Thanks for the added information, Jamie. Have you tried various combinations of the three parameters:
CONFIG_IRQ_FORCED_THREADING_DEFAULT=n CONFIG_PREEMPT=n CONFIG_PREEMPT_RCU=n It would be good to know if we only need to disable one of these parameters. In particular it would be good to know if setting CONFIG_IRQ_FORCED_THREADING_DEFAULT to n and the two PREEMPT options to y also resolves the bug. I know we tried using the nothreadirqs option, but it would be good to confirm by disabling it in the config. I can build you a kernel with CONFIG_IRQ_FORCED_THREADING_DEFAULT un- set, unless you want to build one yourself? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1275116 Title: lowlatency-flavour crashes and locks up alot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1275116/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs