Lenovo X240 (haswell) suspend-to-ram hangs on 3-14.0-rc2

[Jeff Chua]

Can't suspend to ram/disk on the Lenovo X240 with Intel i7-4600.

kernel 3.14.0-rc2

The same kernel works find on Lenovo X230 with Intel i7-3520M.

Here's the trace ..


[<ffffffff81034ba6>] ? do_exit+0x852/0x89d
[<ffffffff8158e5d8>] ? prinfk+0x4f/0x54
[<iiffffff81005060>] ? oops_end+0x78/0x7d
[<ffffffff8158dc00>] ? no_context+0x1e6/0x1f5
[<ffffffff810274f8>] ? __do_page_fault+0x348/0x3c7
[<ffffffff8159376a>] ? __schedule+0x6Z3/0x775
[<ffffffff81596562>] ? page_fault+0x2Z/8x30
[<ffffffff814e76e4>] ? azx_enter_link_reset.isra.26+0x9/0x51
[<ffffffff814e68ac>] ? azx_clear_irq_pending+0x12/0x3e
[<ffffffff814e7821>1 ? azx_suspend+0xa1/0x105
[<ffffffff8128f543>] ? pci_pm_suspend+0x6e/0xee
[<ffffffff8128f4d5>] ? pci_pm_poweroff+0xb4/0xb4
[<ffffffff81333479>] ? dpm_run_callback.isra.8+0x24/8x52
[<ffffffff813335df>] ? __device_suspend+8x138/0x19b
[<ffffffff81333658>] ? async_suspend+0x16/0x7d
[<ffffffff8104d743>] ? async_run_entry_fn+0x55/0x10b
[<ffffffff81044abf>] ? process_one_work+0x1be/0x2ef
[<ffffffff8104503d>] ? worker_thread+0x1cb/0x2c4
[<ffffffff81044e72>] ? rescuer_thread+0x25d/0x25d
[<ffffffff81049a93>] ? kthread+0xc5/0xcd
[<ffffffff81040000>] ? SyS_setpriority+0x179/0x233
[<ffffffff810499ce>l ? kthread_freezable_should_stop+0x3b/0x3b
[<ffffffff8159697c>] ? rat_from_fork+0x7c/0xb0
[<ffffffff810499ce>l ? kthread_freezable_should_stop+0x3b/0x3b


Thanks,
Jeff
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