Disabling the specific lines as you suggested worked i was able to compile 
it. 

Also i performed the grep 


oracle@serpa:[/opt/webtier/Middleware]#/usr/sfw/bin/ggrep -r 
HAVE_SYS_PRCTL_H *                          
Oracle_WT1/ohs/include/ap_config_auto.h:/* #undef HAVE_SYS_PRCTL_H */
Oracle_WT1/ohs/include/ap_config_auto.h:#define HAVE_SYS_PRCTL_H 1
oracle@serpa:[/opt/webtier/Middleware]#




On Friday, March 6, 2015 at 1:35:16 PM UTC+2, Graham Dumpleton wrote:
>
> Looks like it is Apache that might have the wrong definition for that 
> symbol.
>
> For example on MacOS X:
>
> $ grep HAVE_SYS_PRCTL_H /usr/include/apache2/*.h
> /usr/include/apache2/ap_config_auto.h:/* #undef HAVE_SYS_PRCTL_H */
>
> I suspect the header file is only meant to exist on Linux. So may not 
> relate to OS version.
>
> If you can find where the Apache header files are installed and grep for 
> that name and see whether has #define or whether is a comment out #undef, 
> would tell you whether that is the origin.
>
> Graham
>
> On 06/03/2015, at 10:30 PM, Graham Dumpleton <[email protected] 
> <javascript:>> wrote:
>
> If you are getting:
>
>     "src/server/mod_wsgi.c", line 25: cannot find include file: 
> <sys/prctl.h>
>
> there is something broken with your Apache installation, or maybe Python 
> installation.
>
> That would only be included if either Apache or Python said that header 
> file existed.
>
> #ifdef HAVE_SYS_PRCTL_H
> #include <sys/prctl.h>
> #endif
>
> What might be the issue is that either Apache or Python was originally 
> built on an older OS revision where that header file existed but your newer 
> system doesn't have it.
>
> I would suggest editing mod_wsgi.c file and change and disable the use of 
> those lines:
>
> #if 0
> #ifdef HAVE_SYS_PRCTL_H
> #include <sys/prctl.h>
> #endif
> #endif
>
> Graham
>
> On 06/03/2015, at 9:55 PM, [email protected] <javascript:> wrote:
>
> oracle@serpa:[/opt/media/mod_wsgi-4.4.9]#./configure 
> --with-apxs=/opt/webtier/Middleware/Oracle_WT1/ohs/bin/apxs 
> --with-python=/opt/webtier/python_64/bin/python
> apxs:Error: Invalid query string `LIBTOOL'
> checking for gcc... gcc
> checking whether the C compiler works... yes
> checking for C compiler default output file name... a.out
> checking for suffix of executables... 
> checking whether we are cross compiling... no
> checking for suffix of object files... o
> checking whether we are using the GNU C compiler... yes
> checking whether gcc accepts -g... yes
> checking for gcc option to accept ISO C89... none needed
> checking for prctl... no
> checking Apache version... 2.2.22
> configure: creating ./config.status
> config.status: creating Makefile
>  
> oracle@serpa:[/opt/media/mod_wsgi-4.4.9]#LD_RUN_PATH=/opt/webtier/python_64/lib
>  
> make
> /opt/webtier/Middleware/Oracle_WT1/ohs/bin/apxs -c 
> -I/opt/webtier/python_64/include/python2.6 -DNDEBUG -Wc,-g -Wc,-O2 
> src/server/mod_wsgi.c src/server/wsgi_*.c -L/opt/webtier/python_64/lib 
> -L/opt/webtier/python_64/lib/python2.6/config -lpython2.6 -lsocket -lnsl 
