[   14.258042] ------------[ cut here ]------------
[   14.258102] WARNING: at /build/buildd/linux-2.6.28/lib/kref.c:43 kref_get+0x21/0x30()
[   14.258161] Modules linked in: snd_seq(+) snd_timer snd_seq_device snd soundcore radio_maestro pcspkr videodev i2c_piix4 psmouse serio_raw v4l1_compat intel_agp yenta_socket agpgart rsrc_nonstatic pcmcia_core shpchp usbhid fbcon tileblit font bitblit softcursor
[   14.258760] Pid: 965, comm: modprobe Not tainted 2.6.28-11-generic #40-Ubuntu
[   14.258810] Call Trace:
[   14.258869]  [<c0500ac6>] ? printk+0x18/0x1a
[   14.258923]  [<c0139b24>] warn_on_slowpath+0x54/0x80
[   14.258972]  [<c0133d0b>] ? default_wake_function+0xb/0x10
[   14.259026]  [<c0128ea0>] ? __wake_up_common+0x40/0x70
[   14.259079]  [<c02ca323>] ? __rb_erase_color+0xc3/0x170
[   14.259128]  [<c02ca49d>] ? rb_erase+0xcd/0x150
[   14.259177]  [<c0102ab7>] ? __switch_to+0xb7/0x1a0
[   14.259230]  [<c012f9cb>] ? finish_task_switch+0x2b/0xe0
[   14.259277]  [<c050104a>] ? schedule+0x41a/0x710
[   14.259324]  [<c02c8171>] kref_get+0x21/0x30
[   14.259370]  [<c02c7402>] kobject_get+0x12/0x20
[   14.259419]  [<c034bfc3>] get_device+0x13/0x20
[   14.259471]  [<c034f6fd>] klist_class_dev_get+0xd/0x10
[   14.259531]  [<c04f0cfe>] klist_node_init+0x3e/0x70
[   14.259579]  [<c04f0e0a>] klist_add_tail+0x1a/0x50
[   14.259625]  [<c034d147>] device_add+0x377/0x3f0
[   14.259673]  [<c02c68d4>] ? ida_get_new_above+0x84/0x1c0
[   14.259721]  [<c034d1d2>] device_register+0x12/0x20
[   14.259767]  [<c034d28a>] device_create_vargs+0xaa/0xc0
[   14.259814]  [<c034d2c8>] device_create+0x28/0x30
[   14.259909]  [<e09cd414>] snd_register_device_for_dev+0xd4/0x150 [snd]
[   14.259991]  [<e0a3b000>] ? alsa_seq_init+0x0/0x60 [snd_seq]
[   14.260047]  [<e0a3b0d0>] snd_sequencer_device_init+0x4f/0x71 [snd_seq]
[   14.260107]  [<e0a3b02f>] alsa_seq_init+0x2f/0x60 [snd_seq]
[   14.260155]  [<c010111e>] _stext+0x2e/0x170
[   14.260210]  [<c020c015>] ? sysfs_addrm_finish+0x15/0xf0
[   14.260257]  [<c020b7e3>] ? sysfs_add_one+0x13/0x50
[   14.260303]  [<c020b85f>] ? sysfs_addrm_start+0x3f/0xa0
[   14.260364]  [<c01a908c>] ? __vunmap+0x9c/0xe0
[   14.260410]  [<c01a908c>] ? __vunmap+0x9c/0xe0
[   14.260461]  [<c01a9121>] ? vfree+0x21/0x30
[   14.260514]  [<c0163f3a>] ? load_module+0x103a/0x1040
[   14.260572]  [<c0163fc8>] sys_init_module+0x88/0x1b0
[   14.260620]  [<c0103f6b>] sysenter_do_call+0x12/0x2f
[   14.260669]  [<c0500000>] ? relay_hotcpu_callback+0x6d/0xbd
[   14.260714] ---[ end trace c3308ad2edfa0be6 ]---
[   14.260797] ------------[ cut here ]------------
[   14.260841] kernel BUG at /build/buildd/linux-2.6.28/mm/slub.c:2743!
