Bug 13366 - bluez5 ptest hangs with gcc 9
Summary: bluez5 ptest hangs with gcc 9
Status: RESOLVED FIXED
Alias: None
Product: OE-Core
Classification: Build System, Metadata & Runtime
Component: connectivity (show other bugs)
Version: 2.7
Hardware: x86 Multiple
: Medium+ normal
Target Milestone: 2.8 M1
Assignee: Ross Burton
QA Contact:
URL:
Whiteboard:
Depends on:
Blocks:
 
Reported: 2019-05-29 15:02 UTC by Richard Purdie
Modified: 2019-07-02 00:25 UTC (History)
5 users (show)

See Also:
OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: No (bug/feature does not impact docs)

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Richard Purdie 2019-05-29 15:02:01 UTC 
Since we switched to gcc 9 by default, the bluez5 ptests are hanging. It hangs in /TP/SIG/SMG/BV-06-C-SEID-2 with:

/TP/SIG/SMG/BV-06-C-SEID-2 init
/TP/SIG/SMG/BV-06-C-SEID-2 setup
/TP/SIG/SMG/BV-06-C-SEID-2 setup complete
/TP/SIG/SMG/BV-06-C-SEID-2 run
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_ref() 0x56149afe5230: ref=1
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_register_sep() SEP 0x56149afe5060 registered: type:1 codec:0 seid:1
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_register_sep() SEP 0x56149afe2700 registered: type:1 codec:0 seid:2
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_unregister_sep() SEP 0x56149afe5060 unregistered: type:1 codec:0 seid:1
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_register_sep() SEP 0x56149afe5060 registered: type:1 codec:0 seid:1
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:session_cb() 
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_ref() 0x56149afe5230: ref=2
bluetoothd[819]: No pending request, ignoring message
bluetoothd[819]: ../bluez-5.50/android/avdtp.c:avdtp_unref() 0x56149afe5230: ref=1

Readily reproduces with:

root@qemux86-64:/usr/lib/bluez5/ptest# ./unit/test-avdtp

With gcc set back to 8.x it works fine.
Comment 1 Richard Purdie 2019-05-29 15:05:27 UTC 
Report showing the timeout: https://autobuilder.yocto.io/pub/non-release/20190529-5/testresults/testresult-report.txt
Comment 2 Ross Burton 2019-06-12 11:58:40 UTC 
https://git.kernel.org/pub/scm/bluetooth/bluez.git/patch/?id=0be5246170 most likely.  Patch incoming.
Comment 3 Ross Burton 2019-06-12 12:42:17 UTC 
Patch on list.