[Bluez-devel] Oops with 2.6.5-mh3

[Bluez-devel] Oops with 2.6.5-mh3

[Matthias Thomae]

Hello Marcel et al,

I get a kernel Oops with 2.6.5-mh3 (with and without preempt) and an 
Acer BT-700 USB dongle on a Vaio Notebook, not when unplugging it, but 
when plugging it back in.

 > lspci
...
00:07.2 USB Controller: Intel Corp. 82371AB PIIX4 USB (rev 01)
...

Anything I can do?

Regards.
Matthias

-----------------------------------------------------------------

Unable to handle kernel NULL pointer dereference at virtual address 00000004
  printing eip:
d10b7e64
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
CPU:    0
EIP:    0060:[pg0+281624164/1069391872]    Not tainted
EFLAGS: 00010292   (2.6.5-mh3)
EIP is at usb_disable_interface+0x14/0x50 [usbcore]
eax: cf6544c0   ebx: 00000000   ecx: cf806000   edx: cffef0a0
esi: 00000001   edi: 00000000   ebp: cfe10000   esp: cf807d1c
ds: 007b   es: 007b   ss: 0068
Process khubd (pid: 70, threadinfo=cf806000 task=cf80b1a0)
Stack: 00001388 0000a48c 00000002 00000001 cf95a6d0 cfe10000 d10b8158 
cfe10000
        cf6544c0 0000000b 00000001 00000002 00000001 00000000 00000000 
00001388
        00000000 cf6544c0 00000000 cf95a820 cf95a8d8 c8168e60 d110ab4c 
cfe10000
Call Trace:
  [pg0+281624920/1069391872] usb_set_interface+0xb8/0x1c0 [usbcore]
  [pg0+281963340/1069391872] hci_usb_probe+0x23c/0x4b0 [hci_usb]
  [__wake_up_common+58/112] __wake_up_common+0x3a/0x70
  [dput+49/544] dput+0x31/0x220
  [pg0+281596121/1069391872] usb_probe_interface+0xb9/0xe0 [usbcore]
  [bus_match+63/112] bus_match+0x3f/0x70
  [device_attach+79/160] device_attach+0x4f/0xa0
  [bus_add_device+91/160] bus_add_device+0x5b/0xa0
  [device_add+161/304] device_add+0xa1/0x130
  [pg0+281626005/1069391872] usb_set_configuration+0x235/0x2e0 [usbcore]
  [pg0+281600847/1069391872] usb_new_device+0x2df/0x5c0 [usbcore]
  [pg0+281609143/1069391872] hub_port_connect_change+0x1d7/0x2e0 [usbcore]
  [pg0+281610340/1069391872] hub_events+0x3a4/0x470 [usbcore]
  [pg0+281610597/1069391872] hub_thread+0x35/0x110 [usbcore]
  [ret_from_fork+6/20] ret_from_fork+0x6/0x14
  [default_wake_function+0/32] default_wake_function+0x0/0x20
  [pg0+281610544/1069391872] hub_thread+0x0/0x110 [usbcore]
  [kernel_thread_helper+5/24] kernel_thread_helper+0x5/0x18

Code: 80 7b 04 00 74 26 31 f6 8d 74 26 00 8b 43 0c 47 0f b6 44 30




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Re: [Bluez-devel] Oops with 2.6.5-mh3

[Marcel Holtmann]

Hi Matthias,

> I get a kernel Oops with 2.6.5-mh3 (with and without preempt) and an 
> Acer BT-700 USB dongle on a Vaio Notebook, not when unplugging it, but 
> when plugging it back in.

check the latest 2.6.6-rc or Bitkeeper snapshots, because there are many
USB patches that are not merged into 2.6.5. If it still fails send a
report the USB mailing list, because I don't think that this is our
fault.

Regards

Marcel




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Re: [Bluez-devel] Oops with 2.6.5-mh3

[Marcel Holtmann]

Hi Nicholas,

> The problem was already submitted to lkml (i found at least 3reports) 
> and one time declared impossible by Andrew Morton. I can't reproduce
> this error with 2.6.6-rc1 because, the usb dongle ain't even working
> at all. It seems USB is a bit messed up in that release.

for me it looks like that the hci_usb driver hits some bugs in the
current USB subsystem, but Alan Stern is going to fix them all. Please
work with him to fix them. If we need to change something on our side,
he will send me a patch and I'll include it.

> In 2.6.5 there is an easy workaround. If you don't need the hci_usb 
> SCO (CONFIG_BT_HCIUSB_SCO) support, disable it in your kernelconfig. 

Do this also work for 2.6.6-rcX?

Regards

Marcel




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Re: [Bluez-devel] Oops with 2.6.5-mh3

[Simone Gotti]

On Saturday 17 April 2004 11:24, Nicholas A. Preyss wrote:
> On  0, Marcel Holtmann <marcel@holtmann.org> wrote:
> > > I get a kernel Oops with 2.6.5-mh3 (with and without preempt) and an
> > > Acer BT-700 USB dongle on a Vaio Notebook, not when unplugging it, but
> > > when plugging it back in.
> >
> > check the latest 2.6.6-rc or Bitkeeper snapshots, because there are many
> > USB patches that are not merged into 2.6.5. If it still fails send a
> > report the USB mailing list, because I don't think that this is our
> > fault.
>
> The problem was already submitted to lkml (i found at least 3reports)
> and one time declared impossible by Andrew Morton. I can't reproduce
> this error with 2.6.6-rc1 because, the usb dongle ain't even working
> at all. It seems USB is a bit messed up in that release.
> In 2.6.5 there is an easy workaround. If you don't need the hci_usb
> SCO (CONFIG_BT_HCIUSB_SCO) support, disable it in your kernelconfig.

Hi,

For the problem that the usb dongle doesn't work anymore with 2.6.6-rc1, After 
some times I've found the patch that caused the problem and Alan Stern, 
yesterday, sent me a patch that made it work.

The path is here:
http://marc.theaimsgroup.com/?l=linux-usb-devel&m=108214198732679&w=2

I hope this can help.

Bye!
-- 
Simone Gotti
<simone.gotti@email.it>


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Re: [Bluez-devel] Oops with 2.6.5-mh3

[Nicholas A. Preyss]

On  0, Marcel Holtmann <marcel@holtmann.org> wrote:
> > I get a kernel Oops with 2.6.5-mh3 (with and without preempt) and an 
> > Acer BT-700 USB dongle on a Vaio Notebook, not when unplugging it, but 
> > when plugging it back in.
> 
> check the latest 2.6.6-rc or Bitkeeper snapshots, because there are many
> USB patches that are not merged into 2.6.5. If it still fails send a
> report the USB mailing list, because I don't think that this is our
> fault.

The problem was already submitted to lkml (i found at least 3reports) 
and one time declared impossible by Andrew Morton. I can't reproduce
this error with 2.6.6-rc1 because, the usb dongle ain't even working
at all. It seems USB is a bit messed up in that release.
In 2.6.5 there is an easy workaround. If you don't need the hci_usb 
SCO (CONFIG_BT_HCIUSB_SCO) support, disable it in your kernelconfig. 

nicholas


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