Hi,
This OOPS is highly reproducible. I have an ORB drive that
I am accessing using an OHCI hub. I load usb-storage,
mount the drive and then start three simultaneous reads of
very large files in seperate shell processes.
My machine is an Uniprocessor Athlon 850 MHz box.
The error spat out before the OOPS was:
io mapaddr 0xb4d081d4 not valid at usb-ohci.c: 1363!
Unable to handle kernel paging request at virtual address 34d081d4
c01a8301\*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c01a8301>]
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010292
eax: 34d081d4 ebx: 00000068 ecx: 00000094 edx: 00000000
esi: 0000000c edi: 00000061 epb: 00000001 esp: c0235f08
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, stackpage=c0235000)
Stack: cffd3c00 c01a83d0 c0266180 c02c0380 00000001 c0235f28 00001aef 00000080
ffff0200 ffff0fff ffffffff cffcc001 c148b248 00000001 cffd3c00 c011f229
cffd3c00 00000000 00000000 c0266180 c02c0380 c011c2fb 00000000 c011c248
c01a83d0 ffff0200 ffff0fff c011f229 c011c2fb c011c248 c011c13f
c010c114 c0108b20 c0108b20 c010b034 c0108b20 c0108b20 c0108b43 c0108b92
c0105000 c010018d
Code: 8b 00 89 da a9 00 00 1f 00 74 14 b8 01 00 00 00 89 e9 d3 e0
>>EIP; c01a8301 <rh_send_irq+c1/190> <=====
Code; c01a8301 <rh_send_irq+c1/190>
00000000 <_EIP>:
Code; c01a8301 <rh_send_irq+c1/190> <=====
0: 8b 00 mov (%eax),%eax <=====
Code; c01a8303 <rh_send_irq+c3/190>
2: 89 da mov %ebx,%edx
Code; c01a8305 <rh_send_irq+c5/190>
4: a9 00 00 1f 00 test $0x1f0000,%eax
Code; c01a830a <rh_send_irq+ca/190>
9: 74 14 je 1f <_EIP+0x1f> c01a8320 <rh_send_irq+e0/190>
Code; c01a830c <rh_send_irq+cc/190>
b: b8 01 00 00 00 mov $0x1,%eax
Code; c01a8311 <rh_send_irq+d1/190>
10: 89 e9 mov %ebp,%ecx
Code; c01a8313 <rh_send_irq+d3/190>
12: d3 e0 shl %cl,%eax
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