Unable to handle kernel NULL pointer dereference at virtual address 00000009

Unable to handle kernel NULL pointer dereference at virtual address 00000009

[Yves Crespin]

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I have a lot of trouble on machines with USB disk.
Some time process which access to this disk are blocked and shutdown command don't stop the system (unable to remove usb-uhci module).

I'm using 2.4.26 kernel

Do you need more information ?

To solve my problem, is it possible to take usb module from 2.4.30 ?

Thanks,

 Yves

<6>usb.c: USB disconnect on device 00:07.3-0 address 1
<1>Unable to handle kernel NULL pointer dereference at virtual address 00000009
<4> printing eip:
<4>d0d04bf2
<1>*pde = 00000000
<4>Oops: 0000
<4>CPU:    0
<4>EIP:    0010:[<d0d04bf2>]    Not tainted
<4>EFLAGS: 00010246
<4>eax: ceb9da00   ebx: 00000001   ecx: fffffffd   edx: d0d08bec
<4>esi: 00000000   edi: c84200fb   ebp: 00000000   esp: cd4e5ef8
<4>ds: 0018   es: 0018   ss: 0018
<4>Process maitre (pid: 686, stackpage=cd4e5000)
<4>Stack: 00000000 ce5fd200 c8421f00 00000000 00000000 d0d04e5c 00000000 c84200d4 
<4>       c8421f00 ceb9da00 00000001 c8421f00 c8420071 c8420000 ce5fd200 d0d04fa9 
<4>       c8420071 c8421f00 ce5fd200 ce72d144 000000dd cdf8c370 d0d09d80 00000000 
<4>Call Trace:    [<d0d04e5c>] [<d0d04fa9>] [<d0d09d80>] [<d0d051a6>] [<c0131c16>]
<4>  [<c0108843>]
<4>
<4>Code: 3b 73 08 7d 23 3b 7c 24 20 77 94 56 53 8b 54 24 28 52 57 8b 
<4> <4>usb-uhci.c: interrupt, status 20, frame# 0
<6>usb.c: USB bus 2 deregistered


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Re: Unable to handle kernel NULL pointer dereference at virtual address 00000009

[randy_dunlap]

On Tue, 17 May 2005 09:01:41 +0200 Yves Crespin wrote:

| I have a lot of trouble on machines with USB disk.
| Some time process which access to this disk are blocked and shutdown command don't stop the system (unable to remove usb-uhci module).
| 
| I'm using 2.4.26 kernel
| 
| Do you need more information ?

Unless someone recognizes this as a known problem, it would help to
have a proper bug report, as described in
linux/REPORTING-BUGS .

Thanks,
~Randy


| To solve my problem, is it possible to take usb module from 2.4.30 ?
| 
| Thanks,
| 
|  Yves
| 
| <6>usb.c: USB disconnect on device 00:07.3-0 address 1
| <1>Unable to handle kernel NULL pointer dereference at virtual address 00000009
| <4> printing eip:
| <4>d0d04bf2
| <1>*pde = 00000000
| <4>Oops: 0000
| <4>CPU:    0
| <4>EIP:    0010:[<d0d04bf2>]    Not tainted
| <4>EFLAGS: 00010246
| <4>eax: ceb9da00   ebx: 00000001   ecx: fffffffd   edx: d0d08bec
| <4>esi: 00000000   edi: c84200fb   ebp: 00000000   esp: cd4e5ef8
| <4>ds: 0018   es: 0018   ss: 0018
| <4>Process maitre (pid: 686, stackpage=cd4e5000)
| <4>Stack: 00000000 ce5fd200 c8421f00 00000000 00000000 d0d04e5c 00000000 c84200d4 
| <4>       c8421f00 ceb9da00 00000001 c8421f00 c8420071 c8420000 ce5fd200 d0d04fa9 
| <4>       c8420071 c8421f00 ce5fd200 ce72d144 000000dd cdf8c370 d0d09d80 00000000 
| <4>Call Trace:    [<d0d04e5c>] [<d0d04fa9>] [<d0d09d80>] [<d0d051a6>] [<c0131c16>]
| <4>  [<c0108843>]
| <4>
| <4>Code: 3b 73 08 7d 23 3b 7c 24 20 77 94 56 53 8b 54 24 28 52 57 8b 
| <4> <4>usb-uhci.c: interrupt, status 20, frame# 0
| <6>usb.c: USB bus 2 deregistered