[ 5322.799894] WARNING: CPU: 1 PID: 7280 at /build/buildd/linux-3.13.0/kernel/irq/manage.c:1256 __free_irq+0xa3/0x1e0() [ 5322.799895] Trying to free already-free IRQ 20 [ 5322.799920] Modules linked in: ctr ccm bnep rfcomm bluetooth binfmt_misc pn544_mei mei_phy pn544 hci nfc ppdev dell_wmi sparse_keymap dell_laptop dcdbas intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse uvcvideo serio_raw videobuf2_vmalloc joydev videobuf2_memops videobuf2_core videodev snd_hda_codec_realtek arc4 snd_hda_codec_hdmi ath9k snd_hda_intel ath9k_common snd_hda_codec ath9k_hw snd_hwdep ath mac80211 snd_seq_midi snd_pcm snd_seq_midi_event cfg80211 snd_page_alloc lpc_ich snd_rawmidi mei_me mei snd_seq snd_seq_device snd_timer snd parport_pc soundcore mac_hid lp parport hid_generic usbhid hid ahci libahci sdhci_pci sdhci e1000e i915 ptp pps_core wmi i2c_algo_bit drm_kms_helper video drm [ 5322.799923] CPU: 1 PID: 7280 Comm: kworker/u8:15 Not tainted 3.13.0-19-generic #40-Ubuntu [ 5322.799924] Hardware name: Dell Inc. Latitude E7440/ , BIOS A07 01/02/2014 [ 5322.799927] Workqueue: events_unbound async_run_entry_fn [ 5322.799929] 0000000000000009 ffff880117597ba8 ffffffff81711075 ffff880117597bf0 [ 5322.799930] ffff880117597be0 ffffffff810662cd ffff88003633e800 ffff880035510000 [ 5322.799931] 0000000000000014 ffff88003633e89c ffff88003633e800 ffff880117597c40 [ 5322.799932] Call Trace: [ 5322.799935] [<ffffffff81711075>] dump_stack+0x45/0x56 [ 5322.799937] [<ffffffff810662cd>] warn_slowpath_common+0x7d/0xa0 [ 5322.799938] [<ffffffff8106633c>] warn_slowpath_fmt+0x4c/0x50 [ 5322.799939] [<ffffffff810be813>] __free_irq+0xa3/0x1e0 [ 5322.799940] [<ffffffff810be9e9>] free_irq+0x49/0xb0 [ 5322.799947] [<ffffffffa01856ad>] e1000_free_irq+0x6d/0x80 [e1000e] [ 5322.799952] [<ffffffffa0190987>] __e1000_shutdown+0x97/0x8a0 [e1000e] [ 5322.799956] [<ffffffffa01911e7>] e1000_suspend+0x17/0x20 [e1000e] [ 5322.799959] [<ffffffff8139ee9c>] pci_pm_suspend+0x6c/0x150 [ 5322.799960] [<ffffffff8139ee30>] ? pci_pm_freeze+0xe0/0xe0 [ 5322.799963] [<ffffffff814929b9>] dpm_run_callback+0x49/0xa0 [ 5322.799964] [<ffffffff81492dbb>] __device_suspend+0xdb/0x280 [ 5322.799966] [<ffffffff8109922a>] ? try_to_wake_up+0x1fa/0x2c0 [ 5322.799967] [<ffffffff81492f7f>] async_suspend+0x1f/0xa0 [ 5322.799969] [<ffffffff810900d7>] async_run_entry_fn+0x37/0x130 [ 5322.799971] [<ffffffff810824a2>] process_one_work+0x182/0x450 [ 5322.799972] [<ffffffff81083241>] worker_thread+0x121/0x410 [ 5322.799974] [<ffffffff81083120>] ? rescuer_thread+0x3e0/0x3e0 [ 5322.799975] [<ffffffff81089ed2>] kthread+0xd2/0xf0 [ 5322.799976] [<ffffffff81089e00>] ? kthread_create_on_node+0x190/0x190 [ 5322.799978] [<ffffffff817219bc>] ret_from_fork+0x7c/0xb0 [ 5322.799979] [<ffffffff81089e00>] ? kthread_create_on_node+0x190/0x190
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1297421 Title: Sound stops working occasionally on Latitude E7440 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1297421/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs