On 2014-02-13 16:54 -0600, Thomas Gleixner [off-list ref] wrote:

On Thu, 23 Jan 2014, Don Estabrook wrote:

quoted

quoted

kernel: WARNING: CPU: 2 PID: 858 at kernel/sched/core.c:2428 migrate_disable+0xed/0x100()

quoted

kernel: WARNING: CPU: 2 PID: 858 at kernel/sched/core.c:2462 migrate_enable+0x17b/0x200()

quoted

kernel: WARNING: CPU: 3 PID: 865 at kernel/sched/core.c:2428 migrate_disable+0xed/0x100()

These are definitely interesting. Please provide the plain
non-lennartized output from

# dmesg

Apologies for the delay - finally had an opportunity to reboot.
Output is attached.  This is actually from the latest CCRMA RT kernel

    3.12.11-300.rt17.1.fc20.ccrma.x86_64+rt

rather than the ones that I originally posted about, but the behaviour
seems to be the same/similar with all three - including the hang when
I try to suspend.

Thanks,

        tglx

Thank you for your interest!
- Don