POST result depends on debug level

Adam Jozsef Acs · 2024-02-07T13:56:39+09:00

Dear all, I make POST requests to a HTTPS server with W5500 and STM32F405. I have done the developement in 2021.July. with “#define DEBUG_LEVEL 5” It has worked fine, but now I have just reduced the debugg level to 1 and to 2, and it failes. For example this is the log when it stoppes, and after about 2 minutes continues with failing. in log level 1: [ Ciphersuite is TLS-RSA-WITH-AES-128-GCM-SHA256 ] Successfully finished TSL connection with the server! Start sending data to the server written byte number: 2063 bytes //here is the 2 minutes long waiting......................... mbedtls_ssl_fetch_input() returned -7 (-0x0007) mbedtls_ssl_read_record_layer() returned -7 (-0x0007) mbedtls_ssl_read_record() returned -7 (-0x0007) 0. Received bytes number : -7 receive TLS error Failed to send data to the server SSL close error = -7 Unable to close the conenction Maybe I can see some connections between the size of the request I want to send, and the succeeding. Is there any possibility of the bug is based in any timing? For example the sending of the log message of DEBUG_LEVEL 5 takes more time and this factor modifies something? I have configured SSL in this way: (some key lines:) #define MBEDTLS_SSL_PROTO_TLS1_2 #define MBEDTLS_SHA256_C #define MBEDTLS_MPI_MAX_SIZE 2048 #define MBEDTLS_SSL_MAX_CONTENT_LEN 10240 Do you have any suggessions? I can attach the log of the failings on level 1, level 2 and the successful posts log on level 5 if it would help. It works in level 5, but I would be happy if this bug would be solved. Thank you so much, Adam

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