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From: Steven Rostedt <rostedt@goodmis.org>
To: "Paul E. McKenney" <paulmck@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	RT <linux-rt-users@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [BUG  RT] - rcupreempt.c:133 on 2.6.23-rc1-rt7
Date: Sun, 05 Aug 2007 00:51:24 -0400	[thread overview]
Message-ID: <1186289484.636.5.camel@localhost.localdomain> (raw)

Why is it, that every time I go to write examples for my chapter in a
book, that I hit a bug!

I got this on bootup of my Thinkpad G41 running SMP.

Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
WARNING: at kernel/rcupreempt.c:133 __rcu_read_lock()
 [<c010557a>] show_trace_log_lvl+0x35/0x54
 [<c01061bd>] show_trace+0x2c/0x2e
 [<c01061e8>] dump_stack+0x29/0x2b
 [<c01660d9>] __rcu_read_lock+0x13f/0x14e
 [<c02f61fd>] ip_local_deliver+0x73/0x2b6
 [<c02f5e74>] ip_rcv+0x2d8/0x5ee
 [<c02d4324>] netif_receive_skb+0x2b7/0x3fc
 [<c02d68b4>] process_backlog+0xb0/0x148
 [<c02d6b6a>] net_rx_action+0xe0/0x1dd
 [<c01311a8>] ksoftirqd+0x126/0x240
 [<c013f9d2>] kthread+0x44/0x69
 [<c0105147>] kernel_thread_helper+0x7/0x10
 =======================


I don't have time to look further now, and it's something that isn't
easily reproducible (Well, it happened once out of two boots). If you
need me to look further, or need a config or dmesg (I have both), then
just give me a holler.

-- Steve



             reply	other threads:[~2007-08-05  4:51 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-05  4:51 Steven Rostedt [this message]
2007-08-05  5:05 ` [BUG RT] - rcupreempt.c:133 on 2.6.23-rc1-rt7 Steven Rostedt
2007-08-05  6:59   ` Ingo Molnar
2007-08-05 14:24     ` Steven Rostedt
2007-08-05 15:04       ` Paul E. McKenney
2007-08-05 15:35         ` [PATCH RT] put in a relatively high number for rcu read lock upper limit Steven Rostedt
2007-08-05 17:53           ` Ingo Molnar
2007-08-05 17:58             ` Steven Rostedt
2007-08-06  3:20             ` Paul E. McKenney
2007-08-05 15:26       ` [BUG RT] - rcupreempt.c:133 on 2.6.23-rc1-rt7 Ingo Molnar

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