[Bluez-users] Btsco refuse to hibernate

[Bluez-users] Btsco refuse to hibernate

[Administrator TOOTAI]

Hi all,

I face a problem using Suspend2+hibernate with snd-bt-sco and latest 
2.6.15-4 from Debian SID.

Feb 21 21:29:32 nomade kernel: Stopping tasks failed.
Feb 21 21:29:32 nomade kernel: Tasks that refused to be refrigerated and 
haven't since exited:
Feb 21 21:29:32 nomade kernel:  - snd-bt-scod (#2708) signalled and todo 
list empty.

Thanks for any hint.

-- 
Daniel


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Re: [Bluez-users] Btsco refuse to hibernate

[Brad Midgley]

Hi

This is a known problem. It sounds like stopping the btsco userspace app
first doesn't necessarily help (but it might). We might just be missing
something small... we need help here from someone who is motivated to
dig into the problem.

Brad

> I face a problem using Suspend2+hibernate with snd-bt-sco and latest
> 2.6.15-4 from Debian SID.
> 
> Feb 21 21:29:32 nomade kernel: Stopping tasks failed.
> Feb 21 21:29:32 nomade kernel: Tasks that refused to be refrigerated and
> haven't since exited:
> Feb 21 21:29:32 nomade kernel:  - snd-bt-scod (#2708) signalled and todo
> list empty.
> 
> Thanks for any hint.
> 



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Re: [Bluez-users] Btsco refuse to hibernate

[John McCabe-Dansted]

I found that killing all running kmix processes allowed me to shutdown.
this can be done by typing from the command line:
        killall kmix
        killall -9 kmix

Does this help? What desktop are you using? (E.g. KDE or Gnome)

On 2/22/06, Administrator TOOTAI <admin@tootai.net> wrote:
> Hi all,
>
> I face a problem using Suspend2+hibernate with snd-bt-sco and latest
> 2.6.15-4 from Debian SID.
>
> Feb 21 21:29:32 nomade kernel: Stopping tasks failed.
> Feb 21 21:29:32 nomade kernel: Tasks that refused to be refrigerated and
> haven't since exited:
> Feb 21 21:29:32 nomade kernel:  - snd-bt-scod (#2708) signalled and todo
> list empty.

--
John C. McCabe-Dansted
Master's Student


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Re: [Bluez-users] Btsco refuse to hibernate

[Administrator TOOTAI]

John McCabe-Dansted a =E9crit :

>I found that killing all running kmix processes allowed me to shutdown.
>this can be done by typing from the command line:
>        killall kmix
>        killall -9 kmix
>
>Does this help? What desktop are you using? (E.g. KDE or Gnome)
> =20
>
I killed all stuff concerning sound, it change nothing.

Brad: who could be able to help us to solve the problem? If I good=20
remember, 2.6.14 or earlier 2.6.15 had'nt have the problem. Could it be=20
related to the modification made in btsco version 1.9 (begining of month)=
?

>On 2/22/06, Administrator TOOTAI <admin@tootai.net> wrote:
> =20
>
>>Hi all,
>>
>>I face a problem using Suspend2+hibernate with snd-bt-sco and latest
>>2.6.15-4 from Debian SID.
>>
>>Feb 21 21:29:32 nomade kernel: Stopping tasks failed.
>>Feb 21 21:29:32 nomade kernel: Tasks that refused to be refrigerated an=
d
>>haven't since exited:
>>Feb 21 21:29:32 nomade kernel:  - snd-bt-scod (#2708) signalled and tod=
o
>>list empty.
>>   =20
>>
--=20
Daniel


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Re: [Bluez-users] Btsco refuse to hibernate

[Brad Midgley]

Hi

> I killed all stuff concerning sound, it change nothing.
> 
> Brad: who could be able to help us to solve the problem? If I good
> remember, 2.6.14 or earlier 2.6.15 had'nt have the problem. Could it be
> related to the modification made in btsco version 1.9 (begining of month)?

This has been a longstanding bug... maybe your setup changed recently to
cause it to show up.

The change last week shouldn't affect this. The only significant change
was between .40 and .41 and was there to enforce card ordering iirc.

