[openib-general] OFED-1.1: *** stack smashing detected ***: opensm terminated

[Hal Rosenstock]

"MAD messages received with unsupported base version 0" means the MADs are somehow corrupted. Current (and only) base version is 1.
 
What HCA are you using ? What firmware ?
 
As far as the stack smashing goes, it would be nice to know the file and line number where this occurred. There have been several bugs recently fixed which might relate to this. Using the -fstack-protector argument (add to CFLAGS) to compile in automatic buffer overflow protection and seeing what errors or warnings are generated might be instructive.
 
-- Hal
 
________________________________

From: openib-general-bounces at openib.org on behalf of chris_youb at yahoo.ca
Sent: Thu 11/9/2006 9:01 PM
To: openib-general at openib.org
Subject: [openib-general] OFED-1.1: *** stack smashing detected ***: opensm terminated



Setups:

A) Suse 10.0 w/ OFED 1.1
B) Ubuntu 6.10 (native drivers), self compiled opensm from OFED 1.1

Suse - I've successfully setup opensm on the Suse system and it appears to be running fine (has been for days).

Ubuntu - Thanks to Roland D. I setup the ib drivers on a new Ubuntu 6.10 box.  I've also compiled opensm from OFED-1.1.  It runs, allocates LIDs and otherwise appears OK.  But it terminates after a minute as follows:

*** stack smashing detected ***: opensm terminated
Aborted (core dumped)



Observations: On the Suse system I periodically get "MAD received with unsupported base version 0" in the console window but it continues on.  On the Ubuntu box I never see them, except in /var/log/messages I get "ib_mad: MAD received with unsupported base version 0" around the same time it crashes.  But that could be coincidence.

Questions: I looked into the stack smashing message and it appears to be a safety check from gcc, which could be a false positive?  Anyways, I am running gcc 4.1.2.  Is there a way to:

A) confirm if this is an error (what do I need to provide)
B) turn off this check via a compiler flag (in the case of a false positive).

Thanks.

--
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