CentOS - Jun 2007 - Exe file size is chaning during runtime

Dear All,

    We have observed the exe file size getting changed during run time
of the system in CentOS.

We are using CentOS 4.4 release.

We have taken "strings" of the original "exe" and changed
"exe". Then we
compared the strings output of the two. The difference is given below.

We are not sure why this is happening. Can some one throw light on this.


diff oldExeStrings newExeStrings
1a2,8
> MzFX#
>       PzFr
> MzF`
> MzFm
> MzF%
> MzFXi
> MzF
163a171,182
> libssl.so.4
> libcrypto.so.4
> libkrb5.so.3
> libcom_err.so.2
> libcrypt.so.1
> libresolv.so.2
> libnsl.so.1
> libpthread.so.0
> /lib/ld-linux.so.2
> libgssapi_krb5.so.2
> libk5crypto.so.3
> libz.so.1
--Regards
S.Balaji

On 6/21/07, balajisundar at midascomm.com <balajisundar at midascomm.com>
wrote:
>     We have observed the exe file size getting changed during run time
> of the system in CentOS.
Yep. that's normal.
> We are not sure why this is happening. Can some one throw light on this.
Prelink.
Basically there's a cron job that runs weekly, which optimizes
binaries to load faster. It will change md5sums on the binaries it
modifies. You can alter this behavior if you wish by setting
parameters in /etc/sysconfig/prelink.

-- 
During times of universal deceit, telling the truth becomes a revolutionary act.
George Orwell