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* [PATCH 0/4] sched: Fix some load-balancer vs hotplug holes
@ 2017-09-07 15:03 Peter Zijlstra
  2017-09-07 15:03 ` [PATCH 1/4] sched/fair: Avoid newidle balance for !active CPUs Peter Zijlstra
                   ` (3 more replies)
  0 siblings, 4 replies; 18+ messages in thread
From: Peter Zijlstra @ 2017-09-07 15:03 UTC (permalink / raw)
  To: mingo, tglx; +Cc: linux-kernel, peterz

Hi

Thomas had some hotplug stress funnies and these appear to cure things. Should
go into this merge window thingy, except the last one, which is fine for later.

The first is an obvious regression and has a Fixes line, the second
looks like a pre-existing hole, but might be made easier to hit,
although I can't readily tell you how.

And while I could readily hit the first hole, I didn't manage to trigger
the second, but Thomas had enough trace data to confirm he could.

^ permalink raw reply	[flat|nested] 18+ messages in thread

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Thread overview: 18+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-07 15:03 [PATCH 0/4] sched: Fix some load-balancer vs hotplug holes Peter Zijlstra
2017-09-07 15:03 ` [PATCH 1/4] sched/fair: Avoid newidle balance for !active CPUs Peter Zijlstra
2017-09-12 18:04   ` [tip:sched/urgent] " tip-bot for Peter Zijlstra
2017-09-07 15:03 ` [PATCH 2/4] sched/fair: Plug hole between hotplug and active load_balance Peter Zijlstra
2017-09-12 18:05   ` [tip:sched/urgent] sched/fair: Plug hole between hotplug and active_load_balance() tip-bot for Peter Zijlstra
2017-09-07 15:03 ` [PATCH 3/4] sched: WARN when migrating to an offline CPU Peter Zijlstra
2017-09-12 18:05   ` [tip:sched/urgent] sched/core: WARN() " tip-bot for Peter Zijlstra
2017-09-28  9:14   ` [PATCH 3/4] sched: WARN " Sasha Levin
2017-09-28 10:35     ` Peter Zijlstra
2017-09-28 11:03       ` Levin, Alexander (Sasha Levin)
2017-09-28 11:42         ` Peter Zijlstra
2017-09-29 11:11           ` Peter Zijlstra
2017-10-07  2:07             ` Levin, Alexander (Sasha Levin)
2017-10-07  9:15               ` Peter Zijlstra
     [not found]                 ` <20171007174327.ky6g5viokxg5ysdm@sasha-lappy>
2017-10-09  8:04                   ` Peter Zijlstra
2017-10-10  1:18                     ` Levin, Alexander (Sasha Levin)
2017-09-07 15:03 ` [PATCH 4/4] sched/debug: Add debugfs knob for "sched_debug" Peter Zijlstra
2017-09-12 18:05   ` [tip:sched/urgent] " tip-bot for Peter Zijlstra

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