On Wed, 2013-12-18 at 18:17 +0100, eb wrote: > I've recently setup a system (Kernel 3.12.5-1-ARCH) which is layered as > follows: > > /dev/sdb3 - cache0 (80 GB Intel SSD) > /dev/sdc1 - backing device (2 TB WD HDD) > > sdb3+sdc1 => /dev/bcache0 > > On /dev/bcache0, there's a btrfs filesystem with 2 subvolumes, mounted > as / and /home. What's been bothering me are the following entries in > my kernel log: > > [13811.845540] incomplete page write in btrfs with offset 1536 and length 2560 > [13870.326639] incomplete page write in btrfs with offset 3072 and length 1024 > > The offset/length values are always either 1536/2560 or 3072/1024, > they sum up nicely to 4K. There are 607 of those in there as I am > writing this, the machine has been up 18 hours and been under no > particular I/O strain (it's a desktop).
Btrfs shouldn't be setting the offset on the bios. Are you able to add a WARN_ON to the message that prints this so we can see the stack trace? Could you please cc the bcache and btrfs list together? -chris -- 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
