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Hi Mark, after some digging, this seems to happen only with two T1 images which are strongly non isotropic (i.e., great inplane and terrible through), as soon as I stopped processing those images -- which are not very helpful anyways -- no other image gave me that problem. Still not sure why the above would be the case, but well, if it's a non-problem then no need to adjust it.. cheers R ________________________________ From: FSL - FMRIB's Software Library <[log in to unmask]> on behalf of Mark Jenkinson <[log in to unmask]> Sent: 23 May 2017 11:06 To: [log in to unmask] Subject: Re: [FSL] fsl_anat error (memory allocation?) Hi Roman, I haven't seen that before. Is there anything special about your images? Especially the size. All the best, Mark On 19 May 2017, at 21:08, Roman M <[log in to unmask]<mailto:[log in to unmask]>> wrote: Dear experts, I keep bumping into this memory (allocation?) error when I run fsl_anat, during fslsmoothfill (both on 5.0.9 and 5.0.10 -- see below, both versions give the same error). Any advice as to how to get around it or change my settings to get it to work? cheers Roman Extrapolating bias field from central region Cost is 5.65111e-05 *** Error in `/space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill': free(): invalid next size (normal): 0x0000000001ff79f0 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x721af)[0x7f0d3ccc61af] /lib64/libc.so.6(+0x779d6)[0x7f0d3cccb9d6] /lib64/libc.so.6(+0x78723)[0x7f0d3cccc723] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill[0x42140d] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill[0x4f3d1f] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill[0x4fd853] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill[0x4088d7] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill[0x40979e] /lib64/libc.so.6(__libc_start_main+0xf5)[0x7f0d3cc746e5] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill[0x404809] ======= Memory map: ======== 00400000-005ce000 r-xp 00000000 00:27 13547551903 /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill 007ce000-007cf000 rw-p 001ce000 00:27 13547551903 /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fslsmoothfill 007cf000-007d0000 rw-p 00000000 00:00 0 01fe4000-020f3000 rw-p 00000000 00:00 0 [heap] 7f0d34000000-7f0d34021000 rw-p 00000000 00:00 0 7f0d34021000-7f0d38000000 ---p 00000000 00:00 0 7f0d38256000-7f0d38485000 rw-p 00000000 00:00 0 7f0d386b4000-7f0d3cc54000 rw-p 00000000 00:00 0 7f0d3cc54000-7f0d3cdee000 r-xp 00000000 08:01 786441 /lib64/libc-2.22.so 7f0d3cdee000-7f0d3cfed000 ---p 0019a000 08:01 786441 /lib64/libc-2.22.so 7f0d3cfed000-7f0d3cff1000 r--p 00199000 08:01 786441 /lib64/libc-2.22.so 7f0d3cff1000-7f0d3cff3000 rw-p 0019d000 08:01 786441 /lib64/libc-2.22.so 7f0d3cff3000-7f0d3cff7000 rw-p 00000000 00:00 0 7f0d3cff7000-7f0d3d00d000 r-xp 00000000 08:01 786524 /lib64/libgcc_s.so.1 7f0d3d00d000-7f0d3d20c000 ---p 00016000 08:01 786524 /lib64/libgcc_s.so.1 7f0d3d20c000-7f0d3d20d000 r--p 00015000 08:01 786524 /lib64/libgcc_s.so.1 7f0d3d20d000-7f0d3d20e000 rw-p 00016000 08:01 786524 /lib64/libgcc_s.so.1 7f0d3d20e000-7f0d3d30a000 r-xp 00000000 08:01 786449 /lib64/libm-2.22.so 7f0d3d30a000-7f0d3d509000 ---p 000fc000 08:01 786449 /lib64/libm-2.22.so 7f0d3d509000-7f0d3d50a000 r--p 000fb000 08:01 786449 /lib64/libm-2.22.so 7f0d3d50a000-7f0d3d50b000 rw-p 000fc000 08:01 786449 /lib64/libm-2.22.so 7f0d3d50b000-7f0d3d684000 r-xp 00000000 08:01 1982380 /usr/lib64/libstdc++.so.6.0.22 7f0d3d684000-7f0d3d884000 ---p 00179000 08:01 1982380 /usr/lib64/libstdc++.so.6.0.22 7f0d3d884000-7f0d3d88e000 r--p 00179000 08:01 1982380 /usr/lib64/libstdc++.so.6.0.22 7f0d3d88e000-7f0d3d890000 rw-p 00183000 08:01 1982380 /usr/lib64/libstdc++.so.6.0.22 7f0d3d890000-7f0d3d894000 rw-p 00000000 00:00 0 7f0d3d894000-7f0d3d8a9000 r-xp 00000000 08:01 786523 /lib64/libz.so.1.2.8 7f0d3d8a9000-7f0d3daa8000 ---p 00015000 08:01 786523 /lib64/libz.so.1.2.8 7f0d3daa8000-7f0d3daa9000 r--p 00014000 08:01 786523 /lib64/libz.so.1.2.8 7f0d3daa9000-7f0d3daaa000 rw-p 00015000 08:01 786523 /lib64/libz.so.1.2.8 7f0d3daaa000-7f0d3dacb000 r-xp 00000000 08:01 791977 /lib64/ld-2.22.so 7f0d3dc8d000-7f0d3dc93000 rw-p 00000000 00:00 0 7f0d3dcc7000-7f0d3dcca000 rw-p 00000000 00:00 0 7f0d3dcca000-7f0d3dccb000 r--p 00020000 08:01 791977 /lib64/ld-2.22.so 7f0d3dccb000-7f0d3dccc000 rw-p 00021000 08:01 791977 /lib64/ld-2.22.so 7f0d3dccc000-7f0d3dccd000 rw-p 00000000 00:00 0 7ffe47624000-7ffe47646000 rw-p 00000000 00:00 0 [stack] 7ffe4768a000-7ffe4768d000 r--p 00000000 00:00 0 [vvar] 7ffe4768d000-7ffe4768f000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] /space/raid/fmri/fsl-5.0.10-centos6_64/bin/fsl_anat: line 154: 32563 Aborted (core dumped) $@