------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.38/kernel/trace/ring_buffer.c:2169 rb_reserve_next_event+0x1e4/0x200()
Hardware name: 28239KG
Delta way too big! 18446744048813917327 ts=18446744062054836048 write stamp = 13240918721
Modules linked in: snd_hrtimer binfmt_misc parport_pc ppdev joydev snd_hda_codec_conexant rfcomm arc4 sco snd_hda_intel snd_hda_codec snd_hwdep bnep l2cap snd_pcm iwlagn uvcvideo thinkpad_acpi videodev snd_seq_midi snd_rawmidi snd_seq_midi_event iwlcore snd_seq snd_timer v4l2_compat_ioctl32 i915 snd_seq_device mac80211 btusb bluetooth tpm_tis cfg80211 snd psmouse serio_raw nvram tpm tpm_bios drm_kms_helper soundcore snd_page_alloc drm i2c_algo_bit video lp parport usbhid hid ahci libahci e1000e
Pid: 1841, comm: acpid Not tainted 2.6.38-7-generic #39-Ubuntu
Call Trace:
 [<ffffffff8106573f>] ? warn_slowpath_common+0x7f/0xc0
 [<ffffffff81065836>] ? warn_slowpath_fmt+0x46/0x50
 [<ffffffff81013a55>] ? native_sched_clock+0x15/0x70
 [<ffffffff810e2724>] ? rb_reserve_next_event+0x1e4/0x200
 [<ffffffff810e27b9>] ? ring_buffer_lock_reserve+0x79/0xe0
 [<ffffffff810e823c>] ? trace_buffer_lock_reserve+0x2c/0x70
 [<ffffffff810e8356>] ? trace_current_buffer_lock_reserve+0x16/0x20
 [<ffffffff811618a3>] ? ftrace_raw_event_open_exec+0x63/0xe0
 [<ffffffff81169e7e>] ? open_exec+0xfe/0x120
 [<ffffffff8116b02b>] ? do_execve+0xab/0x2d0
 [<ffffffff810151ea>] ? sys_execve+0x4a/0x80
 [<ffffffff8100c45c>] ? stub_execve+0x6c/0xc0
---[ end trace 12aaf3b5cd9896d5 ]---