> I am using Valgrind on my soft which use avis client lirary. > When I start Valgrind : > valgrind --leak-check=yes MySoftName MyArgs > I have an error on the first access of avis (Error sending message > AvisMOM::send : 10004 - Interrupted system call) > But all is fine when I don't use Valgrind..
It is [just barely] possible that valgrind has a bug here. Try to create the smallest case where the problem happens, then file a bug report. See the "Bug Reports" link on www.valgrind.org. Also run under strace, or with valgrind argument "--trace-syscalls=yes"; then investigate the system calls at or near the 'send'. It is also somewhat likely that valgrind has discovered a bug in the 'avis' library, or in the way that MySoftName uses it, or due to the environment of "unexpected" slowness caused by all the checking the valgrind performs. If there is any timeout associated with 'send', then that timeout should be multiplied by a factor of 15 to 20. "#include <valgrind.h>" then "if (RUNNING_ON_VALGRIND) timeout *= 15.0;" Problems with "unexpected" delays are bugs in the original code which have not appeared before; they are not bugs in valgrind. Similarly, a syscall which returns with EINTR is a perfectly normal occurrence which library and application programmers often forget because usually it does not happen. > > I see that we can exclude some error of the list with supp file, but can we > exclude valgrind process on certains lib ? > (supp file is just a filter for the stdout display, isn't it? Tell me if I am > wrong) > I would like to use valgrind by telling it to not analyse access with lib > avis (I don't know if is it possible) No, it is not possible. Valgrind(memcheck) must see every memory access in order to perform correct accounting of initialized/uninitialized. -- ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
