VM with 1GB RAM in Hyper-V server gets restarted while Updating glibc rpm

I created a linux RHEL 6.1 based VM in Hyper-V server windows 2012R2.

VM settings are given below:-

• Start up RAM=1GB.
• Max RAM=2GB(dynamic expandable).
• RAM type=dynamic

We are trying to upgrade old  version of glibc rpm(glibc.i686 02.12-1.25.el6)  with new version(glibc-2.12-1.149.el6_6.5.i686) on this VM using yum command. We also tried using rpm -Uvh command but result is same. We did the same upgrade in ESX server VM there it is getting updated successfully.

While installing new glibc, VM is getting restarted unexpectedly. 

Note: This behavior is not seen on ESX hosted VM.