[lwip-devel] [bug #66173] Getting LWIP_ASSERT "pbuf_free: p->ref > 0"

[ShashankD]

URL:
  <https://savannah.nongnu.org/bugs/?66173>

                 Summary: Getting LWIP_ASSERT "pbuf_free: p->ref > 0" 
                   Group: lwIP - A Lightweight TCP/IP stack
               Submitter: shashankd
               Submitted: Thu 05 Sep 2024 07:45:22 AM UTC
                Category: pbufs
                Severity: 3 - Normal
              Item Group: Crash Error
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: 2.2.0


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Follow-up Comments:


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Date: Thu 05 Sep 2024 07:45:22 AM UTC By: ShashankD <shashankd>
I am using lwIP with FREERTOS for ST eiger controller.

When I am running iperf as server I am getting LWIP_ASSERT "pbuf_free: p->ref
> 0".

I tried increasing PBUF_POOL_SIZE to even 80, MEMP_NUM_TCPIP_MSG_INPKT to 256,
TCPIP_MBOX_SIZE to 256.
Still I am getting same issue. 

Sometimes from tcpip_thread_handle_msg I am getting LWIP_ASSERT("tcpip_thread:
invalid message", 0);

These same asserts are observed even when I am putting a lot of load on
ethernet using MQTT, continue ping, etc. So in general I think the issue is
when ethernet is loaded.

Any configurations or fixes I can try to resolve this?








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