From: Daniel Colascione <dancol@google.com>
To: David Howells <dhowells@redhat.com>
Cc: Christian Brauner <christian@brauner.io>,
Jann Horn <jannh@google.com>,
khlebnikov@yandex-team.ru, Andy Lutomirski <luto@kernel.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Linux API <linux-api@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Arnd Bergmann <arnd@arndb.de>, Kees Cook <keescook@chromium.org>,
Alexey Dobriyan <adobriyan@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Michael Kerrisk-manpages <mtk.manpages@gmail.com>,
bl0pbl33p@gmail.com, "Dmitry V. Levin" <ldv@altlinux.org>,
Andrew Morton <akpm@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>,
nagarathnam.muthusamy@oracle.com,
Aleksa Sarai <cyphar@cyphar.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Joel Fernandes <joel@joelfernandes.org>
Subject: Re: [PATCH 0/4] pid: add pidctl()
Date: Mon, 25 Mar 2019 09:58:38 -0700 [thread overview]
Message-ID: <CAKOZuev9TccQekrJjt50AhKA5cYskMmmKR3WF+Rm7G1xmbiV_w@mail.gmail.com> (raw)
In-Reply-To: <18683.1553532974@warthog.procyon.org.uk>
On Mon, Mar 25, 2019 at 9:56 AM David Howells <dhowells@redhat.com> wrote:
> Daniel Colascione <dancol@google.com> wrote:
>
> > System calls are cheap.
>
> Only to a point. x86_64 will have an issue when we hit syscall 512. We're
> currently at 427.
IIRC, a while ago, someone proposed restarting system call numbering
above (again, IIRC) 1024 for both 32- and 64-bit varieties to
establish a clean slate and sidestep this problem.
WARNING: multiple messages have this Message-ID (diff)
From: Daniel Colascione <dancol@google.com>
To: David Howells <dhowells@redhat.com>
Cc: Christian Brauner <christian@brauner.io>,
Jann Horn <jannh@google.com>,
khlebnikov@yandex-team.ru, Andy Lutomirski <luto@kernel.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Linux API <linux-api@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Arnd Bergmann <arnd@arndb.de>, Kees Cook <keescook@chromium.org>,
Alexey Dobriyan <adobriyan@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Michael Kerrisk-manpages <mtk.manpages@gmail.com>,
bl0pbl33p@gmail.com, "Dmitry V. Levin" <ldv@altlinux.org>,
Andrew Morton <akpm@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>,
nagarathnam.muthusamy@oracle.com,
Aleksa Sarai <cyphar@cyphar.com>,
Al Viro <viro@zeniv.linux.org.uk>, Joel Fernandes <joel@joelfe>
Subject: Re: [PATCH 0/4] pid: add pidctl()
Date: Mon, 25 Mar 2019 09:58:38 -0700 [thread overview]
Message-ID: <CAKOZuev9TccQekrJjt50AhKA5cYskMmmKR3WF+Rm7G1xmbiV_w@mail.gmail.com> (raw)
In-Reply-To: <18683.1553532974@warthog.procyon.org.uk>
On Mon, Mar 25, 2019 at 9:56 AM David Howells <dhowells@redhat.com> wrote:
> Daniel Colascione <dancol@google.com> wrote:
>
> > System calls are cheap.
>
> Only to a point. x86_64 will have an issue when we hit syscall 512. We're
> currently at 427.
IIRC, a while ago, someone proposed restarting system call numbering
above (again, IIRC) 1024 for both 32- and 64-bit varieties to
establish a clean slate and sidestep this problem.
