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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 51059] Some httpd process hang on a strange stack
Date Thu, 14 Apr 2011 07:23:54 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=51059

--- Comment #3 from zhannk@gmail.com 2011-04-14 03:23:50 EDT ---
(In reply to comment #2)
> It is a PHP issue... but note that these are all hung in the clib malloc/free
> logic, so there is some internal clib mutexing that has become fluxored.
> 
> Make sure you didn't link up different clib/[mt]malloc libraries in PHP and
> in httpd.


Thank you, William, here're the libraries linked. It looks like all clib are
the same... we already raised a bug at PHP support site. the same application
runs well on a Solaris 9 box. This really goes weird.  


$ ldd httpd
        libm.so.2 =>     /lib/libm.so.2
        libaprutil-1.so.0 =>     /data2/apache/lib/libaprutil-1.so.0
        libexpat.so.0 =>         /data2/apache/lib/libexpat.so.0
        libapr-1.so.0 =>         /data2/apache/lib/libapr-1.so.0
        libuuid.so.1 =>  /lib/libuuid.so.1
        libsendfile.so.1 =>      /lib/libsendfile.so.1
        librt.so.1 =>    /lib/librt.so.1
        libsocket.so.1 =>        /lib/libsocket.so.1
        libnsl.so.1 =>   /lib/libnsl.so.1
        libpthread.so.1 =>       /lib/libpthread.so.1
        libc.so.1 =>     /lib/libc.so.1
        libaio.so.1 =>   /lib/libaio.so.1
        libmd.so.1 =>    /lib/libmd.so.1
        libmp.so.2 =>    /lib/libmp.so.2
        libscf.so.1 =>   /lib/libscf.so.1
        libdoor.so.1 =>  /lib/libdoor.so.1
        libuutil.so.1 =>         /lib/libuutil.so.1
        libgen.so.1 =>   /lib/libgen.so.1
        /platform/SUNW,SPARC-Enterprise-T2000/lib/libc_psr.so.1
        /platform/SUNW,SPARC-Enterprise-T2000/lib/libmd_psr.so.1

$ ldd ../modules/libphp5.so
warning: ldd: ../modules/libphp5.so: is not executable
        librt.so.1 =>    /lib/librt.so.1
        libmcrypt.so.4 =>        /usr/local/lib/libmcrypt.so.4
        libltdl.so.3 =>  /usr/local/lib/libltdl.so.3
        libpng12.so.0 =>         /usr/local/lib/libpng12.so.0
        libz.so =>       /usr/local/lib/libz.so
        libresolv.so.2 =>        /lib/libresolv.so.2
        libm.so.2 =>     /lib/libm.so.2
        libnsl.so.1 =>   /lib/libnsl.so.1
        libsocket.so.1 =>        /lib/libsocket.so.1
        libxml2.so.2 =>  /usr/local/lib/libxml2.so.2
        libiconv.so.2 =>         /usr/local/lib/libiconv.so.2
        libc.so.1 =>     /lib/libc.so.1
        libgcc_s.so.1 =>         /usr/local/lib/libgcc_s.so.1
        libaio.so.1 =>   /lib/libaio.so.1
        libmd.so.1 =>    /lib/libmd.so.1
        libdl.so.1 =>    /lib/libdl.so.1
        libmp.so.2 =>    /lib/libmp.so.2
        libscf.so.1 =>   /lib/libscf.so.1
        libpthread.so.1 =>       /usr/lib/libpthread.so.1
        libdoor.so.1 =>  /lib/libdoor.so.1
        libuutil.so.1 =>         /lib/libuutil.so.1
        libgen.so.1 =>   /lib/libgen.so.1
        /platform/SUNW,SPARC-Enterprise-T2000/lib/libc_psr.so.1
        /platform/SUNW,SPARC-Enterprise-T2000/lib/libmd_psr.so.1

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