A while back I opened an issue in the IO/Storage Block layer in kernel bugzilla -- though it may be going to the wrong queue. Was wondering if someone could take a quick look at https://bugzilla.kernel.org/show_bug.cgi?id=193331 and see if the problem rings a bell, or if it's in the wrong component, etc. or give me some direction on what information I should try to collect. Briefly when I upgraded a system from 4.0.5 kernel to 4.9.5 (and later) I'm seeing a blocked task timeout with heavy IO against a multi-lun btrfs filesystem. I've tried a 4.12.12 kernel and am still getting the hang. I can force a recreate by running a btrfs scrub against the filesystem. My initial encounters with the hang was when I was running a filesystem backup and also when the major app (FTP server in this case) was performing a lot of read IO. Thanks in advance. Cheyenne Wills -- 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
