Hi, I have a USB audio class 2 device which is an effects processor called Fractal Audio Systems Axe-Fx II. It has the ability to work as a midi and also as an audio interface (capture and playback). The device seems to register well, audio and midi functions work. When plugged in /var/log/messages shows: 2014-05-18T22:47:23.372829+02:00 xxx kernel: [10784.638945] usb 2-1.5: new high-speed USB device number 19 using ehci-pci 2014-05-18T22:47:23.459798+02:00 xxx kernel: [10784.725889] usb 2-1.5: New USB device found, idVendor=2466, idProduct=8003 2014-05-18T22:47:23.459809+02:00 xxx kernel: [10784.725893] usb 2-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 2014-05-18T22:47:23.459810+02:00 xxx kernel: [10784.725895] usb 2-1.5: Product: AXE-FX II 2014-05-18T22:47:23.459811+02:00 xxx kernel: [10784.725896] usb 2-1.5: Manufacturer: Fractal Audio Systems 2014-05-18T22:47:23.468655+02:00 xxx mtp-probe: checking bus 2, device 19: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.5" 2014-05-18T22:47:23.469360+02:00 xxx mtp-probe: bus: 2, device: 19 was not an MTP device When I disconnect the device the following warnings appear in messages: 2014-05-18T22:49:08.666851+02:00 xxx kernel: [10889.923635] usb 2-1.5: USB disconnect, device number 19 2014-05-18T22:49:08.666868+02:00 xxx kernel: [10889.923880] ------------[ cut here ]------------ 2014-05-18T22:49:08.666870+02:00 xxx kernel: [10889.923890] WARNING: CPU: 3 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.666872+02:00 xxx kernel: [10889.923893] sysfs group ffffffff81ea3c40 not found for kobject 'midi3' 2014-05-18T22:49:08.666873+02:00 xxx kernel: [10889.923895] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.666877+02:00 xxx kernel: [10889.924003] CPU: 3 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.666878+02:00 xxx kernel: [10889.924006] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.666880+02:00 xxx kernel: [10889.924008] 0000000000000009 ffffffff81602401 ffff88031f705a98 ffffffff810582c7 2014-05-18T22:49:08.666881+02:00 xxx kernel: [10889.924013] ffff8802344eec00 ffff88031f705ae8 0000000000000002 ffff8802f03f8000 2014-05-18T22:49:08.666882+02:00 xxx kernel: [10889.924018] ffff880274821f00 ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.666883+02:00 xxx kernel: [10889.924022] Call Trace: 2014-05-18T22:49:08.666885+02:00 xxx kernel: [10889.924039] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.666886+02:00 xxx kernel: [10889.924046] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.666887+02:00 xxx kernel: [10889.924051] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.666888+02:00 xxx kernel: [10889.924059] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.666889+02:00 xxx kernel: [10889.924066] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.666891+02:00 xxx kernel: [10889.924071] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.666892+02:00 xxx kernel: [10889.924077] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.666893+02:00 xxx kernel: [10889.924083] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.666894+02:00 xxx kernel: [10889.924088] [<ffffffff8140979a>] device_destroy+0x3a/0x40 2014-05-18T22:49:08.666896+02:00 xxx kernel: [10889.924098] [<ffffffffa08f4324>] sound_remove_unit+0x54/0x90 [soundcore] 2014-05-18T22:49:08.666897+02:00 xxx kernel: [10889.924114] [<ffffffffa0954889>] snd_unregister_oss_device+0x59/0xf0 [snd] 2014-05-18T22:49:08.666898+02:00 xxx kernel: [10889.924141] [<ffffffffa0b69c4f>] snd_rawmidi_dev_disconnect+0x11f/0x160 [snd_rawmidi] 2014-05-18T22:49:08.666899+02:00 xxx kernel: [10889.924160] [<ffffffffa0954112>] snd_device_disconnect+0x62/0xf0 [snd] 2014-05-18T22:49:08.666900+02:00 xxx kernel: [10889.924189] [<ffffffffa095424c>] snd_device_disconnect_all+0x3c/0x80 [snd] 2014-05-18T22:49:08.666902+02:00 xxx kernel: [10889.924215] [<ffffffffa094d877>] snd_card_disconnect+0x137/0x1d0 [snd] 2014-05-18T22:49:08.666903+02:00 xxx kernel: [10889.924229] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.666904+02:00 xxx kernel: [10889.924240] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.666905+02:00 xxx kernel: [10889.924248] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.666907+02:00 xxx kernel: [10889.924254] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.666908+02:00 xxx kernel: [10889.924260] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.666909+02:00 xxx kernel: [10889.924266] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.666910+02:00 xxx kernel: [10889.924272] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.666911+02:00 xxx kernel: [10889.924278] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.666913+02:00 xxx kernel: [10889.924284] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.666914+02:00 xxx kernel: [10889.924290] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.666915+02:00 xxx kernel: [10889.924297] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.666916+02:00 xxx kernel: [10889.924303] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.666918+02:00 xxx kernel: [10889.924310] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.666919+02:00 xxx kernel: [10889.924316] ---[ end trace 5541d8d4e3c3d8c2 ]--- 2014-05-18T22:49:08.669723+02:00 xxx kernel: [10889.926318] ------------[ cut here ]------------ 2014-05-18T22:49:08.669734+02:00 xxx kernel: [10889.926328] WARNING: CPU: 0 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.669736+02:00 xxx kernel: [10889.926331] sysfs group ffffffff81ea3c40 not found for kobject 'dmmidi3' 2014-05-18T22:49:08.669738+02:00 xxx kernel: [10889.926333] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.669739+02:00 xxx kernel: [10889.926455] CPU: 0 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.669741+02:00 xxx kernel: [10889.926458] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.669742+02:00 xxx kernel: [10889.926460] 0000000000000009 ffffffff81602401 ffff88031f705a98 ffffffff810582c7 2014-05-18T22:49:08.669743+02:00 xxx kernel: [10889.926465] ffff8801ed736400 ffff88031f705ae8 0000000000000002 ffff8802f03f8000 2014-05-18T22:49:08.669744+02:00 xxx kernel: [10889.926470] ffff880274821f00 ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.669745+02:00 xxx kernel: [10889.926474] Call Trace: 2014-05-18T22:49:08.669746+02:00 xxx kernel: [10889.926488] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.669748+02:00 xxx kernel: [10889.926494] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.669749+02:00 xxx kernel: [10889.926500] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.669750+02:00 xxx kernel: [10889.926506] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.669751+02:00 xxx kernel: [10889.926512] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.669752+02:00 xxx kernel: [10889.926518] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.669753+02:00 xxx kernel: [10889.926524] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.669754+02:00 xxx kernel: [10889.926529] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.669755+02:00 xxx kernel: [10889.926535] [<ffffffff8140979a>] device_destroy+0x3a/0x40 2014-05-18T22:49:08.669756+02:00 xxx kernel: [10889.926544] [<ffffffffa08f4324>] sound_remove_unit+0x54/0x90 [soundcore] 2014-05-18T22:49:08.669758+02:00 xxx kernel: [10889.926559] [<ffffffffa09548e0>] snd_unregister_oss_device+0xb0/0xf0 [snd] 2014-05-18T22:49:08.669759+02:00 xxx kernel: [10889.926586] [<ffffffffa0b69c4f>] snd_rawmidi_dev_disconnect+0x11f/0x160 [snd_rawmidi] 2014-05-18T22:49:08.669760+02:00 xxx kernel: [10889.926603] [<ffffffffa0954112>] snd_device_disconnect+0x62/0xf0 [snd] 2014-05-18T22:49:08.669761+02:00 xxx kernel: [10889.926632] [<ffffffffa095424c>] snd_device_disconnect_all+0x3c/0x80 [snd] 2014-05-18T22:49:08.669762+02:00 xxx kernel: [10889.926658] [<ffffffffa094d877>] snd_card_disconnect+0x137/0x1d0 [snd] 2014-05-18T22:49:08.669763+02:00 xxx kernel: [10889.926671] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.669764+02:00 xxx kernel: [10889.926681] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.669765+02:00 xxx kernel: [10889.926688] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.669777+02:00 xxx kernel: [10889.926694] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.669778+02:00 xxx kernel: [10889.926700] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.669779+02:00 xxx kernel: [10889.926706] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.669780+02:00 xxx kernel: [10889.926712] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.669781+02:00 