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Follow up to r1527220/r1588852:

Implement better error checking/reporting around notification of abrupt parent
process termination.

It is likely that something bad is happening here based on these
user reports:

https://www.apachelounge.com/viewtopic.php?p=27848
http://mail-archives.apache.org/mod_mbox/httpd-users/201406.mbox/%3CCAC%2BRZnuwLD%2BJnoy2TYO8oeAWt6bFLMa%3DEhfDf9hS3cuuGUHXAw%40mail.gmail.com%3E


w-up to r1606368: HANDLE is PVOID which is void * (fix format string)

Submitted by: trawick
Reviewed by: covener, gsmith


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vote/promote



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mod_proxy: When ping/pong is configured for a worker, don't send or forward
           "100 Continue" (interim) response to the client if it does not
           expect one.

Submitted by: ylavic
Reviewed/backported by: jim


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Avoid useless functions calls.

Submitted by: ylavic
Reviewed/backported by: jim


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For better compatibility with mod_nss:

* modules/ssl/ssl_engine_config.c (ssl_config_server_new): Default
  sc->enabled to UNSET.

* modules/ssl/ssl_engine_init.c (ssl_init_Module): Only override
  sc->enabled based on the protocol iff sc->enabled is UNSET; allows
  "SSLEngine off" to override the Listen-based default.

Submitted by: jorton
Reviewed/backported by: jim


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mod_ssl: send OCSP request's nonce according to SSLOCSPUseRequestNonce on/off. PR 56233.


mod_ssl: follow up to r1583191.

New SSLOCSPUseRequestNonce directive's manual and CHANGES.

Non functional code changes (modssl_ctx_t's field ocsp_use_request_nonce
grouped with other OCSP ones, nested if turned to a single AND condition).


Remove SSLOCSPUseRequestNonce OpenSSL-0.9.7 requirement (0.9.8 already required by httpd-2.4) and set availability to 2.5-dev until further notice.

mod_ssl: follow up to r1583191.

Use type BOOL for modssl_ctx_t's field ocsp_use_request_nonce.
Suggested by: kbrand.

Submitted by: ylavic
Reviewed/backported by: jim


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Remove wonky and unneeded code. We have access
cross forks, so child processes have access.

When we need true external access, this is something
that APR shm must provide. We should have no
knowledge of APR internals.
Reviewed/backported by: jim


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conservative.



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r1604353 in trunk

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mod_proxy_fcgi: Fix occasional high CPU when handling request bodies.

Submitted by: trawick
Reviewed by: covener, ylavic


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* event MPM: fix a race where a worker looks at a conn_rec after it might be
  in use by another thread or may have been freed and 
  re-allocated.

Submitted By: Edward Lu



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authnzldap: support "none" as a filter to suppress using a search filter,
which is required by some mainframe security products serving native
registry over LDAP.



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mod_lua backport: Make httpd find lua 5.2 headers/lib during configure if present on the system (mod_lua is fully compatible with 5.2).

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the busy-loop patch, 3.6-4.7% CPU with the busy-loop patch


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