Brad


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Re: [Bluez-users] Btsco refuse to hibernate

[Administrator TOOTAI]

Brad Midgley a =E9crit :

>Hi
>
> =20
>
>>I killed all stuff concerning sound, it change nothing.
>>
>>Brad: who could be able to help us to solve the problem? If I good
>>remember, 2.6.14 or earlier 2.6.15 had'nt have the problem. Could it be
>>related to the modification made in btsco version 1.9 (begining of mont=
h)?
>>   =20
>>
>
>This has been a longstanding bug... maybe your setup changed recently to
>cause it to show up.
> =20
>
I'm running SID, so it change always ;-)

>The change last week shouldn't affect this. The only significant change
>was between .40 and .41 and was there to enforce card ordering iirc.
> =20
>
Ok, so we have to wait. But what? or who? Should we ask on Suspend2=20
list? I know nothing about programing, will anyway try to check. It's in=20
kernel/btsco.c I have to take a look?
--=20
Daniel


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Re: [Bluez-users] Btsco refuse to hibernate

[John McCabe-Dansted]

On 2/23/06, Administrator TOOTAI <admin@tootai.net> wrote:
> John McCabe-Dansted a =E9crit :
>
> >I found that killing all running kmix processes allowed me to shutdown.
> >this can be done by typing from the command line:
> >        killall kmix
> >        killall -9 kmix
> >
> >Does this help? What desktop are you using? (E.g. KDE or Gnome)
> >
> >
> I killed all stuff concerning sound, it change nothing.

Hmm, have you tryied killing virtually all processes (e.g. by going to
runlevel 1)

Have  you tried applying the patch below and replacing your hci_usb
module (probably only useful if you are using a bluetooth usb dongle)?

...
Signed-Off-By: Johannes Berg <johannes@sipsolutions.net>

--- linux-2.6.git.orig/drivers/bluetooth/hci_usb.c
+++ linux-2.6.git/drivers/bluetooth/hci_usb.c
@@ -1043,10 +1043,65 @@
       hci_free_dev(hdev);
 }

+static int hci_usb_suspend(struct usb_interface *intf, pm_message_t messag=
e)
+{
+       struct hci_usb *husb =3D usb_get_intfdata(intf);
+       int i;
+       unsigned long flags;
+       struct list_head killed;
+
+       if (!husb || intf =3D=3D husb->isoc_iface)
+               return 0;
+
+       INIT_LIST_HEAD(&killed);
+
+       for (i =3D 0; i < 4; i++) {
+               struct _urb_queue *q =3D &husb->pending_q[i];
+               struct _urb *_urb, *_tmp;
+               while ((_urb =3D _urb_dequeue(q))) {
+                       /* reset queue since _urb_dequeue sets it to NULL *=
/
+                       _urb->queue =3D q;
+                       usb_kill_urb(&_urb->urb);
+                       list_add(&_urb->list, &killed);
+               }
+               spin_lock_irqsave(&q->lock, flags);
+               list_for_each_entry_safe(_urb, _tmp, &killed, list) {
+                       list_move_tail(&_urb->list, &q->head);
+               }
+               spin_unlock_irqrestore(&q->lock, flags);
+       }
+       return 0;
+}
+
+static int hci_usb_resume(struct usb_interface *intf)
+{
+       struct hci_usb *husb =3D usb_get_intfdata(intf);
+       int i, err =3D 0;
+       unsigned long flags;
+       if (!husb || intf =3D=3D husb->isoc_iface)
+               return 0;
+
+       for (i =3D 0; i < 4; i++) {
+               struct _urb_queue *q =3D &husb->pending_q[i];
+               struct _urb *_urb;
+               spin_lock_irqsave(&q->lock, flags);
+               list_for_each_entry(_urb, &q->head, list) {
+                       err =3D usb_submit_urb(&_urb->urb, GFP_ATOMIC);
+                       if (err) break;
+               }
+               spin_unlock_irqrestore(&q->lock, flags);
+               if (err)
+                       return -EIO;
+       }
+       return 0;
+}
+
 static struct usb_driver hci_usb_driver =3D {
       .name           =3D "hci_usb",
       .probe          =3D hci_usb_probe,
       .disconnect     =3D hci_usb_disconnect,
+       .suspend        =3D hci_usb_suspend,
+       .resume         =3D hci_usb_resume,
       .id_table       =3D bluetooth_ids,
 };

--
John C. McCabe-Dansted
Master's Student


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Re: [Bluez-users] Btsco refuse to hibernate

