Bug 43325 - rfkill causes general protection fault when bluetooth speaker is connected
Summary: rfkill causes general protection fault when bluetooth speaker is connected
Status: RESOLVED DUPLICATE of bug 42788
Alias: None
Product: Drivers
Classification: Unclassified
Component: Bluetooth (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: drivers_bluetooth@kernel-bugs.osdl.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-05-31 16:17 UTC by Jae-hyeon Park
Modified: 2012-08-30 14:42 UTC (History)
1 user (show)

See Also:
Kernel Version: 3.4
Subsystem:
Regression: Yes
Bisected commit-id:

Attachments
syslog until oops (166.97 KB, text/plain)
2012-05-31 16:17 UTC, Jae-hyeon Park 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Jae-hyeon Park 2012-05-31 16:17:38 UTC 
Created attachment 73477 [details]
syslog until oops

I use pulseaudio on my Thinkpad X200 Tablet laptop, in order to play sound through my JBL On Tour XTB bluetooth speaker.  If I give the rfkill command to switch off bluetooth while the speaker is connected, kernel often crashes with general protection fault apparently in the function l2cap_chan_destroy.  I mark this bug as a regression since rfkill worked reliably on kernel 3.1.6.  I tested vanilla kernel 3.4 + tuxonice patch on the Ubuntu 11.10 distribution.  The same problem occurs with kernel 3.3.7 + tuxonice patch.  rfkill can crash kernel without any suspension-resume cycle.


Steps to Reproduce:

1) Connect a bluetooth loudspeaker
2) Play some sound
3) Repeat a few times:
        rfkill block bluetooth
        rfkill unblock bluetooth
4) Kernel crashes with general protection fault
Comment 1 Alan 2012-08-30 14:42:54 UTC 

*** This bug has been marked as a duplicate of bug 42788 ***
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