xxx kernel: [10889.926718] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.669783+02:00 xxx kernel: [10889.926724] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.669784+02:00 xxx kernel: [10889.926729] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.669785+02:00 xxx kernel: [10889.926736] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.669786+02:00 xxx kernel: [10889.926742] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.669787+02:00 xxx kernel: [10889.926749] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.669788+02:00 xxx kernel: [10889.926755] ---[ end trace 5541d8d4e3c3d8c3 ]--- 2014-05-18T22:49:08.670877+02:00 xxx kernel: [10889.927494] ------------[ cut here ]------------ 2014-05-18T22:49:08.670884+02:00 xxx kernel: [10889.927501] WARNING: CPU: 3 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.670885+02:00 xxx kernel: [10889.927506] sysfs group ffffffff81ea3c40 not found for kobject 'midiC3D0' 2014-05-18T22:49:08.670887+02:00 xxx kernel: [10889.927508] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.670888+02:00 xxx kernel: [10889.927599] CPU: 3 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.670890+02:00 xxx kernel: [10889.927600] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.670891+02:00 xxx kernel: [10889.927601] 0000000000000009 ffffffff81602401 ffff88031f705ab8 ffffffff810582c7 2014-05-18T22:49:08.670892+02:00 xxx kernel: [10889.927616] ffff8802c785ec00 ffff88031f705b08 0000000000000000 ffff8802f03f8000 2014-05-18T22:49:08.670893+02:00 xxx kernel: [10889.927623] ffff880274821f00 ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.670894+02:00 xxx kernel: [10889.927630] Call Trace: 2014-05-18T22:49:08.670895+02:00 xxx kernel: [10889.927640] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.670896+02:00 xxx kernel: [10889.927649] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.670897+02:00 xxx kernel: [10889.927654] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.670898+02:00 xxx kernel: [10889.927658] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.670899+02:00 xxx kernel: [10889.927664] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.670900+02:00 xxx kernel: [10889.927669] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.670901+02:00 xxx kernel: [10889.927677] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.670903+02:00 xxx kernel: [10889.927683] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.670904+02:00 xxx kernel: [10889.927686] [<ffffffff8140979a>] device_destroy+0x3a/0x40 2014-05-18T22:49:08.670905+02:00 xxx kernel: [10889.927696] [<ffffffffa094d2d8>] snd_unregister_device+0x48/0x90 [snd] 2014-05-18T22:49:08.670906+02:00 xxx kernel: [10889.927708] [<ffffffffa0b69c24>] snd_rawmidi_dev_disconnect+0xf4/0x160 [snd_rawmidi] 2014-05-18T22:49:08.670907+02:00 xxx kernel: [10889.927723] [<ffffffffa0954112>] snd_device_disconnect+0x62/0xf0 [snd] 2014-05-18T22:49:08.670908+02:00 xxx kernel: [10889.927748] [<ffffffffa095424c>] snd_device_disconnect_all+0x3c/0x80 [snd] 2014-05-18T22:49:08.670909+02:00 xxx kernel: [10889.927770] [<ffffffffa094d877>] snd_card_disconnect+0x137/0x1d0 [snd] 2014-05-18T22:49:08.670910+02:00 xxx kernel: [10889.927780] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.670911+02:00 xxx kernel: [10889.927788] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.670912+02:00 xxx kernel: [10889.927793] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.670913+02:00 xxx kernel: [10889.927797] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.670914+02:00 xxx kernel: [10889.927802] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.670915+02:00 xxx kernel: [10889.927806] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.670916+02:00 xxx kernel: [10889.927810] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.670917+02:00 xxx kernel: [10889.927814] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.670918+02:00 xxx kernel: [10889.927818] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.670919+02:00 xxx kernel: [10889.927822] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.670920+02:00 xxx kernel: [10889.927826] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.670922+02:00 xxx kernel: [10889.927830] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.670923+02:00 xxx kernel: [10889.927835] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.670924+02:00 xxx kernel: [10889.927839] ---[ end trace 5541d8d4e3c3d8c4 ]--- 2014-05-18T22:49:08.670932+02:00 xxx kernel: [10889.928548] ------------[ cut here ]------------ 2014-05-18T22:49:08.670933+02:00 xxx kernel: [10889.928555] WARNING: CPU: 3 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.670935+02:00 xxx kernel: [10889.928558] sysfs group ffffffff81ea3c40 not found for kobject 'pcmC3D0p' 2014-05-18T22:49:08.672691+02:00 xxx kernel: [10889.928560] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.672698+02:00 xxx kernel: [10889.928654] CPU: 3 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.672700+02:00 xxx kernel: [10889.928657] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.672701+02:00 xxx kernel: [10889.928659] 0000000000000009 ffffffff81602401 ffff88031f705ab8 ffffffff810582c7 2014-05-18T22:49:08.672702+02:00 xxx kernel: [10889.928663] ffff880107a85c00 ffff88031f705b08 0000000000000000 ffff8802f03f8000 2014-05-18T22:49:08.672703+02:00 xxx kernel: [10889.928668] 0000000000000100 ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.672704+02:00 xxx kernel: [10889.928672] Call Trace: 2014-05-18T22:49:08.672705+02:00 xxx kernel: [10889.928684] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.672706+02:00 xxx kernel: [10889.928689] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.672707+02:00 xxx kernel: [10889.928696] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.672708+02:00 xxx kernel: [10889.928701] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.672709+02:00 xxx kernel: [10889.928706] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.672710+02:00 xxx kernel: [10889.928711] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.672711+02:00 xxx kernel: [10889.928716] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.672713+02:00 xxx kernel: [10889.928721] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.672714+02:00 xxx kernel: [10889.928726] [<ffffffff8140979a>] device_destroy+0x3a/0x40 2014-05-18T22:49:08.672715+02:00 xxx kernel: [10889.928735] [<ffffffffa094d2d8>] snd_unregister_device+0x48/0x90 [snd] 2014-05-18T22:49:08.672716+02:00 xxx kernel: [10889.928749] [<ffffffffa0a96d81>] snd_pcm_dev_disconnect+0x171/0x1f0 [snd_pcm] 2014-05-18T22:49:08.672717+02:00 xxx kernel: [10889.928763] [<ffffffffa0954112>] snd_device_disconnect+0x62/0xf0 [snd] 2014-05-18T22:49:08.672718+02:00 xxx kernel: [10889.928789] [<ffffffffa095424c>] snd_device_disconnect_all+0x3c/0x80 [snd] 2014-05-18T22:49:08.672719+02:00 xxx kernel: [10889.928812] [<ffffffffa094d877>] snd_card_disconnect+0x137/0x1d0 [snd] 2014-05-18T22:49:08.672720+02:00 xxx kernel: [10889.928825] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.672721+02:00 xxx kernel: [10889.928833] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.672722+02:00 xxx kernel: [10889.928838] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.672723+02:00 xxx kernel: [10889.928843] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.672724+02:00 xxx kernel: [10889.928856] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.672725+02:00 xxx kernel: [10889.928859] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.672726+02:00 xxx kernel: [10889.928864] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.672727+02:00 xxx kernel: [10889.928867] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.672728+02:00 xxx kernel: [10889.928871] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.672729+02:00 xxx kernel: [10889.928875] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.672730+02:00 xxx kernel: [10889.928880] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.672731+02:00 xxx kernel: [10889.928884] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.672733+02:00 xxx kernel: [10889.928892] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.672734+02:00 xxx kernel: [10889.928896] ---[ end trace 5541d8d4e3c3d8c5 ]--- 2014-05-18T22:49:08.672735+02:00 xxx kernel: [10889.928944] ------------[ cut here ]------------ 2014-05-18T22:49:08.672736+02:00 xxx kernel: [10889.928948] WARNING: CPU: 3 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.672737+02:00 