Re: grdmath problems

Paul, Marcelo and others:


Good day.

*First, -V:*

Unfortunately, -V does not appear to produce valuable output....

*osop@osop-displays2:/opt$  /usr/src/gmt-4.5.11/bin/grdmath 1.grd DUP DUP
10 LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV
-0.05 MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10
DIV -0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30
SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686
2.grd DIV EXCH POW MUL = 3.grd -V*
-bash: /usr/src/gmt-4.5.11/bin/grdmath 1.grd: No such file or directory
*osop@osop-displays2:/opt$ /usr/src/gmt-4.5.11/bin/grdmath -V 1.grd DUP DUP
10 LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV
-0.05 MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10
DIV -0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30
SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686
2.grd DIV EXCH POW MUL = 3.grd *
grdmath: GMT SYNTAX ERROR: 1.grd is not a number, operator or file name

Maybe I am placing the flag in the wrong place...

Without the flag I get the buffer overflow (as you already know):
*osop@osop-displays2:/opt$ /usr/src/gmt-4.5.11/bin/grdmath 1.grd DUP DUP 10
LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV -0.05
MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10 DIV
-0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30 SUB 10
DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686 2.grd
DIV EXCH POW MUL = 3.grd*
*** buffer overflow detected ***: /usr/src/gmt-4.5.11/bin/grdmath terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f8759adb807]
/lib/x86_64-linux-gnu/libc.so.6(+0x109700)[0x7f8759ada700]
/lib/x86_64-linux-gnu/libc.so.6(+0x1085d3)[0x7f8759ad95d3]
/usr/src/gmt-4.5.11/bin/grdmath[0x41e286]
/usr/src/gmt-4.5.11/bin/grdmath[0x40cd4a]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7f87599f276d]
/usr/src/gmt-4.5.11/bin/grdmath[0x40f409]
======= Memory map: ========
00400000-004c9000 r-xp 00000000 08:01 9834075
 /usr/src/gmt-4.5.11/bin/grdmath
006c8000-006ca000 r--p 000c8000 08:01 9834075
 /usr/src/gmt-4.5.11/bin/grdmath
006ca000-006ee000 rw-p 000ca000 08:01 9834075
 /usr/src/gmt-4.5.11/bin/grdmath
006ee000-0073a000 rw-p 00000000 00:00 0
01724000-01796000 rw-p 00000000 00:00 0
 [heap]
7f874c3e5000-7f874c3ee000 r-xp 00000000 08:01 11010866
/lib/x86_64-linux-gnu/libcrypt-2.15.so
7f874c3ee000-7f874c5ee000 ---p 00009000 08:01 11010866
/lib/x86_64-linux-gnu/libcrypt-2.15.so
7f874c5ee000-7f874c5ef000 r--p 00009000 08:01 11010866
/lib/x86_64-linux-gnu/libcrypt-2.15.so
7f874c5ef000-7f874c5f0000 rw-p 0000a000 08:01 11010866
