buglwIP - A Lightweight TCP/IP stack - Bugs: bug #62160, MEM_OVERFLOW_CHECK,...


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bug #62160: MEM_OVERFLOW_CHECK, MEM_STATS_DISPLAY and mem_trim

Submitter:  Jonathan D <jona>
Submitted:  Wed 09 Mar 2022 02:03:38 PM UTC
Category:  None Severity:  3 - Normal
Item Group:  Faulty Behaviour Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Planned Release:  None
lwIP version:  2.1.2

Wed 09 Mar 2022 02:03:38 PM UTC, original submission:  

When MEM_OVERFLOW_CHECK is activated, the "used" memory provided by MEM_STATS_DISPLAY increased every time the "mem_trim" is called (by 32 bytes at a time, MEM_SANITY_REGION_BEFORE and _AFTER are both 16 bytes).
The "used" memory remains constant when MEM_OVERFLOW_CHECK is deactivated.

I though at first that there was a memory leak in my code but now, I'm more into thinking that the issue is in MEM_STATS although I didn't spot exactly what is wrong.

Jonathan D <jona>


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