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Dtrace String Comparison in predicate don't work


How to trace a program from its very beginning without running it as rootWhat's an alternative for DTrace on Linux?Calling C function from DTrace scriptsDTrace: how to print out memory buffersHow do I log messages / break execution for alloc, retain, release and dealloc of CFType objects?Missing JAVA Procedure names in Time Profiler, Instruments, OS XProfiling Node.JS (code) execution time in Linux32 bit DTrace on OSXWhat is the state of system level tracing in production Linux systems (RH/CentOS and Debian/Ubuntu)?Local Variables in Dtrace






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0















I'm fairly new to dtrace. I'm using it on Oracle Linux 7.



I want the following probe only to fire when the execname equals a defined string. I've tried different ways without success. The way described in most tutorials didn't work



syscall::write*:entry
/execname=="dtrace"/
{
...


This doesn't work.



But the other way around works



syscall::write*:entry
/execname!="dtrace"/
{
...


Now the probe fires for every execname except "dtrace"



What's my mistake?










share|improve this question




























    0















    I'm fairly new to dtrace. I'm using it on Oracle Linux 7.



    I want the following probe only to fire when the execname equals a defined string. I've tried different ways without success. The way described in most tutorials didn't work



    syscall::write*:entry
    /execname=="dtrace"/
    {
    ...


    This doesn't work.



    But the other way around works



    syscall::write*:entry
    /execname!="dtrace"/
    {
    ...


    Now the probe fires for every execname except "dtrace"



    What's my mistake?










    share|improve this question
























      0












      0








      0








      I'm fairly new to dtrace. I'm using it on Oracle Linux 7.



      I want the following probe only to fire when the execname equals a defined string. I've tried different ways without success. The way described in most tutorials didn't work



      syscall::write*:entry
      /execname=="dtrace"/
      {
      ...


      This doesn't work.



      But the other way around works



      syscall::write*:entry
      /execname!="dtrace"/
      {
      ...


      Now the probe fires for every execname except "dtrace"



      What's my mistake?










      share|improve this question














      I'm fairly new to dtrace. I'm using it on Oracle Linux 7.



      I want the following probe only to fire when the execname equals a defined string. I've tried different ways without success. The way described in most tutorials didn't work



      syscall::write*:entry
      /execname=="dtrace"/
      {
      ...


      This doesn't work.



      But the other way around works



      syscall::write*:entry
      /execname!="dtrace"/
      {
      ...


      Now the probe fires for every execname except "dtrace"



      What's my mistake?







      dtrace






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 23 at 9:53









      tbo007tbo007

      7613




      7613






















          1 Answer
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          0














          I don’t know how but a reboot fixed the problem...






          share|improve this answer























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            1 Answer
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            active

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            active

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            0














            I don’t know how but a reboot fixed the problem...






            share|improve this answer



























              0














              I don’t know how but a reboot fixed the problem...






              share|improve this answer

























                0












                0








                0







                I don’t know how but a reboot fixed the problem...






                share|improve this answer













                I don’t know how but a reboot fixed the problem...







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Mar 24 at 5:57









                tbo007tbo007

                7613




                7613





























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