/lib/x86_64-linux-gnu/libcrypt-2.15.so
7f874c5f0000-7f874c61e000 rw-p 00000000 00:00 0
7f874c61e000-7f874c663000 r-xp 00000000 08:01 5773595
 /usr/lib/x86_64-linux-gnu/libhx509.so.5.0.0
7f874c663000-7f874c863000 ---p 00045000 08:01 5773595
 /usr/lib/x86_64-linux-gnu/libhx509.so.5.0.0
7f874c863000-7f874c865000 r--p 00045000 08:01 5773595
 /usr/lib/x86_64-linux-gnu/libhx509.so.5.0.0
7f874c865000-7f874c867000 rw-p 00047000 08:01 5773595
 /usr/lib/x86_64-linux-gnu/libhx509.so.5.0.0
7f874c867000-7f874c868000 rw-p 00000000 00:00 0
7f874c868000-7f874c876000 r-xp 00000000 08:01 5773589
 /usr/lib/x86_64-linux-gnu/libheimbase.so.1.0.0
7f874c876000-7f874ca75000 ---p 0000e000 08:01 5773589
 /usr/lib/x86_64-linux-gnu/libheimbase.so.1.0.0
7f874ca75000-7f874ca76000 r--p 0000d000 08:01 5773589
 /usr/lib/x86_64-linux-gnu/libheimbase.so.1.0.0
7f874ca76000-7f874ca77000 rw-p 0000e000 08:01 5773589
 /usr/lib/x86_64-linux-gnu/libheimbase.so.1.0.0
7f874ca77000-7f874ca9f000 r-xp 00000000 08:01 5773592
 /usr/lib/x86_64-linux-gnu/libwind.so.0.0.0
7f874ca9f000-7f874cc9e000 ---p 00028000 08:01 5773592
 /usr/lib/x86_64-linux-gnu/libwind.so.0.0.0
7f874cc9e000-7f874cc9f000 r--p 00027000 08:01 5773592
 /usr/lib/x86_64-linux-gnu/libwind.so.0.0.0
7f874cc9f000-7f874cca0000 rw-p 00028000 08:01 5773592
 /usr/lib/x86_64-linux-gnu/libwind.so.0.0.0
7f874cca0000-7f874ccd5000 r-xp 00000000 08:01 5776318
 /usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7f874ccd5000-7f874ced4000 ---p 00035000 08:01 5776318
 /usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7f874ced4000-7f874ced5000 r--p 00034000 08:01 5776318
 /usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7f874ced5000-7f874ced6000 rw-p 00035000 08:01 5776318
 /usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7f874ced6000-7f874ceea000 r-xp 00000000 08:01 5773571
 /usr/lib/x86_64-linux-gnu/libroken.so.18.1.0
7f874ceea000-7f874d0e9000 ---p 00014000 08:01 5773571
 /usr/lib/x86_64-linux-gnu/libroken.so.18.1.0
7f874d0e9000-7f874d0ea000 r--p 00013000 08:01 5773571
 /usr/lib/x86_64-linux-gnu/libroken.so.18.1.0
7f874d0ea000-7f874d0eb000 rw-p 00014000 08:01 5773571
 /usr/lib/x86_64-linux-gnu/libroken.so.18.1.0
7f874d0eb000-7f874d11c000 r-xp 00000000 08:01 5773586
 /usr/lib/x86_64-linux-gnu/libhcrypto.so.4.1.0
7f874d11c000-7f874d31c000 ---p 00031000 08:01 5773586
 /usr/lib/x86_64-linux-gnu/libhcrypto.so.4.1.0
7f874d31c000-7f874d31d000 r--p 00031000 08:01 5773586
 /usr/lib/x86_64-linux-gnu/libhcrypto.so.4.1.0
7f874d31d000-7f874d31e000 rw-p 00032000 08:01 5773586
 /usr/lib/x86_64-linux-gnu/libhcrypto.so.4.1.0
7f874d31e000-7f874d31f000 rw-p 00000000 00:00 0