xxx kernel: [10889.928951] sysfs group ffffffff81ea3c40 not found for kobject 'pcmC3D0c' 2014-05-18T22:49:08.672738+02:00 xxx kernel: [10889.928953] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.672740+02:00 xxx kernel: [10889.929034] CPU: 3 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.672741+02:00 xxx kernel: [10889.929035] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.672743+02:00 xxx kernel: [10889.929044] 0000000000000009 ffffffff81602401 ffff88031f705ab8 ffffffff810582c7 2014-05-18T22:49:08.672744+02:00 xxx kernel: [10889.929045] ffff88031dc76400 ffff88031f705b08 0000000000000000 ffff8802f03f8000 2014-05-18T22:49:08.672745+02:00 xxx kernel: [10889.929052] 0000000000000100 ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.672746+02:00 xxx kernel: [10889.929055] Call Trace: 2014-05-18T22:49:08.672747+02:00 xxx kernel: [10889.929062] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.672748+02:00 xxx kernel: [10889.929066] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.672749+02:00 xxx kernel: [10889.929070] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.672750+02:00 xxx kernel: [10889.929074] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.672751+02:00 xxx kernel: [10889.929078] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.672752+02:00 xxx kernel: [10889.929082] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.672753+02:00 xxx kernel: [10889.929085] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.672755+02:00 xxx kernel: [10889.929089] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.672756+02:00 xxx kernel: [10889.929094] [<ffffffff8140979a>] device_destroy+0x3a/0x40 2014-05-18T22:49:08.672757+02:00 xxx kernel: [10889.929097] [<ffffffffa094d2d8>] snd_unregister_device+0x48/0x90 [snd] 2014-05-18T22:49:08.672758+02:00 xxx kernel: [10889.929106] [<ffffffffa0a96db6>] snd_pcm_dev_disconnect+0x1a6/0x1f0 [snd_pcm] 2014-05-18T22:49:08.672759+02:00 xxx kernel: [10889.929116] [<ffffffffa0954112>] snd_device_disconnect+0x62/0xf0 [snd] 2014-05-18T22:49:08.672760+02:00 xxx kernel: [10889.929141] [<ffffffffa095424c>] snd_device_disconnect_all+0x3c/0x80 [snd] 2014-05-18T22:49:08.672761+02:00 xxx kernel: [10889.929165] [<ffffffffa094d877>] snd_card_disconnect+0x137/0x1d0 [snd] 2014-05-18T22:49:08.672762+02:00 xxx kernel: [10889.929175] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.672763+02:00 xxx kernel: [10889.929186] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.672775+02:00 xxx kernel: [10889.929191] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.672776+02:00 xxx kernel: [10889.929196] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.672778+02:00 xxx kernel: [10889.929200] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.672779+02:00 xxx kernel: [10889.929204] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.672780+02:00 xxx kernel: [10889.929208] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.672781+02:00 xxx kernel: [10889.929212] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.672782+02:00 xxx kernel: [10889.929217] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.672783+02:00 xxx kernel: [10889.929221] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.672784+02:00 xxx kernel: [10889.929226] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.672785+02:00 xxx kernel: [10889.929229] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.672786+02:00 xxx kernel: [10889.929233] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.672787+02:00 xxx kernel: [10889.929240] ---[ end trace 5541d8d4e3c3d8c6 ]--- 2014-05-18T22:49:08.672788+02:00 xxx kernel: [10889.929283] ------------[ cut here ]------------ 2014-05-18T22:49:08.672790+02:00 xxx kernel: [10889.929287] WARNING: CPU: 3 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.672791+02:00 xxx kernel: [10889.929288] sysfs group ffffffff81ea3c40 not found for kobject 'controlC3' 2014-05-18T22:49:08.672993+02:00 xxx kernel: [10889.929289] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.672995+02:00 xxx kernel: [10889.929355] CPU: 3 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.672996+02:00 xxx kernel: [10889.929356] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.672997+02:00 xxx kernel: [10889.929357] 