Starting httpd2 (prefork) /usr/sbin/httpd2-prefork: symbol lookup error: /usr/sbin/httpd2-prefork: undefined symbol: apr_atomic_xchgptr

10 Comments

1. 

   Thank you very much for this nice article 😉

2. 

   Someone’s formatter got a little carried away on the command line and turned the — into an em dash. Replace the — with two hyphens and it works.

3. LAMP Help - openSUSE Forums
   

   16 years ago

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4. 

   Worked on OpenSuSE 11 as root:

   yast2 –update apache2-utils apache2-prefork libapr-util1 libapr1

5. 

   Thanks for this tip, I had the same problem upgrading to Apache2_2.2.11. I had to install libapr-util & libapr1 separately, but everything worked. Thanks…

6. 

   thanks a lot

7. 

   kudos for the fix!!

   happy camper:-)

8. 

   hello colls,

   I have some trouble, when try to update libapr1.
   I has got a message:

   Problem: nothing provides libc.so.6(GLIBC_2.9) needed by libapr1-1.3.8-3.1.i586
   Solution 1: do not ask to install a solvable providing libapr1 > 1.2.12-27.2

   Help me pls 🙂

9. 

   Thanks you!

   Although it didn’t work quite as described for me…. but based on info provided I changed to:

   zypper in libapr1 libapr-util1 apache2-utils

   and this fixed the problem on my SLES 10 sp2 server.

   Thanks,
   Ben.

10. 

    Hi!

    I fix it removing manually the old libraries that I have on /usr/local/lib and apache2 remains using that ones:

    Code:
    root@posido:/home/rgarcia# cp -up /usr/local/lib/libapr* libapr/
    root@posido:/home/rgarcia# rm -i /usr/local/lib/libapr*
    rm: remove regular file `/usr/local/lib/libapr-1.a’? y
    rm: remove regular file `/usr/local/lib/libapr-1.la’? y
    rm: remove symbolic link `/usr/local/lib/libapr-1.so’? y
    rm: remove symbolic link `/usr/local/lib/libapr-1.so.0′? y
    rm: remove regular file `/usr/local/lib/libapr-1.so.0.2.12′? y
    rm: remove regular file `/usr/local/lib/libaprutil-1.a’? y
    rm: remove regular file `/usr/local/lib/libaprutil-1.la’? y
    rm: remove symbolic link `/usr/local/lib/libaprutil-1.so’? y
    rm: remove symbolic link `/usr/local/lib/libaprutil-1.so.0′? y
    rm: remove regular file `/usr/local/lib/libaprutil-1.so.0.2.12′? y

    then reinstall the last version of libaprutil1 libaprutil1-dev libapr1 libapr1-dev and check that apache2 are using the correct apr libraries with

    Code:

    root@posido:/home/rgarcia# ldd /usr/sbin/apache2
    linux-vdso.so.1 => (0x00007fffe4123000)
    libpcre.so.3 => /lib/libpcre.so.3 (0x00007f3a303b2000)
    libaprutil-1.so.0 => /usr/lib/libaprutil-1.so.0 (0x00007f3a3018f000)
    libapr-1.so.0 => /usr/lib/libapr-1.so.0 (0x00007f3a2ff59000)
    libpthread.so.0 => /lib/libpthread.so.0 (0x00007f3a2fd3c000)
    libc.so.6 => /lib/libc.so.6 (0x00007f3a2f9b9000)
    libuuid.so.1 => /lib/libuuid.so.1 (0x00007f3a2f7b3000)
    librt.so.1 => /lib/librt.so.1 (0x00007f3a2f5ab000)
    libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007f3a2f372000)
    libdl.so.2 => /lib/libdl.so.2 (0x00007f3a2f16d000)
    libexpat.so.1 => /lib/libexpat.so.1 (0x00007f3a2ef44000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f3a3087d000)

    and It works!

    Code:
    root@posido:/home/rgarcia# /etc/init.d/apache2 start
    * Starting web server apache2 [ OK ]

    I hope it helps.