Same thing bites me on 9.10 alpha 3 + patches. My lsusb is under
406026.
Linux lt 2.6.31-4-generic #23-Ubuntu SMP Mon Jul 27 18:39:51 UTC 2009 i686
GNU/Linux
/var/log/messages
Jul 31 12:19:19 lt kernel: [ 3512.672031] pcmcia_socket pcmcia_socket0: pccard:
CardBus card inserted into slot 0
Jul 31 12:19:19 lt kernel: [ 3512.672154] pci 0000:04:00.0: PME# supported from
D0 D1 D2 D3hot
Jul 31 12:19:19 lt kernel: [ 3512.672160] pci 0000:04:00.0: PME# disabled
Jul 31 12:19:19 lt kernel: [ 3512.672276] pci 0000:04:00.1: PME# supported from
D0 D1 D2 D3hot
Jul 31 12:19:19 lt kernel: [ 3512.672282] pci 0000:04:00.1: PME# disabled
Jul 31 12:19:19 lt kernel: [ 3512.672423] ohci_hcd 0000:04:00.0: enabling
device (0000 -> 0002)
Jul 31 12:19:19 lt kernel: [ 3512.672435] ohci_hcd 0000:04:00.0: PCI INT A ->
GSI 18 (level, low) -> IRQ 18
Jul 31 12:19:19 lt kernel: [ 3512.672471] ohci_hcd 0000:04:00.0: OHCI Host
Controller
Jul 31 12:19:19 lt kernel: [ 3512.672544] ohci_hcd 0000:04:00.0: new USB bus
registered, assigned bus number 6
Jul 31 12:19:19 lt kernel: [ 3512.672564] ohci_hcd 0000:04:00.0: irq 18, io mem
0x84000000
Jul 31 12:19:19 lt kernel: [ 3512.758810] usb usb6: configuration #1 chosen
from 1 choice
Jul 31 12:19:19 lt kernel: [ 3512.758963] hub 6-0:1.0: USB hub found
Jul 31 12:19:19 lt kernel: [ 3512.758983] hub 6-0:1.0: 3 ports detected
Jul 31 12:19:19 lt kernel: [ 3512.759310] ohci_hcd 0000:04:00.1: enabling
device (0000 -> 0002)
Jul 31 12:19:19 lt kernel: [ 3512.759328] ohci_hcd 0000:04:00.1: PCI INT B ->
GSI 18 (level, low) -> IRQ 18
Jul 31 12:19:22 lt kernel: [ 3512.759381] ohci_hcd 0000:04:00.1: OHCI Host
Controller
Jul 31 12:19:22 lt kernel: [ 3512.759535] ohci_hcd 0000:04:00.1: new USB bus
registered, assigned bus number 7
Jul 31 12:19:22 lt kernel: [ 3512.759566] ohci_hcd 0000:04:00.1: irq 18, io mem
0x84001000
Jul 31 12:19:22 lt kernel: [ 3512.846381] usb usb7: configuration #1 chosen
from 1 choice
Jul 31 12:19:22 lt kernel: [ 3512.846459] hub 7-0:1.0: USB hub found
Jul 31 12:19:22 lt kernel: [ 3512.846473] hub 7-0:1.0: 2 ports detected
Jul 31 12:19:22 lt kernel: [ 3516.136073] usb 6-1: new full speed USB device
using ohci_hcd and address 2
Jul 31 12:19:22 lt kernel: [ 3516.332447] usb 6-1: configuration #1 chosen from
1 choice
Jul 31 12:19:22 lt kernel: [ 3516.404017] usbcore: registered new interface
driver usbserial
Jul 31 12:19:22 lt kernel: [ 3516.404034] USB Serial support registered for
generic
Jul 31 12:19:22 lt kernel: [ 3516.404102] usbcore: registered new interface
driver usbserial_generic
Jul 31 12:19:22 lt kernel: [ 3516.404105] usbserial: USB Serial Driver core
Jul 31 12:19:22 lt kernel: [ 3516.407502] USB Serial support registered for GSM
modem (1-port)
Jul 31 12:19:22 lt kernel: [ 3516.407581] option 6-1:1.0: GSM modem (1-port)
converter detected
Jul 31 12:19:22 lt kernel: [ 3516.407689] usb 6-1: GSM modem (1-port) converter
now attached to ttyUSB0
Jul 31 12:19:22 lt kernel: [ 3516.407705] option 6-1:1.1: GSM modem (1-port)
converter detected
Jul 31 12:19:33 lt pppd[17066]: Plugin /usr/lib/pppd/2.4.4/nm-pppd-plugin.so
loaded.
