On Wed, Oct 02, 2013 at 04:36:45PM +0530, Ramkumar Ramachandra wrote: > Hi, > > I tried using the `perf timechart` command after a `sudo perf > timechart record -- git status`, and it segfaulted. Backtrace follows: > > Program received signal SIGSEGV, Segmentation fault. > 0x0000000000000000 in ?? () > (gdb) bt > #0 0x0000000000000000 in ?? () > #1 0x000000000047d728 in perf_session_deliver_event > (session=session@entry=0x8ea450, event=event@entry=0x7ffff7f13f98, > sample=sample@entry=0x7fffffffd530, > tool=tool@entry=0x7fffffffd7a0, file_offset=file_offset@entry=8088) > at util/session.c:1006 > #2 0x000000000047faec in perf_session__process_event > (file_offset=8088, tool=0x7fffffffd7a0, event=0x7ffff7f13f98, > session=0x8ea450) at util/session.c:1098 > #3 __perf_session__process_events (session=session@entry=0x8ea450, > data_offset=<optimized out>, > data_size=<optimized out>, file_size=635384, > tool=tool@entry=0x7fffffffd7a0) at util/session.c:1360 > #4 0x000000000047ff81 in perf_session__process_events > (self=self@entry=0x8ea450, tool=tool@entry=0x7fffffffd7a0) > at util/session.c:1403 > #5 0x000000000042f12a in __cmd_timechart (output_name=0x4ee399 > "output.svg") at builtin-timechart.c:1009 > #6 cmd_timechart (argc=0, argv=0x7fffffffdf20, prefix=<optimized > out>) at builtin-timechart.c:1116 > #7 0x0000000000419925 in run_builtin (p=p@entry=0x725f90 > <commands+240>, argc=argc@entry=1, > argv=argv@entry=0x7fffffffdf20) at perf.c:319 > #8 0x0000000000419199 in handle_internal_command > (argv=0x7fffffffdf20, argc=1) at perf.c:376 > #9 run_argv (argv=0x7fffffffdd20, argcp=0x7fffffffdd2c) at perf.c:420 > #10 main (argc=1, argv=0x7fffffffdf20) at perf.c:521 > > I compiled it with EXTRA_CFLAGS="-O0 -g", so all the debugging symbols > should be available. Not sure what's going on, or why I needed sudo to > record data in the first place.
hi, what perf version are you running? I can't hit the issue and also the file lines in backtrace indicate it's not current one. thanks, jirka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
