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Date: Wed, 5 Nov 2008 10:13:14 +0100
From: Folkert van Heusden <folkert@vanheusden.com>
To: linux-kernel@vger.kernel.org
Subject: [2.6.18] BUG: warning at kernel/cpu.c:51/unlock_cpu_hotplug()
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Hi,

While running 2.6.18 on an IBM x3650 with nothing but setiathome (there
are 2 quadcores and 10GB ram in this device) I get the following errors:

BUG: warning at kernel/cpu.c:51/unlock_cpu_hotplug()

Call Trace:
 [<ffffffff80293ed7>] unlock_cpu_hotplug+0x3f/0x6c
 [<ffffffff8822f2a7>] :cpufreq_ondemand:do_dbs_timer+0x119/0x171
 [<ffffffff80249150>] run_workqueue+0x94/0xe5
 [<ffffffff80245b22>] worker_thread+0x0/0x122
 [<ffffffff8028f8fc>] keventd_create_kthread+0x0/0x61
 [<ffffffff80245c12>] worker_thread+0xf0/0x122
 [<ffffffff8027c9b3>] default_wake_function+0x0/0xe
 [<ffffffff8028f8fc>] keventd_create_kthread+0x0/0x61
 [<ffffffff8028f8fc>] keventd_create_kthread+0x0/0x61
 [<ffffffff802305dc>] kthread+0xd4/0x107
 [<ffffffff80258aa0>] child_rip+0xa/0x12
 [<ffffffff8028f8fc>] keventd_create_kthread+0x0/0x61
 [<ffffffff80230508>] kthread+0x0/0x107
 [<ffffffff80258a96>] child_rip+0x0/0x12

errors: they come by regularly, like 25 times in the 56 minutes this
system has been up.


Folkert van Heusden

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