Re: [Powertop] Segmentation fault with powertop --html

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> Hello,
>
> I get a segmentation fault with powertop 2.6 if I want to generate an
> HTML report:
> $ powertop --html
> Loaded 750 prior measurements
> RAPL device for cpu 0
> RAPL device for cpu 0
> Preparing to take measurements
>   unknown op '{'
> [1]    5221 segmentation fault (core dumped)  powertop --html
>
> Backtrace:
> Core was generated by `powertop --html'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x00007f9f6d52019f in std::string::assign(std::string const&) () from
> /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> Traceback (most recent call last):
>   File
> "/usr/share/gdb/auto-load/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.20-gdb.py",
> line 59, in <module>
>     from libstdcxx.v6.printers import register_libstdcxx_printers
>   File
> "/usr/lib/x86_64-linux-gnu/../../share/gcc-4.9/python/libstdcxx/v6/printers.py",
> line 392
>     raise ValueError, "Unsupported implementation for %s" % str(node.type)
>                     ^
> SyntaxError: invalid syntax
> (gdb) backtrace
> #0  0x00007f9f6d52019f in std::string::assign(std::string const&) () from
> /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> #1  0x00000000004114ae in operator= (__str=..., this=0x7fff595c2408) at
> /usr/include/c++/4.8/bits/basic_string.h:547
> #2  report_display_cpu_cstates () at cpu/cpu.cpp:529
> #3  0x0000000000449374 in one_measurement (seconds=seconds(a)entry=1,
> workload=workload(a)entry=0x0) at main.cpp:221
> #4  0x00000000004495c2 in make_report (time=20,
> workload=workload(a)entry=0x7fff595c3b30 "", iterations=iterations(a)entry=1,
> file=file(a)entry=0x7fff595c2b30 "powertop.html") at main.cpp:254
> #5  0x000000000040741d in main (argc=2, argv=0x7fff595c4c58) at
> main.cpp:441
>
> If you need more information, I will happily provide it.
>
> Cheers,
> Julian
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Please give me more details on what platform are you executing this. I
can't reproduce this.

Thank you,
Alexandra.