7f874d31f000-7f874d3ba000 r-xp 00000000 08:01 5773574
 /usr/lib/x86_64-linux-gnu/libasn1.so.8.0.0
7f874d3ba000-7f874d5b9000 ---p 0009b000 08:01 5773574
 /usr/lib/x86_64-linux-gnu/libasn1.so.8.0.0
7f874d5b9000-7f874d5bb000 r--p 0009a000 08:01 5773574
 /usr/lib/x86_64-linux-gnu/libasn1.so.8.0.0
7f874d5bb000-7f874d5bf000 rw-p 0009c000 08:01 5773574
 /usr/lib/x86_64-linux-gnu/libasn1.so.8.0.0
7f874d5bf000-7f874d63f000 r-xp 00000000 08:01 5773598
 /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0
7f874d63f000-7f874d83f000 ---p 00080000 08:01 5773598
 /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0
7f874d83f000-7f874d841000 r--p 00080000 08:01 5773598
 /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0
7f874d841000-7f874d845000 rw-p 00082000 08:01 5773598
 /usr/lib/x86_64-linux-gnu/libkrb5.so.26.0.0
7f874d845000-7f874d84b000 r-xp 00000000 08:01 5773601
 /usr/lib/x86_64-linux-gnu/libheimntlm.so.0.1.0
7f874d84b000-7f874da4a000 ---p 00006000 08:01 5773601
 /usr/lib/x86_64-linux-gnu/libheimntlm.so.0.1.0
7f874da4a000-7f874da4b000 r--p 00005000 08:01 5773601
 /usr/lib/x86_64-linux-gnu/libheimntlm.so.0.1.0
7f874da4b000-7f874da4c000 rw-p 00006000 08:01 5773601
 /usr/lib/x86_64-linux-gnu/libheimntlm.so.0.1.0
7f874da4c000-7f874da4f000 r-xp 00000000 08:01 11010397
/lib/x86_64-linux-gnu/libkeyutils.so.1.4
7f874da4f000-7f874dc4e000 ---p 00003000 08:01 11010397
/lib/x86_64-linux-gnu/libkeyutils.so.1.4
7f874dc4e000-7f874dc4f000 r--p 00002000 08:01 11010397
/lib/x86_64-linux-gnu/libkeyutils.so.1.4
7f874dc4f000-7f874dc50000 rw-p 00003000 08:01 11010397
/lib/x86_64-linux-gnu/libkeyutils.so.1.4
7f874dc50000-7f874edbf000 r-xp 00000000 08:01 5776023
 /usr/lib/libicudata.so.48.1.1
7f874edbf000-7f874efbe000 ---p 0116f000 08:01 5776023
 /usr/lib/libicudata.so.48.1.1
7f874efbe000-7f874efbf000 r--p 0116e000 08:01 5776023
 /usr/lib/libicudata.so.48.1.1
7f874efbf000-7f874efc0000 rw-p 0116f000 08:01 5776023
 /usr/lib/libicudata.so.48.1.1
7f874efc0000-7f874f0d4000 r-xp 00000000 08:01 5782149
 /usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7f874f0d4000-7f874f2d4000 ---p 00114000 08:01 5782149
 /usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7f874f2d4000-7f874f2d5000 r--p 00114000 08:01 5782149
 /usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7f874f2d5000-7f874f2d7000 rw-p 00115000 08:01 5782149
 /usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7f874f2d7000-7f874f2da000 r-xp 00000000 08:01 11010342
/lib/x86_64-linux-gnu/libgpg-error.so.0.8.0
7f874f2da000-7f874f4d9000 ---p 00003000 08:01 11010342
/lib/x86_64-linux-gnu/libgpg-error.so.0.8.0Aborted (core dumped)


