[90897.665127] usbcore: registered new interface driver usbserial [90897.665148] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the open usb serial operation with the generic one. [90897.665155] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the write usb serial operation with the generic one. [90897.665162] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the close usb serial operation with the generic one. [90897.665168] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the write_room usb serial operation with the generic one. [90897.665174] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the chars_in_buffer usb serial operation with the generic one. [90897.665181] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the read_bulk_callback usb serial operation with the generic one. [90897.665187] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the write_bulk_callback usb serial operation with the generic one. [90897.665222] usbserial: USB Serial support registered for generic [90897.665313] usbcore: registered new interface driver usbserial_generic [90897.665317] usbserial: USB Serial Driver core [90902.117670] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the chars_in_buffer usb serial operation with the generic one. [90902.117688] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the read_bulk_callback usb serial operation with the generic one. [90902.117696] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the write_bulk_callback usb serial operation with the generic one. [90902.117702] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: Had to override the resume usb serial operation with the generic one. [90902.121264] usbserial: USB Serial support registered for Sierra USB modem [90902.121329] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: static descriptor matches [90902.121338] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: static descriptor matches [90902.121347] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found interrupt in on endpoint 0 [90902.121353] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found bulk in on endpoint 1 [90902.121359] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found bulk out on endpoint 2 [90902.121365] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found bulk in on endpoint 3 [90902.121371] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found bulk out on endpoint 4 [90902.121376] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found bulk in on endpoint 5 [90902.121382] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: found bulk out on endpoint 6 [90902.121389] sierra 5-1:1.0: Sierra USB modem converter detected [90902.121395] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: usb_serial_probe - setting up 3 port structures for this device [90902.121413] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_startup [90902.123561] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: get_free_serial 3 [90902.123569] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: get_free_serial - minor base = 0 [90902.123576] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: usb_serial_probe - registering ttyUSB0 [90902.123859] usb 5-1: Sierra USB modem converter now attached to ttyUSB0 [90902.123868] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: usb_serial_probe - registering ttyUSB1 [90902.124005] usb 5-1: Sierra USB modem converter now attached to ttyUSB1 [90902.124013] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: usb_serial_probe - registering ttyUSB2 [90902.124145] usb 5-1: Sierra USB modem converter now attached to ttyUSB2 [90902.124175] usbcore: registered new interface driver sierra [90902.124181] sierra: USB Driver for Sierra Wireless USB modems: v.1.3.2 [90911.203507] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_open [90911.214810] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_open [90911.219185] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_send_setup [90911.221526] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90911.221541] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90911.221548] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write - port 0, 9 byte(s) [90911.221555] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write: write (9 chars) [90911.221562] sierra ttyUSB0: sierra_write - length = 9, data = 61 74 2b 63 66 75 6e 3d 30 [90911.221582] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90911.221588] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90911.221594] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write - port 0, 1 byte(s) [90911.221600] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write: write (1 chars) [90911.221608] sierra ttyUSB0: sierra_write - length = 1, data = 0d [90911.221617] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write - port 0, 1 byte(s) [90911.221622] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write: write (1 chars) [90911.221629] sierra ttyUSB0: sierra_write - length = 1, data = 0a [90911.222096] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_outdat_callback - port 0 [90911.222115] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_outdat_callback - port 0 [90911.222123] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_outdat_callback - port 0 [90911.222149] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: usb_serial_port_work - port 0 [90911.237351] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_close - port 0 [90911.237357] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_close [90911.237363] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_send_setup [90911.239115] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff88001b0d19c0 [90911.239123] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: nonzero status: -2 on endpoint 02. [90911.240116] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff880017cfbe40 [90911.240123] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: nonzero status: -2 on endpoint 02. [90911.241114] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff880017cfbb40 [90911.241121] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: nonzero status: -2 on endpoint 02. [90911.242114] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff88000d0eaa80 [90911.242120] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: nonzero status: -2 on endpoint 02. [90911.243091] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback [90911.243099] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback: urb ffff88001d458180 port ffff88001a946400 has data ffff8800b9127780 [90911.243106] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback: error -2 [90911.243118] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback: resubmit intr urb failed. (-1) [90930.477220] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_open [90930.477241] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_open [90930.482212] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_send_setup [90930.483197] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.483204] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.483212] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write - port 0, 9 byte(s) [90930.483219] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write: write (9 chars) [90930.483226] sierra ttyUSB0: sierra_write - length = 9, data = 61 74 2b 63 66 75 6e 3d 30 [90930.483246] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.483252] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.483258] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write - port 0, 1 byte(s) [90930.483264] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write: write (1 chars) [90930.483270] sierra ttyUSB0: sierra_write - length = 1, data = 0d [90930.483279] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write - port 0, 1 byte(s) [90930.483284] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write: write (1 chars) [90930.483291] sierra ttyUSB0: sierra_write - length = 1, data = 0a [90930.483308] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_close - port 0 [90930.483314] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_close [90930.483320] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_send_setup [90930.484142] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff88001b0d19c0 [90930.484155] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.484171] ------------[ cut here ]------------ [90930.484176] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.484182] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.484396] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.484400] [90930.484401] Call Trace: [90930.484405] [] warn_on_slowpath+0x64/0x90 [90930.484429] [] ? printk+0x6c/0x6e [90930.484444] [] ? mcount_call+0x5/0x31 [90930.484456] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.484468] [] serial_write_room+0x86/0x90 [usbserial] [90930.484476] [] tty_write_room+0x1d/0x20 [90930.484481] [] opost+0x26/0x290 [90930.484487] [] echo_char+0x3d/0x90 [90930.484493] [] n_tty_receive_char+0x148/0x7d0 [90930.484499] [] n_tty_receive_buf+0x274/0x490 [90930.484508] [] ? enqueue_task_fair+0x57/0x60 [90930.484515] [] ? tty_ldisc_try+0x4a/0x60 [90930.484521] [] flush_to_ldisc+0x128/0x1f0 [90930.484527] [] tty_flip_buffer_push+0x7c/0x80 [90930.484537] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.484572] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.484587] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.484600] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.484613] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.484625] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.484633] [] ? _spin_lock+0xe/0x20 [90930.484663] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.484671] [] ? rcu_process_callbacks+0x53/0x60 [90930.484678] [] handle_IRQ_event+0x45/0x80 [90930.484685] [] handle_fasteoi_irq+0x9e/0x110 [90930.484691] [] ? call_softirq+0x1c/0x30 [90930.484698] [] do_IRQ+0x86/0x100 [90930.484703] [] ret_from_intr+0x0/0x29 [90930.484707] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.484720] [] ? __wake_up_sync+0x55/0x70 [90930.484728] [] ? pipe_write+0x4bb/0x620 [90930.484734] [] ? thread_return+0x37/0x3c3 [90930.484742] [] ? do_sync_write+0xf9/0x140 [90930.484749] [] ? do_syslog+0x134/0x4f0 [90930.484756] [] ? autoremove_wake_function+0x0/0x40 [90930.484764] [] ? kmsg_read+0x0/0x70 [90930.484771] [] ? apparmor_file_permission+0x28/0x30 [90930.484780] [] ? security_file_permission+0x16/0x20 [90930.484786] [] ? vfs_write+0xcb/0x130 [90930.484793] [] ? sys_write+0x55/0x90 [90930.484800] [] ? system_call_fastpath+0x16/0x1b [90930.484804] [90930.484808] ---[ end trace 9a769d8731a3f644 ]--- [90930.484813] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.484819] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.484822] [90930.484827] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.484839] ------------[ cut here ]------------ [90930.484844] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.484849] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.485038] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.485042] [90930.485044] Call Trace: [90930.485047] [] warn_on_slowpath+0x64/0x90 [90930.485061] [] ? printk+0x6c/0x6e [90930.485075] [] ? mcount_call+0x5/0x31 [90930.485086] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.485097] [] serial_write_room+0x86/0x90 [usbserial] [90930.485104] [] tty_write_room+0x1d/0x20 [90930.485109] [] opost+0x26/0x290 [90930.485114] [] echo_char+0x3d/0x90 [90930.485121] [] n_tty_receive_char+0x148/0x7d0 [90930.485127] [] n_tty_receive_buf+0x274/0x490 [90930.485134] [] ? enqueue_task_fair+0x57/0x60 [90930.485141] [] ? tty_ldisc_try+0x4a/0x60 [90930.485147] [] flush_to_ldisc+0x128/0x1f0 [90930.485153] [] tty_flip_buffer_push+0x7c/0x80 [90930.485162] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.485193] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.485208] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.485221] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.485233] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.485246] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.485253] [] ? _spin_lock+0xe/0x20 [90930.485283] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.485290] [] ? rcu_process_callbacks+0x53/0x60 [90930.485296] [] handle_IRQ_event+0x45/0x80 [90930.485303] [] handle_fasteoi_irq+0x9e/0x110 [90930.485309] [] ? call_softirq+0x1c/0x30 [90930.485315] [] do_IRQ+0x86/0x100 [90930.485321] [] ret_from_intr+0x0/0x29 [90930.485324] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.485337] [] ? __wake_up_sync+0x55/0x70 [90930.485343] [] ? pipe_write+0x4bb/0x620 [90930.485349] [] ? thread_return+0x37/0x3c3 [90930.485356] [] ? do_sync_write+0xf9/0x140 [90930.485362] [] ? do_syslog+0x134/0x4f0 [90930.485369] [] ? autoremove_wake_function+0x0/0x40 [90930.485375] [] ? kmsg_read+0x0/0x70 [90930.485381] [] ? apparmor_file_permission+0x28/0x30 [90930.485389] [] ? security_file_permission+0x16/0x20 [90930.485395] [] ? vfs_write+0xcb/0x130 [90930.485401] [] ? sys_write+0x55/0x90 [90930.485408] [] ? system_call_fastpath+0x16/0x1b [90930.485412] [90930.485416] ---[ end trace 9a769d8731a3f644 ]--- [90930.485420] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.485426] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.485429] [90930.485434] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.485445] ------------[ cut here ]------------ [90930.485450] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.485455] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.485644] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.485648] [90930.485649] Call Trace: [90930.485652] [] warn_on_slowpath+0x64/0x90 [90930.485667] [] ? printk+0x6c/0x6e [90930.485680] [] ? mcount_call+0x5/0x31 [90930.485691] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.485703] [] serial_write_room+0x86/0x90 [usbserial] [90930.485709] [] tty_write_room+0x1d/0x20 [90930.485715] [] opost+0x26/0x290 [90930.485720] [] echo_char+0x3d/0x90 [90930.485726] [] n_tty_receive_char+0x148/0x7d0 [90930.485732] [] n_tty_receive_buf+0x274/0x490 [90930.485740] [] ? enqueue_task_fair+0x57/0x60 [90930.485747] [] ? tty_ldisc_try+0x4a/0x60 [90930.485752] [] flush_to_ldisc+0x128/0x1f0 [90930.485759] [] tty_flip_buffer_push+0x7c/0x80 [90930.485768] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.485800] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.485814] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.485827] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.485839] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.485852] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.485859] [] ? _spin_lock+0xe/0x20 [90930.485889] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.485896] [] ? rcu_process_callbacks+0x53/0x60 [90930.485902] [] handle_IRQ_event+0x45/0x80 [90930.485908] [] handle_fasteoi_irq+0x9e/0x110 [90930.485915] [] ? call_softirq+0x1c/0x30 [90930.485921] [] do_IRQ+0x86/0x100 [90930.485926] [] ret_from_intr+0x0/0x29 [90930.485930] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.485942] [] ? __wake_up_sync+0x55/0x70 [90930.485948] [] ? pipe_write+0x4bb/0x620 [90930.485954] [] ? thread_return+0x37/0x3c3 [90930.485961] [] ? do_sync_write+0xf9/0x140 [90930.485967] [] ? do_syslog+0x134/0x4f0 [90930.485974] [] ? autoremove_wake_function+0x0/0x40 [90930.485980] [] ? kmsg_read+0x0/0x70 [90930.485986] [] ? apparmor_file_permission+0x28/0x30 [90930.485994] [] ? security_file_permission+0x16/0x20 [90930.486000] [] ? vfs_write+0xcb/0x130 [90930.486006] [] ? sys_write+0x55/0x90 [90930.486013] [] ? system_call_fastpath+0x16/0x1b [90930.486018] [90930.486021] ---[ end trace 9a769d8731a3f644 ]--- [90930.486025] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.486031] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.486034] [90930.486038] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.486050] ------------[ cut here ]------------ [90930.486054] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.486060] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.486248] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.486252] [90930.486254] Call Trace: [90930.486257] [] warn_on_slowpath+0x64/0x90 [90930.486272] [] ? printk+0x6c/0x6e [90930.486285] [] ? mcount_call+0x5/0x31 [90930.486296] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.486308] [] serial_write_room+0x86/0x90 [usbserial] [90930.486314] [] tty_write_room+0x1d/0x20 [90930.486320] [] opost+0x26/0x290 [90930.486325] [] echo_char+0x3d/0x90 [90930.486331] [] n_tty_receive_char+0x148/0x7d0 [90930.486337] [] n_tty_receive_buf+0x274/0x490 [90930.486345] [] ? enqueue_task_fair+0x57/0x60 [90930.486351] [] ? tty_ldisc_try+0x4a/0x60 [90930.486357] [] flush_to_ldisc+0x128/0x1f0 [90930.486363] [] tty_flip_buffer_push+0x7c/0x80 [90930.486372] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.486404] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.486418] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.486431] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.486444] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.486456] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.486463] [] ? _spin_lock+0xe/0x20 [90930.486493] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.486500] [] ? rcu_process_callbacks+0x53/0x60 [90930.486506] [] handle_IRQ_event+0x45/0x80 [90930.486512] [] handle_fasteoi_irq+0x9e/0x110 [90930.486519] [] ? call_softirq+0x1c/0x30 [90930.486525] [] do_IRQ+0x86/0x100 [90930.486530] [] ret_from_intr+0x0/0x29 [90930.486534] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.486546] [] ? __wake_up_sync+0x55/0x70 [90930.486552] [] ? pipe_write+0x4bb/0x620 [90930.486558] [] ? thread_return+0x37/0x3c3 [90930.486565] [] ? do_sync_write+0xf9/0x140 [90930.486571] [] ? do_syslog+0x134/0x4f0 [90930.486578] [] ? autoremove_wake_function+0x0/0x40 [90930.486584] [] ? kmsg_read+0x0/0x70 [90930.486591] [] ? apparmor_file_permission+0x28/0x30 [90930.486598] [] ? security_file_permission+0x16/0x20 [90930.486604] [] ? vfs_write+0xcb/0x130 [90930.486610] [] ? sys_write+0x55/0x90 [90930.486618] [] ? system_call_fastpath+0x16/0x1b [90930.486622] [90930.486625] ---[ end trace 9a769d8731a3f644 ]--- [90930.486629] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.486635] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.486638] [90930.486642] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.486654] ------------[ cut here ]------------ [90930.486659] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.486664] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.486852] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.486857] [90930.486858] Call Trace: [90930.486861] [] warn_on_slowpath+0x64/0x90 [90930.486876] [] ? printk+0x6c/0x6e [90930.486889] [] ? mcount_call+0x5/0x31 [90930.486900] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.486912] [] serial_write_room+0x86/0x90 [usbserial] [90930.486918] [] tty_write_room+0x1d/0x20 [90930.486923] [] opost+0x26/0x290 [90930.486929] [] echo_char+0x3d/0x90 [90930.486935] [] n_tty_receive_char+0x148/0x7d0 [90930.486941] [] n_tty_receive_buf+0x274/0x490 [90930.486949] [] ? enqueue_task_fair+0x57/0x60 [90930.486955] [] ? tty_ldisc_try+0x4a/0x60 [90930.486961] [] flush_to_ldisc+0x128/0x1f0 [90930.486967] [] tty_flip_buffer_push+0x7c/0x80 [90930.486976] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.487008] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.487022] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.487035] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.487047] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.487060] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.487067] [] ? _spin_lock+0xe/0x20 [90930.487097] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.487104] [] ? rcu_process_callbacks+0x53/0x60 [90930.487110] [] handle_IRQ_event+0x45/0x80 [90930.487116] [] handle_fasteoi_irq+0x9e/0x110 [90930.487122] [] ? call_softirq+0x1c/0x30 [90930.487128] [] do_IRQ+0x86/0x100 [90930.487134] [] ret_from_intr+0x0/0x29 [90930.487137] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.487150] [] ? __wake_up_sync+0x55/0x70 [90930.487155] [] ? pipe_write+0x4bb/0x620 [90930.487162] [] ? thread_return+0x37/0x3c3 [90930.487169] [] ? do_sync_write+0xf9/0x140 [90930.487175] [] ? do_syslog+0x134/0x4f0 [90930.487182] [] ? autoremove_wake_function+0x0/0x40 [90930.487188] [] ? kmsg_read+0x0/0x70 [90930.487194] [] ? apparmor_file_permission+0x28/0x30 [90930.487201] [] ? security_file_permission+0x16/0x20 [90930.487208] [] ? vfs_write+0xcb/0x130 [90930.487214] [] ? sys_write+0x55/0x90 [90930.487221] [] ? system_call_fastpath+0x16/0x1b [90930.487225] [90930.487229] ---[ end trace 9a769d8731a3f644 ]--- [90930.487233] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.487239] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.487242] [90930.487246] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.487258] ------------[ cut here ]------------ [90930.487262] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.487268] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.487456] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.487460] [90930.487461] Call Trace: [90930.487464] [] warn_on_slowpath+0x64/0x90 [90930.487479] [] ? printk+0x6c/0x6e [90930.487492] [] ? mcount_call+0x5/0x31 [90930.487503] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.487515] [] serial_write_room+0x86/0x90 [usbserial] [90930.487521] [] tty_write_room+0x1d/0x20 [90930.487526] [] opost+0x26/0x290 [90930.487532] [] echo_char+0x3d/0x90 [90930.487538] [] n_tty_receive_char+0x148/0x7d0 [90930.487544] [] n_tty_receive_buf+0x274/0x490 [90930.487552] [] ? enqueue_task_fair+0x57/0x60 [90930.487558] [] ? tty_ldisc_try+0x4a/0x60 [90930.487564] [] flush_to_ldisc+0x128/0x1f0 [90930.487570] [] tty_flip_buffer_push+0x7c/0x80 [90930.487579] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.487611] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.487625] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.487638] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.487650] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.487663] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.487670] [] ? _spin_lock+0xe/0x20 [90930.487700] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.487707] [] ? rcu_process_callbacks+0x53/0x60 [90930.487713] [] handle_IRQ_event+0x45/0x80 [90930.487719] [] handle_fasteoi_irq+0x9e/0x110 [90930.487725] [] ? call_softirq+0x1c/0x30 [90930.487731] [] do_IRQ+0x86/0x100 [90930.487737] [] ret_from_intr+0x0/0x29 [90930.487740] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.487753] [] ? __wake_up_sync+0x55/0x70 [90930.487758] [] ? pipe_write+0x4bb/0x620 [90930.487765] [] ? thread_return+0x37/0x3c3 [90930.487772] [] ? do_sync_write+0xf9/0x140 [90930.487778] [] ? do_syslog+0x134/0x4f0 [90930.487785] [] ? autoremove_wake_function+0x0/0x40 [90930.487791] [] ? kmsg_read+0x0/0x70 [90930.487797] [] ? apparmor_file_permission+0x28/0x30 [90930.487805] [] ? security_file_permission+0x16/0x20 [90930.487811] [] ? vfs_write+0xcb/0x130 [90930.487817] [] ? sys_write+0x55/0x90 [90930.487825] [] ? system_call_fastpath+0x16/0x1b [90930.487829] [90930.487832] ---[ end trace 9a769d8731a3f644 ]--- [90930.487837] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.487842] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.487845] [90930.487850] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.487862] ------------[ cut here ]------------ [90930.487866] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.487871] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.488014] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.488014] [90930.488014] Call Trace: [90930.488014] [] warn_on_slowpath+0x64/0x90 [90930.488014] [] ? printk+0x6c/0x6e [90930.488014] [] ? mcount_call+0x5/0x31 [90930.488014] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.488014] [] serial_write_room+0x86/0x90 [usbserial] [90930.488014] [] tty_write_room+0x1d/0x20 [90930.488014] [] opost+0x26/0x290 [90930.488014] [] echo_char+0x3d/0x90 [90930.488014] [] n_tty_receive_char+0x148/0x7d0 [90930.488014] [] n_tty_receive_buf+0x274/0x490 [90930.488014] [] ? enqueue_task_fair+0x57/0x60 [90930.488014] [] ? tty_ldisc_try+0x4a/0x60 [90930.488014] [] flush_to_ldisc+0x128/0x1f0 [90930.488014] [] tty_flip_buffer_push+0x7c/0x80 [90930.488014] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.488014] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.488014] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.488014] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.488014] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.488014] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.488014] [] ? _spin_lock+0xe/0x20 [90930.488014] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.488014] [] ? rcu_process_callbacks+0x53/0x60 [90930.488014] [] handle_IRQ_event+0x45/0x80 [90930.488014] [] handle_fasteoi_irq+0x9e/0x110 [90930.488014] [] ? call_softirq+0x1c/0x30 [90930.488014] [] do_IRQ+0x86/0x100 [90930.488014] [] ret_from_intr+0x0/0x29 [90930.488014] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.488014] [] ? __wake_up_sync+0x55/0x70 [90930.488014] [] ? pipe_write+0x4bb/0x620 [90930.488014] [] ? thread_return+0x37/0x3c3 [90930.488014] [] ? do_sync_write+0xf9/0x140 [90930.488014] [] ? do_syslog+0x134/0x4f0 [90930.488014] [] ? autoremove_wake_function+0x0/0x40 [90930.488014] [] ? kmsg_read+0x0/0x70 [90930.488014] [] ? apparmor_file_permission+0x28/0x30 [90930.488014] [] ? security_file_permission+0x16/0x20 [90930.488014] [] ? vfs_write+0xcb/0x130 [90930.488014] [] ? sys_write+0x55/0x90 [90930.488014] [] ? system_call_fastpath+0x16/0x1b [90930.488014] [90930.488014] ---[ end trace 9a769d8731a3f644 ]--- [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.488014] [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.488014] ------------[ cut here ]------------ [90930.488014] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.488014] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.488014] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.488014] [90930.488014] Call Trace: [90930.488014] [] warn_on_slowpath+0x64/0x90 [90930.488014] [] ? printk+0x6c/0x6e [90930.488014] [] ? mcount_call+0x5/0x31 [90930.488014] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.488014] [] serial_write_room+0x86/0x90 [usbserial] [90930.488014] [] tty_write_room+0x1d/0x20 [90930.488014] [] opost+0x26/0x290 [90930.488014] [] echo_char+0x3d/0x90 [90930.488014] [] n_tty_receive_char+0x148/0x7d0 [90930.488014] [] n_tty_receive_buf+0x274/0x490 [90930.488014] [] ? enqueue_task_fair+0x57/0x60 [90930.488014] [] ? tty_ldisc_try+0x4a/0x60 [90930.488014] [] flush_to_ldisc+0x128/0x1f0 [90930.488014] [] tty_flip_buffer_push+0x7c/0x80 [90930.488014] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.488014] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.488014] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.488014] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.488014] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.488014] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.488014] [] ? _spin_lock+0xe/0x20 [90930.488014] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.488014] [] ? rcu_process_callbacks+0x53/0x60 [90930.488014] [] handle_IRQ_event+0x45/0x80 [90930.488014] [] handle_fasteoi_irq+0x9e/0x110 [90930.488014] [] ? call_softirq+0x1c/0x30 [90930.488014] [] do_IRQ+0x86/0x100 [90930.488014] [] ret_from_intr+0x0/0x29 [90930.488014] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.488014] [] ? __wake_up_sync+0x55/0x70 [90930.488014] [] ? pipe_write+0x4bb/0x620 [90930.488014] [] ? thread_return+0x37/0x3c3 [90930.488014] [] ? do_sync_write+0xf9/0x140 [90930.488014] [] ? do_syslog+0x134/0x4f0 [90930.488014] [] ? autoremove_wake_function+0x0/0x40 [90930.488014] [] ? kmsg_read+0x0/0x70 [90930.488014] [] ? apparmor_file_permission+0x28/0x30 [90930.488014] [] ? security_file_permission+0x16/0x20 [90930.488014] [] ? vfs_write+0xcb/0x130 [90930.488014] [] ? sys_write+0x55/0x90 [90930.488014] [] ? system_call_fastpath+0x16/0x1b [90930.488014] [90930.488014] ---[ end trace 9a769d8731a3f644 ]--- [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.488014] [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.488014] ------------[ cut here ]------------ [90930.488014] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.488014] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.488014] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.488014] [90930.488014] Call Trace: [90930.488014] [] warn_on_slowpath+0x64/0x90 [90930.488014] [] ? printk+0x6c/0x6e [90930.488014] [] ? mcount_call+0x5/0x31 [90930.488014] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.488014] [] serial_write_room+0x86/0x90 [usbserial] [90930.488014] [] tty_write_room+0x1d/0x20 [90930.488014] [] opost+0x26/0x290 [90930.488014] [] echo_char+0x3d/0x90 [90930.488014] [] n_tty_receive_char+0x148/0x7d0 [90930.488014] [] n_tty_receive_buf+0x274/0x490 [90930.488014] [] ? enqueue_task_fair+0x57/0x60 [90930.488014] [] ? tty_ldisc_try+0x4a/0x60 [90930.488014] [] flush_to_ldisc+0x128/0x1f0 [90930.488014] [] tty_flip_buffer_push+0x7c/0x80 [90930.488014] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.488014] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.488014] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.488014] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.488014] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.488014] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.488014] [] ? _spin_lock+0xe/0x20 [90930.488014] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.488014] [] ? rcu_process_callbacks+0x53/0x60 [90930.488014] [] handle_IRQ_event+0x45/0x80 [90930.488014] [] handle_fasteoi_irq+0x9e/0x110 [90930.488014] [] ? call_softirq+0x1c/0x30 [90930.488014] [] do_IRQ+0x86/0x100 [90930.488014] [] ret_from_intr+0x0/0x29 [90930.488014] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.488014] [] ? __wake_up_sync+0x55/0x70 [90930.488014] [] ? pipe_write+0x4bb/0x620 [90930.488014] [] ? thread_return+0x37/0x3c3 [90930.488014] [] ? do_sync_write+0xf9/0x140 [90930.488014] [] ? do_syslog+0x134/0x4f0 [90930.488014] [] ? autoremove_wake_function+0x0/0x40 [90930.488014] [] ? kmsg_read+0x0/0x70 [90930.488014] [] ? apparmor_file_permission+0x28/0x30 [90930.488014] [] ? security_file_permission+0x16/0x20 [90930.488014] [] ? vfs_write+0xcb/0x130 [90930.488014] [] ? sys_write+0x55/0x90 [90930.488014] [] ? system_call_fastpath+0x16/0x1b [90930.488014] [90930.488014] ---[ end trace 9a769d8731a3f644 ]--- [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.488014] [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff880017cfbe40 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: serial_write_room - port 0 [90930.488014] ------------[ cut here ]------------ [90930.488014] WARNING: at /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:324 serial_write_room+0x86/0x90 [usbserial]() [90930.488014] Modules linked in: sierra usbserial iwlagn nls_iso8859_1 vfat fat usb_storage libusual nls_cp437 loop isofs udf crc_itu_t