linux-kernel - Re: [PATCHSET 0/7] perf tools: A couple of TUI improvements (v2)

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Message-ID: <20131220173350.GB10902@krava.redhat.com>
Date:	Fri, 20 Dec 2013 18:33:51 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCHSET 0/7] perf tools: A couple of TUI improvements (v2)

On Fri, Dec 20, 2013 at 02:11:11PM +0900, Namhyung Kim wrote:
> Hello,
> 
> I was playing with TUI code and added two new windows.  One for
> showing log messages and another for showing header information.
> (Maybe they can be implemented on the GTK code too someday.)
> 
>  * changes from v1)
>   - fix segfault on perf top (Ingo)
>   - split print function handling patch (Arnaldo)
>   - add filtering support on log window (Jiri, Ingo)
> 
> 
> I put the patches on 'perf/tui-v2' branch in my tree:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
> 
> Any feedbacks are more than welcome, thanks
> Namhyung

got segfault in perf top:
(pressed 'l' and several searches)

0x14cde0 __memmove_ssse3_back: period++ [addr: 0x14db58, 0xd78, evidx=0] => 10
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffeaf4a700 (LWP 8368)]
____rb_erase_color (augment_rotate=<optimized out>, root=<optimized out>, parent=0x157bd70)
    at ../../lib/rbtree.c:229
229                                     rb_set_parent_color(tmp1, parent, RB_BLACK);
Missing separate debuginfos, use: debuginfo-install audit-libs-2.3.2-1.fc19.x86_64 elfutils-libelf-0.156-5.fc19.x86_64 elfutils-libs-0.156-5.fc19.x86_64 libunwind-1.1-2.fc19.x86_64 nss-softokn-freebl-3.15.3-1.fc19.x86_64 numactl-libs-2.0.8-4.fc19.x86_64 perl-libs-5.16.3-266.fc19.x86_64 python-libs-2.7.5-9.fc19.x86_64 slang-2.2.4-8.fc19.x86_64 xz-libs-5.1.2-4alpha.fc19.x86_64 zlib-1.2.7-10.fc19.x86_64
(gdb) bt
#0  ____rb_erase_color (augment_rotate=<optimized out>, root=<optimized out>, parent=0x157bd70)
    at ../../lib/rbtree.c:229
#1  rb_erase (node=node@...ry=0x29bb500, root=root@...ry=0x946a00) at ../../lib/rbtree.c:397
#2  0x000000000049e0f4 in hists__collapse_resort (hists=0x9469f8, prog=prog@...ry=0x0) at util/hist.c:567
#3  0x0000000000432135 in perf_top__sort_new_samples (arg=0x7fffffffb270) at builtin-top.c:553
#4  0x00000000004cb64d in hist_browser__run (hbt=0x7fffeaf49ea0, ev_name=0x946c60 "cycles", 
    browser=<optimized out>) at ui/browsers/hists.c:340
#5  perf_evsel__hists_browse (evsel=evsel@...ry=0x946950, nr_events=nr_events@...ry=1, 
    helpline=helpline@...ry=0x57dc78 "For a higher level overview, try: perf top --sort comm,dso", 
    ev_name=0x946c60 "cycles", left_exits=left_exits@...ry=false, hbt=hbt@...ry=0x7fffeaf49ea0, 
    min_pcnt=min_pcnt@...ry=0, env=env@...ry=0x947000) at ui/browsers/hists.c:1430
#6  0x00000000004cd425 in perf_evlist__tui_browse_hists (evlist=0x8e6840, 
    help=help@...ry=0x57dc78 "For a higher level overview, try: perf top --sort comm,dso", 
    hbt=hbt@...ry=0x7fffeaf49ea0, min_pcnt=0, env=0x947000) at ui/browsers/hists.c:1959
#7  0x0000000000433928 in display_thread_tui (arg=0x7fffffffb270) at builtin-top.c:581
#8  0x00000031c5407c53 in start_thread (arg=0x7fffeaf4a700) at pthread_create.c:308
#9  0x00000031c48f5dbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
(gdb) 

haven't checked deeply yet

jirka
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