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Posted to commits@apr.apache.org by tr...@apache.org on 2009/11/17 15:31:39 UTC
svn commit: r881303 - in /apr/apr/branches/1.3.x: CHANGES build/apr_hints.m4
Author: trawick
Date: Tue Nov 17 14:31:39 2009
New Revision: 881303
URL: http://svn.apache.org/viewvc?rev=881303&view=rev
Log:
merge r881301 from trunk:
Solaris 10 or later: Use pthread by default for cross-process mutex instead of
fcntl; the latter is not thread-aware, leading to EDEADLK failures with some multi-
threaded, multi-process applications.
Proper recovery after a crash of the mutex owner was tested on Solaris 10 U5 and
OpenSolaris 2009.06. Earlier Solaris versions weren't tested, and there were
reports in httpd-land long ago about failures to recover the mutex.
Modified:
apr/apr/branches/1.3.x/CHANGES
apr/apr/branches/1.3.x/build/apr_hints.m4
Modified: apr/apr/branches/1.3.x/CHANGES
URL: http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/CHANGES?rev=881303&r1=881302&r2=881303&view=diff
==============================================================================
--- apr/apr/branches/1.3.x/CHANGES [utf-8] (original)
+++ apr/apr/branches/1.3.x/CHANGES [utf-8] Tue Nov 17 14:31:39 2009
@@ -1,6 +1,11 @@
-*- coding: utf-8 -*-
Changes for APR 1.3.10
+ *) Solaris 10 and later: Change the default cross-mutex mechanism from
+ fcntl to pthread to resolve EDEADLK failures with some multi-threaded,
+ multi-process applications (e.g., httpd's worker MPM with certain
+ plug-in modules). [Jeff Trawick]
+
*) Solaris pollcb support: Fix a hang in apr_pollcb_poll().
[Jeff Trawick]
Modified: apr/apr/branches/1.3.x/build/apr_hints.m4
URL: http://svn.apache.org/viewvc/apr/apr/branches/1.3.x/build/apr_hints.m4?rev=881303&r1=881302&r2=881303&view=diff
==============================================================================
--- apr/apr/branches/1.3.x/build/apr_hints.m4 (original)
+++ apr/apr/branches/1.3.x/build/apr_hints.m4 Tue Nov 17 14:31:39 2009
@@ -244,7 +244,11 @@
*-solaris2*)
PLATOSVERS=`echo $host | sed 's/^.*solaris2.//'`
APR_ADDTO(CPPFLAGS, [-DSOLARIS2=$PLATOSVERS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT])
- APR_SETIFNULL(apr_lock_method, [USE_FCNTL_SERIALIZE])
+ if test $PLATOSVERS -ge 10; then
+ APR_SETIFNULL(apr_lock_method, [USE_PROC_PTHREAD_SERIALIZE])
+ else
+ APR_SETIFNULL(apr_lock_method, [USE_FCNTL_SERIALIZE])
+ fi
# readdir64_r error handling seems broken on Solaris (at least
# up till 2.8) -- it will return -1 at end-of-directory.
APR_SETIFNULL(ac_cv_func_readdir64_r, [no])