[Lcdproc] lcdproc-0.5.0 segfaults

Laurent B. lorijho@yes.lu
Thu May 4 13:21:01 2006


Yes the client actually does a menu_set_main "" to set its menu as the 
default one. This worked without complications prior to 0.5.0 with 
lcdproc from CVS so I never thought that it would fail now because of 
menu_set_main. Thanks for the hint Andrew.

So should clients then simply avoid setting their menu as the default 
because menu_set_item is evil or is there really a bug in the server 
code that needs to be resolved ??

Andrew Foss wrote:
> sounds like something different than what I saw.
>
> Does your client do a "menu_set_main" command?
>
> It looks like it may be possible that after your client stops, the 
> main menu item is still set so when the main menu is attempted to be 
> brought up, it still thinks the main menu is the menu your client set 
> as main w/ the menu_set_main command?
>
> andrew
>
> Laurent B. wrote:
>> Hi Andrew,
>> LCDd crashes here (in the scenario described in my first mail)  every 
>> time in foreground "-f true" or as daemon "-f false".
>> Andrew Foss wrote:
>>> I've seen it as well, I find if I don't run it through the 
>>> /etc/rc.d/init.d/ script using the "daemon" function it doesn't 
>>> fault, I added a trap to try and caatch it, but couldn't and haven't 
>>> had time to gdb myself, sorry.
>>>
>>> andrew
>>>
>>> lorijho@yes.lu wrote:
>>>> Hi to all.
>>>> I'm observing a crash of lcdproc-0.5.0. It can be reproduced like 
>>>> this:
>>>> A client (with menu) disconnects from LCDd. After that the "LCDproc
>>>> Server" screen appears again like it should. Showing "Client: 0  \n
>>>> Screens: 0" like always. But then when I press the menu button to 
>>>> enter
>>>> the server menu LCDd terminates with signal 11 segmantation fault. Can
>>>> be reproduced everytime.
>>>>
>>>> The backtrace:
>>>> Reading symbols from /lib/libdl.so.2...done.
>>>> Loaded symbols for /lib/libdl.so.2
>>>> Reading symbols from /lib/libc.so.6...done.
>>>> Loaded symbols for /lib/libc.so.6
>>>> Reading symbols from /lib/ld-linux.so.2...done.
>>>> Loaded symbols for /lib/ld-linux.so.2
>>>> Reading symbols from /usr/local/lib/lcdproc/lirc.so...done.
>>>> Loaded symbols for /usr/local/lib/lcdproc/lirc.so
>>>> Reading symbols from /usr/lib/liblirc_client.so.0...done.
>>>> Loaded symbols for /usr/lib/liblirc_client.so.0
>>>> Reading symbols from /usr/local/lib/lcdproc/CFontz.so...done.
>>>> Loaded symbols for /usr/local/lib/lcdproc/CFontz.so
>>>> #0  0x0804fbfb in menuitem_reset (item=0x9df2cb0) at menuitem.c:527
>>>> 527                     func = reset_table[item->type];
>>>> (gdb) bt
>>>> #0  0x0804fbfb in menuitem_reset (item=0x9df2cb0) at menuitem.c:527
>>>> #1  0x08054325 in menuscreen_switch_item (new_menuitem=0x9df2cb0) at
>>>> menuscreens.c:219
>>>> #2  0x0805450c in menuscreen_key_handler (key=0x9debe50 "/") at
>>>> menuscreens.c:390
>>>> #3  0x0804d57e in input_internal_key (key=0x9debe50 "/") at 
>>>> input.c:151
>>>> #4  0x0804d7c4 in handle_input () at input.c:117
>>>> #5  0x0804f4c7 in main (argc=539521829, argv=0x6d657469) at main.c:838
>>>>
>>>> On this system:
>>>> uname -a :
>>>> Linux 2.6.16-1.2096_FC5 #1 Wed Apr 19 05:14:36 EDT 2006 i686 athlon 
>>>> i386
>>>> GNU/Linux
>>>>
>>>> gcc -v:
>>>> Using built-in specs.
>>>> Target: i386-redhat-linux
>>>> Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
>>>> --infodir=/u sr/share/info --enable-shared --enable-threads=posix
>>>> --enable-checking=release - -with-system-zlib --enable-__cxa_atexit
>>>> --disable-libunwind-exceptions --enable- libgcj-multifile
>>>> --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable
>>>> -java-awt=gtk --disable-dssi
>>>> --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2. 0/jre
>>>> --with-cpu=generic --host=i386-redhat-linux
>>>> Thread model: posix
>>>> gcc version 4.1.0 20060304 (Red Hat 4.1.0-3)
>>>>
>>>>
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>>>
>>
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