mbedTLS: MBEDTLS_ERR_SSL_INVALID_RECORD

Post author: Coding Spirit
Post link: <a href="https://lzqblog.top/2021/02/27/mbedTLS-MBEDTLS-ERR-SSL-INVALID-RECORD/" title="mbedTLS: MBEDTLS_ERR_SSL_INVALID_RECORD">https://lzqblog.top/2021/02/27/mbedTLS-MBEDTLS-ERR-SSL-INVALID-RECORD/
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Posted on 2021-02-27 Edited on 2023-08-13 In 问题记录 Views: Word count in article: 55 Reading time ≈ 1 mins.

Using some RTOS built-in mbedTLS to connect to AWS IoT Core might fail due to MBEDTLS_ERR_SSL_INVALID_RECORD(-0x7200 or -29184) during ssl handshake. There are several possible causes:

The task stack set for mbedTLS running is not enough. Increase task stack and try again.
MBEDTLS_SSL_MAX_CONTENT_LEN is not enough. Increase MBEDTLS_SSL_MAX_CONTENT_LEN to 16384 and try again.