Jul 31 12:19:33 lt pppd[17066]: pppd 2.4.5 started by root, uid 0
Jul 31 12:19:49 lt kernel: [ 3516.407755] usb 6-1: GSM modem (1-port) converter
now attached to ttyUSB1
Jul 31 12:19:49 lt kernel: [ 3516.407769] option 6-1:1.2: GSM modem (1-port)
converter detected
Jul 31 12:19:49 lt kernel: [ 3516.407825] usb 6-1: GSM modem (1-port) converter
now attached to ttyUSB2
Jul 31 12:19:49 lt kernel: [ 3516.407838] option 6-1:1.3: GSM modem (1-port)
converter detected
Jul 31 12:19:49 lt kernel: [ 3516.407890] usb 6-1: GSM modem (1-port) converter
now attached to ttyUSB3
Jul 31 12:19:49 lt kernel: [ 3516.407904] usbcore: registered new interface
driver option
Jul 31 12:19:49 lt kernel: [ 3516.407906] option: v0.7.2:USB Driver for GSM
modems
Jul 31 12:19:49 lt kernel: [ 3542.639085] ------------[ cut here ]------------
Jul 31 12:19:49 lt kernel: [ 3542.639106] WARNING: at
/build/buildd/linux-2.6.31/drivers/usb/serial/usb-serial.c:436
serial_ioctl+0x98/0xa0 [usbserial]()
Jul 31 12:19:49 lt kernel: [ 3542.639113] Hardware name: Latitude D620
Jul 31 12:19:49 lt kernel: [ 3542.639117] Modules linked in: option usbserial
hid_microsoft usbhid cbc aes_i586 aes_generic binfmt_misc ppdev vboxnetadp
vboxnetflt vboxdrv coretemp lp parport snd_hda_codec_idt joydev snd_hda_intel
snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy snd_seq_oss
snd_seq_midi ecb snd_rawmidi iwl3945 snd_seq_midi_event psmouse iwlcore snd_seq
pcmcia snd_timer snd_seq_device mac80211 snd yenta_socket led_class soundcore
rsrc_nonstatic snd_page_alloc cfg80211 pcmcia_core serio_raw nvidia(P) dell_wmi
dell_laptop dcdbas tg3 dm_raid45 xor fbcon tileblit font bitblit softcursor
i915 drm i2c_algo_bit video output intel_agp agpgart
Jul 31 12:19:49 lt kernel: [ 3542.639235] Pid: 3089, comm: NetworkManager
Tainted: P 2.6.31-4-generic #23-Ubuntu
Jul 31 12:19:49 lt kernel: [ 3542.639241] Call Trace:
Jul 31 12:19:49 lt kernel: [ 3542.639255] [<c013fd7d>]
warn_slowpath_common+0x6d/0xa0
Jul 31 12:19:49 lt kernel: [ 3542.639267] [<f8794618>] ?
serial_ioctl+0x98/0xa0 [usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639279] [<f8794618>] ?
serial_ioctl+0x98/0xa0 [usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639287] [<c013fdc5>]
warn_slowpath_null+0x15/0x20
Jul 31 12:19:49 lt kernel: [ 3542.639298] [<f8794618>] serial_ioctl+0x98/0xa0
[usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639306] [<c014e5b9>] ?
kill_something_info+0x29/0x110
Jul 31 12:19:49 lt kernel: [ 3542.639314] [<c0156880>] ?
