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On Sun, Sep 07, 2008 at 07:49:34PM -0700, Om Narasimhan wrote:<snip>
For example, kernel/pid.c:38 in my tree defines pid_max as,
int pid_max = PID_MAX_DEFAULT;
When I try printing this value using the below scriptlet I get errors.
$ sudo stap -g -u -vv -e 'probe begin { printf("pid_max = %d\n", $pid_max) ; exit() }'
stap -ve 'probe kernel.function("find_get_pid") {printf("pid_max = %d\n", $pid_max); exit()}'Thanks.
Pass 1: parsed user script and 43 library script(s) in 330usr/0sys/453real ms. Pass 2: analyzed script: 1 probe(s), 2 function(s), 0 embed(s), 0 global(s) in 390usr/650sys/9779real ms. Pass 3: translated to C into "/tmp/stapAS2qBy/stap_d737858677ec9922f479339c1fe4be44_851.c" in 170usr/270sys/482real ms. Pass 4: compiled C into "stap_d737858677ec9922f479339c1fe4be44_851.ko" in 3180usr/430sys/5443real ms. Pass 5: starting run. pid_max = 32768
Any function in kernel/pid.c may also be used.
Is my understanding correct? Thanks, Om.
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