Hi Ron, I used yum's 'downgrade' command:
$sudo yum downgrade glibc glibc-common This should downgrade to the next highest version. Mark On Mon, Dec 26, 2011 at 4:44 PM, <r...@physics.ucsb.edu> wrote: > 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 > >> >> > >> >> > >> >> > >> > > >> > > >> > >> > >> > >> > > > > > >