*Second, Debugging:*
I created a special output file to start debugging with strace. You can
find this file attached (grdmath.strace.out). This was generated by:
*strace -o ~/grdmath.strace.out -t -ff /usr/src/gmt-4.5.11/bin/grdmath
1.grd DUP DUP 10 LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10
SUB 10 DIV -0.05 MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL
EXCH 20 SUB 10 DIV -0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE
MUL EXCH 30 SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD
ADD ADD 686 2.grd DIV EXCH POW MUL = 3.grd*


Let me know if you need any additional information.



Kind Regards,


*Branden Christensen*
The Seismo Guys Blog: http://www.osop.com.pa/blog/the-seismo-guys/
Take a Virtual Tour: http://www.osop.com.pa/tour
Sign up for the OSOP mailing list:
http://www.osop.com.pa/about/osop-mailing-list/


On Sat, Jan 25, 2014 at 12:49 AM, Paul Wessel <[email protected]> wrote:

> I've running the tests in ubuntu 13.04 and no problems.  Given the various
> strange GMT errors we have seen over the last years, always involving
> ubuntu, especially their own package builds, makes me wonder if there is
> something very odd with that platform.  Since I cannot even reproduce the
> problem on ubuntu (Not to mention other os) I am afraid the original poster
> will need to run debug on that command to see what is going on.   For
> starters, could you add -V so you can see how far it gets (the order of the
> operators) before it dies.  Perhaps that can give a clue.  Otherwise build
> with debug flags and  what line it dies in.
>
> -p
>
> On Jan 24, 2014, at 9:48 AM, Paul Wessel <[email protected]> wrote:
>
> Cannot reproduce on OSX.  Are you able to run this in any debugger to see
> what exactly is happening to give us a clue?
> -p
>
> On Jan 24, 2014, at 2:03 AM, Marcelo Banik <[email protected]>
> wrote:
>
> I tested in an ubuntu 13.10.
>
>
> Following command pass:
>
> ~/strange_behavior$ /usr/local/GMT4.5.11/bin/grdmath 1.grd DUP DUP 10 LE
> 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV -0.05 MUL
> 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10 DIV -0.07
> MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30 SUB 10 DIV
> -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686 2.grd DIV
> EXCH POW MUL = 3.grd
>
>
> But if I did:
>
> ~/strange_behavior$ ln -s /usr/local/GMT4.5.11/bin .
>
> ~/strange_behavior$ bin/grdmath 1.grd DUP DUP 10 LE 0.65 MUL EXCH DUP DUP
> DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV -0.05 MUL 0.65 ADD MUL EXCH DUP
> DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10 DIV -0.07 MUL 0.60 ADD MUL EXCH
> DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30 SUB 10 DIV -0.08 MUL 0.53 ADD MUL
> EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686 2.grd DIV EXCH POW MUL = 3.grd
>
> *** buffer overflow detected ***: bin/grdmath terminated
>
>
> And if I use full path to grdmath 4.5.12_r10185 [64-bit], it fails:
>
> /opt/gmt/4.5.12/bin/grdmath 1.grd DUP DUP 10 LE 0.65 MUL EXCH DUP DUP DUP
> 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV -0.05 MUL 0.65 ADD MUL EXCH DUP DUP
> DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10 DIV -0.07 MUL 0.60 ADD MUL EXCH DUP
> DUP DUP 30 GT EXCH 40 LE MUL EXCH 30 SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH
> 40 GT 0.45 MUL ADD ADD ADD ADD 686 2.grd DIV EXCH POW MUL = 3.grd
>
> *** buffer overflow detected ***: /opt/gmt/4.5.12/bin/grdmath terminated
>
>
> In both cases, it succeed if I use ./1.grd instead of 1.grd.
>
>
> Could someone more reproduce these results?
>
>
