Hi Luiz,
Friendly reminder.
> -----Original Message-----
> From: K, Kiran <kiran.k@xxxxxxxxx>
> Sent: Monday, April 1, 2024 5:56 PM
> To: linux-bluetooth@xxxxxxxxxxxxxxx
> Cc: Srivatsa, Ravishankar <ravishankar.srivatsa@xxxxxxxxx>; Tumkur Narayan,
> Chethan <chethan.tumkur.narayan@xxxxxxxxx>; K, Kiran <kiran.k@xxxxxxxxx>
> Subject: [PATCH v2 1/2] Bluetooth: btintel: Dump exception event
>
> Having exception event dump in kernel log helps debugging the use cases
> where snoop traces are not available.
>
> dmesg:
>
> [27.032666] Bluetooth: hci0: Exception occurred - type: 0xde [27.032703]
> Bluetooth: hci0: ff 4f 87 80 03 01 01 de 07 01 de 06 1c ef be ad [27.032729]
> Bluetooth: hci0: de ef be ad de ef be ad de ef be ad de ef be ad [27.032753]
> Bluetooth: hci0: de ef be ad de ef be ad de 05 14 ef be ad de ef [27.032778]
> Bluetooth: hci0: be ad de ef be ad de ef be ad de ef be ad de 43 [27.032803]
> Bluetooth: hci0: 10 ef be ad de ef be ad de ef be ad de ef be ad [27.032827]
> Bluetooth: hci0: de
>
> Signed-off-by: Kiran K <kiran.k@xxxxxxxxx>
> ---
> drivers/bluetooth/btintel.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index
> a19ebe47bd95..c0dbbd1a2032 100644
> --- a/drivers/bluetooth/btintel.c
> +++ b/drivers/bluetooth/btintel.c
> @@ -3119,6 +3119,7 @@ EXPORT_SYMBOL_GPL(btintel_configure_setup);
> static int btintel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb) {
> struct intel_tlv *tlv = (void *)&skb->data[5];
> + char prefix[64];
>
> /* The first event is always an event type TLV */
> if (tlv->type != INTEL_TLV_TYPE_ID)
> @@ -3129,6 +3130,12 @@ static int btintel_diagnostics(struct hci_dev *hdev,
> struct sk_buff *skb)
> case INTEL_TLV_FATAL_EXCEPTION:
> case INTEL_TLV_DEBUG_EXCEPTION:
> case INTEL_TLV_TEST_EXCEPTION:
> + bt_dev_err(hdev, "Exception occurred - type: 0x%2.2x",
> + tlv->val[0]);
> + snprintf(prefix, sizeof(prefix), "Bluetooth: %s: ",
> + bt_dev_name(hdev));
> + print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_NONE, 16,
> 1,
> + skb->data, skb->len, false);
> /* Generate devcoredump from exception */
> if (!hci_devcd_init(hdev, skb->len)) {
> hci_devcd_append(hdev, skb);
> --
> 2.34.1
Thanks,
Kiran
