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* Ability to save the output of the ustack() and jstack() actions into a variable. |
* Ability to modify args[] and/or uregs[] (see [RFE #5005776|http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=5005776] and [this thread|https://cn.opensolaris.org/jive/thread.jspa?threadID=52476&tstart=120]). Some argue that DTrace is only meant to find (not fix) problems, but support for destructive actions suggests otherwise -- what else would you use them for? DTrace is already useful for temporary fixes... unless the problem lives in a register. DTrace scripts take minutes to write and affect live programs. By contrast, even the most responsive tech support would take some days to produce a patch, and most people would have to wait weeks, months, or forever for a fix to arrive. |