Gwan, failed to map segment

Question

I am having trouble with Gwan, I have used is successfully without hiccup on several machines but having trouble with my current machine CentOS 6.3 64bit Final, gwan version 3.12.26, glibc version 2.12 (stable) from gwan.

Whenever I try and start gwan ./gwan

It returns back with

Linking loan.c: failed to map segment from shared object: Operation not permitted

I have full root access, have made sure that all .so shared files are executable, and ensured that SELinux was OFF.

Anything you all can shed some light on would be great

That's most probably an access rights issue for temporary files. If /tmp is mounted with the noexec option then you will have to define a $TMPDIR environment variable with more permissive rights, see the G-WAN FAQ: http://gwan.ch/faq#error8246 — Gil, Jan 09 '13 at 10:38

Richard Heath · Answer 1 · 2013-01-03T15:27:49.317

0

There are stability issues on version 3.12.26 due to GLIBC wrappers and direct system calls. The issues are different on different OS/GLIBC that's why it's working on some machines and not working on others.

I will suggest to use 3.3 (If you have it) for now until version 4 is released.

edited Jan 03 '13 at 15:27

answered Jan 02 '13 at 15:31

Richard Heath

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3
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Great answer Richard - We were so dismayed with GLIBC's failure to benefit from G-WAN's wrappers aimed at patching its flaws that we completely removed G-WAN's dependency on GLIBC by implementing the remaining syscalls and the few needed libc functions. As a result, **G-WAN will now be PORTABLE on all Linux releases since 2003** in addition to be even smaller and faster. – Gil Jan 03 '13 at 15:46
I downloaded the 3.3 version but the same problem as above persists, still have root access and SELinux off, and have an updated version of GLIBC – John-Alan Jan 06 '13 at 12:25
If **/tmp** is mounted with the **noexec** option then you will have to define a $TMPDIR environment variable with more permissive rights, see the G-WAN FAQ: http://gwan.ch/faq#error8246 – Gil Jan 09 '13 at 10:37

score -2 · Answer 2 · answered Jan 03 '13 at 07:31

-2

Richard Heath, give the link to download 3.3 version! Why all advices about G-WAN so uninformative? It's all like bla bla bla. I explore the whole gwan.com website. Only link to download latest version!

answered Jan 03 '13 at 07:31

user1940518

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I got copies of V3.3 32/64 bit. I can send it to you if you say please. – Richard Heath Jan 03 '13 at 15:30
Richard gave you the technical answer to your technical question. That's informative and pretending the contrary *is* disinformation. – Gil Jan 03 '13 at 15:42
Richard, it would be perfect if you can upload it anywhere. – user1940518 Jan 03 '13 at 19:16
@user1940518 I will add it on my site tonight. – Richard Heath Jan 04 '13 at 15:58
@Gil Tell me if I am not allowed to do it. I will take the links down. – Richard Heath Jan 04 '13 at 16:00
G-WAN is a *freeware*, so you can distribute it from any site without asking the permission. G-WAN v4 will be so much better than people will no longer want to use v3, but hey, that's the purpose of new releases =) – Gil Jan 05 '13 at 17:26
@user1940518 here is the link for 3.3.28 download http://www.mnd22.com/blog/g-wan_version_3.3.28_download – Richard Heath Jan 06 '13 at 03:50
Well ehm, scared. I dont see PHP supported here o_O – user1940518 Jan 06 '13 at 21:10
PHP is not natively supported on version 3.3 – Richard Heath Jan 06 '13 at 23:37
Yeah, i understand. I'll wait for v4 because most of my current apps is on PHP, unfortunely. – user1940518 Jan 07 '13 at 19:49

Gwan, failed to map segment

2 Answers2