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[lwip-devel] [bug #29375] Error in memp_malloc with CVS Head Revision
From: |
Simon Goldschmidt |
Subject: |
[lwip-devel] [bug #29375] Error in memp_malloc with CVS Head Revision |
Date: |
Tue, 30 Mar 2010 06:59:30 +0000 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.2) Gecko/20100316 Firefox/3.6.2 |
Update of bug #29375 (project lwip):
Status: None => Works For Me
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Follow-up Comment #1:
Although there is currently no (debug-) code checking if an item to free is
not freed twice, looking at the code, your description strongly suggests there
is a problem with your mbox implementation: TCPIP_MSG_INPKT elements are only
allocated in tcpip_input() and freed in tcpip_input() (when sys_mbox_trypost()
returns != ERR_OK) and tcpip_thread() (after the message has been processed).
The code in tcpip_thread leaves virtually no chance to free a message twice,
but you should make sure that your sys_mbox_trypost() implementation either
enqueues the message passed and returns ERR_OK or does not enqueue the message
and returns an error. Otherwise the message might be freed both by
tcpip_input() and tcpip_thread() when sys_mbox_trypost() enqueues the message
but returns != ERR_OK.
I don't think this is a bug in lwIP, however, I'll leave this open as "works
for me" until you checked that.
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/bugs/?29375>
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