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| From: | contact |
| Subject: | Re: [lwip-users] TFTP init |
| Date: | Wed, 18 Jan 2017 20:10:58 +0530 |
I guess you need to check memory configuration. How much RAM do you have? Are you using memory pool or malloc? One thing to note here, I have written modified vfs layer for both my systems as none of them use FatFS. I don’t know if that will have any impact as such. You better check your lwIP options for memory settings.
From: nrichard Ajay Bhargav wrote > I am using this FTP server on two of my devices (ARM board and ESP8266) > and it works perfectly fine. Can you enable FTP debug prints and see where > exactly it is failing? > > Regards, > Ajay Bhargav I turned on TCP as well as FTP debugging, and low and behold, it tells me I'm out of memory... /TCP header: +-------------------------------+ | 22271 | 21 | (src port, dest port) +-------------------------------+ | 0032031823 | (seq no) +-------------------------------+ | 0000000000 | (ack no) +-------------------------------+ | 8 | |000010| 8192 | (hdrlen, flags (SYN), win) +-------------------------------+ | 0xe60a | 0 | (chksum, urgp) +-------------------------------+ tcp_input: packed for LISTENing connection. TCP connection request 22271 -> 21. tcp_parseopt: MSS tcp_parseopt: NOP tcp_parseopt: other tcp_parseopt: NOP tcp_parseopt: NOP tcp_parseopt: other tcp_enqueue_flags: queuelen: 0 tcp_enqueue_flags: queueing 6510:6511 (0x12) tcp_enqueue_flags: 1 (after enqueued) tcp_output: snd_wnd 8192, cwnd 1, wnd 1, effwnd 0, seq 6510, ack 6510 tcp_output: snd_wnd 8192, cwnd 1, wnd 1, effwnd 0, seq 6510, ack 6510, i 0 tcp_output_segment: rtseq 6510 tcp_output_segment: 6510:6510 TCP header: +-------------------------------+ | 22271 | 21 | (src port, dest port) +-------------------------------+ | 0032031824 | (seq no) +-------------------------------+ | 0000006511 | (ack no) +-------------------------------+ | 5 | |010000| 8192 | (hdrlen, flags (ACK), win) +-------------------------------+ | 0x0d59 | 0 | (chksum, urgp) +-------------------------------+ +-+-+-+-+-+-+-+-+-+-+-+-+-+- tcp_input: flags ACK -+-+-+-+-+-+-+-+-+-+-+-+-+-+ State: SYN_RCVD TCP connection established 22271 -> 21. ftpd_msgaccept: Out of memory tcp_pcb_purge tcp_pcb_purge: data left on ->unacked tcp_abandon: sending RST tcp_rst: seqno 6511 ackno 32031824. tcp_slowtmr: no active pcbs/ I'm trying to get this working on an ARM board as well, a Sam4e. Not to get into too much detail because this is an LWIP mailing list, not an ARM mailing list, but I imported the FatFs module from the ASF Wizard and used an example to replicate the FatFs setup. Seems like one of the #defines they have me do, "VMEM_NB_SECTOR" determines whether I have enough memory or not. The example wants me to set it at 128, whereas the default was 8. At 128 FatFs creates, writes, and reads a file, anything below 128 and FatFs does not work, however FTP connects but can't do any operations (I get FTP server error messages). -- View this message in context: http://lwip.100.n7.nabble.com/TFTP-init-tp28231p28404.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list address@hidden https://lists.nongnu.org/mailman/listinfo/lwip-users |
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