It looks like ustack helper support is disabled in your OS. I haven't
looked at OpenIndiana before, but if you'll open issue on github - I'll
probably take a look at it eventually.

Cheers,
Fedor.


On Thu, Jan 31, 2013 at 9:06 AM, Jonathan Dahan <[email protected]>wrote:

> From the same article, try
>
> c++filt < stacks.out > demangled.out
>
>
> On Wednesday, January 30, 2013 4:44:35 PM UTC-5, Lars Jacob wrote:
>>
>> Hi,
>>
>> I try to generate one of this nice flame graphs of my node application,
>> following the blog entry here: http://dtrace.org/blogs/dap/**
>> 2012/04/25/profiling-node-js/<http://dtrace.org/blogs/dap/2012/04/25/profiling-node-js/>
>>
>> I got already so far to install an openindiana virtual machine, compiled
>> node (v0.8.18, 32bit environment, --with-dtrace) and got some output from
>> dtrace. Unfortunately the stack traces are pretty useless because I cant
>> see the symbols:
>>
>>      node`_**ZN2v88internal16Utf8LengthHelp**erEPNS0_6StringEiibiPbS3_+**
>> 0x27b
>>               node`_**ZN2v88internal10Utf8LengthENS0**
>> _6HandleINS0_6StringEEE+0x2d
>>               node`_**ZN2v86String9Utf8ValueC1ENS_**
>> 6HandleINS_5ValueEEE+0xdd
>>               node`_**ZN4nodeL4OpenERKN2v89Arguments**E+0xfc
>>               0x4d654f49
>>               0x4d64e1e8
>>               0x4d64d6aa
>>               0x4d64d4c1
>>               0x4d64a35f
>>               0x4d63f617
>>               0x4d60e6c1
>>               0x4e50d6d2
>>               0x4e58b999
>>               0x4d625485
>>               0x4d651577
>>               0x4d64d4f9
>>               0x4d64a35f
>>               0x4d63f617
>>               0x4d60e6c1
>>               0x4e50da55
>>               0x4d651de4
>>               0x4d651bcb
>>               0x4d625485
>>               0x4d651577
>>               0x4d64d4f9
>>               0x4d64a35f
>>               0x4d63f617
>>               0x4d63f173
>>               0x4d63ee19
>>               0x4d622299
>>               0x4d6134ca
>>               node`_**ZN2v88internalL6InvokeEbNS0_**6HandleINS0_**
>> 10JSFunctionEEENS1_INS0_**6ObjectEEEiPS5_Pb+0x118
>>               node`_**ZN2v88internal9Execution4CallE**
>> NS0_6HandleINS0_6ObjectEEES4_**iPS4_Pbb+0x5d
>>               node`_ZN2v88Function4CallENS_**6HandleINS_6ObjectEEEiPNS1_*
>> *INS_5ValueEEE+0x120
>>               node`_ZN4nodeL4SpinEP9uv_idle_**si+0xf1
>>               node`uv__run_idle+0x3c
>>               node`uv_run+0x63
>>               node`_ZN4node5StartEiPPc+0x124
>>               node`main+0x1b
>>               node`_start+0x83
>>                 1
>>
>> I guess there is some issue with the ustack helpers... Do I need to
>> enable something special in my code or in the node process?
>>
>> Any help would be appreciate!
>>
>> Bests,
>> Lars
>>
>>  --
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