As per Ivan's comment on IRC: ivanhu> PHLin, if you have new bios, you can update and test it. but I believe it won't help. you can just disable uart(com) on bios setup. the failure will disappear.
As com port is out of scope of our coverage, I will mark this bug as Won't Fix ** Changed in: linux-lts-raring (Ubuntu) Status: Incomplete => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1232975 Title: [Dell Optiplex 9020] High kernel failures in suspend / hibernate log. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-raring/+bug/1232975/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs