Public bug reported: I created an ami from the official image (ami-505c6924 – region eu- west-1). the rebundled image works fine for a while but ends with nearly 100% iowait and a load of 6000.
The instance type is m1.xlarge without ebs. There are errors in the amazon console before the kernel starts (see attached boot.log): Failed to read /local/domain/0/backend/vbd/161/2049/feature-barrier. Failed to read /local/domain/0/backend/vbd/161/2049/feature-flush-cache. If you are lucky you see errors in the syslog like this: INFO: task jbd2/sda1-8:235 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D ffff880003bcd980 0 235 2 0x00000000 ffff8801b5f49b20 0000000000000246 0000000000000000 0000000000015980 ffff8801b5f49fd8 0000000000015980 ffff8801b5f49fd8 ffff8801b571db80 0000000000015980 0000000000015980 ffff8801b5f49fd8 0000000000015980 The machines are unusable after a few hours. I am testing those images right now. There is no heavy load expected. Karmic images work fine. Packages I've installed are build-essential, git-core, ruby, nginx and couchdb. Node.js is compiled manually. The same error is described on Alestic by Jay Freeman, unfortunately he didn't open any bug here: http://alestic.com/2010/10/ec2-ubuntu-maverick#comment-484 AMI: http://developer.amazonwebservices.com/connect/entry.jspa?externalID=4350 ** Affects: linux-meta (Ubuntu) Importance: Undecided Status: New -- maverick on ec2 64bit ext4 deadlock https://bugs.launchpad.net/bugs/666211 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
