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Subjectv2.5.31 handle_scancode oops
When booting with only the serial console enabled, pressing Ctrl-Scroll 
Lock kills the system with the following oops. Whoever has been working
on the console code might be interested in fixing this.


ksymoops 2.4.4 on i686 2.4.18-5smp. Options used
-v vmlinux (specified)
-K (specified)
-L (specified)
-O (specified)
-m (specified)

Unable to handle kernel paging request at virtual address 646d203c
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c01bc05d>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010086
eax: 646d2030 ebx: c7b74000 ecx: 00000000 edx: c035d5a0
esi: 0000001d edi: 00000001 ebp: c11610e0 esp: c77f5f2c
ds: 0018 es: 0018 ss: 0018
Stack: c035d5a0 611d0000 00000000 0000001d 0000270f c77f5fc4 c01bc4e7 0000001d
00000001 3d52d215 00000000 0001041e 00000000 c77f5f7c 40012020 bffff550
bffff5c8 c1166580 00000001 00000001 c01bc54f c0108a8a 00000001 00000000
Call Trace: [<c01bc4e7>] [<c01bc54f>] [<c0108a8a>] [<c0108be8>] [<c0107754>]
Code: f6 40 0c 08 75 15 53 ff 53 7c 5a 85 c0 0f 85 bf 00 00 00 a1

>>EIP; c01bc05d <handle_scancode+15d/250> <=====
Trace; c01bc4e7 <handle_kbd_event+137/190>
Trace; c01bc54f <keyboard_interrupt+f/20>
Trace; c0108a8a <handle_IRQ_event+3a/60>
Trace; c0108be8 <do_IRQ+78/e0>
Trace; c0107754 <common_interrupt+18/20>
Code; c01bc05d <handle_scancode+15d/250>
00000000 <_EIP>:
Code; c01bc05d <handle_scancode+15d/250> <=====
0: f6 40 0c 08 testb $0x8,0xc(%eax) <=====
Code; c01bc061 <handle_scancode+161/250>
4: 75 15 jne 1b <_EIP+0x1b> c01bc078 <handle_scancode+178/250>
Code; c01bc063 <handle_scancode+163/250>
6: 53 push %ebx
Code; c01bc064 <handle_scancode+164/250>
7: ff 53 7c call *0x7c(%ebx)
Code; c01bc067 <handle_scancode+167/250>
a: 5a pop %edx
Code; c01bc068 <handle_scancode+168/250>
b: 85 c0 test %eax,%eax
Code; c01bc06a <handle_scancode+16a/250>
d: 0f 85 bf 00 00 00 jne d2 <_EIP+0xd2> c01bc12f <handle_scancode+22f/250>
Code; c01bc070 <handle_scancode+170/250>
13: a1 00 00 00 00 mov 0x0,%eax

<0>Kernel panic: Aiee, killing interrupt handler!

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