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From: Julian Wollrath <jwollrath at web.de>
Subject: [Powertop] Segmentation fault with powertop --html
Date: Sat, 17 May 2014 11:55:34 +0200
Message-ID: <20140517115534.22c5f593@ilfaris>
To: powertop@lists.01.org
List-ID: <powertop@lists.01.org>

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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/p=
rinters.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=3D (__str=3D..., this=3D0x7fff595c2408) =
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=3Dseconds(a)entry=3D1, w=
orkload=3Dworkload(a)entry=3D0x0) at main.cpp:221
#4  0x00000000004495c2 in make_report (time=3D20, workload=3Dworkload(a)ent=
ry=3D0x7fff595c3b30 "", iterations=3Diterations(a)entry=3D1, file=3Dfile(a)=
entry=3D0x7fff595c2b30 "powertop.html") at main.cpp:254
#5  0x000000000040741d in main (argc=3D2, argv=3D0x7fff595c4c58) at
main.cpp:441

If you need more information, I will happily provide it.

Cheers,
Julian
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