Bug 208915 - Regression: issues and hang during PAN network connection
Summary: Regression: issues and hang during PAN network connection
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Bluetooth (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: linux-bluetooth@vger.kernel.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-08-16 09:31 UTC by Oleksii Shevchuk
Modified: 2020-08-16 11:28 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.8.1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Dmesg (filtered by bluetooth and usb) (7.30 KB, text/plain)
2020-08-16 09:31 UTC, Oleksii Shevchuk 		Details
Perf top (2.27 KB, text/plain)
2020-08-16 09:32 UTC, Oleksii Shevchuk 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Oleksii Shevchuk 2020-08-16 09:31:09 UTC 
Created attachment 290921 [details]
Dmesg (filtered by bluetooth and usb)

Tested with latest 5.7 - no issue.

5.8.1 - PAN connection never completed (timeout).
Turning off bluetooth using rfkill interface after PAN connection attempt fails. Further calls of rfkill hangs. I.e. rfkill list hangs. One CPU core is loaded 100% of time (likely rest in spinlock). Reboot -f hangs as well.

No crashes in dmesg.
Comment 1 Oleksii Shevchuk 2020-08-16 09:32:01 UTC 
Created attachment 290923 [details]
Perf top
Comment 2 Pavel 2020-08-16 11:28:26 UTC 
Same for me. Intel AX200, Huawei Maimang 5
Note You need to log in before you can comment on or make changes to this bug.