* Steven Rostedt <rost...@goodmis.org> wrote:
> Since the NMI iretq nesting has been fixed, there's no reason that
> an NMI handler can not take a page fault for vmalloc'd code. No locks
> are taken in that code path, and the software now handles nested NMIs
> when the fault re-enables NMIs on iretq.
>
> Not only that, if the vmalloc_fault() WARN_ON_ONCE() is hit, and that
> warn on triggers a vmalloc fault for some reason, then we can go into
> an infinite loop (the WARN_ON_ONCE() does the WARN() before updating
> the variable to make it happen "once").
>
> Reported-by: "Liu, Chuansheng" <chuansheng....@intel.com>
> Signed-off-by: Steven Rostedt <rost...@goodmis.org>
Would be nice to see the warning quoted that triggered this.
Thanks,
Ingo
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