Re: x86_64 Question: Are concurrent IPI requests safe?

[Peter Zijlstra]

On Thu, May 12, 2016 at 12:19:07AM +0900, Tetsuo Handa wrote:
> Well, I came to feel that this is caused by down_write_killable() bug.
> I guess we should fix down_write_killable() bug first.

There's a patch you can try in that thread...

  lkml.kernel.org/r/20160511094128.GB3190@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx