Hi Arnaldo, Jiri
Running this simple command from tip.git tree, I get:
$ perf record ls
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.011 MB perf.data (9 samples) ]
$ perf script
Segmentation fault (core dumped)
$ gdb perf
(gdb) r script
Program received signal SIGSEGV, Segmentation fault.
0x000000000050f98b in pevent_set_function_resolver (pevent=0x0,
func=0x4b2f50 <machine__resolve_kernel_addr>, priv=0x180bf98) at
event-parse.c:464
464 free(pevent->func_resolver);
(gdb) bt
#0 0x000000000050f98b in pevent_set_function_resolver (pevent=0x0,
func=0x4b2f50 <machine__resolve_kernel_addr>, priv=0x180bf98) at
event-parse.c:464
#1 0x000000000043cf2a in cmd_script (argc=0, argv=0x7fffffffe320,
prefix=<optimized out>) at builtin-script.c:1864
#2 0x0000000000474025 in run_builtin (p=p@entry=0x77a810
<commands+336>, argc=argc@entry=1, argv=argv@entry=0x7fffffffe320) at
perf.c:370
#3 0x000000000041cb50 in handle_internal_command
(argv=0x7fffffffe320, argc=1) at perf.c:429
#4 run_argv (argv=0x7fffffffe0a0, argcp=0x7fffffffe0ac) at perf.c:473
#5 main (argc=1, argv=0x7fffffffe320) at perf.c:588
Looks like something is fundamentally broken here.
Do you know what?
On Wed, Aug 05, 2015 at 03:40:32PM -0700, Stephane Eranian wrote:
> Hi Arnaldo, Jiri
>
> Running this simple command from tip.git tree, I get:
>
>
> $ perf record ls
>
> [ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.011 MB perf.data (9 samples) ]
>
> $ perf script
> Segmentation fault (core dumped)
>
> $ gdb perf
> (gdb) r script
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x000000000050f98b in pevent_set_function_resolver (pevent=0x0,
> func=0x4b2f50 <machine__resolve_kernel_addr>, priv=0x180bf98) at
> event-parse.c:464
> 464 free(pevent->func_resolver);
> (gdb) bt
> #0 0x000000000050f98b in pevent_set_function_resolver (pevent=0x0,
> func=0x4b2f50 <machine__resolve_kernel_addr>, priv=0x180bf98) at
> event-parse.c:464
> #1 0x000000000043cf2a in cmd_script (argc=0, argv=0x7fffffffe320,
> prefix=<optimized out>) at builtin-script.c:1864
> #2 0x0000000000474025 in run_builtin (p=p@entry=0x77a810
> <commands+336>, argc=argc@entry=1, argv=argv@entry=0x7fffffffe320) at
> perf.c:370
> #3 0x000000000041cb50 in handle_internal_command
> (argv=0x7fffffffe320, argc=1) at perf.c:429
> #4 run_argv (argv=0x7fffffffe0a0, argcp=0x7fffffffe0ac) at perf.c:473
> #5 main (argc=1, argv=0x7fffffffe320) at perf.c:588
>
> Looks like something is fundamentally broken here.
> Do you know what?
hi,
yep, it should be already taken care of:
http://marc.info/?l=linux-kernel&m=143863009413104&w=2
jirka
Em Thu, Aug 06, 2015 at 07:41:20AM +0200, Jiri Olsa escreveu:
> On Wed, Aug 05, 2015 at 03:40:32PM -0700, Stephane Eranian wrote:
> > $ perf script
> > Segmentation fault (core dumped)
> > $ gdb perf
> > (gdb) r script
> > Program received signal SIGSEGV, Segmentation fault.
> > 0x000000000050f98b in pevent_set_function_resolver (pevent=0x0,
> > func=0x4b2f50 <machine__resolve_kernel_addr>, priv=0x180bf98) at
> > event-parse.c:464
> > 464 free(pevent->func_resolver);
> > (gdb) bt
> > #0 0x000000000050f98b in pevent_set_function_resolver (pevent=0x0,
> > func=0x4b2f50 <machine__resolve_kernel_addr>, priv=0x180bf98) at
> > event-parse.c:464
> > Looks like something is fundamentally broken here.
> > Do you know what?
> yep, it should be already taken care of:
> http://marc.info/?l=linux-kernel&m=143863009413104&w=2
Yeah, pushed already to Ingo, should land in tip.git soon.
- Arnaldo
Em Thu, Aug 06, 2015 at 11:28:29AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Aug 06, 2015 at 07:41:20AM +0200, Jiri Olsa escreveu:
> > On Wed, Aug 05, 2015 at 03:40:32PM -0700, Stephane Eranian wrote:
> > > $ perf script
> > > Segmentation fault (core dumped)
>
> > > event-parse.c:464
> > > Looks like something is fundamentally broken here.
> > > Do you know what?
>
> > yep, it should be already taken care of:
> > http://marc.info/?l=linux-kernel&m=143863009413104&w=2
>
> Yeah, pushed already to Ingo, should land in tip.git soon.
Yeah, its there already:
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/log/
Has it as:
"perf script: No tracepoints? Don't call libtraceevent."
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=9ee67421fe3b67a0796d6ea620fd5fcb037d3f89
- Arnaldo