pkarashchenko opened a new issue, #5973: URL: https://github.com/apache/incubator-nuttx/issues/5973
Recently I've been testing FTPD operation on custom SAME70 based board with FileZilla FTP client. I had `CONFIG_NET_TCP_WRITE_BUFFERS=y`. I have a folder with 2 files that I try to upload from laptop to device. Upload of a folder fails. FileZilla starts 2 FTP sessions in parallel one for each file upload so 2 instances of `ftpd_worker` are started. The situation happens in 80% of my tests. The FTP client send `"STOR"` command for both files and by adding extra logs I see that both threads reach `ftpd.c:1908` code `ret = ftpd_response(session->cmd.sd, session->txtimeout, g_respfmt1, 150, ' ', "Opening data connection");` at the same time so `send` is called concurrently. The logs before `ftpd_response` call are printed, but there are no logs after `ftpd_response` call. NSH "ps" shows that both threads are "waiting for semaphore", but most probably loop somewhere inside the `psock_tcp_send` trying to allocate `iob`. Setting `CONFIG_NET_TCP_WRITE_BUFFERS=n` solves the issue and FTP s erver operates as expected. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
