Comment 20 for bug 755066

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Colin Ian King (colin-king) wrote :

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.