> -lrt -ldl -lm
> /opt/webtier/Middleware/Oracle_WT1/ohs/build/libtool --tag=CC 
> --mode=compile cc -O    -DNO_RC2 -DNO_RC5 -DNO_IDEA -DBSAFE -fPIC -m64  
> -DLINUX=260 -DMOD_SSL=206104 -DMOD_PERL -DUSE_PERL_SSI -I/include -DEAPI  
> -D_LARGEFILE64_SOURCE -DUSE_EXPAT -I../lib/expat-lite 
> -I/opt/webtier/Middleware/Oracle_WT1/ohs/include  
> -I/opt/webtier/Middleware/Oracle_WT1/ohs/include   
> -I/opt/webtier/Middleware/Oracle_WT1/ohs/include  -g -O2 
> -I/opt/webtier/python_64/include/python2.6 -DNDEBUG  -c -o 
> src/server/mod_wsgi.lo src/server/mod_wsgi.c && touch 
> src/server/mod_wsgi.slo
> mkdir src/server/.libs
>  cc -O -DNO_RC2 -DNO_RC5 -DNO_IDEA -DBSAFE -fPIC -m64 -DLINUX=260 
> -DMOD_SSL=206104 -DMOD_PERL -DUSE_PERL_SSI -I/include -DEAPI 
> -D_LARGEFILE64_SOURCE -DUSE_EXPAT -I../lib/expat-lite 
> -I/opt/webtier/Middleware/Oracle_WT1/ohs/include 
> -I/opt/webtier/Middleware/Oracle_WT1/ohs/include 
> -I/opt/webtier/Middleware/Oracle_WT1/ohs/include -g -O2 
> -I/opt/webtier/python_64/include/python2.6 -DNDEBUG -c 
> src/server/mod_wsgi.c  -KPIC -DPIC -o src/server/.libs/mod_wsgi.o
> "src/server/mod_wsgi.c", line 25: cannot find include file: <sys/prctl.h>
> "src/server/mod_wsgi.c", line 8357: warning: statement not reached
> "src/server/mod_wsgi.c", line 8540: warning: statement not reached
> "src/server/mod_wsgi.c", line 10364: warning: statement not reached
> cc: acomp failed for src/server/mod_wsgi.c
> apxs:Error: Command failed with rc=65536
> .
> *** Error code 1
> make: Fatal error: Command failed for target `src/server/mod_wsgi.la'
> oracle@serpa:[/opt/media/mod_wsgi-4.4.9]#
>
>
>
>
>
> On Friday, March 6, 2015 at 12:45:18 PM UTC+2, Graham Dumpleton wrote:
>>
>>
>> On 06/03/2015, at 9:20 PM, [email protected] wrote:
>>
>> Sorry Graham my mistake the mod_wsgi i am using is 3.2 which i had to 
>> compile myself, i downloaded the source code and did the compile. I am on a 
>> Solaris 10 and for web server i am using Oracle OHS (Oracle HTTP Server). 
>>
>> The problem is that i am having issues with compiling the latest version 
>> of mod_wsgi in my solaris. 
>>
>> Can you help me with that ?? 
>>
>>
>> Sure, what is the specific problem/error with the very latest mod_wsgi 
>> version?
>>
>> Graham
>>
>> On Friday, March 6, 2015 at 12:09:47 PM UTC+2, Graham Dumpleton wrote:
>>>
>>> Do you really mean 3.1.2, or perhaps 3.1 where some OS distribution is 
>>> tagging on a '-2' qualifier?
>>>
>>> Although there was a version 3.1, there never was a 3.1.2 as I only 
>>> started using 3 part version numbers with 4.1.0.
>>>
>>> If it is 3.1, which if it is Oracle Linux I wouldn't be surprised, then 
>>> it was released 4 1/2 years ago and is way out of date.
>>>
>>> Is there any chance at all you can upgrade to a recent version of 
>>> mod_wsgi by compiling from mod_wsgi source code yourself?
>>>
>>> In using such an old version of mod_wsgi I am not sure there is much I 
>>> can do to help you. If it is an issue which was since fixed, you wouldn't 
>>> have much choice but to upgrade anyway.
