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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 13343] New: - Apache2 dies if signal HUP is sent to master process a second time
Date Sun, 06 Oct 2002 07:40:32 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=13343

Apache2 dies if signal HUP is sent to master process a second time

           Summary: Apache2 dies if signal HUP is sent to master process a
                    second time
           Product: Apache httpd-2.0
           Version: HEAD
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Major
          Priority: Other
         Component: Core
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: pb@bieringer.de


Running apache2 on Red Hat Linux 7.2 with kernel 2.4.18-5 (extended with 
grsecurity) with model "perchild" configuration will die, if signal HUP is 
sent to master process (pid from pid file) twice after a short delay:

First HUP sent:
[Sun Oct 06 09:34:13 2002] [notice] SIGHUP received.  Attempting to restart
[Sun Oct 06 09:34:13 2002] [notice] Apache/2.0.43 (Unix) configured -- 
resuming normal operations
[Sun Oct 06 09:34:13 2002] [notice] child pid 537 exit signal Segmentation 
fault (11)
[Sun Oct 06 09:34:13 2002] [notice] child pid 21172 exit signal 
Segmentation fault (11)
[Sun Oct 06 09:34:13 2002] [notice] child pid 30127 exit signal 
Segmentation fault (11)

Second HUP sent:
[Sun Oct 06 09:34:37 2002] [notice] SIGHUP received.  Attempting to restart

Dead. No apache2 process anymore seen.

BTW: here the grsecurity log, perhaps interesting:

Oct  6 09:34:13 tunnel grsec: signal 11 sent to (httpd2:24107) UID(92) 
EUID(92), parent (httpd2:29901) UID(92) EUID(92)
Oct  6 09:34:13 tunnel grsec: signal 11 sent to (httpd2:28573) UID(92) 
EUID(92), parent (httpd2:29901) UID(92) EUID(92) by (httpd2:29901) UID(92) 
EUID(92), parent (httpd2:30127) UID(92) EUID(92)


Is this a known issue? Is it a problem of apache, perchild or grsecurity?

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