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- 2020-5-6
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10金钱
最近在做modbustcp从站，用CubeMX配置的freertos+lwip工程，采用freemodbus源码demo中MCF5235TCP中的接口文件移植的freemodbus，硬件为阿波罗F429，程序运行一段时间后会崩溃，打印信息为：
Assertion "pcb->snd_queuelen >= pbuf_clen(next->p)" failed at line 1111 in ../Middlewares/Third_Party/LwIP/src/core/tcp_in.c
Assertion "pbuf_free: p->ref > 0" failed at line 753 in ../Middlewares/Third_Party/LwIP/src/core/pbuf.c
DEBUG: MBTCP-CLOSE: Closed connection to 192.168.0.182.
Assertion "pcb->snd_queuelen >= pbuf_clen(next->p)" failed at line 1111 in ../Middlewares/Third_Party/LwIP/src/core/tcp_in.c
DEBUG: MBTCP-ACCEPT: Accepted new client 192.168.0.182
Assertion "pcb->snd_queuelen >= pbuf_clen(next->p)" failed at line 1111 in ../Middlewares/Third_Party/LwIP/src/core/tcp_in.c
Assertion "pbuf_free: p->ref > 0" failed at line 753 in ../Middlewares/Third_Party/LwIP/src/core/pbuf.c
Assertion "mem_free: illegal memory: double free" failed at line 652 in ../Middlewares/Third_Party/LwIP/src/core/mem.c
Assertion "pbuf_free: p->ref > 0" failed at line 753 in ../Middlewares/Third_Party/LwIP/src/core/pbuf.c
有大神遇到过这种情况吗，是什么原因导致的
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最佳答案
查看完整内容[请看2#楼]
问题已经解决，原因是lwip内核任务tcpip_thread的优先级设置的比modbus任务优先级高，将后者优先级设置比前者大后，运行正常，目前没有出现掉线崩溃的现象
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发表于 2021-6-22 16:01:58
楼主
发表于 2021-6-23 01:41:05
