esp-idf: AP mode, got error wifi: ampdu: ignore deleting tx BA0

Environment

Development Kit: [ESP32-PICO-D4]
Kit version: self made
Module or chip used: [ESP32-PICO-D4|ESP32]
IDF version: v4.0-dev-1346-g1b6010b
Build System: [idf.py]
Compiler version (run xtensa-esp32-elf-gcc --version to find it): xtensa-esp32-elf-gcc (crosstool-NG esp32-2019r1) 8.2.0
Operating System: [Linux-ubuntu16.04]
Power Supply: [Battery->dc-dc->3.3v]

Problem Description

I got losts of error like this: I (614270) wifi: ampdu: ignore deleting tx BA0 I (614270) wifi: ampdu: ignore deleting tx BA0 I (614270) wifi: ampdu: ignore deleting tx BA0 I (615270) wifi: ampdu: ignore deleting tx BA0

Hello, I am using a PICO D4, and trying the example of AP mode. So far, I don’t have the problem in sta mode. When this error comes up, the data transfering is impossible. This problem is random. Most of the time, ESP32 works well.

Someone else have the same problem. https://www.esp32.com/viewtopic.php?f=13&t=10839&p=44403&hilit=wifi%3A+ampdu%3A+ignore+deleting+tx+BA0&sid=4bb8f22bbe5efb2d3911586f0131c3e6#p44403

https://www.esp32.com/viewtopic.php?f=25&t=10873&p=44538&hilit=wifi%3A+ampdu%3A+ignore+deleting+tx+BA0&sid=4bb8f22bbe5efb2d3911586f0131c3e6#p44538

re-produce the error:

example: softap
combine another example http server
make some “post” or “get” data transfer, or just reflesh the home page you set for http server , ESP32 should work well. Wait a few mintues, the error may come up.

I guess, this is not about my code, it is about driver or hardware, or wrong config in Kconfig. But I am not sure what is wrong, and how to fix it.

Thank you, any suggestion will be appreciated

About this issue

Original URL
State: closed
Created 5 years ago
Comments: 15 (1 by maintainers)

Commits related to this issue

Fixes UART detach. Fixes #3878 (#3894) * Fixes UART detach. Fixes #3878 * 0 is not a good holder value for pins! * 0 is not a good holder value for pins! — committed to 0xFEEDC0DE64/esp-idf by lbernstone 4 years ago

Most upvoted comments

@gabrielrbeiro the fix now is in reviewing status, it will be merged into IDF this month.

liuzfesp on Dec 2, 2019

We are debugging the delete tx BA issue recently , and we will solve it as soon as possible.

zhangyanjiaoesp on Nov 6, 2019

The current implementation of AMPDU in the ESP32 seems to be wrong as it causes problems with some network adapters. Using UDP over AP causes massive packet drops and TCP over AP causes packet looses and socket timeouts.

I solved this issue disabling AMPDU on the sdkconfig.h as a workaround:

#define CONFIG_ESP32_WIFI_AMPDU_TX_ENABLED 0
#define CONFIG_ESP32_WIFI_AMPDU_RX_ENABLED 0

daniol on Sep 17, 2019