We will investigate the issue further.
From: Óscar Peña-Nogales <open...@gmail.com>
Sent: Wednesday, July 9, 2025 3:00 AM
To: Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] Re: mri_convert error: Floating point exception (core
dumped)
External Email - Use Caution
Yes, that seems to execute the command correctly as in FS7.4.1. Is it however
possible to modify something and execute it as it should be in FS8.0.0?
Thanks
On Mon, 7 Jul 2025 at 15:33, Huang, Yujing
<yhuan...@mgh.harvard.edu<mailto:yhuan...@mgh.harvard.edu>> wrote:
Can you try ‘-dsold’ in FS8.0.0 instead? It should behave the same as ‘-ds’ in
FS7.4.1
Yujing
From: Óscar Peña-Nogales <open...@gmail.com<mailto:open...@gmail.com>>
Sent: Monday, July 7, 2025 7:27 AM
To: freesurfer@nmr.mgh.harvard.edu<mailto:freesurfer@nmr.mgh.harvard.edu>
Subject: [Freesurfer] mri_convert error: Floating point exception (core dumped)
External Email - Use Caution
Dear,
I'm attempting to increase the resolution of an image but I get the following
error when I run the mri_convert command:
Command:
mri_convert -rt nearest -it nii -i XX.nii.gz -ds 0.2 0.2 0.2 -ot nii -o
XX_sr_temp.nii.gz
Log:
reading from XX.nii.gz...
TR=10.01, TE=4.75, TI=0.00, flip angle=50.00
i_ras = (-0.99768, -0.0561452, 0.0384932)
j_ras = (0.0571764, -0.998019, 0.026235)
k_ras = (0.036944, 0.0283751, 0.998914)
DownsampleFactor = 0.200000, 0.200000, 0.200000
Error:
Floating point exception (core dumped)
I was not able to find any similar error on the mailing list. Does anyone have
any thoughts on how to trouble-shoot this one?
More info:
1) FreeSurfer version: freesurfer-linux-ubuntu22_x86_64-8.0.0-20250204-0f2bd3a
2) Platform:
Distributor ID: Ubuntu
Description: Ubuntu 22.04.5 LTS
Release: 22.04
Codename: jammy
3) uname -a: Linux eec78b7407cc 6.8.0-60-generic #63~22.04.1-Ubuntu SMP
PREEMPT_DYNAMIC Tue Apr 22 19:00:15 UTC 2 x86_64 x86_64 x86_64 GNU/Linu
Note1: I also tried with FreeSurfer 7.4.1, and the command, with the same input
data, works in that version. Nevertheless, I wanted to update to 8.0.0.
Note2: The same command does work on 8.0.0 when -ds >1
Thanks in advance.
Óscar
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