>>>
>>> Graham
>>>
>>> On 06/03/2015, at 2:02 AM, [email protected] wrote:
>>>
>>> Server version: Oracle-HTTP-Server/2.2.22 
>>>
>>> mod_wsgi: 3.1.2 
>>>
>>> Can this be the cause of the DB errors i am getting i.e. the process is 
>>> crashing and with it together the DB connection ???? 
>>>
>>> Regards,
>>> Alex
>>>
>>>
>>>
>>> On Thursday, March 5, 2015 at 12:46:23 PM UTC+2, Graham Dumpleton wrote:
>>>>
>>>> What version of mod_wsgi are you using?
>>>>
>>>> What patch level revision of Apache are you using?
>>>>
>>>> The crash of first daemon process instance but not subsequent ones 
>>>> sounds a bit like a bug I fixed not long back.
>>>>
>>>> I can't right now remember what the issue was and can't find any note 
>>>> about it in release notes for 4.4.X versions.
>>>>
>>>> Graham
>>>>
>>>> On 04/03/2015, at 10:47 PM, [email protected] wrote:
>>>>
>>>> Shouldn't  this cause a core dump ?? Because i can not find any in 
>>>> order to analyze it.... 
>>>>
>>>> On Wednesday, March 4, 2015 at 1:36:45 PM UTC+2, alexandros...@
>>>> gmail.com wrote:
>>>>>
>>>>> Yes i tried it and the same thing happens: 
>>>>>
>>>>> [Wed Mar 04 13:31:53 2015] [notice] child pid 10101 exit signal 
>>>>> Segmentation fault (11)
>>>>> [Wed Mar 04 13:31:54 2015] [debug] proxy_util.c(1818): proxy: grabbed 
>>>>> scoreboard slot 0 in child 10148 for worker proxy:reverse
>>>>> [Wed Mar 04 13:31:54 2015] [debug] proxy_util.c(1837): proxy: worker 
>>>>> proxy:reverse already initialized
>>>>> [Wed Mar 04 13:31:54 2015] [debug] proxy_util.c(1914): proxy: 
>>>>> initialized worker 0 in child 10148 for (*) min=0 max=25 smax=25
>>>>> [Wed Mar 04 13:31:54 2015] [info] mod_wsgi (pid=10148): Initializing 
>>>>> Python.
>>>>> [Wed Mar 04 13:31:54 2015] [info] mod_wsgi (pid=10148): Attach 
>>>>> interpreter ''.
>>>>>
>>>>> It crashes the first interpreter and its attaching a new one... 
>>>>>
>>>>> On Wednesday, March 4, 2015 at 12:42:32 PM UTC+2, Graham Dumpleton 
>>>>> wrote:
>>>>>>
>>>>>> Are you setting:
>>>>>>
>>>>>> WSGIApplicationGroup %{GLOBAL}
>>>>>>
>>>>>> directive.
>>>>>>
>>>>>>
>>>>>> http://code.google.com/p/modwsgi/wiki/ApplicationIssues#Python_Simplified_GIL_State_API
>>>>>>
>>>>>> That is often a good remedy for process crashes when using Python 
>>>>>> third party extensions modules which aren't implemented properly to work 
>>>>>> in 
>>>>>> sub interpreters.
>>>>>>
>>>>>> Graham
>>>>>>
>>>>>> On 04/03/2015, at 9:25 PM, [email protected] wrote:
>>>>>>
>>>>>> Also from the logs its seems that there are some  Segmentation faults
>>>>>>
>>>>>> mod_wsgi (pid=9760): Create interpreter 
>>>>>> ........
>>>>>>
>>>>>> child pid 9760 exit signal Segmentation fault (11)
>>>>>>
>>>>>> Is this normal ??? 
>>>>>>
>>>>>> On Monday, March 2, 2015 at 12:39:02 PM UTC+2, alexandros...@
>>>>>> gmail.com wrote:
>>>>>>>
>>>>>>> Hi Graham, 
>>>>>>>
>>>>>>> In my project i already have *DEBUG = True* which i think it 
>>>>>>> overwrites global settings. 
