On Wed, Sep 08, 2021 at 02:51:21PM +0000, David Laight wrote:
From: Wei Liu
Sent: 08 September 2021 11:03
...
However calling into the allocator from that IPI path seems very heavy weight. I will discuss with fellow engineers on how to fix it properly.
Isn't the IPI code something that is likely to get called when a lot of stack has already been used?
So you really shouldn't be using much stack at all??
I don't follow your questions. I don't dispute there is a problem. I just think calling into the allocator is not a good idea in that particular piece of code we need to fix.
Hopefully we can come up with a solution to remove need for a cpumask in that code -- discussion is on-going.
Wei.
David
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