Re: [PATCH 0/11] Short circuit delivery for coredump signals

[Christian Brauner]

On 2026-07-05 17:54 +0200, Oleg Nesterov wrote:
> On 07/03, Eric W. Biederman wrote:
> >
> > Oleg Nesterov <oleg@xxxxxxxxxx> writes:
> >
> > > Yes, the coredumping process is not dead. Yet. It can do a lot of activity
> > > and use a lot of resources.
> >
> > It is semantically dead.  Pragmatically I completely agree.
> >
> > >> Do you know of something where userspace actually depends upon
> > >> killing a coredump before it even starts?
> > >
> > > Well. I think a user has all rights to assume that SIGKILL must always
> > > terminate the process asap, the process killed by SIGKILL must not start
> > > the coredumping.

I agree and that's not an acceptable regression especially given how
sensitive this codepath is.