I hear that PAE means that while your kernel is 32-bit it is configured to use extended physical addresses so that the OS can use all your physical memory. However, PAE has a limitation: no single application can use more than 4Gb of memory.
This is likely causing your crash. (BTW that is a lot of memory for one recon-all process to ever reach...) To solve this, you need to get a 64 bit installation, or find a way to stop MRIalloc from needing so much memory. Best of luck Joshua - Joshua Lee Center for Mind and Brain & Department of Psychology University of California, Davis On Fri, Dec 2, 2011 at 7:21 AM, Fidel <falf...@hggm.es> wrote: > Dear all, > > I'm having a problem running trac-all -prep. > I receive this error (FROM THE TRAC-ALL.LOG WHICH IS ATTACHED): > > MRIalloc(218, 182, 182): could not allocate 158704 bytes for 25th slice > > Cannot allocate memory > > Linux ubuntu 2.6.38-13-generic-pae #52-Ubuntu SMP Tue Nov 8 17:50:45 UTC > 2011 i686 i686 i386 GNU/Linux > > trac-preproc exited with ERRORS at Fri Dec 2 05:02:57 PST 2011 > > I am using Ubuntu 11.04 (Natty) 32bits and the kernel is > 2.6.38-13-generic-pae, that is, it can use more than 4 GB of RAM (In fact, > I was running it with 16GB of RAM) so we think memory was not the real > cause of the problem. > > The freesurfer version was: freesurfer-Linux-centos4-**stable-pub-v5.1.0 > > Thanks and best regards. > > Fidel. > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > The information in this e-mail is intended only for the person to whom it > is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > >
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