Bluetooth: userchan: k_sem_take failed with err -11

[LingaoM]

Zephyr build version: zephyr-v2.4.0-1367-g7d16ab50d738

Step to build and configuration:

• 1. west build -b native_posix zephyr/samples/bluetooth/central
• 2. west build -t menuconfig

• Goto --> Sub Systems and OS Services --> Blueooth-->Bluetooth HCI driver debug
• Goto --> Sub Systems and OS Services --> Blueooth-->Bluetooth debug type (Normal printf-style to console)
• Goto --> Sub Systems and OS Services --> Blueooth-->Bluetooth HCI core debug

• 3. west build

Use Cambridge Silicon Radio CSR rck PTS Dongle as Controller

• 1. sudo btmon
• 2. sudo hciconfig hci1 down

Finally run command: sudo ./build/zephyr/zephyr.exe --bt-dev=hci1
In a short time, an exception will be triggered, see below:

ASSERTION FAIL [err == 0] @ /home/lingao/zephyrproject/zephyr/subsys/bluetooth/host/hci_core.c:374
	k_sem_take failed with err -11
@ /home/lingao/zephyrproject/zephyr/subsys/bluetooth/host/hci_core.c:374
[00:00:10.910,000] <err> os: >>> ZEPHYR FATAL ERROR 3: Kernel oops on CPU 0
[00:00:10.910,000] <err> os: Current thread: 0x56614fa0 (unknown)
[00:00:10.910,000] <err> os: Halting system

[LingaoM]

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