> Marcelo
>
>
>
>
> On Thu, Jan 23, 2014 at 9:12 PM, Branden Christensen <
> [email protected]> wrote:
>
>> Paul:
>>
>>
>> Good evening.
>>
>> I originally had the buffer overflow problem when I installed GMT on
>> Ubuntu 12.04 using "sudo apt-get install gmt". You recommended I install
>> 4.5.11 from sources which I did using the attached script
>> "siposg4511-1.sh". But the problems persists.
>>
>> In the end I hope to be able to execute grdmath by calling the full path.
>>
>>
>>
>> *Branden Christensen*
>> The Seismo Guys Blog: http://www.osop.com.pa/blog/the-seismo-guys/
>> Take a Virtual Tour: http://www.osop.com.pa/tour
>> Sign up for the OSOP mailing list:
>> http://www.osop.com.pa/about/osop-mailing-list/
>>
>>
>> On Wed, Jan 22, 2014 at 7:06 PM, Paul Wessel <[email protected]> wrote:
>>
>>> Hi Brandan-
>>>
>>> I think I forgot how this started.  Did you build GMT yourself or
>>> installed via ubuntu package manager? We have had lots of issues with the
>>> ubuntu-built GMT release but people who build it themselves have no issues.
>>>  I know a ticket was opened with Ubuntu so maybe in 4 years it will be
>>> addressed...  We suspect they used some unhealthy compiler flag but we do
>>> not know.
>>> -p
>>>
>>> On Jan 22, 2014, at 9:43 AM, Branden Christensen <
>>> [email protected]> wrote:
>>>
>>> Paul:
>>>
>>>
>>> If you guys want access to a server running 12.04 let me know.
>>>
>>>
>>> Kind Regards,
>>>
>>>
>>> *Branden Christensen*
>>> The Seismo Guys Blog: http://www.osop.com.pa/blog/the-seismo-guys/
>>> Take a Virtual Tour: http://www.osop.com.pa/tour
>>> Sign up for the OSOP mailing list:
>>> http://www.osop.com.pa/about/osop-mailing-list/
>>>
>>>
>>> On Wed, Jan 22, 2014 at 7:31 PM, Paul Wessel <[email protected]> wrote:
>>>
>>>> No, this should be good - I just need to reproduce it in Ubuntu, or
>>>> have some of our other guys try it as well (Marcelo? Eduardo?)
>>>>
>>>> -p
>>>>
>>>> On Jan 22, 2014, at 9:16 AM, Branden Christensen <
>>>> [email protected]> wrote:
>>>>
>>>> Paul:
>>>>
>>>>
>>>> I get this:
>>>> osop@osop-displays2:~$ /usr/src/gmt-4.5.11/bin/grdmath -R0/10/0/10 -I1
>>>> X = 1.grd
>>>> osop@osop-displays2:~$ /usr/src/gmt-4.5.11/bin/grdmath -R0/10/0/10 -I1
>>>> X = 2.grd
>>>> osop@osop-displays2:~$ /usr/src/gmt-4.5.11/bin/grdmath 1.grd DUP DUP
>>>> 10 LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV
>>>> -0.05 MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10
>>>> DIV -0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30
>>>> SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686
>>>> 2.grd DIV EXCH POW MUL = 3.grd
>>>> *** buffer overflow detected ***: /usr/src/gmt-4.5.11/bin/grdmath
>>>> terminated
>>>>
>>>> So will you still need the original files if these dummy files produce
>>>> the same error? Please let me know!
>>>>
>>>>
>>>> Kind Regards,
>>>>
>>>>
>>>> *Branden Christensen*
>>>> The Seismo Guys Blog: http://www.osop.com.pa/blog/the-seismo-guys/
>>>> Take a Virtual Tour: http://www.osop.com.pa/tour
>>>> Sign up for the OSOP mailing list:
>>>> http://www.osop.com.pa/about/osop-mailing-list/
>>>>
>>>>
>>>> On Wed, Jan 22, 2014 at 7:05 PM, Paul Wessel <[email protected]>
>>>> wrote:
>>>>
>>>>> Hi Brandan-
>>>>>
>>>>> Even if the input grids dont matter I will need to create dummy ones
>>>>> with the right dimensions since grdmath is reading them to detect -R -I.
>>>>> If I just try
>>>>>
>>>>> grdmath -R0/10/0/10 -I1 X = 1.grd
>>>>> grdmath -R0/10/0/10 -I1 X = 2.grd
>>>>> grdmath 1.grd DUP DUP 10 LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE
