ok, we'll see if we can replicate it. On Fri, 27 Sep 2019, Троицкий Антон Александрович wrote:

External Email - Use Caution

Dear Bruce,

I don't’ know exactly what happened during the processing.  I have 8 Gb of RAM of my Mac. When the freesurfer is working there is approximately 2 Gb free RAM.

Unfortunately, I don’t know how to check the working of RAM and was there a memory overflow or memory leaking.

It will be great If you could check my data. I want to mention that the same problem was with other data of the same patient. I have uploaded the patient data on my google drive account. So here you can download ithttps://drive.google.com/file/d/1Rx2HG2ZXTTphrYDMRwguOljz9T4K7av1/view?usp= sharing. The error appeared for data for 2019-07-22. But the same problem appeared for data for 2019-09-04.

mris_fix_topology(5832,0x7fffc83843c0) malloc: *** error for object 0x7fcf88f2ca50: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug 0 defective edges Abort Darwin mac-2ap023-2.fccho-moscow.ru 16.7.0 Darwin Kernel Version 16.7.0: Thu Jan 11 22:59:40 PST 2018; root:xnu-3789.73.8~1/RELEASE_X86_64 x86_64 recon-all -s 2019-09-03_3DBrainView_T1_FSSD_2019-09-26_13-11 exited with ERRORS at Thu Sep 26 17:43:07 MSK 2019 To report a problem, see http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting

I saw the system requirements for the freesurfer and there was a mention about 8 RAM. Is it a necessary amount of memory only for freesurfer or for PC station?

Best regards, Anton Troitskii.

Are you running out of memory on the machine? If not, and you upload the ent ire subject dir we will see if we can replicate and fix this problem. cheers Bruce On Tue, 24 Sep 2019, Троицкий Антон Александрович wrote: External Email - Use Caution Hello FreeSurfer Developers,

during the processing of patient data an error occurred. I don’t clearly understand a reason for this error. Technical description of this error is

mris_make_surfaces(10174,0x7fffbf9553c0) malloc: *** error for object 0x2431900024317: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug 000: dt: 0.0000, sse=991989.1, rms=2.913 021: dt: 0.5000, sse=841468.7, rms=1.605 (44.916%) 022: dt: 0.5000, sse=803776.9, rms=1.267 (21.055%) rms = 1.24, time step reduction 1 of 3 to 0.250... 023: dt: 0.5000, sse=793308.4, rms=1.242 (1.982%) Abort

My suggestion is that the error associated with memory allocation and its reading.

Is there any suggestion about why it happened and how can I prevent it in th e future?

Also, I've attached the recon-all.log in case it's of any use.

1. FreeSurfer version: freesurfer-Darwin-OSX-stable-pub-v6.0.0
2. Platform: macOS Sierra 10.12.6
3. uname -a: Darwin mac-2ap023-2.fccho-moscow.ru 16.7.0 Darwin Kernel Versio

n 16.7.0: Thu Jan 11 22:59:40 PST 2018; root:xnu-3789.73.8~1/RELEASE_X86_64 x8 6_64 4) recon-all.log: see attached

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