> 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@entry=1, > workload=workload@entry=0x0) at main.cpp:221 > #4 0x00000000004495c2 in make_report (time=20, > workload=workload@entry=0x7fff595c3b30 "", > iterations=iterations@entry=1, file=file@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.

> 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@entry=1, >> > workload=workload@entry=0x0) at main.cpp:221 #4 >> > 0x00000000004495c2 in make_report (time=20, >> > workload=workload@entry=0x7fff595c3b30 "", >> > iterations=iterations@entry=1, file=file@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 > this is useful, also what distribution?