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Message-ID: <32970.80.144.43.225.1075549599.squirrel@www.lugor.de>
Date: Sat, 31 Jan 2004 12:46:39 +0100 (CET)
Subject: silly noise with module acpi/processor
From: "Christian Hesse" <mail@earthworm.de>
To: "Kernel Mailing List" <linux-kernel@vger.kernel.org>
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Hello!

I'm using Linux (kernel 2.6.2-rc3) on my Samsung X10 (Pentium M 1.4 GHz,
Centrino) notebook. If I boot the system without ac-adapter connected and
then modprobe the module processor the notebook makes a really silly
noise. The noise disappears with load (i.e.starting a program) but
reappears as soon as the processor ist idle again. Plugging in the
ac-adapter fixes the problem. Disconnecting the adapter is no problem.
Scaling down cpu-frequency makes the noise quiete, but it still resists.

rmmod processor brings an oops:
Oops: 0000 [#1]
CPU:    0
EIP:    0060:[<e1cdf28f>]    Tainted: P
EFLAGS: 00010296
EIP is at 0xe1cdf28f
eax: 00000000   ebx: 001bdf10   ecx: 00000008   edx: 00000000
esi: d36f92f8   edi: 001bd989   ebp: d36f9200   esp: c04c5fc0
ds: 007b   es: 007b   ss: 0068
Process swapper (pid: 0, threadinfo=c04c4000 task=c043a6e0)
Stack: 00099800 00000000 c04c4000 00099800 c0105000 0008e000 c0108a04
00000816
c04c6745 c043a6e0 00000000 c04e77e8 0000001b c04c6470 c04ef020 c010017e
Call Trace:
[<c0105000>] _stext+0x0/0x60
[<c0108a04>] cpu_idle+0x34/0x40
[<c04c6745>] start_kernel+0x185/0x1c0
[<c04c6470>] unknown_bootoption+0x0/0x120

Code:  Bad EIP value.
<0>Kernel panic: Attempted to kill the idle task!
In idle task - not syncing


Same behavior with 2.6.2-rc2 before the acpi update.

With 2.6.2-rc2-mm1 the noise still resists if I plug in the ac-adapter.

Let me know if you need additional information. Please cc me as I'm not
subscribed to the list.

-- 
Christian Hesse
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