Description of problem: [ INFO: possible recursive locking detected ] 3.0.1-3.fc16.x86_64 #1 --------------------------------------------- kworker/7:0/13732 is trying to acquire lock: (&ps2dev->cmd_mutex){+.+...}, at: [<ffffffff8138c5f2>] ps2_begin_command+0x1a/0x2f but task is already holding lock: (&ps2dev->cmd_mutex){+.+...}, at: [<ffffffff8138c5f2>] ps2_begin_command+0x1a/0x2f other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&ps2dev->cmd_mutex); lock(&ps2dev->cmd_mutex); *** DEADLOCK *** May be due to missing lock nesting notation 7 locks held by kworker/7:0/13732: #0: (events_long){.+.+.+}, at: [<ffffffff81071740>] process_one_work+0x14d/0x379 #1: (serio_event_work){+.+.+.}, at: [<ffffffff81071740>] process_one_work+0x14d/0x379 #2: (serio_mutex){+.+.+.}, at: [<ffffffff8138a83c>] serio_handle_event+0x1e/0x197 #3: (&__lockdep_no_validate__){+.+.+.}, at: [<ffffffff8130b5d9>] device_attach+0x21/0xa4 #4: (&serio->drv_mutex){+.+.+.}, at: [<ffffffff81389972>] serio_driver_probe+0x31/0x57 #5: (psmouse_mutex){+.+.+.}, at: [<ffffffff81396fb3>] psmouse_connect+0x2d/0x2cb #6: (&ps2dev->cmd_mutex){+.+...}, at: [<ffffffff8138c5f2>] ps2_begin_command+0x1a/0x2f stack backtrace: Pid: 13732, comm: kworker/7:0 Not tainted 3.0.1-3.fc16.x86_64 #1 Call Trace: [<ffffffff8108a3b9>] __lock_acquire+0x917/0xcf7 [<ffffffff8109309b>] ? __module_text_address+0x14/0x5e [<ffffffff81096341>] ? is_module_text_address+0xe/0x16 [<ffffffff81073a12>] ? __kernel_text_address+0x26/0x4c [<ffffffff8100bd0a>] ? print_context_stack+0xc0/0xd8 [<ffffffff8138c5f2>] ? ps2_begin_command+0x1a/0x2f [<ffffffff8108ac26>] lock_acquire+0xbf/0x103 [<ffffffff8138c5f2>] ? ps2_begin_command+0x1a/0x2f [<ffffffff8100af3a>] ? dump_trace+0x2fe/0x30d [<ffffffff8138c5f2>] ? ps2_begin_command+0x1a/0x2f [<ffffffff814db822>] __mutex_lock_common+0x4c/0x361 [<ffffffff8138c5f2>] ? ps2_begin_command+0x1a/0x2f [<ffffffff81089f92>] ? __lock_acquire+0x4f0/0xcf7 [<ffffffff81014245>] ? save_stack_trace+0x2c/0x49 [<ffffffff81087eea>] ? save_trace+0x3d/0xa7 [<ffffffff814dbc46>] mutex_lock_nested+0x40/0x45 [<ffffffff8138c5f2>] ps2_begin_command+0x1a/0x2f [<ffffffff8138c624>] ps2_command+0x1d/0x41 [<ffffffff81396b0d>] psmouse_sliced_command+0x28/0x7a [<ffffffff81397a6d>] synaptics_pt_write+0x39/0x63 [<ffffffff8138c137>] ps2_sendbyte+0x5d/0x120 [<ffffffff8108b029>] ? trace_hardirqs_on_caller+0x10b/0x12f [<ffffffff8108b05a>] ? trace_hardirqs_on+0xd/0xf [<ffffffff8138c311>] __ps2_command+0xee/0x389 [<ffffffff814dbc46>] ? mutex_lock_nested+0x40/0x45 [<ffffffff8138c633>] ps2_command+0x2c/0x41 [<ffffffff813960e5>] psmouse_probe+0x32/0x83 [<ffffffff813970f8>] psmouse_connect+0x172/0x2cb [<ffffffff8138a81e>] ? serio_rebind_driver+0x1dd/0x1dd [<ffffffff8138997f>] serio_driver_probe+0x3e/0x57 [<ffffffff8130b563>] ? driver_sysfs_add+0x70/0x96 [<ffffffff8130b7d3>] driver_probe_device+0x131/0x213 [<ffffffff8130b971>] __device_attach+0x3a/0x3f [<ffffffff8130b937>] ? __driver_attach+0x82/0x82 [<ffffffff8130a501>] bus_for_each_drv+0x59/0x8f [<ffffffff8130b638>] device_attach+0x80/0xa4 [<ffffffff81389a4f>] serio_find_driver+0x1e/0x45 [<ffffffff8138a5c4>] serio_reconnect_port+0x62/0x6e [<ffffffff8138a8f5>] serio_handle_event+0xd7/0x197 [<ffffffff810717c1>] process_one_work+0x1ce/0x379 [<ffffffff81071740>] ? process_one_work+0x14d/0x379 [<ffffffff81088ba4>] ? lock_acquired+0x1f6/0x229 [<ffffffff810724c1>] worker_thread+0xda/0x15d [<ffffffff810723e7>] ? manage_workers+0x175/0x175 [<ffffffff810723e7>] ? manage_workers+0x175/0x175 [<ffffffff81075e5d>] kthread+0xa8/0xb0 [<ffffffff814e5064>] kernel_thread_helper+0x4/0x10 [<ffffffff814dd714>] ? retint_restore_args+0x13/0x13 [<ffffffff81075db5>] ? __init_kthread_worker+0x5a/0x5a [<ffffffff814e5060>] ? gs_change+0x13/0x13 Version-Release number of selected component (if applicable): kernel 3.0.1-3.fc16.x86_64 How reproducible: Occured once Steps to Reproduce: 1. hibernate laptop
[mass update] kernel-3.3.0-4.fc16 has been pushed to the Fedora 16 stable repository. Please retest with this update.
This bug no longer occurs when hibernating on kernel-3.3.0-1.fc17.x86_64