I have the same cpu freezing issue, unfortunately it happens (apparently) at random times.
Log output: May 4 16:49:26 user-laptop kernel: [ 457.416004] Modules linked in: hidp binfmt_misc ppdev bridge stp bnep input_polldev lp parport snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy ecb snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event uvcvideo iwlagn iwlcore snd_seq compat_ioctl32 leds_hp_disk snd_timer snd_seq_device led_class mac80211 psmouse videodev iTCO_wdt video joydev snd soundcore serio_raw v4l1_compat pcspkr iTCO_vendor_support output sdhci_pci sdhci intel_agp snd_page_alloc cfg80211 lis3lv02d btusb nvidia(P) ohci1394 ieee1394 r8169 mii fbcon tileblit font bitblit softcursor May 4 16:49:26 user-laptop kernel: [ 457.416004] CPU 0: May 4 16:49:26 user-laptop kernel: [ 457.416004] Modules linked in: hidp binfmt_misc ppdev bridge stp bnep input_polldev lp parport snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy ecb snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event uvcvideo iwlagn iwlcore snd_seq compat_ioctl32 leds_hp_disk snd_timer snd_seq_device led_class mac80211 psmouse videodev iTCO_wdt video joydev snd soundcore serio_raw v4l1_compat pcspkr iTCO_vendor_support output sdhci_pci sdhci intel_agp snd_page_alloc cfg80211 lis3lv02d btusb nvidia(P) ohci1394 ieee1394 r8169 mii fbcon tileblit font bitblit softcursor May 4 16:49:26 user-laptop kernel: [ 457.416004] Pid: 3156, comm: cupsd Tainted: P 2.6.28-12-generic #43-Ubuntu May 4 16:49:26 user-laptop kernel: [ 457.416004] RIP: 0010:[<ffffffff8041fa98>] [<ffffffff8041fa98>] __read_lock_failed+0x8/0x20 May 4 16:49:26 user-laptop kernel: [ 457.416004] RSP: 0018:ffff88013d4fbe20 EFLAGS: 00000297 May 4 16:49:26 user-laptop kernel: [ 457.416004] RAX: ffff880138d80000 RBX: ffff88013d4fbe28 RCX: ffff88013d4fbeb8 May 4 16:49:26 user-laptop kernel: [ 457.416004] RDX: 0000000000000010 RSI: ffff8801379f0000 RDI: ffff880138d1df04 May 4 16:49:26 user-laptop kernel: [ 457.416004] RBP: ffff88013d4fbe28 R08: 0000000000000015 R09: 7efefefefefefeff May 4 16:49:26 user-laptop kernel: [ 457.416004] R10: 8101010101010100 R11: 0000000000000206 R12: 0000000000000246 May 4 16:49:26 user-laptop kernel: [ 457.416004] R13: ffffe200043553a0 R14: ffff880133cec600 R15: ffff8801274d8000 May 4 16:49:26 user-laptop kernel: [ 457.416004] FS: 00007fa059ebc710(0000) GS:ffffffff80a9a000(0000) knlGS:0000000000000000 May 4 16:49:26 user-laptop kernel: [ 457.416004] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 May 4 16:49:26 user-laptop kernel: [ 457.416004] CR2: 000000007de009a0 CR3: 000000013cdab000 CR4: 00000000000006a0 May 4 16:49:26 user-laptop kernel: [ 457.416004] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 May 4 16:49:26 user-laptop kernel: [ 457.416004] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 May 4 16:49:26 user-laptop kernel: [ 457.416004] Call Trace: May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff80699cff>] ? _read_lock+0xf/0x20 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff802f39e4>] do_path_lookup+0x94/0x200 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff802f14b5>] ? getname+0x45/0xb0 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff802f3cfb>] user_path_parent+0x6b/0x90 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff802f3fbe>] do_unlinkat+0x2e/0x1d0 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff8031a1d0>] ? ep_ptable_queue_proc+0x0/0xb0 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff80319fcf>] ? sys_epoll_ctl+0xaf/0x2b0 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff802f5ea4>] ? do_fcntl+0x144/0x290 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff802f4171>] sys_unlink+0x11/0x20 May 4 16:49:26 user-laptop kernel: [ 457.416004] [<ffffffff8021253a>] system_call_fastpath+0x16/0x1b -- BUG: soft lockup - CPU#0 stuck for 61s! [cupsd:3709] https://bugs.launchpad.net/bugs/363368 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
