[users@httpd] httpd core file truncated

[Zippy Zeppoli <zi...@gmail.com>]

I am trying to read a core file from http/php.
I have set the ulimit to unlimited for the apache user in limits.conf, I
have also added ulimit -c unlimited to the user's .bashrc.

For some reason, my core files still say they are truncated. I'm not sure
why. I have debug symbols for httpd and freetds (but not php).

Here is the error:

BFD: Warning: /tmp/core.10242 is truncated: expected core file size >=
576610304, found: 11689984.
BFD: Warning: /tmp/core.10242 is truncated: expected core file size >=
576610304, found: 11689984.[New Thread 10242][New Thread 10753]Core
was generated by `/usr/sbin/httpd'.
Program terminated with signal 11, Segmentation fault.
#0  0x00002aaaac7f8b60 in ?? ()
"/tmp/core.10242" is a core file.
Please specify an executable to debug.

any help is appreciated.

Re: [users@httpd] httpd core file truncated

[Igor Galić <i....@brainsware.org>]

----- Original Message -----
> I am trying to read a core file from http/php.
> I have set the ulimit to unlimited for the apache user in
> limits.conf,

How, exactly, did you do this?

Note that limits.conf is a PAM facility. If your httpd is not
started by a program that respects pam_limits.so then it won't
pick up these limits.

If you're starting under upstart, you can impose limits via:

limit core unlimited unlimited

I suppose systemd has similar facilities.

> I have also added ulimit -c unlimited to the user's
> .bashrc.

I don't suppose the user's bashrc will be actually picked up:
apachectl (if used) is a POSIX shell script.

> For some reason, my core files still say they are truncated. I'm not
> sure why. I have debug symbols for httpd and freetds (but not php).
> 
> Here is the error:
> BFD : Warning : /tmp/ core . 10242 is truncated : expected core file
> size >= 576610304 , found : 11689984. BFD : Warning : /tmp/ core .
> 10242 is truncated : expected core file size >= 576610304 , found :
> 11689984. [ New Thread 10242 ] [ New Thread 10753 ] Core was
> generated by `/usr/sbin/httpd'.
> Program terminated with signal 11, Segmentation fault.
> #0  0x00002aaaac7f8b60 in ?? ()
> "/tmp/core.10242" is a core file.
> Please specify an executable to debug.
> 
> any help is appreciated.


If your core_pattern is a pipe, please see this bug:
https://bugzilla.redhat.com/show_bug.cgi?id=759213


So long,

i
-- 
Igor Galić

Tel: +43 (0) 664 886 22 883
Mail: i.galic@brainsware.org
URL: http://brainsware.org/
GPG: 6880 4155 74BD FD7C B515  2EA5 4B1D 9E08 A097 C9AE

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