30098c881f
`gatt_req_alloc` will wait until a `req` is free (or until timeout). `req`s are freed on the BT RX thread in calls into bt_att_recv. When `gatt_req_alloc` called on the BT RX thread itself when there are no free `req`s, it will block the BT RX thread and deadlock. The deadlock lasts until timeout. This change detects this condition and returns the failure early. Fixes https://github.com/zephyrproject-rtos/zephyr/issues/39624 where if `bt_gatt_write` is called from BT RX thread (as can happen if it is called from a bluetooth callback), the BT RX thread can be blocked and prevented from processing the request responses and unblocking itself. This was the cause of a soft 30s deadlock until gatt_req_alloc timeouts. Signed-off-by: Aleksander Wasaznik <aleksander.wasaznik@nordicsemi.no> |
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| .. | ||
| audio | ||
| common | ||
| controller | ||
| host | ||
| mesh | ||
| services | ||
| shell | ||
| CMakeLists.txt | ||
| Kconfig | ||
| Kconfig.adv | ||
| Kconfig.iso | ||