pbuf(packet buffer)是LwIP协议栈中用于表示数据包或数据缓冲区的结构体,ref是一个引用计数,用于跟踪有多少个实体正在使用这个缓冲区。当pbuf的引用计数不大于0时,调用pbuf_free来释放它是不合法的,因为这意味着该缓冲区可能已经被释放或者从未被正确引用,这会导致未定义的行为或程序崩溃。
The error appeared twice in 3 hours. assertion "pbuf_free: p->ref > 0" failed: file "/Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/lwip/core/pbuf.c", line 694, function: pbuf_free abort() was called at PC 0x400d825b on core 1 Backtrace: 0x400882f0:0x3ffd11c0 0x...
Security Insights Additional navigation options New issue Closed Description iloop2020 espressif-bot added Status: OpenedIssue is new on May 5, 2021 github-actions changed the titleassertion "pbuf_free: p->ref > 0" failed:assertion "pbuf_free: p->ref > 0" failed: (IDFGH-5213)on May 5, ...
prvxMBTCPPortReceive( void *pvArg, struct tcp_pcb *pxPCB, struct pbuf *p, err_t xErr ) function, then my code is working perfectly, my device can handle multiple TCP request one by one. but whe i am adding above function then i am getting below errors...
In the lwIP support forum several posts relating to some not yet solved pbuff issues can be read, including at least one that could produce a "pbuf_free: p->ref > 0" assertion. Working in an FTP client, based on lwIP + uC/OS-II, we found that several pbuff related issues could...
LWIP2.1.2版本程序连续运行1个小时左右出现断言“Assertion "pbuf_free: p->ref > 0" failed at ...
使用以太网例程时,在函数中使用pbuf_alloc分配内存后执行发送程序后调用pbuf_free函数似乎不能释放掉原来占用的内存,再次执行pbuf_alloc函数时所申请到的地址会在原来地址的基础上增加”发送字节数+80“, 发送若干包后内存就没有了,进入dabort,这个问题应该如何解决呢?
Assertion "pbuf_free: p->ref > 0" failed at line 650 in ..\LWIP\lwip-1.4.1\src\core\pbuf.c这是什么问题lwip里正常运行都没问题,但运行久了,就会跳出这个问题,之 ...
I am seeing a very occasional "pbuf_free: p->ref > 0" running ESP-IDF v4.1-rc-15-gbd72a9ab2-dirty The application uses many network features (SNTP, DHCP client, TCP, UDP, AWS IoT client). It also coexists with BT. It will often run for days, sometimes weeks, but will eventuall...
q->len = LWIP_MIN((u16_t)rem_len, PBUF_POOL_BUFSIZE_ALIGNED); PBUF_POOL第一次是有offset(offset>=0)。 MEMP_PBUF_POOL是固定分配的,最后一个pool可能有空间浪费,但速度快,一般用在接收/发送数据包的场合。 ØPBUF_REF/PBUF_ROM payload由用户赋值指向 ...