------------[ cut here ]------------ WARNING: at /build/buildd/linux-2.6.35/kernel/trace/ring_buffer.c:2017 rb_add_time_stamp+0x70/0x220() Hardware name: Aspire 5315 Delta way too big! 18446743919067443953 ts=18446744049932700253 write stamp = 130865256300 Modules linked in: parport_pc ppdev snd_hda_codec_realtek vga16fb vgastate arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi i915 drm_kms_helper snd_rawmidi snd_seq_midi_event ath5k lp drm snd_seq snd_timer snd_seq_device joydev parport mac80211 i2c_algo_bit intel_agp ath video snd output agpgart soundcore cfg80211 snd_page_alloc psmouse led_class serio_raw ahci libahci tg3 Pid: 1003, comm: NetworkManager Not tainted 2.6.35-8-generic #13-Ubuntu Call Trace: [] warn_slowpath_common+0x72/0xa0 [] ? rb_add_time_stamp+0x70/0x220 [] ? rb_add_time_stamp+0x70/0x220 [] warn_slowpath_fmt+0x33/0x40 [] rb_add_time_stamp+0x70/0x220 [] rb_reserve_next_event+0x13a/0x1e0 [] ? path_put+0x25/0x30 [] ring_buffer_lock_reserve+0x80/0x140 [] trace_buffer_lock_reserve+0x1a/0x50 [] trace_current_buffer_lock_reserve+0x22/0x30 [] ftrace_raw_event_do_sys_open+0x54/0xd0 [] do_sys_open+0x13d/0x160 [] ? ftrace_raw_event_do_sys_open+0x0/0xd0 [] sys_open+0x2e/0x40 [] syscall_call+0x7/0xb ---[ end trace 03cc155e8e82267d ]---