0000000000000009 ffffffff81602401 ffff88031f705ac0 ffffffff810582c7 2014-05-18T22:49:08.672999+02:00 xxx kernel: [10889.929361] ffff8802f0158800 ffff88031f705b10 00000000ffffffff ffff8802f03f8000 2014-05-18T22:49:08.673000+02:00 xxx kernel: [10889.929364] 00000000fffffffa ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.673001+02:00 xxx kernel: [10889.929367] Call Trace: 2014-05-18T22:49:08.673002+02:00 xxx kernel: [10889.929373] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.673003+02:00 xxx kernel: [10889.929378] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.673004+02:00 xxx kernel: [10889.929381] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.673005+02:00 xxx kernel: [10889.929385] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.673006+02:00 xxx kernel: [10889.929389] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.673007+02:00 xxx kernel: [10889.929393] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.673008+02:00 xxx kernel: [10889.929397] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.673009+02:00 xxx kernel: [10889.929400] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.673010+02:00 xxx kernel: [10889.929404] [<ffffffff8140979a>] device_destroy+0x3a/0x40 2014-05-18T22:49:08.673011+02:00 xxx kernel: [10889.929408] [<ffffffffa094d2d8>] snd_unregister_device+0x48/0x90 [snd] 2014-05-18T22:49:08.673012+02:00 xxx kernel: [10889.929417] [<ffffffffa0950587>] snd_ctl_dev_disconnect+0x97/0xe0 [snd] 2014-05-18T22:49:08.673014+02:00 xxx kernel: [10889.929451] [<ffffffffa0954112>] snd_device_disconnect+0x62/0xf0 [snd] 2014-05-18T22:49:08.673015+02:00 xxx kernel: [10889.929476] [<ffffffffa095424c>] snd_device_disconnect_all+0x3c/0x80 [snd] 2014-05-18T22:49:08.673016+02:00 xxx kernel: [10889.929501] [<ffffffffa094d877>] snd_card_disconnect+0x137/0x1d0 [snd] 2014-05-18T22:49:08.673017+02:00 xxx kernel: [10889.929511] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.673018+02:00 xxx kernel: [10889.929523] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.673019+02:00 xxx kernel: [10889.929528] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.673020+02:00 xxx kernel: [10889.929533] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.673021+02:00 xxx kernel: [10889.929537] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.673022+02:00 xxx kernel: [10889.929541] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.673023+02:00 xxx kernel: [10889.929545] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.673024+02:00 xxx kernel: [10889.929549] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.673025+02:00 xxx kernel: [10889.929553] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.673026+02:00 xxx kernel: [10889.929557] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.673027+02:00 xxx kernel: [10889.929562] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.673028+02:00 xxx kernel: [10889.929565] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.673030+02:00 xxx kernel: [10889.929569] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.673031+02:00 xxx kernel: [10889.929576] ---[ end trace 5541d8d4e3c3d8c7 ]--- 2014-05-18T22:49:08.673032+02:00 xxx kernel: [10889.929635] ------------[ cut here ]------------ 2014-05-18T22:49:08.673033+02:00 xxx kernel: [10889.929639] WARNING: CPU: 3 PID: 66 at /home/abuild/rpmbuild/BUILD/kernel-desktop-3.14.4/linux-3.14/fs/sysfs/group.c:216 device_del+0x40/0x1b0() 2014-05-18T22:49:08.673034+02:00 xxx kernel: [10889.929640] sysfs group ffffffff81ea3c40 not found for kobject 'card3' 2014-05-18T22:49:08.673035+02:00 xxx kernel: [10889.929641] Modules linked in: nfnetlink_log nfnetlink usbmon vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse rfcomm xt_tcpudp xt_pkttype xt_LOG xt_limit arc4 ecb md4 md5 nls_utf8 cifs fscache dns_resolver af_packet ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables f71882fg bnep ata_generic snd_usb_audio snd_usbmidi_lib snd_rawmidi joydev btusb bluetooth rfkill 6lowpan_iphc usb_storage pl2303 usbserial snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep gpio_ich iTCO_wdt iTCO_vendor_support snd_pcm mxm_wmi snd_seq coretemp kvm_intel kvm crc32c_intel i7core_edac pcspkr snd_timer snd_seq_device serio_raw edac_core i2c_i801 sr_mod cdrom lpc_ich