Messages in this thread | | | Date | Tue, 24 Aug 2021 11:19:43 -0400 | From | Dave Jones <> | Subject | Re: 5.14-rc breaks iotop swap io monitoring. |
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On Tue, Aug 24, 2021 at 10:31:16AM +0200, Peter Zijlstra wrote: > On Mon, Aug 23, 2021 at 11:16:48PM -0400, Dave Jones wrote: > > I just noticed that in 5.14-rc running iotop, it complains on startup > > that "CONFIG_TASK_DELAY_ACCT not enabled in kernel, cannot determine > > SWAPIN and IO %" and sure enough a bunch of columns show up as > > 'unavailable'. > > > > My suspicion is this commit, which I've not confirmed yet as it doesn't > > cleanly revert. I'll poke at it some more in the morning, but figured > > I'd bring it up sans-evidence in the hope that I'll wake up to someone > > having an Ah-ha moment. > > If you need DELAYACCT I'm thinking: > > e4042ad49235 ("delayacct: Default disabled") > > and > > 0cd7c741f01d ("delayacct: Add sysctl to enable at runtime")
That does sound more relevant. however, even after echo 1 > /proc/sys/kernel/task_delayacct, it still fails in the same way.
Dave
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