linux-kernel - Re: [PATCH 0/6] [KBUILD] configuration system improvements

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Message-ID: <49AD75D4.20600@oracle.com>
Date:	Tue, 03 Mar 2009 10:24:20 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Cheng Renquan <crquan@...il.com>
CC:	Sam Ravnborg <sam@...nborg.org>,
	Roman Zippel <zippel@...ux-m68k.org>,
	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] [KBUILD] configuration system improvements

Cheng Renquan wrote:
> On Mon, Mar 2, 2009 at 11:42 AM, Randy Dunlap <randy.dunlap@...cle.com> wrote:
>> Cheng Renquan wrote:
>>> This group of patches improve the usability of kernel configuration system,
>>> mainly,
>>>
>>> 1. add symbol's value shown accompanied in config item's help message;
>>> 2. move the real plumbing functions code from mconf.c to menu.c, make them
>>>    be able to be shared with other configuration methods;
>>> 3. add "symbol's value shown" support for gconfig/xconfig/config;
>>>
>>>   0001--KBUILD-add-symbol-value-to-help-find-the-real-depe.patch
>>>   0002--KBUILD-add-menu_get_ext_help-function-to-display-m.patch
>>>   0003--KBUILD-menuconfig-improvements.patch
>>>   0004--KBUILD-make-use-of-menu_get_ext_help-in-gconfig.patch
>>>   0005--KBUILD-make-use-of-menu_get_ext_help-in-qconfig.patch
>>>   0006--KBUILD-make-use-of-menu_get_ext_help-in-make-conf.patch
>>>
>>> I found gconfig still lack of "search by symbol" support, and that would be
>>> in another patch.
>>>
>>> Request for comments, thanks.
>> Hi,
>>
>> I still like this idea a lot.  However, with "make gconfig" I am
>> seeing a segfault when I click on "Firmware Drivers" in the main menu.
>> I only see this with these patches applied.
>>
>> Other than that, they look good to me.
>>
>>
>> Here's the gconfig info:
>> rddunlap@...mera:linux-2.6.29-rc6-git5> make ARCH=x86_64 O=xx64 gconfig &
>> [1] 10722
>> rddunlap@...mera:linux-2.6.29-rc6-git5>   GEN     /local/linsrc/tmp/linux-2.6.29-rc6-git5/xx64/Makefile
>> scripts/kconfig/gconf arch/x86/Kconfig
>> make[2]: *** [gconfig] Segmentation fault
>> make[1]: *** [gconfig] Error 2
>> make: *** [sub-make] Error
>>
>>
>> and from the kernel log:
>>
>> gconf[10868]: segfault at 0000000000000070 rip 00000000004111b6 rsp 00007ffff67cd6f0 error 4
> 
> Could you tell what distribution are you using? The versions of your
> glibc, gtk+2.0, and glibc? If you can correctly build other gtk+
> programs?

This is on OpenSUSE 10.3 on x86_64.

glibc-2.6.1-18
gtk2-2.12.0-5

I don't know that I have any other gtk+ programs.

> I have developed these patches on default Fedora 10 i686, it runs
> well, and today I have tested it under a latest Gentoo x86_64 desktop,
> all seems run well here.

Here's a backtrace from gdb.  gconfig was built without -d, however.

(gdb) set args arch/x86/Kconfig
(gdb) run
Starting program: /local/linsrc/tmp/linux-2.6.29-rc6-git5/xx64/scripts/kconfig/gconf arch/x86/Kconfig

Program received signal SIGSEGV, Segmentation fault.
0x00000000004111b6 in get_symbol_str ()
(gdb) bt
#0  0x00000000004111b6 in get_symbol_str ()
#1  0x0000000000408acb in on_treeview2_cursor_changed ()
#2  0x00002ae6c6921d2f in g_closure_invoke ()
   from /usr/lib64/libgobject-2.0.so.0
#3  0x00002ae6c69341fd in ?? () from /usr/lib64/libgobject-2.0.so.0
#4  0x00002ae6c6935c55 in g_signal_emit_valist ()
   from /usr/lib64/libgobject-2.0.so.0
#5  0x00002ae6c6936043 in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#6  0x00002ae6c54a1ada in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#7  0x00002ae6c54a85de in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#8  0x00002ae6c53b3bbf in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#9  0x00002ae6c6921d2f in g_closure_invoke ()
   from /usr/lib64/libgobject-2.0.so.0
#10 0x00002ae6c69345f6 in ?? () from /usr/lib64/libgobject-2.0.so.0
#11 0x00002ae6c6935989 in g_signal_emit_valist ()
   from /usr/lib64/libgobject-2.0.so.0
#12 0x00002ae6c6936043 in g_signal_emit () from /usr/lib64/libgobject-2.0.so.0
#13 0x00002ae6c54baff5 in ?? () from /usr/lib64/libgtk-x11-2.0.so.0
#14 0x00002ae6c53acef2 in gtk_propagate_event ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#15 0x00002ae6c53ade95 in gtk_main_do_event ()
   from /usr/lib64/libgtk-x11-2.0.so.0
#16 0x00002ae6c5bb67bc in ?? () from /usr/lib64/libgdk-x11-2.0.so.0
#17 0x00002ae6c6f92064 in g_main_context_dispatch ()
   from /usr/lib64/libglib-2.0.so.0
#18 0x00002ae6c6f9535d in ?? () from /usr/lib64/libglib-2.0.so.0
#19 0x00002ae6c6f95657 in g_main_loop_run () from /usr/lib64/libglib-2.0.so.0
#20 0x00002ae6c53ae263 in gtk_main () from /usr/lib64/libgtk-x11-2.0.so.0
#21 0x000000000040a7c5 in main ()
(gdb) quit


-- 
~Randy  [would be nice to have some kconfig debugging options]

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