On Sun, Aug 24, 2014 at 8:57 PM, Duncan <1i5t5.dun...@cox.net> wrote: > Oon-Ee Ng posted on Sun, 24 Aug 2014 17:55:32 +0800 as excerpted: > >> I'm using 64-bit Arch Linux. Since update to kernel versions 3.16 and >> 3.16.1 I'm getting a constant 6+ MiB/s write on my root. Root does not >> seem to fill up though. Has run for 2 hours straight, and obviously >> slows everything else down to a crawl. >> >> Downgrading to 3.15.8 (last working version for me) solves the symptoms. >> I'm unsure how to check for root causes, and my distro's mailing list >> suggested starting here. > > I've seen that a couple of times here, but it always goes away when I > reboot (and / is ro by default here, so it'd be on one of the other btrfs > partitions, probably /home or /var/log).
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. > > Meanwhile, if you use the compress mount option, you might wish to return > to 3.14.x temporarily. There's a bug that can trigger lockups on 3.15+, > altho a fix should make it to a later 3.16 stable and to 3.17. The bug > was a regression for 3.15 so doesn't affect 3.14, and is only a problem > if you're using (AFAIK or have used) compression. It's also not as big > an issue here (on fast ssds with smaller than usual partitions) as it is > on some people's systems, tho I'm not sure why and I think it has it me a > time or two, but I've not bothered downgrading as it hasn't been that big > an issue, here. I have never used compression and haven't experienced any lockups. -- 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