mfd_core pata_jmicron firewire_ohci firewire_core snd crc_itu_t r8169 mii soundcore tpm_infineon tpm_tis wmi tpm shpchp acpi_cpufreq fglrx(PO) amd_iommu_v2 button sg dm_mod hid_logitech_dj processor scsi_dh_hp_sw scsi_dh_alua scsi_dh_emc scsi_dh_rdac scsi_dh [last unloaded: vboxdrv] 2014-05-18T22:49:08.673037+02:00 xxx kernel: [10889.929707] CPU: 3 PID: 66 Comm: khubd Tainted: P W O 3.14.4-1.gbebeb6f-desktop #1 2014-05-18T22:49:08.673038+02:00 xxx kernel: [10889.929708] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7583/P55-GD65 (MS-7583) , BIOS V1.11 08/18/2011 2014-05-18T22:49:08.673039+02:00 xxx kernel: [10889.929709] 0000000000000009 ffffffff81602401 ffff88031f705b60 ffffffff810582c7 2014-05-18T22:49:08.673040+02:00 xxx kernel: [10889.929712] ffff8802f03f8000 ffff88031f705bb0 ffff8801633fd200 ffff8801085b0830 2014-05-18T22:49:08.673041+02:00 xxx kernel: [10889.929716] 0000000000000000 ffffffff8105832c ffffffff81a28fb8 0000000000000028 2014-05-18T22:49:08.673042+02:00 xxx kernel: [10889.929719] Call Trace: 2014-05-18T22:49:08.673043+02:00 xxx kernel: [10889.929725] [<ffffffff81004c65>] dump_trace+0x85/0x2f0 2014-05-18T22:49:08.673044+02:00 xxx kernel: [10889.929729] [<ffffffff81004f76>] show_stack_log_lvl+0xa6/0x190 2014-05-18T22:49:08.673045+02:00 xxx kernel: [10889.929733] [<ffffffff81006401>] show_stack+0x21/0x50 2014-05-18T22:49:08.673046+02:00 xxx kernel: [10889.929737] [<ffffffff81602401>] dump_stack+0x49/0x6a 2014-05-18T22:49:08.673047+02:00 xxx kernel: [10889.929741] [<ffffffff810582c7>] warn_slowpath_common+0x77/0x90 2014-05-18T22:49:08.673048+02:00 xxx kernel: [10889.929745] [<ffffffff8105832c>] warn_slowpath_fmt+0x4c/0x50 2014-05-18T22:49:08.673049+02:00 xxx kernel: [10889.929748] [<ffffffff81409560>] device_del+0x40/0x1b0 2014-05-18T22:49:08.673050+02:00 xxx kernel: [10889.929752] [<ffffffff814096ea>] device_unregister+0x1a/0x60 2014-05-18T22:49:08.673052+02:00 xxx kernel: [10889.929756] [<ffffffffa094d894>] snd_card_disconnect+0x154/0x1d0 [snd] 2014-05-18T22:49:08.673053+02:00 xxx kernel: [10889.929767] [<ffffffffa0c0c468>] usb_audio_disconnect+0x78/0x1a0 [snd_usb_audio] 2014-05-18T22:49:08.673054+02:00 xxx kernel: [10889.929778] [<ffffffff81471dd0>] usb_unbind_interface+0x60/0x1c0 2014-05-18T22:49:08.673055+02:00 xxx kernel: [10889.929783] [<ffffffff8140d08a>] __device_release_driver+0x7a/0xf0 2014-05-18T22:49:08.673056+02:00 xxx kernel: [10889.929788] [<ffffffff8140d11e>] device_release_driver+0x1e/0x30 2014-05-18T22:49:08.673057+02:00 xxx kernel: [10889.929792] [<ffffffff8140c9b3>] bus_remove_device+0x103/0x180 2014-05-18T22:49:08.673058+02:00 xxx kernel: [10889.929796] [<ffffffff81409636>] device_del+0x116/0x1b0 2014-05-18T22:49:08.673059+02:00 xxx kernel: [10889.929800] [<ffffffff8146f850>] usb_disable_device+0xa0/0x280 2014-05-18T22:49:08.673060+02:00 xxx kernel: [10889.929804] [<ffffffff814647cb>] usb_disconnect+0x9b/0x1b0 2014-05-18T22:49:08.673061+02:00 xxx kernel: [10889.929808] [<ffffffff8146742b>] hub_port_connect_change+0xeb/0xb20 2014-05-18T22:49:08.673063+02:00 xxx kernel: [10889.929813] [<ffffffff814682d7>] hub_events+0x477/0x9d0 2014-05-18T22:49:08.673063+02:00 xxx kernel: [10889.929818] [<ffffffff8146885d>] hub_thread+0x2d/0x150 2014-05-18T22:49:08.673065+02:00 xxx kernel: [10889.929821] [<ffffffff8107a4d6>] kthread+0xc6/0xe0 2014-05-18T22:49:08.673066+02:00 xxx kernel: [10889.929825] [<ffffffff816106fc>] ret_from_fork+0x7c/0xb0 2014-05-18T22:49:08.673067+02:00 xxx kernel: [10889.929832] ---[ end trace 5541d8d4e3c3d8c8 ]--- The device does not disappear from KMix and the audio output does not switch to the second soundcard. That only works if audio is still playing through the Axe-Fx II when disconnecting it. But then the Axe-Fx II does not reappear in KMix when it is reconnected and also the output is not switched back to this device. Other USB audio interfaces appear in KMix on connect, disappear when unplugged (switched off) and reappar when plugged in again. Any help is very much appreciated. Thanks in advance. Joachim P.S. OS is openSUSE 13.1 64bit, kernel 3.14.4. KDE is version 4.13.1, ALSA 1.0.27.2, PulseAudio 4.0. If needed I could post the output of lsusb for the device as well. ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
