Long delay when browsing a device (obex)

[Oliver Joos]

Binary package hint: bluez

Pairing with phone works flawlessly. But while browsing through obex nautilus often does nothing for 30...60 seconds. dmseg and syslog don't show any problem. In Lucid alpha 2 and 3 there were (recoverable) kernel crashes while browsing. Since Lucid beta 1 there are no crashes or lost connections anymore - just those long timeouts. In Karmic there are no such timeouts.

I use a Live-CD of Lucid beta 1 on a HP Compaq nx8220 and a Nokia N81:
$ lsusb
Bus 003 Device 002: ID 03f0:011d Hewlett-Packard Integrated Bluetooth Module
...

I hope I guessed the package right. I'd be glad to submit further infos about this bug. It's easy to reproduce for me.
---
Architecture: i386
DistroRelease: Ubuntu 10.04
InterestingModules: rfcomm sco bnep l2cap btusb bluetooth
LiveMediaBuild: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Hewlett-Packard HP Compaq nx8220 (PY517EA#ABD)
Package: bluez 4.60-0ubuntu8
PackageArchitecture: i386
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz boot=casper iso-scan/filename=/boot/iso/lucid-desktop-i386.iso noeject noprompt --
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Tags: lucid
Uname: Linux 2.6.32-21-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 07/11/2007
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68DTV Ver. F.16
dmi.board.name: 0934
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 43.1D
dmi.chassis.asset.tag: oliverhp
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68DTVVer.F.16:bd07/11/2007:svnHewlett-Packard:pnHPCompaqnx8220(PY517EA#ABD):pvrF.16:rvnHewlett-Packard:rn0934:rvrKBCVersion43.1D:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq nx8220 (PY517EA#ABD)
dmi.product.version: F.16
dmi.sys.vendor: Hewlett-Packard
hciconfig:
 hci0: Type: USB
  BD Address: 00:16:41:7C:AC:64 ACL MTU: 377:10 SCO MTU: 16:0
  UP RUNNING PSCAN
  RX bytes:7288368 acl:22683 sco:0 events:1045 errors:0
  TX bytes:25573 acl:1239 sco:0 commands:42 errors:0
rfkill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no

[Baptiste Mille-Mathias (bmillemathias)]

Hi Oliver,

First could open a terminal and type the following "apport-collect 543163", this will help me to know your setup.
secondly, on a terminal and do the following:
$ cd /usr/share/doc/obexd-client/examples/
$ ./list-folders xx:xx:xx:xx:xx:xx / (where xx:xx:xx:xx:xx:xx is the address of your device)
and then provide another path, as you would browse in a graphical browser.

tell me if you encounter the same problem.

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

apport information

[Oliver Joos (oliver-joos)]

I reproduced the bug by booting a Live-CD of Lucid 10.04 final release. See the apport infos above.

To reproduce I disconnect, reconnect and then browse my Nokia N81. I realized that each time before the described delay of about 26 secs occurs, there is a smaller delay (some seconds) while browsing through directories on the phone. This smaller delay is unpredictable but only occurred when changing back to a parent directory that already has been opened before:

I attach here a log file produced by "sudo hcidump -XYt > $HOME/hci.log" while doing this:
1. Browse files on device...
2. Click on E:/ (memory card in the phone)
3. Click on Images/
4. Click on a subdir of Images/
5. Click back on E:/ => delay of some seconds
6. Drag&Drop a file from E:/ to Desktop => delay of about 26 secs

[Oliver Joos (oliver-joos)]

@Baptiste: Sorry, I nearly forgot: I never saw a delay when using /usr/share/doc/obexd-client/examples/list-folders.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Konrad Zapałowicz (kzapalowicz)]

This is reported against an old version of Ubuntu and many things has changed since then. Because of that we won't fix this issue however if this behavior repeats on a modern version please fill a bug report against it and we will take it from there.