Dtrace not displaying stacks on Mac

Asked Oct 11 '15 at 07:47

Active Oct 11 '15 at 08:06

Viewed 217 times

I'm on OSx Yosemite and i'm playing with Node.js CPU profiling. However i can't get DTrace to display the stack traces. I'm suspecting a problem with jstack/ustack.

So if i do a DTrace at 97Hz:

sudo dtrace -n 'profile-97/pid == 54308/{ @[jstack(80, 8192)] = count(); }' -c "sleep 30" > dtrace.out

This is the output i get:

 node`0x40
  1

node`0x18b6160
  1

node`0x71361a61
  1

node`0x83fe8c79
  1

node`0xa845d679
  1

node`0x86ea4389
  1

  4

This is obviously not the output i would like to get since i can't see any details here.

Anything obvious i am misssing? or any alternatives?

edited Oct 11 '15 at 08:06

asked Oct 11 '15 at 07:47

Faris Zacina

Can you get stack traces from other processes? – Andrew Henle Oct 14 '15 at 20:15
@AndrewHenle I just tried dtracing sublime and adobe reader and i get the same output. No stack traces. – Faris Zacina Oct 15 '15 at 07:42
Maybe this applies: http://apple.stackexchange.com/questions/208478/how-do-i-disable-system-integrity-protection-sip-aka-rootless-on-os-x-10-11 – Andrew Henle Nov 02 '15 at 15:45
Nope. I am not using ElCapitan – Faris Zacina Nov 02 '15 at 16:36

Dtrace not displaying stacks on Mac

0 Answers0