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From: Oleg Nesterov <oleg@redhat.com>
To: Tycho Andersen <tycho@tycho.pizza>
Cc: "Serge E. Hallyn" <serge@hallyn.com>,
	"Eric W . Biederman" <ebiederm@xmission.com>,
	Miklos Szeredi <miklos@szeredi.hu>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] sched: __fatal_signal_pending() should also check PF_EXITING
Date: Wed, 27 Jul 2022 19:55:39 +0200	[thread overview]
Message-ID: <20220727175538.GC18822@redhat.com> (raw)
In-Reply-To: <YuFdUj5X4qckC/6g@tycho.pizza>

On 07/27, Tycho Andersen wrote:
>
> Hi all,
>
> On Wed, Jul 20, 2022 at 08:54:59PM -0500, Serge E. Hallyn wrote:
> > Oh - I didn't either - checking the sigkill in shared signals *seems*
> > legit if they can be put there - but since you posted the new patch I
> > assumed his reasoning was clear to you.  I know Eric's busy, cc:ing Oleg
> > for his interpretation too.
>
> Any thoughts on this?

Cough... I don't know what can I say except I personally dislike this
patch no matter what ;)

And I do not understand how can this patch help. OK, a single-threaded
PF_EXITING task sleeps in TASK_KILLABLE. send_signal_locked() won't
wake it up anyway?

I must have missed something.

Oleg.


  parent reply	other threads:[~2022-07-27 18:56 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-23 17:21 strange interaction between fuse + pidns Tycho Andersen
2022-06-23 21:55 ` Vivek Goyal
2022-06-23 23:41   ` Tycho Andersen
2022-06-24 17:36     ` Vivek Goyal
2022-07-11 10:35 ` Miklos Szeredi
2022-07-11 13:59   ` Miklos Szeredi
2022-07-11 20:25     ` Tycho Andersen
2022-07-11 21:37       ` Eric W. Biederman
2022-07-11 22:53         ` Tycho Andersen
2022-07-11 23:06           ` Eric W. Biederman
2022-07-12 13:43             ` Tycho Andersen
2022-07-12 14:34               ` Eric W. Biederman
2022-07-12 15:14                 ` Tycho Andersen
2022-07-13 17:53                   ` [PATCH] sched: __fatal_signal_pending() should also check PF_EXITING Tycho Andersen
2022-07-20 15:03                     ` Serge E. Hallyn
2022-07-20 20:58                       ` Tycho Andersen
2022-07-21  1:54                         ` Serge E. Hallyn
2022-07-27 15:44                           ` Tycho Andersen
2022-07-27 16:32                             ` Eric W. Biederman
2022-07-27 17:55                               ` Tycho Andersen
2022-07-28 18:48                                 ` Eric W. Biederman
2022-07-27 17:55                             ` Oleg Nesterov [this message]
2022-07-27 18:18                               ` Tycho Andersen
2022-07-27 19:19                                 ` Oleg Nesterov
2022-07-27 19:40                                   ` Tycho Andersen
2022-07-28  9:12                                     ` Oleg Nesterov
2022-07-28 21:20                                       ` Tycho Andersen
2022-07-29  5:04                                         ` Eric W. Biederman
2022-07-29 13:50                                           ` Tycho Andersen
2022-07-29 16:15                                             ` Eric W. Biederman
2022-07-29 16:48                                               ` Tycho Andersen
2022-07-29 17:40                                                 ` [RFC][PATCH] fuse: In fuse_flush only wait if someone wants the return code Eric W. Biederman
2022-07-29 20:47                                                   ` Oleg Nesterov
2022-07-30  0:15                                                     ` Al Viro
2022-07-30  5:10                                                       ` [RFC][PATCH v2] " Eric W. Biederman
2022-08-01 15:16                                                         ` Tycho Andersen
2022-08-02 12:50                                                         ` Miklos Szeredi
2022-08-15 13:59                                                         ` Tycho Andersen
2022-08-15 17:55                                                           ` Serge E. Hallyn
2022-09-01 14:06                                                           ` [PATCH] " Tycho Andersen
2022-09-19 15:03                                                             ` Tycho Andersen
2022-09-20 18:02                                                               ` Serge E. Hallyn
2022-09-26 14:17                                                               ` Tycho Andersen
2022-09-27  9:46                                                             ` Miklos Szeredi
2022-09-29 14:05                                                               ` [fuse-devel] " Stef Bon
2022-09-29 16:39                                                               ` [PATCH v2] " Tycho Andersen
2022-09-30 13:35                                                                 ` Miklos Szeredi
2022-09-30 14:01                                                                   ` Tycho Andersen
2022-09-30 14:41                                                                     ` Miklos Szeredi
2022-09-30 16:09                                                                       ` Tycho Andersen
2022-10-26  9:01                                                                         ` Miklos Szeredi
2022-11-14 16:02                                                                           ` [PATCH v3] " Tycho Andersen
2022-11-28 15:00                                                                             ` Tycho Andersen
2022-12-08 14:26                                                                               ` Miklos Szeredi
2022-12-08 17:49                                                                                 ` Tycho Andersen
2022-12-19 19:16                                                                                   ` Tycho Andersen
2023-01-03 14:51                                                                                     ` Tycho Andersen
2023-01-05 15:15                                                                                       ` Serge E. Hallyn
2023-01-26 14:12                                                                                       ` Miklos Szeredi
2022-09-30 19:47                                                               ` [PATCH] " Serge E. Hallyn
2022-09-19 15:46                                                           ` [RFC][PATCH v2] " Eric W. Biederman

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