From: "David S. Miller" <davem@davemloft.net>
To: Ingo Molnar <mingo@elte.hu>
Cc: mgross@linux.intel.com, rostedt@goodmis.org,
linux-kernel@vger.kernel.org, Mark_H_Johnson@raytheon.com
Subject: Re: queue_work from interrupt Real time preemption2.6.11-rc2-RT-V0.7.37-03
Date: Wed, 16 Feb 2005 08:11:43 -0800 [thread overview]
Message-ID: <20050216081143.50d0a9d6.davem@davemloft.net> (raw)
In-Reply-To: <20050216051645.GB15197@elte.hu>
On Wed, 16 Feb 2005 06:16:45 +0100
Ingo Molnar <mingo@elte.hu> wrote:
> Maybe the networking
> stack would break if we allowed the TIMER softirq (thread) to preempt
> the NET softirq (threads) (and vice versa)?
The major assumption is that softirq's run indivisibly per-cpu.
Otherwise the per-cpu queues of RX and TX packet work would
get corrupted.
See net/core/dev.c:softnet_data
next prev parent reply other threads:[~2005-02-16 16:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-14 20:40 Mark Gross
2005-02-14 21:24 ` Steven Rostedt
2005-02-14 22:29 ` Mark Gross
2005-02-15 10:41 ` Ingo Molnar
2005-02-15 18:06 ` Mark Gross
2005-02-16 5:16 ` Ingo Molnar
2005-02-16 16:11 ` David S. Miller [this message]
2005-02-16 17:59 ` George Anzinger
2005-02-16 22:55 ` Mark Gross
2005-02-16 18:02 ` Steven Rostedt
2005-02-17 7:57 ` Ingo Molnar
2005-02-17 15:13 ` Steven Rostedt
2005-02-17 7:52 ` Ingo Molnar
2005-02-17 14:57 ` Steven Rostedt
2005-02-17 16:14 ` Mark Gross
2005-03-29 8:57 ` Ingo Molnar
2005-03-31 18:41 ` Mark Gross
2005-04-01 5:55 ` Ingo Molnar
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