BUG: warning at drivers/char/vt.c:3485/set_palette()
 [<c024dcbd>] set_palette+0x5d/0x60
 [<c024f392>] redraw_screen+0x102/0x1e0
 [<c0246e0c>] complete_change_console+0x2c/0xf0
 [<c024f774>] console_callback+0xc4/0xe0
 [<c012c346>] run_workqueue+0x86/0x120
 [<c024f6b0>] console_callback+0x0/0xe0
 [<c012ca57>] worker_thread+0x147/0x170
 [<c0117670>] default_wake_function+0x0/0x20
 [<c012c910>] worker_thread+0x0/0x170
 [<c012fb4d>] kthread+0xfd/0x110
 [<c012fa50>] kthread+0x0/0x110
 [<c0103c9b>] kernel_thread_helper+0x7/0x1c
 =======================
BUG: warning at drivers/char/vt.c:3331/do_blank_screen()
 [<c024eb79>] do_blank_screen+0x169/0x290
 [<c0246e26>] complete_change_console+0x46/0xf0
 [<c024f774>] console_callback+0xc4/0xe0
 [<c012c346>] run_workqueue+0x86/0x120
 [<c024f6b0>] console_callback+0x0/0xe0
 [<c012ca57>] worker_thread+0x147/0x170
 [<c0117670>] default_wake_function+0x0/0x20
 [<c012c910>] worker_thread+0x0/0x170
 [<c012fb4d>] kthread+0xfd/0x110
 [<c012fa50>] kthread+0x0/0x110
 [<c0103c9b>] kernel_thread_helper+0x7/0x1c
 =======================