Just to make things a little more confusing, the patches in the bug got replaced by a better fix and these are being tracked in bug 808509 namely: "SRU: Stop kswapd consuming 100% CPU when highest zone is small".
I've tested the -proposed kernel and it addresses this bug (since it's essentially a manifestation of the same root bug). Testing as as follows: ~4 hours of running a script (see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/808509/comments/7 ) giving 500 iterations of a copy loop that copies ~795MB of files from one ext4 partition to another. Exhaustive test passed. Without the fix the test would fail after a few tens of iterations. So I will mark this as verified. ** Tags added: natty-verification-done ** Tags removed: verification-needed-natty ** Tags added: verification-done-natty ** Tags removed: natty-verification-done -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/755066 Title: Heavy I/O on Sandybridge systems with small memory footprints causes system hangs To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/755066/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
