How do you safely roll back glibc? I
would like to try your fix but also
want to avoid breaking any system
setups. I am using CentOS. Is there
a way to have Xilinx and Matlab
software use a rolled-back glibc but
allow other software to continue
using the current version?

> I tried rolling back glibc and that did fix the XST error issue, but other
> issues are now surfacing so i've opened a 'Webcase' with Xilinx and will
> hopefully hear back from them soon.
>
> Mark
>
>
> On Sun, Dec 25, 2011 at 7:58 PM, John Ford <jf...@nrao.edu> wrote:
>
>> > I need to check some logs, but I do
>> > think somebody did some  of the
>> > CentOS updates that were announced
>> > "available" by the CentOS system
>> > updater. I don't see the reference
>> > to the glibc problem in recent
>> > CASPER email.
>>
>> May mail seems to have bounced that I sent.  In any case, there is a bug
>> in xst that double-frees some memory, triggering glibc to throw a memory
>> exception and scream and die.  We rolled back our glibc and it fixed the
>> problem.  Well, it masks the problem...
>>
>> Sorry about the lack of info!
>>
>> John
>>
>>
>> >
>> >>> A new problem is preventing me from
>> >>> compiling even simple models with
>> >>> bee_xps. For example, when I compile
>> >>> a model containing only the system
>> >>> generator, XSB Core Config, Xilinx
>> >>> constants and CASPER software
>> >>> registers, I receive the following
>> >>> messages from bee_xps.
>> >>>
>> >>> Detected Linux OS
>> >>> #############################
>> >>> ##      System Update      ##
>> >>> #############################
>> >>> #############################
>> >>> ## Block objects creation  ##
>> >>> #############################
>> >>> ######################
>> >>> ## Checking objects ##
>> >>> ######################
>> >>> Running system generator ...
>> >>> Error using ==> gen_xps_files at 328
>> >>> XSG generation failed: ?
>> >>>
>> >>> I am using Xilinx 11.1 and Matlab
>> >>> R2009a on CentOS Linux with the
>> >>> mlib_devel_10_1 library. I was not
>> >>> having this trouble until recently.
>> >>> Other people use my computer, but
>> >>> they know to avoid changing my
>> >>> installations.
>> >>>
>> >>> I attached a simple MDL file that
>> >>> produces the error messages shown
>> >>> above. What is causing gen_xps_files
>> >>> to have trouble at 328?
>> >>>
>> >>>
>> >>
>> >> Hi Ron.  This sounds strangely like the glibc problem I mentioned
>> last
>> >> week.  Did any messages from the OS come up in the window you started
>> >> the
>> >> matlab session from?
>> >>
>> >> You might check to see if anyone updated your glibc lately.
>> >>
>> >> I'll try your mdl tomorrow and see what happens.  I don't have access
>> to
>> >> a
>> >> toolset right now.
>> >>
>> >> John
>> >>
>> >>
>> >>
>> >
>> >
>>
>>
>>
>>
>



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