On Wed, 2023-02-08 at 12:21 +0300, Arda Demir wrote: > Hello, > > First of all, my bluetooth adapter is; > 04:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) > > I see the following message everytime when i boot the pc on tty. > > "Bluetooth: hci0: Malformed MSFT vendor event: 0x02" > > But bluetooth works well. If it is not critical it shouldn't print on > tty, right? On Wed, Feb 8, 2023 at 12:29 PM Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > > On Wed, 2023-02-08 at 12:21 +0300, Arda Demir wrote: > > Hello, > > > > First of all, my bluetooth adapter is; > > 04:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a) > > You've reached the Wi-Fi team here though - adding the BT list. > > > I see the following message everytime when i boot the pc on tty. > > > > "Bluetooth: hci0: Malformed MSFT vendor event: 0x02" > > > > But bluetooth works well. If it is not critical it shouldn't print on > > tty, right? > > That's generic from net/bluetooth/hci_event.c, not related to the device > (apart from the fact that the device might be broken if it's sending > this?) > > johannes > On Wed, Feb 8, 2023 at 2:00 AM Arda Demir <ddmirarda@xxxxxxxxx> wrote: > > I don't think the device is broken since bluetooth + wi-fi is fully > functional and i also read on arch linux forum people get the same > message on tty with the same hardware. (AX200) > > https://bbs.archlinux.org/viewtopic.php?id=276815 On Wed, Feb 8, 2023 at 1:17 PM Paul Menzel <pmenzel@xxxxxxxxxxxxx> wrote: > > The message seems to originate from `net/bluetooth/msft.c`: > > ... > > ``` > static void *msft_skb_pull(struct hci_dev *hdev, struct sk_buff *skb, > u8 ev, size_t len) > { > void *data; > > data = skb_pull_data(skb, len); > if (!data) > bt_dev_err(hdev, "Malformed MSFT vendor event: 0x%02x", > ev); > > return data; > } > ``` > > I recommend to create a bug report at the Linux kernel Bugzilla [1], > where you attach the output of `dmesg`. > > Additionally, I suggest to not load the Bluetooth modules like btusb > during startup, and only later load it with `btmon` running. > > Please reply with the bug report number/URL, if you created the bug report. > > > Kind regards, > > Paul > > > [1]: https://bugzilla.kernel.org/ On Thu, Feb 9, 2023 at 2:43 AM Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> wrote: > > Hi Arda, > > On Wed, Feb 8, 2023 at 2:00 AM Arda Demir <ddmirarda@xxxxxxxxx> wrote: > > I don't think the device is broken since bluetooth + wi-fi is fully > > functional and i also read on arch linux forum people get the same > > message on tty with the same hardware. (AX200) > > > > https://bbs.archlinux.org/viewtopic.php?id=276815 > > I suspect it is some vendor event other than MSFT that we are trying > to parse as MSFT, this normally can be ignored silently when not > understood, but I will check internally what we can do about it. I've created a bug report about this: https://bugzilla.kernel.org/show_bug.cgi?id=217023
