[mapserver-users] mapcache_seed segfault when using threading [SEC=UNCLASSIFIED]

[Matthew Doyle]

Hi Thomas,

Thanks for getting back to me.

It seems we have reached an interesting situation.  After reconfiguring
(with --enable-debug), reinstalling, executing gdb and seeding using 'run'
with the same params, I can not reproduce the segfault no matter how many
threads I throw at it, even all the way up to 64. However, outside of gdb I
get the segfault as always. 

Perhaps we have some sort of race condition or timing issue. Some googling
shows that this is not entirely uncommon. Some others in the same boat have
suggested running with Valgrind.
(http://stackoverflow.com/questions/7057651/cannot-reproduce-segfault-in-gdb) 

Could you please advise on the next step? Would the core dump be useful?

Best,
Matt



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