Messages in this thread | | | From | "Zhang, Qiang" <> | Subject | Question on migrate_disabe/enable() | Date | Tue, 26 Jan 2021 02:12:45 +0000 |
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Hello Peterz, tglx
I have some questions about migrate_disabe/enable(), in the past migrate_disabe/enable() is replaced by preempt_disable/enable() in no RT system.
And now migrate_disabe/enable() has its own implementation, I want to know in migrate_disabe/enable() critical area is blocking allowed?
If allowed, There's a blockage in migrate_disabe/enable() critical area, and this time if CPU going offline,offline time will be longer. Is this normal phenomenon?
Thanks Qiang
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