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

Hi,

> > 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
> >
[..]
> 
> Please give me more details on what platform are you executing this. I
> can't reproduce this.

sure, I have a Lenovo Thinkpad X121e with an AMD E-450 APU:
$lspci-nn                                                                                                                                                                                                :(
00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex [1022:1510]
00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6320] [1002:9806]
00:01.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler HDMI Audio [1002:1314]
00:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Port [1022:1512]
00:06.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Port [1022:1514]
00:07.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Port [1022:1515]
00:11.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] [1002:4391]
00:12.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
00:12.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
00:13.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller [1002:4397]
00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396]
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller [1002:4385] (rev 42)
00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) [1002:4383] (rev 40)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller [1002:439d] (rev 40)
00:14.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge [1002:4384] (rev 40)
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 [1022:1700] (rev 43)
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1 [1022:1701]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2 [1022:1702]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3 [1022:1703]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4 [1022:1704]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6 [1022:1718]
00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5 [1022:1716]
00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7 [1022:1719]
01:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6200 [8086:4239] (rev 2c)
02:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd.
RTS5209 PCI Express Card Reader [10ec:5209] (rev 01)

If that information does not help I could also try and bisect the problem.


Cheers,
Julian