I think the linesearch message is a red herring. We've seen it lots of times when the process runs fine. Are you sure some that there isn't something else?

On Wed, 6 Jun 2012, Jeff Thompson wrote:

Hi -

Was there ever a solution found for this? I am currently having the same problem.

Thanks,

Jeff Thompson

Can you send us e recon-all.log file?

On Aug 8, 2011, at 4:30 AM, "Irwin, William" <WIrwin at memory.ucsf.edu> wrote:

...

Hi-

I?m at a bit of a loss as to how to address and/or fix these errors.

The native input images are very good quality; the conversion to T1.mgz is fine; the brainmask.mgz is good,

a bit of dura remained at the parietal/occipital region (very common); otherwise, the skull stripping is ver y clean.

...

The recon-all ?finished? but with errors as expected. Processing ?continued? to the end, but there is no output exc

ept in /mri and /touch.

...

Doing: #@# Skull Stripping

First under ?Computing MAP estimate using 3481 samples...?

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESoutof QuasiNewtonEMA: 005: -log(p) = 10327.2 tol 0.000010

...

Then several of the same under ?EM alignment process ...?

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESpass 2 through quasi-newton minimizat ion...

...

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESpass 3 through quasi-newton minimizat ion...

...

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESpass 4 through quasi-newton minimizat ion...

...

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESpass 5 through quasi-newton minimizat ion...

...

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESoutof QuasiNewtonEMA: 017: -log(p) = 1145822.4 tol 0.000000

...

Then again at ?Computing MAP estimate using 2772 samples...?

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESoutof QuasiNewtonEMA: 009: -log(p) = 7006.0 tol 0.000010

...

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESpass 2 through quasi-newton minimizat ion...

...

IFLAG= -1 LINE SEARCH FAILED. SEE DOCUMENTATION OF ROUTINE MCSRCH ERROR RETURN OF LINE SEARCH: INFO= 3 POS

SIBLE CAUSES: FUNCTION OR GRADIENT ARE INCORRECT OR INCORRECT TOLERANCESoutof QuasiNewtonEMA: 013: -log(p) = 838978.4 tol 0.000000

...

Thanks,

Wil

---

William Irwin | Brain Imaging Coordinator UCSF | Memory and Aging Center 350 Parnassus Avenue, Suite 905 San Francisco CA 94143-1207 wirwin at memory.ucsf.edu | memory.ucsf.edu p: 415.476.1680 | f: 415.476.1816