perf mem report segfaulting

[Arnaldo Carvalho de Melo]

Hi,

	While trying to test my tmp.perf/ui_browser.horiz_scroll branch
with 'perf mem report' to allow that kind of browsing on the TUI, as of
now it works only on --stdio mode, using the right/left arrow keys, I
noticed this in acme/perf/core (but I saw it too in many previous
revisions, trying to bisect it):

[root@zoo ~]# perf mem record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 3.072 MB perf.data (647 samples) ]

[root@zoo ~]# perf mem report
perf: Segmentation fault
-------- backtrace --------
perf[0x52a08b]
/lib64/libc.so.6(+0x34960)[0x7f8726860960]
perf(addr_map_symbol__inc_samples+0xbb)[0x47abfb]
perf[0x42e93f]
perf(hist_entry_iter__add+0x102)[0x4d9632]
perf[0x42e7ba]
perf[0x4bc4c3]
perf[0x4bc9c1]
perf[0x4bf6b9]
perf(perf_session__process_events+0x390)[0x4be1b0]
perf(cmd_report+0x1038)[0x42faf8]
perf(cmd_mem+0x3ec)[0x44c69c]
perf[0x479113]
perf(main+0x60a)[0x420a5a]
/lib64/libc.so.6(__libc_start_main+0xf0)[0x7f872684bfe0]
perf[0x420b79]
[0x0]
[root@zoo ~]# perf evlist
cpu/mem-loads/pp
cpu/mem-stores/pp
[root@zoo ~]#

Have you noticed this? No time to look at this now :-\

- Arnaldo
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