>>>>>>>
>>>>>>> Is DEBUG = True enough to force Django to log details of unhanded 
>>>>>>> exceptions?? Or should i do anything else? 
>>>>>>>
>>>>>>> I already have print outs of os.environ and i have checked that 
>>>>>>> ORACLE_HOME and TNS_ADMIN is set to the correct paths , i think that 
>>>>>>> those 
>>>>>>> are the only 2 variables needed for ORACLE... If i am wrong please 
>>>>>>> correct 
>>>>>>> me. 
>>>>>>>
>>>>>>> I do not know what else should i do in order to get to log all the 
>>>>>>> exceptions in the logs.... 
>>>>>>>
>>>>>>> But i think this is like the other case you help me solve with 
>>>>>>> "hashlib"... The true problem/exception was never logged, until you 
>>>>>>> told me 
>>>>>>> to try to import _hashlib instead of hashlib. THEN AND OLNY then the 
>>>>>>> problem was clear and i was able to fix it. I think that the same 
>>>>>>> circumstances apply here... Somehow i am not getting the real issue... 
>>>>>>>
>>>>>>> Regards,
>>>>>>> Alex
>>>>>>>
>>>>>>> On Friday, February 27, 2015 at 11:47:28 PM UTC+2, Graham Dumpleton 
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> If this is only the latter consequence, then have you got Django 
>>>>>>>> setup to send you details of unhanded exceptions in emails or 
>>>>>>>> otherwise log 
>>>>>>>> them. If you don't then Django will simply translate an error into a 
>>>>>>>> generic 500 response page and you will not see the error anywhere.
>>>>>>>>
>>>>>>>> If you are on a development system, you can alternatively enable 
>>>>>>>> temporarily in the Django settings file:
>>>>>>>>
>>>>>>>> DEBUG = True
>>>>>>>>
>>>>>>>> and if it was creating a 500 page then it will then include the 
>>>>>>>> exception details that caused it.
>>>>>>>>
>>>>>>>> BTW other possible problems with Oracle specifically are missing 
>>>>>>>> ORACLE_??? environment variables set in environment of Apache.
>>>>>>>>
>>>>>>>> If you add debug statements in WSGI script file to print out 
>>>>>>>> contents of os.environ from 'os' module, dod you see all the ORACLE_?? 
>>>>>>>> environment variables you expect to see that might be set in the shell 
>>>>>>>> of 
>>>>>>>> your user environment.
>>>>>>>>
>>>>>>>> Graham
>>>>>>>>
>>>>>>>> On 28/02/2015, at 8:40 AM, [email protected] wrote:
>>>>>>>>
>>>>>>>> Hi Graham,
>>>>>>>>
>>>>>>>> Can you elaborate more on this... Based on the Django project i 
>>>>>>>> have created, in the settings for the Oracle DB i have provided the 
>>>>>>>> user 
>>>>>>>> (db schema) the application should use to connect to the db. 
>>>>>>>>
>>>>>>>> I have not changed anything since i migrated the project to the new 
>>>>>>>> infrastructure and the project was working fine before. I am on the 
>>>>>>>> same 
>>>>>>>> machine i just installed everything again basically..
>>>>>>>>
>>>>>>>> I know that somewhere there is an exception occurring, but the 
>>>>>>>> problem is that it is never caught and printed in the logs.... 
>>>>>>>>
>>>>>>>> As you can see in the logs the only errors are when it tries to 
>>>>>>>> close the connection and most probably never finds one.. either 
>>>>>>>> because it 
>>>>>>>> was never created or it is closed before everything else is executed. 
>>>>>>>>
>>>>>>>> I want to find a way to debug this ... Is there a way to trace each 
>>>>>>>> call and every step so i can place some sort of print to see where the 
>>>>>>>> code 
>>>>>>>> is not working ... Because i do not know any other way to fix this. 
>>>>>>>>
>>>>>>>> I another problem i had,  you were the one that suggested  
>>>>>>>> something that relieved the actual problem and i was able to fix it, 
>>>>>>>> because before that the only errors in the logs i was seeing were not 
>>>>>>>> relevant to the problem. 
