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SubjectOops with usbcore, acm, and usb-ohci in schedule()
Hi everyone.  Been trying to get my 3Com USR 56K Voice Faxmodem Pro to
work USB on my Asus P5A (Aladdin V chipset) system. Still haven't gotten
(there's your American word Alan ;) it to work, but keep getting bitten by
a kernel oops. I'm including the output of ksymoops for your enjoyment ;)
Any ideas?

Thanks, and let me know if I need to give any more info!
Bruce

ksymoops 0.7c on i586 2.3.18ac10. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.3.18ac10/ (default)
-m /boot/System.map (specified)

Warning (compare_ksyms_lsmod): module awe_wave is in lsmod but not in ksyms, probably no symbols exported
Unable to handle kernel NULL pointer dereference at virtual address 00000000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c0111aba>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010086
eax: 00000018 ebx: c0269e2c ecx: c025334c edx: c75ce000
esi: 000033e6 edi: c0268000 ebp: c0269e18 esp: c0269de4
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c0269000)
Stack: 000033e6 c0269e88 0000000a c0268000 00000000 00000000 c02bfa80 00000005
00000217 00000005 00000000 c0268000 c0269e2c c0269e40 c011163e c0269e2c
c0269e80 00000086 00000000 c025319c 000033e6 c0268000 c0111290 c0269e80
Call Trace: [<c011163e>] [<c0111290>] [<c80644ca>] [<c806b000>] [<c806b028>] [<c806b000>] [<c8069320>]
[<c8069320>] [<c8064596>] [<c806b000>] [<c80679a0>] [<c8064644>] [<c806b000>] [<c80646f9>] [<c806514f>]
[<c806b000>] [<c80620a0>] [<c806577b>] [<c805aa30>] [<c80612c5>] [<c806640b>] [<c8062020>] [<c806b00c>]
[<c80664ed>] [<c806b000>] [<c806b014>] [<c806b010>] [<c010b38f>] [<c010b51b>] [<c1016000>] [<c010a6cc>]
[<c0106000>] [<c0108ad4>] [<c0106000>] [<c0100176>]
Code: c7 05 00 00 00 00 00 00 00 00 8d 65 c8 5b 5e 5f 89 ec 5d c3

>>EIP; c0111aba <schedule+452/468> <=====
Trace; c011163e <schedule_timeout+66/88>
Trace; c0111290 <process_timeout+0/10>
Trace; c80644ca <END_OF_CODE+3f62a/????>
Trace; c806b000 <END_OF_CODE+46160/????>
Trace; c806b028 <END_OF_CODE+46188/????>
Trace; c806b000 <END_OF_CODE+46160/????>
Trace; c8069320 <END_OF_CODE+44480/????>
Trace; c8069320 <END_OF_CODE+44480/????>
Trace; c8064596 <END_OF_CODE+3f6f6/????>
Trace; c806b000 <END_OF_CODE+46160/????>
Trace; c80679a0 <END_OF_CODE+42b00/????>
Trace; c8064644 <END_OF_CODE+3f7a4/????>
Trace; c806b000 <END_OF_CODE+46160/????>
Trace; c80646f9 <END_OF_CODE+3f859/????>
Trace; c806514f <END_OF_CODE+402af/????>
Trace; c806b000 <END_OF_CODE+46160/????>
Trace; c80620a0 <END_OF_CODE+3d200/????>
Trace; c806577b <END_OF_CODE+408db/????>
Trace; c805aa30 <END_OF_CODE+35b90/????>
Trace; c80612c5 <END_OF_CODE+3c425/????>
Trace; c806640b <END_OF_CODE+4156b/????>
Trace; c8062020 <END_OF_CODE+3d180/????>
Trace; c806b00c <END_OF_CODE+4616c/????>
Trace; c80664ed <END_OF_CODE+4164d/????>
Trace; c806b000 <END_OF_CODE+46160/????>
Trace; c806b014 <END_OF_CODE+46174/????>
Trace; c806b010 <END_OF_CODE+46170/????>
Trace; c010b38f <handle_IRQ_event+2f/64>
Trace; c010b51b <do_IRQ+6f/b8>
Trace; c1016000 <_end+d55e5c/7d45eac>
Trace; c010a6cc <ret_from_intr+0/20>
Trace; c0106000 <get_option+0/4c>
Trace; c0108ad4 <cpu_idle+34/54>
Trace; c0106000 <get_option+0/4c>
Trace; c0100176 <L6+0/2>
Code; c0111aba <schedule+452/468>
00000000 <_EIP>:
Code; c0111aba <schedule+452/468> <=====
0: c7 05 00 00 00 00 00 movl $0x0,0x0 <=====
Code; c0111ac1 <schedule+459/468>
7: 00 00 00
Code; c0111ac4 <schedule+45c/468>
a: 8d 65 c8 leal 0xffffffc8(%ebp),%esp
Code; c0111ac7 <schedule+45f/468>
d: 5b popl %ebx
Code; c0111ac8 <schedule+460/468>
e: 5e popl %esi
Code; c0111ac9 <schedule+461/468>
f: 5f popl %edi
Code; c0111aca <schedule+462/468>
10: 89 ec movl %ebp,%esp
Code; c0111acc <schedule+464/468>
12: 5d popl %ebp
Code; c0111acd <schedule+465/468>
13: c3 ret


1 warning issued. Results may not be reliable.


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