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Hi Steve, Thank you for your reply. I ran the first avwmerge command starting with 2 subjects and adding 1 subject at a time subsequently. I found that including a particular subject caused the avwmerge command to fail (segmentation fault). I reprocessed the data, and the 3rd-level processing went ok, so the problem was probably due to corrupted mask. -Yoshiko > The problem starts at the first long avwmerge command - could you try > running that command by hand to see if it works (if it's hard to > paste such a long command successfully into the terminal then copy > report.log, delete everything else except that command then run that > file as a script. > > It may be that for some reason one of the second-level masks has > gotten deleted or corrupted on your filesystem. > > Cheers, Steve. > > > > > On 14 Mar 2007, at 01:54, Yoshiko Yamada wrote: > > > Dear List, > > > > I'm having a problem processing data from multiple subjects. On the > > 2nd level analysis where > > multiple runs of each subject were processed went fine. However, > > on the 3rd level where multiple > > subjects are processed, I got the following error message in the > > terminal window: > > > > couldn't open "tmpreport.html": no such file or directory > > while executing > > "open tmpreport.html r " > > (procedure "feat5:report_insert_stop" line 4) > > invoked from within > > "feat5:report_insert_stop poststatspics" > > (procedure "feat5:poststats" line 348) > > invoked from within > > "feat5:poststats 0 [ expr $fmri(level) - 1 ]" > > (procedure "feat5:proc" line 1362) > > invoked from within > > "feat5:proc [ file rootname [ lindex $argv 0 ] ]" > > (file "/usr/local/fsl/bin/feat" line 16) > > > > In the report.log (1st one in the attachment), I saw the following > > error: > > > > /usr/local/fsl/bin/avwmaths mask -Tmin mask > > ** ERROR: nifti_image_read(mask): can't open header file > > ** ERROR: nifti_image_open(mask): bad header info > > Error: failed to open file mask > > Error:: FslGetIntensityScaling: Null pointer passed for FSLIO > > > > It seemed that the mask.nii.gz was not created by the avwmerge > > command just before the > > avwmaths command, so I tried running the avwmerge command by itself > > in the terminal and got > > “segmentation fault.” > > > > Is it this “segmentation fault” that is failing the 3rd level > > analysis? What does it mean? From > > reading some of the earlier postings, I understand that > > segmentation fault occurs when you try to > > convert large 3d data to 4d, but the masks that the above avwmerge > > command is trying to > > concatinate are pretty small (~21KB). I also checked the dimensions > > of the masks, and they are all > > the same. > > > > I’d appreciate any help you could give me! > > > > (I tried to post the above message in reply to an earlier posting, > > but it didn't seem to go through. I > > apologize if you have read my earlier message.) > > > > -Yoshiko > > <report.log> > > <report.log> > > > ------------------------------------------------------------------------ > --- > Stephen M. Smith, Professor of Biomedical Engineering > Associate Director, Oxford University FMRIB Centre > > FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve > ------------------------------------------------------------------------ > --- >