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From: Rusty Russell <rusty@rustcorp.com.au>
To: Andrea Arcangeli <andrea@suse.de>
Cc: torvalds@transmeta.com, linux-kernel@vger.kernel.org
Subject: Re: 2.4.7 softirq incorrectness.
Date: Fri, 27 Jul 2001 06:26:54 +1000	[thread overview]
Message-ID: <E15Pril-0004aT-00@localhost> (raw)
In-Reply-To: Your message of "Wed, 25 Jul 2001 21:33:51 +0200." <20010725213351.A32148@athlon.random>

In message <20010725213351.A32148@athlon.random> you write:
> You are wrong, please check again all the code involved.

Apologies: you are absolutely correct, disregard my crap patch.
local_irq_save does not inc local_irq_count, unlike local_bh_disable.
Oops.

> do_softirq can be re-entered but on re-entry it will return immediatly

"immediately" leaves a narrow window.  Sure, it'd be really hard to
hit, but it's still there.

Rusty.
--
Premature optmztion is rt of all evl. --DK

  reply	other threads:[~2001-07-26 22:25 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-07-22 20:44 2.4.7 softirq incorrectness Rusty Russell
2001-07-22 23:34 ` Andrea Arcangeli
2001-07-23  9:06   ` Rusty Russell
2001-07-23 12:05     ` David S. Miller
2001-07-23 14:31       ` Andrea Arcangeli
2001-07-23 14:29     ` Andrea Arcangeli
2001-07-24  9:35       ` Rusty Russell
2001-07-25 19:33         ` Andrea Arcangeli
2001-07-26 20:26           ` Rusty Russell [this message]
2001-07-23  9:25   ` Kai Germaschewski
2001-07-23 11:12     ` Jeff Garzik
2001-07-23 14:18     ` Andrea Arcangeli
2001-07-23 22:24   ` Alexey Kuznetsov
2001-07-25 22:23     ` Andrea Arcangeli
2001-07-26 17:46       ` kuznet
2001-07-26 18:03         ` Jeff Garzik
2001-07-26 18:29         ` Andrea Arcangeli
2001-07-27 16:48           ` kuznet
2001-07-27  0:47         ` Maksim Krasnyanskiy
2001-07-27 15:01           ` Andrea Arcangeli
2001-07-27 18:31           ` Maksim Krasnyanskiy
2001-07-27 18:59             ` kuznet
2001-07-27 19:21             ` Maksim Krasnyanskiy
2001-07-27 19:35               ` kuznet
2001-07-28  0:52               ` [PATCH] [IMPORTANT] " Maksim Krasnyanskiy
2001-07-28 17:41                 ` kuznet
2001-07-28 18:02                   ` Andrea Arcangeli
2001-07-28 19:02                     ` kuznet
2001-07-28 19:32                       ` Andrea Arcangeli
2001-07-28 23:28                         ` Alexey Kuznetsov
2001-07-29 17:07                           ` Linus Torvalds
2001-07-29 17:52                             ` kuznet
2001-07-30 18:50                               ` Ingo Molnar
2001-07-30 22:47                                 ` Nigel Gamble
2001-07-30 22:56                                   ` Christoph Hellwig
2001-07-31 18:08                                 ` kuznet
2001-07-28 17:54                 ` Andrea Arcangeli
2001-07-28 19:17                   ` Andrea Arcangeli
2001-07-30 18:32                 ` Maksim Krasnyanskiy
2001-07-27  9:34         ` David S. Miller
2001-07-27 17:01           ` kuznet

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