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[bluetooth-dev] OpenBT kernel stack freezing



I've observed this a number of times now - the stack
seems to freeze (intermittently) when I create a dial
up connection from laptop with IBM card (the target
is an ARM system attached to a Casira).

The debug trace is below. Has anyone experienced this
problem?? Can anyone help? (Note, I've tried several
versions of CSR firmware, all with the same result)


Thanks

<4>process_event (5):
<4>0x01 0x28 0x00 0x01 0x00
<4>HCI: process_event: NUMBER_OF_COMPLETED_PACKETS
<4>HCI: update_ncp: acl_num before: 0
<4>HCI: <NCP:1>
<4>HCI: update_ncp: acl_num after: 1
<4>
<4>hci_receive_data:  (32):
<4>0x04 0x13 0x05 0x01 0x28 0x00 0x01 0x00 0x04 0x13 0x05 0x01 0x28 0x00 0x01 0x
00
<4>0x04 0x13 0x05 0x01 0x28 0x00 0x02 0x00 0x04 0x13 0x05 0x01 0x28 0x00 0x02 0x
00
<4>hci_receive_data: hci-32
<4>HCI: hci_receive_data: WAIT_FOR_PACKET_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_LENGTH
<4>
<4>process_event (5):
<4>0x01 0x28 0x00 0x01 0x00
<4>HCI: process_event: NUMBER_OF_COMPLETED_PACKETS
<4>HCI: update_ncp: acl_num before: 1
<4>HCI: <NCP:2>
<4>HCI: update_ncp: acl_num after: 2
<4>HCI: hci_receive_data: WAIT_FOR_PACKET_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_LENGTH
<4>
<4>process_event (5):
<4>0x01 0x28 0x00 0x01 0x00
<4>HCI: process_event: NUMBER_OF_COMPLETED_PACKETS
<4>HCI: update_ncp: acl_num before: 2
<4>HCI: <NCP:3>
<4>HCI: update_ncp: acl_num after: 3
<4>HCI: hci_receive_data: WAIT_FOR_PACKET_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_LENGTH
<4>
<4>process_event (5):
<4>0x01 0x28 0x00 0x02 0x00
<4>HCI: process_event: NUMBER_OF_COMPLETED_PACKETS
<4>HCI: update_ncp: acl_num before: 3
<4>HCI: <NCP:5>
<4>HCI: update_ncp: acl_num after: 5
<4>HCI: hci_receive_data: WAIT_FOR_PACKET_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_LENGTH
<4>
<4>process_event (5):
<4>0x01 0x28 0x00 0x02 0x00
<4>HCI: process_event: NUMBER_OF_COMPLETED_PACKETS
<4>HCI: update_ncp: acl_num before: 5
<4>HCI: <NCP:7>
<4>HCI: update_ncp: acl_num after: 7
<4>HCI: hci_send_data: 9 bytes
<4>HCI: send_acl_data_task: 9 bytes
<4>HCI: send_acl_data_task: 9 bytes
<4>HCI: send_acl_packet: send 9 bytes (excl HCI header) out of 9
<4>HCI: send_acl_packet: There are 5 bytes space for the headers
<4>
<4>send_acl_packet:  (14):
<4>0x02 0x28 0x20 0x09 0x00 0x05 0x00 0x42 0x00 0x09 0xef 0x03 0x0d 0x40
<4>HCI: send_acl_packet: now c = 9
<4>HCI: send_acl_packet: unsubscribing tx_buf.
<4>HCI: <--0 (6)
<4>
<4>hci_receive_data:  (8):
<4>0x04 0x13 0x05 0x01 0x28 0x00 0x01 0x00
<4>hci_receive_data: hci-8
<4>HCI: hci_receive_data: WAIT_FOR_PACKET_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_TYPE
<4>HCI: hci_receive_data: WAIT_FOR_EVENT_LENGTH
<4>
<4>process_event (5):
<4>0x01 0x28 0x00 0x01 0x00
<4>HCI: process_event: NUMBER_OF_COMPLETED_PACKETS
<4>HCI: update_ncp: acl_num before: 6
<4>HCI: <NCP:7>
<4>HCI: update_ncp: acl_num after: 7

^^^^^^^^^^^^^
freezes here (same behavior each time it freezes)


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