>>>>> MUL EXCH 10 SUB 10 DIV -0.05 MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH
>>>>> 30 LE MUL EXCH 20 SUB 10 DIV -0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT
>>>>> EXCH 40 LE MUL EXCH 30 SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45
>>>>> MUL ADD ADD ADD ADD 686 2.grd DIV EXCH POW MUL = 3.grd
>>>>>
>>>>> I get no errors.  Let me know if the above crashes for you.  I will
>>>>> then fire up Ubuntu in parallels and see what happens there.
>>>>> -p
>>>>>
>>>>> On Jan 22, 2014, at 8:51 AM, Branden Christensen <
>>>>> [email protected]> wrote:
>>>>>
>>>>> > Paul:
>>>>> >
>>>>> >
>>>>> > Buenas tardes.
>>>>> >
>>>>> > I would like to take up this issue again.
>>>>> >
>>>>> > The buffer overflow is caused by grdmath on a 64-bit 12.04 LTS
>>>>> Ubuntu machine running GMT 4.5.11.
>>>>> >
>>>>> > Here is the complete command and resulting error:
>>>>> >
>>>>> > /usr/src/gmt-4.5.11/bin/grdmath
>>>>> /opt/shakemap2/bin/../data/9583161/richter/pgv_rock.grd DUP DUP 10 LE 0.65
>>>>> MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10 DIV -0.05 MUL 0.65
>>>>> ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20 SUB 10 DIV -0.07 MUL
>>>>> 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL EXCH 30 SUB 10 DIV -0.08
>>>>> MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD ADD 686
>>>>> /opt/shakemap2/bin/../data/9583161/output/UFVS74PC0J.grd DIV EXCH POW MUL =
>>>>> /opt/shakemap2/bin/../data/9583161/output/pgv.grd
>>>>> > *** buffer overflow detected ***: /usr/src/gmt-4.5.11/bin/grdmath
>>>>> terminated
>>>>> >
>>>>> > The input files do not matter. I created a new directory "tmp" and
>>>>> touched 1.grd, 2.grd and 3.grd. Then:
>>>>> > osop@osop-displays2:~/tmp$ /usr/src/gmt-4.5.11/bin/grdmath 1.grd
>>>>> DUP DUP 10 LE 0.65 MUL EXCH DUP DUP DUP 10 GT EXCH 20 LE MUL EXCH 10 SUB 10
>>>>> DIV -0.05 MUL 0.65 ADD MUL EXCH DUP DUP DUP 20 GT EXCH 30 LE MUL EXCH 20
>>>>> SUB 10 DIV -0.07 MUL 0.60 ADD MUL EXCH DUP DUP DUP 30 GT EXCH 40 LE MUL
>>>>> EXCH 30 SUB 10 DIV -0.08 MUL 0.53 ADD MUL EXCH 40 GT 0.45 MUL ADD ADD ADD
>>>>> ADD 686 2.grd DIV EXCH POW MUL = 3.grd*** buffer overflow detected ***:
>>>>> /usr/src/gmt-4.5.11/bin/grdmath terminated
>>>>> >
>>>>> >
>>>>> > Thank you for your expertise.
>>>>> >
>>>>> >
>>>>> > Kind Regards from Panama,
>>>>> >
>>>>> >
>>>>> > Branden Christensen
>>>>> > The Seismo Guys Blog: http://www.osop.com.pa/blog/the-seismo-guys/
>>>>> > Take a Virtual Tour: http://www.osop.com.pa/tour
>>>>> > Sign up for the OSOP mailing list:
>>>>> http://www.osop.com.pa/about/osop-mailing-list/
>>>>> >
>>>>> >
>>>>> > On Fri, Nov 29, 2013 at 9:32 AM, Paul Wessel <[email protected]>
>>>>> wrote:
>>>>> > Brendan-
>>>>> >
>>>>> > It would be helpful if you could save the files used to run the
>>>>> grdmath command below which seems to be the first that crashes.  However,
>>>>> that is clearly not the full grdmath command since there is no -R -I or
>>>>> gridfile on the input side. If I am to be of any help I will need an actual
>>>>> grdmath command line that crashes and all the input files that it requires
>>>>> so I can try to recreate the situation here.
>>>>> >
>>>>> > Cheers,
>>>>> > -p
>>>>> >
>>>>> >
>>>>> >
>>>>> > On Nov 28, 2013, at 5:54 PM, Branden Christensen <
>>>>> [email protected]> wrote:
>>>>> >
>>>>> >> grdmath: (/opt/shakemap2/bin/../data/9583161/output/hwxDhIWuGY.xy)
>>>>> PDIST 27.47 HYPOT = /opt/shakemap2/bin/../data/9583161/output/D7FwNIcwDT.grd
>>>>> >> *** buffer overflow detected ***: /usr/lib/gmt/bin/grdmath
>>>>> terminated
>>>>> >
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