Trouble under FreeBSD

Benedikt Meurer benedikt.meurer at
Tue Mar 23 13:57:40 CET 2004

Benedikt Meurer wrote:
>> (xfce-mcs-manager:57936): libxfce4mcs-CRITICAL **: Unable to open file 
>> /home/master/.xfce4/settings/xfwm4.xml to load data of channel 
>> "xfwm4": No such file or directory
>> (xfce-mcs-manager:57936): libxfce4mcs-CRITICAL **: Failed to close 
>> file /home/master/.xfce4/settings/xfwm4.xml: Bad file descriptor
>  > [snip]
> Wow, this reminds me of the uthread problem with stdio. Please check if 
> any of your mcs plugins is linked with libxml. Then check if your 
> systems uses KSE or uthreads. To get a list of linked libs for a plugin, 
> use the following command:
> objdump -x <plugin>.so | grep "^[ ]\+NEEDED"
> To track this problem, you can do the following: build libc and libthr 
> with debugging information, therefore add the following to /etc/make.conf:
> DEBUG_FLAGS= -O0 -g3
> NOFSCHG= #defined
> NOMAN= #defined
> NOPROFILE= #defined
> Then goto /usr/src/lib/lib{c,thr} and type make; make install. Also 
> remember to build xfce-mcs-manager, libxfce4mcs and atleast 
> xfce-mcs-plugins with --enable-debug=full.
> Afterwards kill xfce-mcs-manager and start xfce-mcs-manager from gdb. 
> Set a breakpoint at mcs-manager.c:1067 and run the process. Then step 
> through the fopen call, this will bring you into the uthread stdio 
> handling at some point, if the problem is caused by a thread issue. If 
> it is, you'll probably find the uthread file descriptor table being 
> setup incorrectly, and the bug is known. If it is not, try to find the 
> cause of the problem and tell me.

I'm sorry, you'll have to trace the open call, not the fopen call.


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