From: "Vegard Nossum" <vegard.nossum@gmail.com>
To: "Dmitry Adamushko" <dmitry.adamushko@gmail.com>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Paul Menage" <menage@google.com>,
"Max Krasnyansky" <maxk@qualcomm.com>,
"Paul Jackson" <pj@sgi.com>,
"Peter Zijlstra" <a.p.zijlstra@chello.nl>,
miaox@cn.fujitsu.com, rostedt@goodmis.org,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@elte.hu>,
"Linux Kernel" <linux-kernel@vger.kernel.org>
Subject: Re: current linux-2.6.git: cpusets completely broken
Date: Sun, 13 Jul 2008 01:25:02 +0200 [thread overview]
Message-ID: <19f34abd0807121625o81ad509g34cbce77d9e2a302@mail.gmail.com> (raw)
In-Reply-To: <b647ffbd0807121605y5caa4023v6578cfb17de103e3@mail.gmail.com>
On Sun, Jul 13, 2008 at 1:05 AM, Dmitry Adamushko
<dmitry.adamushko@gmail.com> wrote:
> Are you sure that you have removed my patch or the one from Miao? I
> would be really surprised if this patch works without them. Linus has
> updated sched_migrate_task() which is used _only_ by sched_exec() ---
> this is not the path that leads to this bug. try_to_wake_up() -> ...
> -> wake_idle() does not see "cpu_active_map".
Absolutely. I could have made an error somewhere along the way, of
course (yes, it does happen), but I am quite sure I did everything
correctly.
If you doubt it, you could try it too. All that is needed to reproduce
the original BUG here is CPUSETS=y and bring cpu1 down.
Vegard
--
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
-- E. W. Dijkstra, EWD1036
next prev parent reply other threads:[~2008-07-12 23:25 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-11 19:07 Vegard Nossum
2008-07-11 19:36 ` Paul Menage
2008-07-11 19:43 ` Vegard Nossum
2008-07-11 20:07 ` Max Krasnyansky
2008-07-11 23:03 ` Dmitry Adamushko
2008-07-11 23:19 ` Max Krasnyansky
2008-07-11 23:53 ` Dmitry Adamushko
2008-07-12 3:17 ` Vegard Nossum
2008-07-12 3:28 ` Linus Torvalds
2008-07-12 10:00 ` Miao Xie
2008-07-12 11:05 ` Dmitry Adamushko
2008-07-12 19:15 ` Linus Torvalds
2008-07-12 10:04 ` Dmitry Adamushko
2008-07-12 19:19 ` Max Krasnyansky
2008-07-12 20:10 ` Linus Torvalds
2008-07-12 21:30 ` Linus Torvalds
2008-07-12 22:07 ` Linus Torvalds
2008-07-12 22:43 ` Max Krasnyansky
2008-07-12 23:01 ` Linus Torvalds
2008-07-12 23:00 ` Vegard Nossum
2008-07-12 23:04 ` Linus Torvalds
2008-07-12 23:19 ` Dmitry Adamushko
2008-07-12 23:25 ` Dmitry Adamushko
2008-07-12 23:05 ` Dmitry Adamushko
2008-07-12 23:17 ` Linus Torvalds
2008-07-13 9:53 ` Dmitry Adamushko
2008-07-13 17:10 ` Linus Torvalds
2008-07-13 17:42 ` Ingo Molnar
2008-07-13 17:46 ` Linus Torvalds
2008-07-13 18:13 ` Dmitry Adamushko
2008-07-13 18:19 ` Ingo Molnar
2008-07-13 18:38 ` Linus Torvalds
2008-07-13 18:20 ` Linus Torvalds
2008-07-12 23:25 ` Vegard Nossum [this message]
2008-07-13 15:29 ` Andi Kleen
2008-07-14 15:49 ` Mike Travis
2008-07-14 22:38 ` Dmitry Adamushko
2008-07-14 23:05 ` Linus Torvalds
2008-07-15 0:00 ` Dmitry Adamushko
2008-07-15 0:23 ` Linus Torvalds
2008-07-15 2:21 ` Dmitry Adamushko
2008-07-15 3:03 ` Max Krasnyansky
2008-07-15 4:12 ` Linus Torvalds
2008-07-15 8:32 ` Ingo Molnar
2008-07-15 8:42 ` Max Krasnyansky
2008-07-15 8:57 ` Ingo Molnar
2008-07-15 9:12 ` Max Krasnyansky
2008-07-16 6:35 ` Max Krasnyansky
2008-07-16 7:10 ` Peter Zijlstra
2008-07-16 17:01 ` Max Krasnyansky
2008-07-15 3:23 ` Steven Rostedt
2008-07-15 3:36 ` Linus Torvalds
2008-07-15 3:47 ` Steven Rostedt
2008-07-15 4:04 ` Linus Torvalds
2008-07-15 4:16 ` Steven Rostedt
2008-07-12 10:45 Dmitry Adamushko
2008-07-12 11:14 ` Dmitry Adamushko
2008-07-13 0:10 ` Dmitry Adamushko
2008-07-13 8:50 ` Vegard Nossum
2008-07-13 9:41 ` Ingo Molnar
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