Messages in this thread | | | Date | Wed, 30 Aug 2006 17:11:20 -0300 | From | "Luiz Fernando N. Capitulino" <> | Subject | LOCKDEP: input layer warning. |
| |
Hi Dmitry,
A Mandriva user is getting the lockdep warning bellow when running an unpatched 2.6.18-rc5 kernel.
But according to this thread:
http://www.uwsg.iu.edu/hypermail/linux/kernel/0607.0/1598.html
this was reported already, but not fixed.
============================================= [ INFO: possible recursive locking detected ] --------------------------------------------- kseriod/187 is trying to acquire lock: (&ps2dev->cmd_mutex/1){--..}, at: [<c024b1da>] ps2_command+0x7b/0x2d6
but task is already holding lock: (&ps2dev->cmd_mutex/1){--..}, at: [<c024b1da>] ps2_command+0x7b/0x2d6
other info that might help us debug this: 4 locks held by kseriod/187: #0: (serio_mutex){--..}, at: [<c02bfd62>] mutex_lock+0x1c/0x1f #1: (&serio->drv_mutex){--..}, at: [<c02bfd62>] mutex_lock+0x1c/0x1f #2: (psmouse_mutex){--..}, at: [<c02bfd62>] mutex_lock+0x1c/0x1f #3: (&ps2dev->cmd_mutex/1){--..}, at: [<c024b1da>] ps2_command+0x7b/0x2d6
stack backtrace: [<c010454c>] show_trace_log_lvl+0x58/0x152 [<c0104b2c>] show_trace+0xd/0x10 [<c0104c42>] dump_stack+0x19/0x1b [<c0135d2a>] __lock_acquire+0x755/0x973 [<c013648b>] lock_acquire+0x4b/0x6c [<c02bfe28>] mutex_lock_nested+0xc3/0x209 [<c024b1da>] ps2_command+0x7b/0x2d6 [<c024fa91>] psmouse_sliced_command+0x1c/0x5a [<c0252f9a>] synaptics_pt_write+0x1e/0x44 [<c024b0c7>] ps2_sendbyte+0x3e/0xd6 [<c024b25b>] ps2_command+0xfc/0x2d6 [<c024f6c4>] psmouse_probe+0x1d/0x68 [<c025061a>] psmouse_connect+0xe8/0x20f [<c0248f76>] serio_connect_driver+0x1e/0x2e [<c0248f9c>] serio_driver_probe+0x16/0x18 [<c022b08a>] driver_probe_device+0x45/0x92 [<c022b0df>] __device_attach+0x8/0xa [<c022aa29>] bus_for_each_drv+0x3c/0x67 [<c022b135>] device_attach+0x54/0x69 [<c022a765>] bus_attach_device+0x16/0x2b [<c0229bcf>] device_add+0x1f8/0x2e3 [<c0249a09>] serio_thread+0xd0/0x28f [<c0130a1d>] kthread+0xc3/0xf2 [<c0101005>] kernel_thread_helper+0x5/0xb DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb Leftover inexact backtrace: [<c0104b2c>] show_trace+0xd/0x10 [<c0104c42>] dump_stack+0x19/0x1b [<c0135d2a>] __lock_acquire+0x755/0x973 [<c013648b>] lock_acquire+0x4b/0x6c [<c02bfe28>] mutex_lock_nested+0xc3/0x209 [<c024b1da>] ps2_command+0x7b/0x2d6 [<c024fa91>] psmouse_sliced_command+0x1c/0x5a [<c0252f9a>] synaptics_pt_write+0x1e/0x44 [<c024b0c7>] ps2_sendbyte+0x3e/0xd6 [<c024b25b>] ps2_command+0xfc/0x2d6 [<c024f6c4>] psmouse_probe+0x1d/0x68 [<c025061a>] psmouse_connect+0xe8/0x20f [<c0248f76>] serio_connect_driver+0x1e/0x2e [<c0248f9c>] serio_driver_probe+0x16/0x18 [<c022b08a>] driver_probe_device+0x45/0x92 [<c022b0df>] __device_attach+0x8/0xa [<c022aa29>] bus_for_each_drv+0x3c/0x67 [<c022b135>] device_attach+0x54/0x69 [<c022a765>] bus_attach_device+0x16/0x2b [<c0229bcf>] device_add+0x1f8/0x2e3 [<c0249a09>] serio_thread+0xd0/0x28f [<c0130a1d>] kthread+0xc3/0xf2 [<c0101005>] kernel_thread_helper+0x5/0xb
-- Luiz Fernando N. Capitulino - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |