[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Issue still persists, see utilization graph on mostly idle instance. All
peaks are caused by mentioned issue. I have restart configured as a
workaround, when cpu hits 100 for 30 min.
** Attachment added: "cloudWatch report"
Alex, to clarify, if you were to add swap back in, would kswapd0 still
consume 100% CPU when at the same load levels across resources?
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.4
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Unfortunately cannot proceed without linux-image-extra package. Rolling
back to previous version.
Will try to setup new instance with latest 4.4.
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I've recreated an instance from scratch with ami-c4140aa8.
Issue still happens, however less frequently - it happened 3 times during last
week.
I've proceeded with latest kernell update.
Installed 4.4.0-040400.
Will follow on results below.
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** Tags added: kernel-da-key
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Title:
kswapd0 consumes 100% CPU
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** Tags added: kswapd
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Title:
kswapd0 consumes 100% CPU
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** Description changed:
- I'm running AWS EC2 t2.micro instance with below ubuntu version.
- ubuntu-wily-15.10-amd64-server-20151203 (ami-7d948911)
+ I'm running AWS EC2 t2.micro instance with below ubuntu version.
+ ubuntu-wily-15.10-amd64-server-20151203 (ami-7d948911)
4.2.0-23-generic
Alex, thank you for reporting this and helping make Ubuntu better.
At your earliest convenience, could you please test the latest upstream
kernel available from the very top line at the top of the page from
http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
names are irrelevant
