> Normally, if it is the OOM that kills a process, you should find a trace of > this in the system logs.
I looked in every system log I could find, there was no indication of OOM killing it in any system log. > I do not understand what you mean by reducing the nr of callers from 12 to 6. > What are these callers ? Is that some threads of the process you are running > under valgrind ? > I mean the --num-callers option core option to valgrind. By default this is 12, and I didn't specify it. I tried using --num-callers=6 to reduce memory consumption. From the valgrind manual this means " Specifies the maximum number of entries shown in stack traces that identify program locations.". By reducing it to 6 I was hoping to reduce valgrind memory consumption in case it really was OOM killer, which I really doubt now. > And just in case: are you using the last version of Valgrind ? Yes I used the last version of valgrind and many earlier versions. > You might use "strace" on valgrind to see what is going on at the time > _exit(0) is called. I did use 'strace' and dmesg. Neither indicated it was OOM killer. I did happen to save the strace log when the SIGKILL happened. Here is the part around the _exit(0): read(2040, "R", 1) = 1 gettid() = 3332 rt_sigprocmask(SIG_SETMASK, ~[ILL TRAP BUS FPE KILL SEGV STOP SYS], NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, ~[], ~[ILL TRAP BUS FPE KILL SEGV STOP SYS], 8) = 0 rt_sigprocmask(SIG_SETMASK, ~[ILL TRAP BUS FPE KILL SEGV STOP SYS], NULL, 8) = 0 gettid() = 3332 write(2041, "S", 1) = 1 exit(0) = ? +++ killed by SIGKILL +++ Don't understand why strace log has exit(0) without the underscore, I know for a fact that it was with the underscore. The strace log doesn't indicate anything special happening around the _exit(0). When I removed it the SIGKILL went away. > You might also start valgrind with some debug trace e.g. -d -d -d -d -v -v > -v -v Was not aware of this and didn't try it. Don't have time to try it now. Regards, Rob _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
