> Happens a 100% of the time here, annoyingly. As mentioned, 3.15 was > working for me, and still does. Multiple reboots and it happens > immediately on boot even before gdm comes up. Would be logical to do block-level I/O tracing to get idea WHAT is this IO, right? Try something like echo 1 > /proc/sys/vm/block_dump and see dmesg. Beware: it can flood your logs and then dumping logs to HDD can also cause I/O ( which is in turn logged). So take care and do not forget to disable it by doing echo 0 > /proc/sys/vm/block_dump -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
