nvec-slave panic-1

[  480.161664] Kernel panic - not syncing: hung_task: blocked tasks
[  480.167659] CPU: 0 PID: 17 Comm: khungtaskd Not tainted 3.17.0-rc4-00183-gc0e72c9 #1
[  480.175396] [<c001603c>] (unwind_backtrace) from [<c0011ae0>] (show_stack+0x10/0x14)
[  480.183125] [<c0011ae0>] (show_stack) from [<c05fe6c4>] (dump_stack+0xa0/0xd8)
[  480.190339] [<c05fe6c4>] (dump_stack) from [<c05fca48>] (panic+0xa4/0x214)
[  480.197201] [<c05fca48>] (panic) from [<c0092334>] (watchdog+0x2f0/0x310)
[  480.203979] [<c0092334>] (watchdog) from [<c003c634>] (kthread+0xd8/0xf0)
[  480.210754] [<c003c634>] (kthread) from [<c000e678>] (ret_from_fork+0x14/0x3c)
[  480.217965] CPU1: stopping
[  480.220667] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.17.0-rc4-00183-gc0e72c9 #1
[  480.228229] [<c001603c>] (unwind_backtrace) from [<c0011ae0>] (show_stack+0x10/0x14)
[  480.235958] [<c0011ae0>] (show_stack) from [<c05fe6c4>] (dump_stack+0xa0/0xd8)
[  480.243166] [<c05fe6c4>] (dump_stack) from [<c00147f0>] (handle_IPI+0x148/0x15c)
[  480.250546] [<c00147f0>] (handle_IPI) from [<c00087c8>] (gic_handle_irq+0x58/0x5c)
[  480.258101] [<c00087c8>] (gic_handle_irq) from [<c00126c0>] (__irq_svc+0x40/0x74)
[  480.265564] Exception stack(0xdb497f38 to 0xdb497f80)
[  480.270601] 7f20:                                                       00000000 c088c674
[  480.278760] 7f40: c088c674 0000004c c95b4a08 0000006f cf234120 0000006f dbbbbe88 c091e31c
[  480.286918] 7f60: 00000000 db796e40 7d000000 db497f80 c040089c c04008a8 600f0013 ffffffff
[  480.295085] [<c00126c0>] (__irq_svc) from [<c04008a8>] (cpuidle_enter_state+0x68/0xe8)
[  480.302989] [<c04008a8>] (cpuidle_enter_state) from [<c0402464>] (cpuidle_enter_state_coupled+0x124/0x374)
[  480.312625] [<c0402464>] (cpuidle_enter_state_coupled) from [<c00555e0>] (cpu_startup_entry+0x1f4/0x218)
[  480.322085] [<c00555e0>] (cpu_startup_entry) from [<00008864>] (0x8864)
[  480.328683] drm_kms_helper: panic occurred, switching back to text console
[  480.335588] ---[ end Kernel panic - not syncing: hung_task: blocked tasks