I'm running Trusty since a while now, and I can say it doesn't occur so often or isn't annoying so much anymore, but according to the logs it still happens. Or is it something else?
peter@lenovo:~$ uname -a Linux lenovo 3.13.0-1-generic #16-Ubuntu SMP Tue Jan 7 19:44:06 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Jan 15 09:27:21 lenovo kernel: [ 8257.434998] ------------[ cut here ]------------ Jan 15 09:27:21 lenovo kernel: [ 8257.435006] WARNING: CPU: 3 PID: 587 at /build/buildd/linux-3.13.0/drivers/base/firmware_class.c:1089 _request_firmware+0x5d9/0xb10() Jan 15 09:27:21 lenovo kernel: [ 8257.423781] Restarting tasks ... Jan 15 09:27:21 lenovo kernel: [ 8257.435008] Modules linked in: mmc_block rtsx_pci_ms memstick rtsx_pci_sdmmc rtsx_pci ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs reiserfs pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) parport_pc ppdev rfcomm bnep snd_hda_codec_hdmi snd_hda_codec_realtek 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 joydev cryptd hid_multitouch arc4 btusb uvcvideo bluetooth usbhid videobuf2_vmalloc videobuf2_memops hid videobuf2_core videodev microcode binfmt_misc iwlmvm mac80211 snd_hda_intel snd_hda_codec wmi snd_hwdep snd_pcm ideapad_laptop iwlwifi snd_page_alloc sparse_keymap snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device psmouse snd_timer serio_raw i915 cfg80211 snd video lpc_ich drm_kms_helper drm mac_hid soundcore mei_me mei i2c_algo_bit lp parport nls_iso8859_1 btrfs xor raid6_pq libcrc3 2c ahci libahci Jan 15 09:27:21 lenovo kernel: [ 8257.435092] CPU: 3 PID: 587 Comm: kworker/u17:2 Tainted: GF W IO 3.13.0-1-generic #16-Ubuntu Jan 15 09:27:21 lenovo kernel: [ 8257.435094] Hardware name: LENOVO 20268/Cherry 3A Touch, BIOS 7CCN26WW 09/06/2013 Jan 15 09:27:21 lenovo kernel: [ 8257.435113] Workqueue: hci0 hci_power_on [bluetooth] Jan 15 09:27:21 lenovo kernel: [ 8257.435116] 0000000000000009 ffff880250917bc8 ffffffff81705c5b 0000000000000000 Jan 15 09:27:21 lenovo kernel: [ 8257.435120] ffff880250917c00 ffffffff8106463d ffff880250917d28 ffff8801a3fb9140 Jan 15 09:27:21 lenovo kernel: [ 8257.435124] ffff8802535a3540 00000000fffffff5 ffff880250917d20 ffff880250917c10 Jan 15 09:27:21 lenovo kernel: [ 8257.435128] Call Trace: Jan 15 09:27:21 lenovo kernel: [ 8257.435136] [<ffffffff81705c5b>] dump_stack+0x45/0x56 Jan 15 09:27:21 lenovo kernel: [ 8257.435141] [<ffffffff8106463d>] warn_slowpath_common+0x7d/0xa0 Jan 15 09:27:21 lenovo kernel: [ 8257.435145] [<ffffffff8106471a>] warn_slowpath_null+0x1a/0x20 Jan 15 09:27:21 lenovo kernel: [ 8257.435149] [<ffffffff81491a89>] _request_firmware+0x5d9/0xb10 Jan 15 09:27:21 lenovo kernel: [ 8257.435153] [<ffffffff81491ff4>] request_firmware+0x34/0x50 Jan 15 09:27:21 lenovo kernel: [ 8257.435160] [<ffffffffa06d4e44>] btusb_setup_intel+0x1b4/0x7f0 [btusb] Jan 15 09:27:21 lenovo kernel: [ 8257.435174] [<ffffffffa05c9be5>] hci_dev_do_open+0x275/0x760 [bluetooth] Jan 15 09:27:21 lenovo kernel: [ 8257.435184] [<ffffffffa05ca6d0>] hci_power_on+0x40/0x180 [bluetooth] Jan 15 09:27:21 lenovo kernel: [ 8257.435190] [<ffffffff81080822>] process_one_work+0x182/0x450 Jan 15 09:27:21 lenovo kernel: [ 8257.435193] [<ffffffff810815c1>] worker_thread+0x121/0x410 Jan 15 09:27:21 lenovo kernel: [ 8257.435197] [<ffffffff810814a0>] ? rescuer_thread+0x3e0/0x3e0 Jan 15 09:27:21 lenovo kernel: [ 8257.435200] [<ffffffff81088212>] kthread+0xd2/0xf0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1247681 Title: 8086:08b2 [Lenovo IdeaPad U330 Touch] IEEE 802.11 driver crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1247681/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
