subvolumes in that btrfs
filesystem.

How do I recover from this? Revert all the snapshots one hour, find/guess
which one caused the problem somehow and revert just that one? (the error
message didn't give a subvolume or directory).

Also, before I do this, is there debug info I can get off my system?

I'm likely to have to do this tonight to get back to a working system.

If someone wants debug info before I lose it potentially, please ask soon ;)

Marc

What does the 'ret' shows?  Is it -ENOSPC?

thanks,
liubo