next prev parent reply other threads:[~2019-03-25 16:58 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-25 16:20 [PATCH 0/4] pid: add pidctl() Christian Brauner
2019-03-25 16:20 ` [PATCH 1/4] Make anon_inodes unconditional Christian Brauner
2019-03-25 16:20 ` [PATCH 2/4] pid: add pidctl() Christian Brauner
2019-03-25 17:20 ` Mika Penttilä
2019-03-25 19:59 ` Christian Brauner
2019-03-25 19:59 ` Christian Brauner
2019-03-25 18:18 ` Jann Horn
2019-03-25 18:18 ` Jann Horn
2019-03-25 19:58 ` Christian Brauner
2019-03-25 19:58 ` Christian Brauner
2019-03-26 16:07 ` Joel Fernandes
2019-03-26 16:07 ` Joel Fernandes
2019-03-26 16:15 ` Christian Brauner
2019-03-26 16:15 ` Christian Brauner
2019-03-25 16:20 ` [PATCH 3/4] signal: support pidctl() with pidfd_send_signal() Christian Brauner
2019-03-25 18:28 ` Jonathan Kowalski
2019-03-25 18:28 ` Jonathan Kowalski
2019-03-25 20:05 ` Christian Brauner
2019-03-25 20:05 ` Christian Brauner
2019-03-25 18:39 ` Jann Horn
2019-03-25 18:39 ` Jann Horn
2019-03-25 19:41 ` Christian Brauner
2019-03-25 19:41 ` Christian Brauner
2019-03-25 16:20 ` [PATCH 4/4] tests: add pidctl() tests Christian Brauner
2019-03-25 16:48 ` [PATCH 0/4] pid: add pidctl() Daniel Colascione
2019-03-25 16:48 ` Daniel Colascione
2019-03-25 17:05 ` Konstantin Khlebnikov
2019-03-25 17:07 ` Daniel Colascione
2019-03-25 17:07 ` Daniel Colascione
2019-03-25 17:36 ` Joel Fernandes
2019-03-25 17:36 ` Joel Fernandes
2019-03-25 17:53 ` Daniel Colascione
2019-03-25 17:53 ` Daniel Colascione
2019-03-25 18:19 ` Jonathan Kowalski
2019-03-25 18:19 ` Jonathan Kowalski
2019-03-25 18:57 ` Daniel Colascione
2019-03-25 18:57 ` Daniel Colascione
2019-03-25 19:42 ` Jonathan Kowalski
2019-03-25 19:42 ` Jonathan Kowalski
2019-03-25 20:14 ` Daniel Colascione
2019-03-25 20:14 ` Daniel Colascione
2019-03-25 20:34 ` Jann Horn
2019-03-25 20:34 ` Jann Horn
2019-03-25 20:40 ` Jonathan Kowalski
2019-03-25 20:40 ` Jonathan Kowalski
2019-03-25 21:14 ` Jonathan Kowalski
2019-03-25 21:14 ` Jonathan Kowalski
2019-03-25 21:15 ` Jann Horn
2019-03-25 21:15 ` Jann Horn
2019-03-25 20:40 ` Christian Brauner
2019-03-25 20:40 ` Christian Brauner
2019-03-25 20:15 ` Christian Brauner
2019-03-25 20:15 ` Christian Brauner
2019-03-25 21:11 ` Joel Fernandes
2019-03-25 21:11 ` Joel Fernandes
2019-03-25 21:17 ` Daniel Colascione
2019-03-25 21:17 ` Daniel Colascione
2019-03-25 21:19 ` Jann Horn
2019-03-25 21:19 ` Jann Horn
2019-03-25 21:43 ` Joel Fernandes
2019-03-25 21:43 ` Joel Fernandes
2019-03-25 21:54 ` Jonathan Kowalski
2019-03-25 21:54 ` Jonathan Kowalski
2019-03-25 22:07 ` Daniel Colascione
2019-03-25 22:07 ` Daniel Colascione
2019-03-25 22:37 ` Jonathan Kowalski
2019-03-25 22:37 ` Jonathan Kowalski
2019-03-25 23:14 ` Daniel Colascione
2019-03-25 23:14 ` Daniel Colascione
2019-03-26 3:03 ` Joel Fernandes
2019-03-26 3:03 ` Joel Fernandes
2019-03-25 16:56 ` David Howells
2019-03-25 16:56 ` David Howells
2019-03-25 16:58 ` Daniel Colascione [this message]
2019-03-25 16:58 ` Daniel Colascione
2019-03-25 23:39 ` Andy Lutomirski
2019-03-25 23:39 ` Andy Lutomirski
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