Dear, Please check if there is also error log contained OOM kill? Xlord -----Original Message----- From: CentOS-virt [mailto:centos-virt-bounces@xxxxxxxxxx] On Behalf Of Gokan Atmaca Sent: Wednesday, December 7, 2016 9:16 PM To: Discussion about the virtualization on CentOS <centos-virt@xxxxxxxxxx> Subject: vm.dirty_ratio Hello I get the following error on the server. The problem is resolved when you restart. But is this causing the problem? messages_log: INFO: task jbd2/dm-1-8:674 blocked for more than 120 seconds echo 0 > /proc/sys/kernel/hung_task_timeout_secs Thanks. _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos-virt _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos-virt