[Coin-discuss] maxcut still segfaults

[Ted Ralphs]

Paul,

Sorry for the delay--the patch has now been committed.

Ted

Paul Pacheco wrote:

> I posted this earlier, but it has not been commited nor has the problem been 
> fixed. 
> 
> I am running maxcut with pvm.
> 
> When I start bcps, I get a segmentation fault.
> 
> I tracked the problem down with gdb and this is what I have found.
> 
> The segmentation fault occurs on
> 
> Bcp/include/BCP_vector.hpp:101
> Bcp/TM/BCP_tm_msgproc.cpp:175
> Bcp/TM/BCP_tm_main.cpp:172
> 
> 
> it seems p.slaves.cg is null because it never got initialized in the 
> BCP_tm_start_processes function because the CgProcessNum is 0, so this case
> was not taken into account in BCP_tm_notify_processes. Note the rest of the 
> code does have the ifs shown in the patch. The rest of the functions do not 
> assume there has to be a CgProcessNum.
> 

-- 
Dr. Ted Ralphs
Assistant Professor
Industrial and Systems Engineering
Lehigh University
(610)758-4784
tkralphs at lehigh.edu
www.lehigh.edu/~tkr2