[Administrator TOOTAI]

John McCabe-Dansted a =E9crit :
> On 2/23/06, Administrator TOOTAI <admin@tootai.net> wrote:
>=20
>>John McCabe-Dansted a =E9crit :
>>
>>
>>>I found that killing all running kmix processes allowed me to shutdown=
.
>>>this can be done by typing from the command line:
>>>       killall kmix
>>>       killall -9 kmix
>>>
>>>Does this help? What desktop are you using? (E.g. KDE or Gnome)
>>>
>>>
>>
>>I killed all stuff concerning sound, it change nothing.
>=20
>=20
> Hmm, have you tryied killing virtually all processes (e.g. by going to
> runlevel 1)

No. I made <lsof | grep snd> then kill all programs showed.

>=20
> Have  you tried applying the patch below and replacing your hci_usb
> module (probably only useful if you are using a bluetooth usb dongle)?

There is no bluetooth device attached, just the module is loaded.

>=20
[...]

--=20
Daniel


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Re: [Bluez-users] Btsco refuse to hibernate

[John McCabe-Dansted]

> No. I made <lsof | grep snd> then kill all programs showed.

Cool. I didn't realize you could do that. In my case though, e.g. xmms
doesn't stop the machine hibernating even though it uses /dev/snd.

> >
> > Have  you tried applying the patch below and replacing your hci_usb
> > module (probably only useful if you are using a bluetooth usb dongle)?
>
> There is no bluetooth device attached, just the module is loaded.

I am not sure what you mean. Surely you must have some sort of
bluetooth adapter, even if it is built into the motherboard?

If you really don't have any bluetooth devices, you may as well stop
snd-bt-sco from loading next time you boot, e.g. by typing
         sudo mv /lib/modules/`uname -r`/extra/snd-bt-sco.ko{,.bak}

--
John C. McCabe-Dansted
Master's Student


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Re: [Bluez-users] Btsco refuse to hibernate

[Administrator TOOTAI]

John McCabe-Dansted a =E9crit :

> [...]
>
>>>Have  you tried applying the patch below and replacing your hci_usb
>>>module (probably only useful if you are using a bluetooth usb dongle)?
>>>     =20
>>>
>>There is no bluetooth device attached, just the module is loaded.
>>   =20
>>
>
>I am not sure what you mean. Surely you must have some sort of
>bluetooth adapter, even if it is built into the motherboard?
>
>If you really don't have any bluetooth devices, you may as well stop
>snd-bt-sco from loading next time you boot, e.g. by typing
>         sudo mv /lib/modules/`uname -r`/extra/snd-bt-sco.ko{,.bak}
> =20
>
Ah, I can do this ;-)?

Sure I have I have a bluetooth device, my sentence is to be understand=20
like "at the time I want to hibernate, no bluetooth device is attached." =
:-)

--=20
Daniel


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Re: [Bluez-users] Btsco refuse to hibernate

[John McCabe-Dansted]

On 2/25/06, Administrator TOOTAI <admin@tootai.net> wrote:
> John McCabe-Dansted a =E9crit :
> >If you really don't have any bluetooth devices, you may as well stop
> >snd-bt-sco from loading next time you boot, e.g. by typing
> >         sudo mv /lib/modules/`uname -r`/extra/snd-bt-sco.ko{,.bak}
> >
> >
> Ah, I can do this ;-)?
>
> Sure I have I have a bluetooth device, my sentence is to be understand
> like "at the time I want to hibernate, no bluetooth device is attached." =
:-)

I just remembered, hibernated doesn't work for me either when
snd_bt_sco is *loaded*. However, if there are no processes are using
it,  you should be able to remove it using the rmmod command,
   i.e. rmmod -w snd_bt_sco.

For this reason I have added:

  killall kmix
  killall btsco
  (sleep 1
  killall -9 kmix
  killall -9 btsco)
  rmmod -w snd_bt_sco &

To the start of my /usr/sbin/hibernate file. This allows me to
reliably hibernate (with kubuntu 5.10, you may have to kill a
different set of processes, though I doubt that you will have to kill
all processes listed by <lsof | grep snd>) . I have also added

  modprobe snd_bt_sco

to the end of this file so as to reload the module when coming out of hiber=
nate.

--
John C. McCabe-Dansted
Master's Student


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