Re: [RFC PATCH 1/8] signal: Dequeue SIGKILL even if SIGNAL_GROUP_EXIT/group_exec_task is set

[Oleg Nesterov]

On 05/18, Christian Brauner wrote:
>
> On Thu, May 18, 2023 at 08:08:10PM +0200, Oleg Nesterov wrote:
> > On 05/18, Christian Brauner wrote:
> > >
> > > Yeah, but these are issues that exist with PF_IO_WORKER then too
> >
> > This was my thought too but I am starting to think I was wrong.
> >
> > Of course I don't understand the code in io_uring/ but it seems
> > that it always breaks the IO loops if get_signal() returns SIGKILL.
>
> Yeah, it does and I think Mike has a point that vhost could be running
> into an issue here that io_uring currently does avoid. But I don't think
> we should rely on that.

So what do you propose?

Unless (quite possibly) I am confused again, unlike io_uring vhost can't
tolerate signal_pending() == T in the cleanup-after-SIGKILL paths?

Oleg.