Hi Luiz, >> the latest Fedora 27 kernel which has all the RPi3 patches applied doesn’t actually work. It provides this backlog. >> >> [ 229.162921] CPU: 1 PID: 582 Comm: kworker/u9:1 Not tainted 4.13.2-300.fc27.armv7hl #1 >> [ 229.171285] Hardware name: Generic DT based system >> [ 229.176774] Workqueue: hci0 hci_cmd_work [bluetooth] >> [ 229.176774] Workqueue: hci0 hci_cmd_work [bluetooth] >> [ 229.182117] [<c0312af4>] (unwind_backtrace) from [<c030d264>] (show_stack+0x18/0x1c) >> [ 229.190374] [<c030d264>] (show_stack) from [<c0b66174>] (dump_stack+0xa0/0xd8) >> [ 229.198122] [<c0b66174>] (dump_stack) from [<c03aeaec>] (register_lock_class+0x298/0x514) >> [ 229.206835] [<c03aeaec>] (register_lock_class) from [<c03b1f9c>] (__lock_acquire+0xe4/0x1608) >> [ 229.215952] [<c03b1f9c>] (__lock_acquire) from [<c03b3fd0>] (lock_acquire+0x280/0x2dc) >> [ 229.224386] [<c03b3fd0>] (lock_acquire) from [<c0b80ba4>] (_raw_read_lock+0x4c/0x5c) >> [ 229.232740] [<c0b80ba4>] (_raw_read_lock) from [<bf47903c>] (hci_uart_tx_wakeup+0x1c/0x98 [hci_uart]) >> [ 229.242725] [<bf47903c>] (hci_uart_tx_wakeup [hci_uart]) from [<bf47a0e0>] (hci_uart_send_frame+0x54/0x6c [hci_uart]) >> [ 229.254485] [<bf47a0e0>] (hci_uart_send_frame [hci_uart]) from [<bf3cb260>] (hci_send_frame+0xc8/0xf4 [bluetooth]) >> [ 229.266157] [<bf3cb260>] (hci_send_frame [bluetooth]) from [<bf3cb334>] (hci_cmd_work+0xa8/0x124 [bluetooth]) >> [ 229.277005] [<bf3cb334>] (hci_cmd_work [bluetooth]) from [<c036f154>] (process_one_work+0x43c/0x83c) >> [ 229.286689] [<c036f154>] (process_one_work) from [<c0370934>] (worker_thread+0x290/0x40c) >> [ 229.295355] [<c0370934>] (worker_thread) from [<c0376784>] (kthread+0x14c/0x168) >> [ 229.303195] [<c0376784>] (kthread) from [<c03080d0>] (ret_from_fork+0x14/0x24) >> >> It results in the first HCI command going through and then every other failing. >> >> = Index Info: 00:00:00:00:00:00 (Broadcom Corporation) >> < HCI Command: Broadcom Update UART Baud Rate (0x3f|0x0018) plen 6 >> Encoded baud rate: Not used (0x0000) >> Explicit baud rate: 2000000 Mbps > > Either we are printing the baud rate incorrectly of there gotta be > something wrong with it since 2 Tbps sounds pretty much impossible... > I guess this must be 2 Mbps/2000000 bps. I bet that is a btmon decoding issue which I might have just typed down wrongly when adding support for it. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html