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[lwip-devel] Bug in core/mem.c
From: |
Matthias Pfaller |
Subject: |
[lwip-devel] Bug in core/mem.c |
Date: |
Tue, 17 Apr 2018 14:00:11 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
Hi,
I just tracked down a bug in mem.c that leads to sporadic memory
corruption when LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT is active.
I think lfree needs to be declared volatile (static struct mem *
volatile lfree). Otherwise the compiler might use the old value of lfree
at the top of the for-loop in mem_malloc.
regards, Matthias
--
Matthias Pfaller Software Entwicklung
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- [lwip-devel] Bug in core/mem.c,
Matthias Pfaller <=