Bug 215015 - rtl8723bs restarting loop
Summary: rtl8723bs restarting loop
Status: RESOLVED PATCH_ALREADY_AVAILABLE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Bluetooth (show other bugs)
Hardware: Intel Linux
: P1 high
Assignee: linux-bluetooth@vger.kernel.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-11-14 11:20 UTC by Serg Podtynnyi
Modified: 2021-11-21 21:22 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.15.2
Subsystem:
Regression: Yes
Bisected commit-id:

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Description Serg Podtynnyi 2021-11-14 11:20:40 UTC 
Using tablet on Intel Atom platform cherry trail with rtl8723bs, Arch Linux distro. After kernel update to the 5.15.2 Bluetooth constantly turning on and off as seen in logs switching back to 5.14.16 solves the issue.

```
Nov 13 10:44:41 talos systemd[1]: systemd-rfkill.service: Deactivated successfully.
Nov 13 10:44:43 talos systemd[1]: Starting Load/Save RF Kill Switch Status...
Nov 13 10:44:43 talos systemd[1]: Stopped target Bluetooth Support.
Nov 13 10:44:43 talos systemd[1]: Started Load/Save RF Kill Switch Status.
Nov 13 10:44:44 talos kernel: Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
Nov 13 10:44:44 talos kernel: Bluetooth: hci0: RTL: rom_version status=0 version=1
Nov 13 10:44:44 talos kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_fw.bin
Nov 13 10:44:44 talos kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_config-OBDA8723.bin
Nov 13 10:44:44 talos systemd[1]: Reached target Bluetooth Support.
Nov 13 10:44:44 talos systemd[460]: Reached target Bluetooth.
Nov 13 10:44:44 talos kernel: Bluetooth: hci0: RTL: cfg_sz 64, total sz 24508
Nov 13 10:44:45 talos kernel: Bluetooth: hci0: RTL: fw version 0x365d462e
Nov 13 10:44:49 talos systemd[1]: systemd-rfkill.service: Deactivated successfully.
Nov 13 10:44:49 talos systemd[1]: systemd-hostnamed.service: Deactivated successfully.
Nov 13 10:44:52 talos systemd[460]: Stopped target Bluetooth.
Nov 13 10:44:52 talos systemd[1]: Starting Load/Save RF Kill Switch Status...
Nov 13 10:44:52 talos systemd[1]: Stopped target Bluetooth Support.
Nov 13 10:44:52 talos systemd[1]: Started Load/Save RF Kill Switch Status.
Nov 13 10:44:53 talos kernel: Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
Nov 13 10:44:53 talos kernel: Bluetooth: hci0: RTL: rom_version status=0 version=1
Nov 13 10:44:53 talos kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_fw.bin
Nov 13 10:44:53 talos kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_config-OBDA8723.bin
Nov 13 10:44:53 talos systemd[1]: Reached target Bluetooth Support.
Nov 13 10:44:53 talos systemd[460]: Reached target Bluetooth.
Nov 13 10:44:53 talos kernel: Bluetooth: hci0: RTL: cfg_sz 64, total sz 24508
Nov 13 10:44:54 talos kernel: Bluetooth: hci0: RTL: fw version 0x365d462e
Nov 13 10:44:58 talos systemd[1]: systemd-rfkill.service: Deactivated successfully.
Nov 13 10:45:01 talos systemd[460]: Stopped target Bluetooth.
Nov 13 10:45:01 talos systemd[1]: Starting Load/Save RF Kill Switch Status...
Nov 13 10:45:01 talos systemd[1]: Stopped target Bluetooth Support.
Nov 13 10:45:01 talos systemd[1]: Started Load/Save RF Kill Switch Status.
Nov 13 10:45:01 talos kernel: Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
Nov 13 10:45:01 talos kernel: Bluetooth: hci0: RTL: rom_version status=0 version=1
Nov 13 10:45:01 talos kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_fw.bin
Nov 13 10:45:01 talos kernel: Bluetooth: hci0: RTL: loading rtl_bt/rtl8723bs_config-OBDA8723.bin
Nov 13 10:45:01 talos systemd[460]: Reached target Bluetooth.
Nov 13 10:45:01 talos systemd[1]: Reached target Bluetooth Support.
```
Comment 1 Serg Podtynnyi 2021-11-21 21:22:21 UTC 
Fixed in 5.15.3
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