Re: [PATCH v5 1/2] kernel/signal: Signal-based pre-coredump notification

From: Oleg Nesterov
Date: Fri Nov 30 2018 - 07:03:56 EST


On 11/29, Dave Martin wrote:
>
> SIGCHLD + wait() is immune to this problem for other child status
> notifications (albeit with higher overhead).
>
> Unless I've missed something fundamental, signals simply aren't a
> reliable data transport

Yes. But I hope we are not going to implement WCOREDUMP.

I am not fan of this patch, but at least it is simple.

Oleg.