data length extension on nrf52840 dongle

[thunder]

Hi, 

I have flashed hci_usb example on nrf52840dongle(hci1), enabled DLE. But when linux machine requests data from other board(as sender) dongle is getting crashed.

The same experiment (receiving the data from other board) is successful with default BT controller(hci0) on linux machine.

why nrfdongle is crashed ?

Any help would be really appreciated. Adding prj.conf of hci_usb

CONFIG_BT=y
CONFIG_BT_HCI_RAW=y
CONFIG_SERIAL=n
CONFIG_CONSOLE=n
CONFIG_UART_CONSOLE=n

# NEW USB Stack
CONFIG_USB_DEVICE_STACK_NEXT=y
CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=n
CONFIG_SAMPLE_USBD_PID=0x000B
CONFIG_SAMPLE_USBD_PRODUCT="Zephyr USBD BT HCI"
CONFIG_USBD_BT_HCI=y

# DLE - 251 bytes
CONFIG_BT_USER_DATA_LEN_UPDATE=y
CONFIG_BT_DATA_LEN_UPDATE=y
CONFIG_BT_CTLR_DATA_LENGTH_MAX=251
CONFIG_BT_AUTO_DATA_LEN_UPDATE=y
CONFIG_BT_BUF_ACL_RX_SIZE=251
CONFIG_BT_BUF_ACL_TX_SIZE=251
CONFIG_BT_BUF_ACL_TX_COUNT=10
CONFIG_BT_BUF_EVT_RX_COUNT=12

# 2M PHY
CONFIG_BT_PHY_UPDATE=y
CONFIG_BT_CTLR_PHY_2M=y

# Extended Advertising
CONFIG_BT_EXT_ADV=y
CONFIG_BT_CTLR_ADV_EXT=y

CONFIG_LOG=y

[Turbo J]

CONFIG_LOG=y usually means you need to increase stack size. Where do you intend to put the logs to on the dongle?