XEN ERROR: 4GB SEG FIXUP

If you update or install new packages,  please make sure that you check /var/log/message.  Some of the package may revert/overwrite xen patches on libc6.  The result you will see large amount of 4GB SEG FIXUP in your message log.  Although it seems harmless at first, this problem will impact the performance of your server considerably.  

Should your server experience this issue, please do the following procedure in your server through ssh

mv /usr/lib/tls /usr/lib/tls.disabled

echo "hwcap 0 nosegneg" > /etc/ld.so.conf.d/libc6-xen.conf

ldconfig

reboot

 

If the problem persist, please contact support. 

 

 

 

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