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Description of problem:
If SSLCryptoDevice config variable is set to some unkown value httpd segfaults.

# service httpd restart
Stopping httpd:                                            [FAILED]
Starting httpd: Syntax error on line 68 of /etc/httpd/conf.d/ssl.conf:
SSLCryptoDevice: Invalid argument; must be one of: 'builtin' (none), 'aesni' (Intel AES-NI engine (no-aesni)), 'dynamic' (Dynamic engine loading support)
/bin/bash: line 1: 18787 Segmentation fault      (core dumped) /usr/sbin/httpd
                                                           [FAILED]
Version-Release number of selected component (if applicable):
httpd-2.2.15-9.el6

How reproducible:
100%

Steps to Reproduce:
1. Set SSLCryptoDevice in /etc/httpd/conf.d/ssl.conf to some trash value
2. Restart httpd
  
Actual results:
Segfault

Expected results:
No Segfault, only error message

Thanks, fixed upstream.

http://svn.apache.org/viewvc?view=revision&revision=1157105

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2011-1630.html

This was committed upstream as http://svn.apache.org/viewvc?view=revision&revision=1157105 to trunk / 2.4.x.

However, it was not commited upstream to the 2.2 branch so this issue still exists in upstream 2.2.29.