syslog flooded with "hci_scodata_packet: hci0 SCO packet for unknown connection handle"
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
I am experiencing unstable bluetooth connections between a USB bluetooth dongle and headset. I get a ton of lines like
Dec 1 04:09:51 localhost kernel: [ 264.372205] hci_scodata_packet: hci0 SCO packet for unknown connection handle 65261
in syslog. The bluetooth connection also usually breaks down about 10 seconds into a Skype call. I cannot know if the two phenomena are actually related.
Dec 1 04:09:52 localhost kernel: [ 264.392198] hci_scodata_packet: hci0 SCO packet for unknown connection handle 65072
Dec 1 04:09:52 localhost kernel: [ 264.402199] hci_scodata_packet: hci0 SCO packet for unknown connection handle 65493
Dec 1 04:10:26 localhost bluetoothd[1756]: Audio connection got disconnected
Dec 1 04:10:26 localhost pulseaudio[1936]: ratelimit.c: 4802 events suppressed
Dec 1 04:10:35 localhost pulseaudio[1936]: ratelimit.c: 428 events suppressed
I believe this is a Ubuntu-induced regression, I was unable to reproduce the problem with a mainline kernel today.
confirmed affected: vmlinuz-
confirmed affected: vmlinuz-
apparently unaffected: vmlinuz-
FWIW, the mainline kernel seems to have a stable bluetooth connection but syslog gets flooded there as well.
tags: |
added: kernel-bug-exists-upstream-3.14.0-031400rc6-generic removed: needs-upstream-testing |
tags: |
added: kernel-bug-exists-upstream-3.14-rc6 removed: kernel-bug-exists-upstream-3.14.0-031400rc6-generic |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 898347
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.