Mark Belanger wrote:

Sam Drinkard wrote:

After the process starts, strace it:

Correction: strace -p `ps -ef |grep YourProc |grep -v grep | awk '{print $2}'` ^^ -Mark

On Fri, 2005-11-25 at 10:58 -0500, Mark Belanger wrote:

Sam Drinkard wrote:

...

List,

I've got a process(s) that have been exiting on a signal 11, but not all the time. I suspect it's memory related, and I was wondering, is there any way to tell exactly how much memory a particular process has in use at the point it sigsev's ? I can't sit here and watch top or the system monitor, but thought maybe something might be saved somewhere after the fact. The processes are using at the moment, 1.4gb of memory and no swap. I've not seen swap go active during any of this process run, and the machine has 2 GB memory installed. Rather hard to trace down the exact activity when it happens.

After the process starts, strace it: strace -p `ps -ef |grep YourProc |grep -v grep | awk '{print $1}'`

-Mark

Not sure if this will be of any use -- sure isn't any use to me as I don't even begin to understand, but here's the output from the strace... It did not attach to the wrf.exe process which I wanted, but it attached to the mpi process which was running the wrf.exe, at least one of the processes. There are two at runtime.

Sam

[rob@thunder static]$ strace -p `ps -ef|grep wrf.exe|grep -v grep | awk '{print $2}'` Process 1503 attached - interrupt to quit wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 1583 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- wait4(-1, 0x7fbfffe5c4, WNOHANG, NULL) = -1 ECHILD (No child processes) rt_sigreturn(0xffffffffffffffff) = 0 rt_sigaction(SIGINT, {SIG_DFL}, {0x432b60, [], SA_RESTORER, 0x2a955a6280}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 stat("/bin/rm", {st_mode=S_IFREG|0755, st_size=41168, ...}) = 0 access("/bin/rm", X_OK) = 0 rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0 fork() = 1672 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0 rt_sigaction(SIGINT, {0x432b60, [], SA_RESTORER, 0x2a955a6280}, {SIG_DFL}, 8) = 0 wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 1672 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 --- SIGCHLD (Child exited) @ 0 (0) --- wait4(-1, 0x7fbfffe7a4, WNOHANG, NULL) = -1 ECHILD (No child processes) rt_sigreturn(0xffffffffffffffff) = 0 rt_sigaction(SIGINT, {SIG_DFL}, {0x432b60, [], SA_RESTORER, 0x2a955a6280}, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 munmap(0x2a95557000, 4096) = 0 exit_group(0) = ? Process 1503 detached