>>>>>>>>
>>>>>>>> Thanks
>>>>>>>>
>>>>>>>> On Thursday, February 26, 2015 at 11:42:26 AM UTC+2, Graham 
>>>>>>>> Dumpleton wrote:
>>>>>>>>>
>>>>>>>>> If Oracle is providing access based on the identity of the user 
>>>>>>>>> connecting though local UNIX socket connection to the database, it 
>>>>>>>>> could be 
>>>>>>>>> failing because your application will be running as the Apache user 
>>>>>>>>> and 
>>>>>>>>> maybe you haven't configured Oracle to allow that user to connect.
>>>>>>>>>
>>>>>>>>> Graham
>>>>>>>>>
>>>>>>>>> On 25/02/2015, at 10:09 PM, [email protected] wrote:
>>>>>>>>>
>>>>>>>>> Hi, 
>>>>>>>>>
>>>>>>>>> I migrated my project to a new infrastructure but i kept the same 
>>>>>>>>> versions Apache 2.2 + mod_wsgi + python 2.6.1 + Django 1.2.1 + 
>>>>>>>>> ....... 
>>>>>>>>>
>>>>>>>>> I am trying to run my project or even access the admin console of 
>>>>>>>>> Django /admin and i can not.
>>>>>>>>>
>>>>>>>>> I tried to connect directly from the Oracle Client (sqlplus) and i 
>>>>>>>>> can, i created a simple python script that uses cx_oracle and i am 
>>>>>>>>> able to 
>>>>>>>>> connect to the database without any problems, i have tested "python 
>>>>>>>>> manage.py dbshell" and it connects. I also used "python manage.py 
>>>>>>>>> runserver" and by navigating to http://127.0.0.1:8000/admin i was 
>>>>>>>>> able to access the console without any errors,  but when i try using 
>>>>>>>>> apache 
>>>>>>>>> + mod_wsgi i get the following error:   
>>>>>>>>>
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] mod_wsgi 
>>>>>>>>> (pid=27565): Exception occurred processing WSGI script 
>>>>>>>>> '/opt/wgt_proxy/wgtproxyProj/
>>>>>>>>> wgtproxy/apache/django.wsgi'.
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] Traceback 
>>>>>>>>> (most recent call last):
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>>>>> "/opt/wgt_proxy/wgtproxyProj/wgtproxy/apache/django.wsgi", line 50, 
>>>>>>>>> in 
>>>>>>>>> __call__
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     return 
>>>>>>>>> self.__application(environ, _start_response)
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/core/handlers/wsgi.py",
>>>>>>>>>  
>>>>>>>>> line 248, in __call__
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     
>>>>>>>>> signals.request_finished.send(sender=self.__class__)
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/dispatch/dispatcher.py",
>>>>>>>>>  
>>>>>>>>> line 162, in send
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     
>>>>>>>>> response = receiver(signal=self, sender=sender, **named)
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/db/__init__.py",
>>>>>>>>>  
>>>>>>>>> line 82, in close_connection
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     
>>>>>>>>> conn.close()
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]   File 
>>>>>>>>> "/opt/webtier/python_64/lib/python2.6/site-packages/django/db/backends/__init__.py",
>>>>>>>>>  
>>>>>>>>> line 70, in close
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx]     
>>>>>>>>> self.connection.close()
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] 
>>>>>>>>> OperationalError: ORA-03114: not connected to ORACLE
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] 
>>>>>>>>> [Fri Feb 20 17:40:51 2015] [error] [client xx.xx.xx.xx] Request 
>>>>>>>>> Failed for : /wgtproxy/admin/, Resp Code : [500]
>>>>>>>>>
>>>>>>>>> Can anyone help me solve my issue?
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>>
>>>>>>>>> -- 
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>>>>>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>> -- 
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>>>>>>>> send an email to [email protected].
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>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>> -- 
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>>>>>>
>>>>>>
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>>>>
>>>>
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