On Thu, Dec 19, 2013 at 8:59 PM, Chris Mason <clm@xxxxxx> wrote: > On Wed, 2013-12-18 at 18:17 +0100, eb wrote: > 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? If you send me a patch - my experience on hacking on the kernel is exactly 0 - I'll try to see if I can compile a custom kernel and get it running. > Could you please cc the bcache and btrfs list together? Done. I did some more testing - I copied an image of a 128GB drive over the network (via netcat) onto the bcache/btrfs system and verified the results twice using sha1sum. They're both identical on the source system (which is *not* using bcache) and bcache/btrfs setup. I've gotten a lot of the incomplete write errors and a few csum erros in dmesg, but apparently they haven't done any harm? Not sure how remarkable this is, as these kinds of things are supposed to bypass the cache anyway, but I assume they still have to go through the subsystem. -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html