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Subject [Bug 59348] New: Graceful Reload with H2 (SSL) connections being terminated
Date Mon, 18 Apr 2016 12:10:22 GMT

            Bug ID: 59348
           Summary: Graceful Reload with H2 (SSL) connections being
           Product: Apache httpd-2
           Version: 2.4.20
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: mod_http2

When attempting a graceful reload in Apache 2.4.20, if there is a long-running
(or currently active) connection on HTTP then the reload handles perfectly
fine. The long running process continues without disruption.

However, if the user is on HTTPS (we have H2 setup, but it may be a general SSL
issue), then when the reload comes in, it terminates the HTTPS connection and
throws a segmentation fault. 

It seems that apache is closing all active SSL connections during a graceful
reload, but HTTP connections reload.

[Mon Apr 18 11:54:07.580084 2016] [mpm_prefork:notice] [pid 5483] AH00171:
Graceful restart requested, doing restart
[Mon Apr 18 11:54:09.174860 2016] [mpm_prefork:notice] [pid 5483] AH00163:
Apache/2.4.20 (Ubuntu) OpenSSL/1.0.2g configured -- resuming normal operations
[Mon Apr 18 11:54:09.180786 2016] [core:notice] [pid 5483] AH00094: Command
line: '/usr/sbin/apache2'
[Mon Apr 18 11:54:13.198995 2016] [core:notice] [pid 5483] AH00051: child pid
5487 exit signal Segmentation fault (11), possible coredump in /etc/apache2

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