Hi
Just booted a 2.6.13 compiled with UP, ACPI, APIC, LAPIC, sensor modules
with "nolapic noapic acpi=off". The processor module was still loaded by
the hotplug. On rmmod it Oopsed:
Linux version 2.6.13 (gl@X) (gcc version 3.3.3 (SuSE Linux)) #10 Mon Sep 5 13:25:58 CEST 2005
...
Processor #0 6:13 APIC version 17
I/O APIC #2 Version 17 at 0xFEC00000.
Enabling APIC mode: Flat. Using 1 I/O APICs
Processors: 1
Allocating PCI resources starting at 0e000000 (gap: 0e000000:f0c00000)
Built 1 zonelists
Kernel command line: root=/dev/hda2 ro vga=785 acpi=off noapic nolapic
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
Initializing CPU#0
...
CPU: Intel(R) Celeron(R) M processor 1.00GHz stepping 08
...
ACPI: Subsystem revision 20050408
ACPI: Interpreter disabled.
...
shpchp: acpi_shpchprm:get_device PCI ROOT HID fail=0x1001
Unable to handle kernel NULL pointer dereference at virtual address 00000004
printing eip:
c020f944
*pde = 00000000
Oops: 0002 [#1]
Modules linked in: evdev snd_intel8x0 snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc pci_hotplug ehci_hcd autofs4 af_packet vfat fat e100 mii i2c_i801 i2c_core parport_pc parport ohci1394 ieee1394 usbhid uhci_hcd usbcore processor
CPU: 0
EIP: 0060:[<c020f944>] Not tainted VLI
EFLAGS: 00010246 (2.6.13)
EIP is at acpi_bus_unregister_driver+0x21/0x38
eax: 00000000 ebx: ce93d3c0 ecx: ccb09f68 edx: 00000000
esi: 00000000 edi: 00000880 ebp: ccb09f58 esp: ccb09f50
ds: 007b es: 007b ss: 0068
Process rmmod (pid: 2991, threadinfo=ccb08000 task=cd640530)
Stack: ce93d780 00000000 ccb09f60 ce93b058 ccb09fb4 c0133368 00000000 636f7270
6f737365 b7ef0072 b7efc000 ccb09fa0 c014cbdc b7efc000 b7efd000 cd3e1280
c139b074 cd3e1280 cd3e12b0 b7efc000 ccb09fb4 0014cc6d b7efc000 bfc13a98
Call Trace:
[<c0103db6>] show_stack+0xa6/0xb0
[<c0103f29>] show_registers+0x149/0x1c0
[<c010410b>] die+0xbb/0x140
[<c0117732>] do_page_fault+0x512/0x693
[<c0103a03>] error_code+0x4f/0x54
[<ce93b058>] acpi_processor_exit+0x1c/0x2e [processor]
[<c0133368>] sys_delete_module+0x138/0x150
[<c0102f59>] syscall_call+0x7/0xb
Code: 04 89 d0 e8 fd fe ff ff 5d c3 55 89 e5 56 31 f6 85 c0 53 89 c3 74 20 e8 56 ff ff ff 8b 83 a8 00 00 00 85 c0 75 16 8b 53 04 8b 03 <89> 50 04 89 02 89 5b 04 89 1b eb 05 be ea ff ff ff 5b 89 f0 5e
Thanks
Guennadi
---------------------------------
Guennadi Liakhovetski, Ph.D.
DSA Daten- und Systemtechnik GmbH
Pascalstr. 28
D-52076 Aachen
Germany
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