http://bugzilla.novell.com/show_bug.cgi?id=573766 http://bugzilla.novell.com/show_bug.cgi?id=573766#c0 Summary: unplugging + plugging in videocam sometimes results in hung kernel Classification: openSUSE Product: openSUSE 11.2 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jnelson-suse@jamponi.net QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.6) Gecko/20091201 SUSE/3.5.6-1.1.1 Firefox/3.5.6 I was not happy to have to reboot my laptop today. I am trying to find some chat software that works with my web cam (logitech somethingorother 9000 pro). I unplugged it after the software crashed (not the kernel), plugged it back in (while watching /var/log/messages), and got this, right before it hung hard: Jan 25 20:33:25 worklaptop kernel: [609402.236425] usb 2-1: new high speed USB device using ehci_hcd and address 10 Jan 25 20:33:25 worklaptop kernel: [609402.572810] usb 2-1: New USB device found, idVendor=046d, idProduct=0809 Jan 25 20:33:25 worklaptop kernel: [609402.572821] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=2 Jan 25 20:33:25 worklaptop kernel: [609402.572829] usb 2-1: SerialNumber: 9E541A62 Jan 25 20:33:25 worklaptop kernel: [609402.573124] usb 2-1: configuration #1 chosen from 1 choice Jan 25 20:33:25 worklaptop kernel: [609402.574838] uvcvideo: Found UVC 1.00 device <unnamed> (046d:0809) Jan 25 20:33:25 worklaptop kernel: [609402.608094] input: UVC Camera (046d:0809) as /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/input/input33 Jan 25 20:33:26 worklaptop kernel: [609403.127937] ------------[ cut here ]------------ Jan 25 20:33:26 worklaptop kernel: [609403.127955] WARNING: at /usr/src/packages/BUILD/kernel-desktop-2.6.31.8/linux-2.6.31/fs/sysfs/dir.c:487 sysfs_add_one+0xde/0x180() Jan 25 20:33:26 worklaptop kernel: [609403.127963] Hardware name: 64608VU Jan 25 20:33:26 worklaptop kernel: [609403.127967] sysfs: cannot create duplicate filename '/class/sound/controlC1' Jan 25 20:33:26 worklaptop kernel: [609403.127973] Modules linked in: uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 iwlagn iwlcore mac80211 cfg80211 nls_iso8859_1 nls_cp437 vfat fat mmc_block lp usblp ppdev parport_pc parport snd_usb_audio snd_usb_lib snd_rawmidi ip6t_LOG ipt_MASQUERADE xt_pkttype xt_TCPMSS xt_tcpudp ipt_LOG xt_limit iptable_mangle xt_MARK xt_dscp iptable_nat nf_nat tun af_packet rfcomm sco bridge stp binfmt_misc llc bnep l2cap snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device vboxnetadp vboxnetflt vboxdrv ip6t_REJECT nf_conntrack_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_physdev xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq ip6table_filter ip6_tables x_tables microcode nfs lockd fscache nfs_acl auth_rpcgss sunrpc tcp_westwood fuse loop snd_hda_codec_analog arc4 ecb btusb snd_hda_intel bluetooth snd_hda_codec pcmcia snd_hwdep yenta_socket snd Jan 25 20:33:26 worklaptop kernel: _pcm sdhci_pci rsrc_nonstatic kvm_intel sr_mod sdhci kvm snd_timer ricoh_mmc wmi thinkpad_acpi mmc_core button video cdrom uinput pcmcia_core ac sg battery joydev iTCO_wdt i2c_i801 nvidia(P) e1000e snd iTCO_vendor_support pcspkr intel_agp rfkill snd_page_alloc jfs sha256_generic ansi_cprng krng chainiv crypto_wq rng aes_x86_64 aes_generic cbc cryptomgr aead pcompress crypto_hash dm_crypt crypto_blkcipher crypto_algapi linear dm_snapshot dm_mod edd fan thermal processor thermal_sys [last unloaded: cfg80211] Jan 25 20:33:26 worklaptop kernel: [609403.128328] Pid: 24, comm: khubd Tainted: P 2.6.31.8-0.1-desktop #1 Jan 25 20:33:26 worklaptop kernel: [609403.128334] Call Trace: Jan 25 20:33:26 worklaptop kernel: [609403.128359] [<ffffffff81011a19>] try_stack_unwind+0x189/0x1b0 Jan 25 20:33:26 worklaptop kernel: [609403.128373] [<ffffffff8101025d>] dump_trace+0xad/0x3a0 Jan 25 20:33:26 worklaptop kernel: [609403.128386] [<ffffffff81011524>] show_trace_log_lvl+0x64/0x90 Jan 25 20:33:26 worklaptop kernel: [609403.128399] [<ffffffff81011573>] show_trace+0x23/0x40 Jan 25 20:33:26 worklaptop kernel: [609403.128413] [<ffffffff815524d2>] dump_stack+0x81/0x9e Jan 25 20:33:26 worklaptop kernel: [609403.128427] [<ffffffff8106aea0>] warn_slowpath_common+0x80/0xd0 Jan 25 20:33:26 worklaptop