cpufreq_stats cpufreq_powersave cpufreq_userspace cpufreq_conservative usblp af_packet i915 drm rfcomm bridge stp bnep sco l2cap kvm_intel kvm uinput ppdev ipv6 tun acpi_cpufreq cpufreq_ondemand freq_table container pci_slot sbs sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport btusb bluetooth snd_hda_intel snd_pcm_oss snd_mixer_oss joydev snd_pcm snd_seq_dummy snd_seq_oss arc4 ecb crypto_blkcipher pcmcia snd_seq_midi snd_rawmidi iwlcore thinkpad_acpi snd_seq_midi_event snd_seq rfkill snd_timer nvram led_class snd_seq_device snd video psmouse sdhci_pci evdev mac80211 yenta_socket ac sdhci output battery soundcore wmi intel_agp cfg80211 ricoh_mmc serio_raw pcspkr iTCO_wdt mmc_core rsrc_nonstatic pcmcia_core snd_page_alloc iTCO_vendor_support button shpchp pci_hotplug ext3 jbd mbcache sr_mod cdrom ata_generic sd_mod crc_t10dif sg ata_piix pata_acpi ahci libata scsi_mod ohci1394 ieee1394 ehci_hcd uhci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb fuse [last unloaded: usbserial] [90930.488014] Pid: 8534, comm: dd Tainted: G W 2.6.27-7-generic #1 [90930.488014] [90930.488014] Call Trace: [90930.488014] [] warn_on_slowpath+0x64/0x90 [90930.488014] [] ? printk+0x6c/0x6e [90930.488014] [] ? mcount_call+0x5/0x31 [90930.488014] [] ? serial_write_room+0x0/0x90 [usbserial] [90930.488014] [] serial_write_room+0x86/0x90 [usbserial] [90930.488014] [] tty_write_room+0x1d/0x20 [90930.488014] [] opost+0x26/0x290 [90930.488014] [] n_tty_receive_char+0x5eb/0x7d0 [90930.488014] [] n_tty_receive_buf+0x274/0x490 [90930.488014] [] ? apic_wait_icr_idle+0x18/0x40 [90930.488014] [] ? native_smp_send_reschedule+0x3f/0x60 [90930.488014] [] ? tty_ldisc_try+0x4a/0x60 [90930.488014] [] flush_to_ldisc+0x128/0x1f0 [90930.488014] [] tty_flip_buffer_push+0x7c/0x80 [90930.488014] [] sierra_indat_callback+0xf2/0x170 [sierra] [90930.488014] [] usb_hcd_giveback_urb+0x60/0xe0 [usbcore] [90930.488014] [] uhci_giveback_urb+0xb0/0x240 [uhci_hcd] [90930.488014] [] uhci_scan_qh+0x256/0x490 [uhci_hcd] [90930.488014] [] uhci_scan_schedule+0x116/0x310 [uhci_hcd] [90930.488014] [] uhci_irq+0x92/0x1a0 [uhci_hcd] [90930.488014] [] ? _spin_lock+0xe/0x20 [90930.488014] [] usb_hcd_irq+0x4f/0xb0 [usbcore] [90930.488014] [] ? rcu_process_callbacks+0x53/0x60 [90930.488014] [] handle_IRQ_event+0x45/0x80 [90930.488014] [] handle_fasteoi_irq+0x9e/0x110 [90930.488014] [] ? call_softirq+0x1c/0x30 [90930.488014] [] do_IRQ+0x86/0x100 [90930.488014] [] ret_from_intr+0x0/0x29 [90930.488014] [] ? _spin_unlock_irqrestore+0x18/0x30 [90930.488014] [] ? __wake_up_sync+0x55/0x70 [90930.488014] [] ? pipe_write+0x4bb/0x620 [90930.488014] [] ? thread_return+0x37/0x3c3 [90930.488014] [] ? do_sync_write+0xf9/0x140 [90930.488014] [] ? do_syslog+0x134/0x4f0 [90930.488014] [] ? autoremove_wake_function+0x0/0x40 [90930.488014] [] ? kmsg_read+0x0/0x70 [90930.488014] [] ? apparmor_file_permission+0x28/0x30 [90930.488014] [] ? security_file_permission+0x16/0x20 [90930.488014] [] ? vfs_write+0xcb/0x130 [90930.488014] [] ? sys_write+0x55/0x90 [90930.488014] [] ? system_call_fastpath+0x16/0x1b [90930.488014] [90930.488014] ---[ end trace 9a769d8731a3f644 ]--- [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - port 0 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_write_room - write limit hit [90930.488014] [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_outdat_callback - port 0 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_outdat_callback - port 0 [90930.488014] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_outdat_callback - port 0 [90930.490576] /build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c: usb_serial_port_work - port 0 [90930.491121] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff880017cfbb40 [90930.491129] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: nonzero status: -2 on endpoint 02. [90930.492121] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: ffff88000d0eaa80 [90930.492129] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_indat_callback: nonzero status: -2 on endpoint 02. [90930.493097] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback [90930.493105] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback: urb ffff88001d458180 port ffff88001a946400 has data ffff8800b9127780 [90930.493113] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback: error -2 [90930.493126] /build/buildd/linux-2.6.27/drivers/usb/serial/sierra.c: sierra_instat_callback: resubmit intr urb failed. (-1)