[   14.260889] invalid opcode: 0000 [#1] SMP 
[   14.260968] last sysfs file: /sys/devices/virtual/tty/tty17/dev
[   14.261017] Dumping ftrace buffer:
[   14.261058]    (ftrace buffer empty)
[   14.261095] Modules linked in: snd_seq(+) snd_timer snd_seq_device snd soundcore radio_maestro pcspkr videodev i2c_piix4 psmouse serio_raw v4l1_compat intel_agp yenta_socket agpgart rsrc_nonstatic pcmcia_core shpchp usbhid fbcon tileblit font bitblit softcursor
[   14.261677] 
[   14.261713] Pid: 965, comm: modprobe Tainted: G        W  (2.6.28-11-generic #40-Ubuntu) 
[   14.261774] EIP: 0060:[<c01b838a>] EFLAGS: 00010246 CPU: 0
[   14.261822] EIP is at kfree+0xba/0xc0
[   14.261850] EAX: 40000008 EBX: de003035 ECX: 00000000 EDX: c13c0060
[   14.261850] ESI: 00000000 EDI: de003035 EBP: dd901cf4 ESP: dd901cdc
[   14.261850]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[   14.261850] Process modprobe (pid: 965, ti=dd900000 task=dd8d3240 task.ti=dd900000)
[   14.261850] Stack:
[   14.261850]  ddaa6a78 00000000 ddaa6a78 ddaa6a78 00000000 de003035 dd901d08 c02c73b5
[   14.261850]  ddaa6a94 c02c7360 dd9bfe88 dd901d18 c02c810d ddaa6a78 ddaa6a00 dd901d38
[   14.261850]  c02c7290 dd901d30 c04f0cfe dd901d30 c0502cf8 dd901d40 00000000 dd901d40
[   14.261850] Call Trace:
[   14.261850]  [<c02c73b5>] ? kobject_release+0x55/0x90
[   14.261850]  [<c02c7360>] ? kobject_release+0x0/0x90
[   14.261850]  [<c02c810d>] ? kref_put+0x2d/0x70
[   14.261850]  [<c02c7290>] ? kobject_put+0x20/0x50
[   14.261850]  [<c04f0cfe>] ? klist_node_init+0x3e/0x70
[   14.261850]  [<c0502cf8>] ? _spin_lock+0x8/0x10
[   14.261850]  [<c034bf8f>] ? put_device+0xf/0x20
[   14.261850]  [<c034cdf6>] ? device_add+0x26/0x3f0
[   14.261850]  [<c034d1d2>] ? device_register+0x12/0x20
[   14.261850]  [<c034d28a>] ? device_create_vargs+0xaa/0xc0
[   14.261850]  [<c034d2c8>] ? device_create+0x28/0x30
[   14.261850]  [<e09cd414>] ? snd_register_device_for_dev+0xd4/0x150 [snd]
[   14.261850]  [<e0a3b000>] ? alsa_seq_init+0x0/0x60 [snd_seq]
[   14.261850]  [<e0a3b0d0>] ? snd_sequencer_device_init+0x4f/0x71 [snd_seq]
[   14.261850]  [<e0a3b02f>] ? alsa_seq_init+0x2f/0x60 [snd_seq]
[   14.261850]  [<c010111e>] ? _stext+0x2e/0x170
[   14.261850]  [<c020c015>] ? sysfs_addrm_finish+0x15/0xf0
[   14.261850]  [<c020b7e3>] ? sysfs_add_one+0x13/0x50
[   14.261850]  [<c020b85f>] ? sysfs_addrm_start+0x3f/0xa0
[   14.261850]  [<c01a908c>] ? __vunmap+0x9c/0xe0
[   14.261850]  [<c01a908c>] ? __vunmap+0x9c/0xe0
[   14.261850]  [<c01a9121>] ? vfree+0x21/0x30
[   14.261850]  [<c0163f3a>] ? load_module+0x103a/0x1040
[   14.261850]  [<c0163fc8>] ? sys_init_module+0x88/0x1b0
[   14.261850]  [<c0103f6b>] ? sysenter_do_call+0x12/0x2f
[   14.261850]  [<c0500000>] ? relay_hotcpu_callback+0x6d/0xbd
[   14.261850] Code: 75 f8 8b 7d fc 89 ec 5d c3 8b 41 08 85 c0 78 ca 8b 01 8b 51 0c 89 04 93 89 19 eb d4 f6 c4 60 74 0a 89 d0 e8 99 f0 fd ff 90 eb d1 <0f> 0b eb fe 66 90 55 83 e8 60 89 e5 e8 35 ff ff ff 5d c3 8d 76 
[   14.261850] EIP: [<c01b838a>] kfree+0xba/0xc0 SS:ESP 0068:dd901cdc
[   14.265973] ---[ end trace c3308ad2edfa0be6 ]---