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From: | nikolas.karakotas |
Subject: | Re: [lwip-users] sys_mbox_free error when SYN retries reached |
Date: | Fri, 8 Apr 2022 13:46:45 +1000 |
Hi, Just to update this was an issue with lwip_sys_arch.c implementation and CMSIS-RTOS2 using dynamic allocation. If you are using Keil RTX version 5 (RTX5) there is a cmsis-pack available: https://developer.arm.com/tools-and-software/embedded/cmsis/cmsis-packs lwIP.lwIP.2.1.2.pack Nikolas From: nikolas.karakotas@sofihub.com <nikolas.karakotas@sofihub.com> Hi, I’m using LWIP-2.1.3 and NETCONN api. I’m using a single thread to do a http request that works well until I noticed an error when it was unable to connect to the server. I replicated the issue by using a wrong port number and this triggers the tcp_slowtmr: max SYN retries reached. Attached is a log. I noticed when I call netconn_delete it throws a: sys_mbox_free error at line 76 ../Application/User/Src/lwip_sys_arch.c I’m unsure if there is an error in the mailboxing or LWIP and how to approach this error. Nikolas |
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