From: Maksim Krasnyanskiy <maxk@qualcomm.com>
To: kuznet@ms2.inr.ac.ru
Cc: andrea@suse.de, linux-kernel@vger.kernel.org
Subject: Re: 2.4.7 softirq incorrectness.
Date: Fri, 27 Jul 2001 12:21:46 -0700 [thread overview]
Message-ID: <4.3.1.0.20010727121014.055d4c90@mail1> (raw)
In-Reply-To: <200107271859.WAA24210@ms2.inr.ac.ru>
In-Reply-To: <4.3.1.0.20010727112236.03454b30@mail1>
> > Also it doesn't fix the scenario that I described (reschedule while running). I'm still wondering why don't I hit that trylock/BUG
> > in tasklet_action.
>
>How old the problem is ? Was it always present ?
That's a good question. Data ordering check in Bluetooth tools was introduced pretty recently.
So, before 2.4.7 I wasn't paying attention to it and there for didn't notice any problems with
tasklets.
>To be honest, this is too strong bug to believe to this at all. :-)
:) Agree. But I checked all my code, tx_task is called from tasklet only. And I do see that it's getting run on several
cpus at the same time.
Also don't you agree with that it's possible (at least in theory) to hit that trylock/BUG in tasklet_action ?
Max
Maksim Krasnyanskiy
Senior Kernel Engineer
Qualcomm Incorporated
maxk@qualcomm.com
http://bluez.sf.net
http://vtun.sf.net
next prev parent reply other threads:[~2001-07-27 19:21 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-22 20:44 Rusty Russell
2001-07-22 23:34 ` Andrea Arcangeli
2001-07-23 9:06 ` Rusty Russell
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
2001-07-23 9:25 ` Kai Germaschewski
2001-07-23 11:12 ` Jeff Garzik
2001-07-23 14:18 ` Andrea Arcangeli
2001-07-23 12:05 ` David S. Miller
2001-07-23 14:31 ` 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 18:31 ` Maksim Krasnyanskiy
2001-07-27 18:59 ` kuznet
2001-07-27 19:21 ` Maksim Krasnyanskiy [this message]
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 0:47 ` Maksim Krasnyanskiy
2001-07-27 15:01 ` Andrea Arcangeli
2001-07-27 9:34 ` David S. Miller
2001-07-27 17:01 ` kuznet
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