kernel: [609403.128440] [<ffffffff8106af7b>] warn_slowpath_fmt+0x4b/0x70 Jan 25 20:33:26 worklaptop kernel: [609403.128452] [<ffffffff811c88be>] sysfs_add_one+0xde/0x180 Jan 25 20:33:26 worklaptop kernel: [609403.128466] [<ffffffff811c8f0b>] sysfs_do_create_link+0x13b/0x1a0 Jan 25 20:33:26 worklaptop kernel: [609403.128478] [<ffffffff811c8fd1>] sysfs_create_link+0x21/0x40 Jan 25 20:33:26 worklaptop kernel: [609403.128492] [<ffffffff81350f93>] device_add_class_symlinks+0x83/0xf0 Jan 25 20:33:26 worklaptop kernel: [609403.128507] [<ffffffff8135255b>] device_add+0x26b/0x420 Jan 25 20:33:26 worklaptop kernel: [609403.128520] [<ffffffff81352738>] device_register+0x28/0x50 Jan 25 20:33:26 worklaptop kernel: [609403.128532] [<ffffffff81352b00>] device_create_vargs+0x110/0x1e0 Jan 25 20:33:26 worklaptop kernel: [609403.128545] [<ffffffff81352c0b>] device_create+0x3b/0x60 Jan 25 20:33:26 worklaptop kernel: [609403.128577] [<ffffffffa01624ae>] snd_register_device_for_dev+0x10e/0x260 [snd] Jan 25 20:33:26 worklaptop kernel: [609403.128616] [<ffffffffa01672ba>] snd_ctl_dev_register+0x6a/0xe0 [snd] Jan 25 20:33:26 worklaptop kernel: [609403.128657] [<ffffffffa016aa79>] snd_device_register_all+0x49/0xb0 [snd] Jan 25 20:33:26 worklaptop kernel: [609403.128702] [<ffffffffa01639fc>] snd_card_register+0x3c/0x220 [snd] Jan 25 20:33:26 worklaptop kernel: [609403.128731] [<ffffffffa119b985>] snd_usb_audio_probe+0x115/0x4f0 [snd_usb_audio] Jan 25 20:33:26 worklaptop kernel: [609403.128787] [<ffffffffa119bd91>] usb_audio_probe+0x31/0x70 [snd_usb_audio] Jan 25 20:33:26 worklaptop kernel: [609403.128813] [<ffffffff813b4c5e>] usb_probe_interface+0xde/0x260 Jan 25 20:33:26 worklaptop kernel: [609403.128828] [<ffffffff81356097>] really_probe+0x77/0x230 Jan 25 20:33:26 worklaptop kernel: [609403.128842] [<ffffffff81356294>] driver_probe_device+0x44/0xa0 Jan 25 20:33:26 worklaptop kernel: [609403.128854] [<ffffffff8135641b>] __device_attach+0x6b/0x80 Jan 25 20:33:26 worklaptop kernel: [609403.128866] [<ffffffff81354cd8>] bus_for_each_drv+0x78/0xc0 Jan 25 20:33:26 worklaptop kernel: [609403.128879] [<ffffffff8135652e>] device_attach+0xae/0xc0 Jan 25 20:33:26 worklaptop kernel: [609403.128892] [<ffffffff81354a35>] bus_probe_device+0x45/0x70 Jan 25 20:33:26 worklaptop kernel: [609403.128904] [<ffffffff813525f0>] device_add+0x300/0x420 Jan 25 20:33:26 worklaptop kernel: [609403.128917] [<ffffffff813b26ee>] usb_set_configuration+0x47e/0x820 Jan 25 20:33:26 worklaptop kernel: [609403.128930] [<ffffffff813be261>] generic_probe+0x41/0xe0 Jan 25 20:33:26 worklaptop kernel: [609403.128943] [<ffffffff813b372b>] usb_probe_device+0x5b/0xc0 Jan 25 20:33:26 worklaptop kernel: [609403.128956] [<ffffffff81356097>] really_probe+0x77/0x230 Jan 25 20:33:26 worklaptop kernel: [609403.128968] [<ffffffff81356294>] driver_probe_device+0x44/0xa0 Jan 25 20:33:26 worklaptop kernel: [609403.128981] [<ffffffff8135641b>] __device_attach+0x6b/0x80 Jan 25 20:33:26 worklaptop kernel: [609403.128992] [<ffffffff81354cd8>] bus_for_each_drv+0x78/0xc0 Jan 25 20:33:26 worklaptop kernel: [609403.129023] [<ffffffff8135652e>] device_attach+0xae/0xc0 Jan 25 20:33:26 worklaptop kernel: [609403.129036] [<ffffffff81354a35>] bus_probe_device+0x45/0x70 Jan 25 20:33:26 worklaptop kernel: [609403.129047] [<ffffffff813525f0>] device_add+0x300/0x420 Jan 25 20:33:26 worklaptop kernel: [609403.129060] [<ffffffff813a9721>] usb_new_device+0x91/0x190 Jan 25 20:33:26 worklaptop kernel: [609403.129072] [<ffffffff813aa2c2>] hub_port_connect_change+0x262/0xa70 Jan 25 20:33:26 worklaptop kernel: [609403.129084] [<ffffffff813aae5a>] hub_events+0x38a/0x8e0 Jan 25 20:33:26 worklaptop kernel: [609403.129096] [<ffffffff813ab3fa>] hub_thread+0x4a/0x1f0 Jan 25 20:33:26 worklaptop kernel: [609403.129110] [<ffffffff8108c196>] kthread+0xb6/0xc0 Jan 25 20:33:26 worklaptop kernel: [609403.129122] [<ffffffff8100d7ba>] child_rip+0xa/0x20 Jan 25 20:33:26 worklaptop kernel: [609403.129133] ---[ end trace 717b5a1bd148a96d ]--- Jan 25 20:33:26 worklaptop kernel: [609403.129559] snd-usb-audio: probe of 2-1:1.2 failed with error -5 It hung *hard* shortly after that. Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.