One of my test laptops started hanging on mounting the root filesystem. I think that it had experience an unexpected power outage prior to that which may have caused corruption.
When I tried to mount the root filesystem the mount process would stick in D state, there would be no disk IO, and the computer would get hot - presumably due to kernel CPU use even though "top" didn't seem to indicate that. When I mounted the filesystem with a 4.2.0 kernel it said "The free space cache file (1103101952) is invalid, skip it" and then things worked. Now that the machine is running 4.2.0 everything is fine. I know that there are no plans to backport things to 3.16 and I don't think the Debian people are going to be very interested in this. So this message is a FYI for users, maybe consider not using the Debian/Jessie kernel for BTRFS systems. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
