(in kernel.org 3.13.7) This appears to be due to bcache_writeback trying to do something it shouldn't in writethrough mode. (The default is writeback_running=1, even when cache mode is "writethrough").
echo 0 > /sys/block/bcache0/bcache/writeback_running ...appears to fix (workaround) it. -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