autoremove_wake_function+0x0/0x40
Jul 31 12:19:49 lt kernel: [ 3542.639326] [<f8794580>] ? serial_ioctl+0x0/0xa0
[usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639334] [<c03774f7>] tty_ioctl+0x77/0x620
Jul 31 12:19:49 lt kernel: [ 3542.639342] [<c0377480>] ? tty_ioctl+0x0/0x620
Jul 31 12:19:49 lt kernel: [ 3542.639350] [<c01ee1cc>] vfs_ioctl+0x1c/0x90
Jul 31 12:19:49 lt kernel: [ 3542.639357] [<c01ee4f1>] do_vfs_ioctl+0x71/0x310
Jul 31 12:19:49 lt kernel: [ 3542.639363] [<c01ee7ef>] sys_ioctl+0x5f/0x80
Jul 31 12:19:49 lt kernel: [ 3542.639371] [<c010334c>] syscall_call+0x7/0xb
Jul 31 12:19:49 lt kernel: [ 3542.639376] ---[ end trace 6a5e760f12c5cfba ]---
Jul 31 12:19:49 lt kernel: [ 3542.639387] ------------[ cut here ]------------
Jul 31 12:19:49 lt kernel: [ 3542.639398] WARNING: at
/build/buildd/linux-2.6.31/drivers/usb/serial/usb-serial.c:452
serial_set_termios+0x6e/0xa0 [usbserial]()
Jul 31 12:19:49 lt kernel: [ 3542.639404] Hardware name: Latitude D620
Jul 31 12:19:49 lt kernel: [ 3542.639408] Modules linked in: option usbserial
hid_microsoft usbhid cbc aes_i586 aes_generic binfmt_misc ppdev vboxnetadp
vboxnetflt vboxdrv coretemp lp parport snd_hda_codec_idt joydev snd_hda_intel
snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy snd_seq_oss
snd_seq_midi ecb snd_rawmidi iwl3945 snd_seq_midi_event psmouse iwlcore snd_seq
pcmcia snd_timer snd_seq_device mac80211 snd yenta_socket led_class soundcore
rsrc_nonstatic snd_page_alloc cfg80211 pcmcia_core serio_raw nvidia(P) dell_wmi
dell_laptop dcdbas tg3 dm_raid45 xor fbcon tileblit font bitblit softcursor
i915 drm i2c_algo_bit video output intel_agp agpgart
Jul 31 12:19:49 lt kernel: [ 3542.639516] Pid: 3089, comm: NetworkManager
Tainted: P W 2.6.31-4-generic #23-Ubuntu
Jul 31 12:19:49 lt kernel: [ 3542.639521] Call Trace:
Jul 31 12:19:49 lt kernel: [ 3542.639528] [<c013fd7d>]
warn_slowpath_common+0x6d/0xa0
Jul 31 12:19:49 lt kernel: [ 3542.639540] [<f8794a2e>] ?
serial_set_termios+0x6e/0xa0 [usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639551] [<f8794a2e>] ?
serial_set_termios+0x6e/0xa0 [usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639559] [<c013fdc5>]
warn_slowpath_null+0x15/0x20
Jul 31 12:19:49 lt kernel: [ 3542.639570] [<f8794a2e>]
serial_set_termios+0x6e/0xa0 [usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.639579] [<c037baa9>]
change_termios+0x169/0x2c0
Jul 31 12:19:49 lt kernel: [ 3542.639587] [<c037bdf8>] set_termios+0xd8/0x1d0
Jul 31 12:19:49 lt kernel: [ 3542.639596] [<c037c155>]
tty_mode_ioctl+0xf5/0x4c0
Jul 31 12:19:49 lt kernel: [ 3542.639603] [<c010661a>] ? show_trace+0x1a/0x20
Jul 31 12:19:49 lt kernel: [ 3542.639612] [<c0568e0b>] ? printk+0x18/0x1d
Jul 31 12:19:49 lt kernel: [ 3542.639620] [<c013fb8a>] ?
print_oops_end_marker+0x2a/0x30
Jul 31 12:19:49 lt kernel: [ 3542.639627] [<c013fd8f>] ?
warn_slowpath_common+0x7f/0xa0
Jul 31 12:19:49 lt kernel: [ 3542.639635] [<c01244b8>] ?
default_spin_lock_flags+0x8/0x10
Jul 31 12:19:49 lt kernel: [ 3542.639644] [<c056b1ca>] ?
_spin_lock_irqsave+0x2a/0x40
Jul 31 12:19:49 lt kernel: [ 3542.639652] [<c037c555>]
n_tty_ioctl_helper+0x35/0x180
Jul 31 12:19:49 lt kernel: [ 3542.639659] [<c03794de>] n_tty_ioctl+0x2e/0xe0
Jul 31 12:19:49 lt kernel: [ 3542.639667] [<c037752e>] tty_ioctl+0xae/0x620
Jul 31 12:19:49 lt kernel: [ 3542.639674] [<c03794b0>] ? n_tty_ioctl+0x0/0xe0
Jul 31 12:19:49 lt kernel: [ 3542.639681] [<c0377480>] ? tty_ioctl+0x0/0x620
Jul 31 12:19:49 lt kernel: [ 3542.639688] [<c01ee1cc>] vfs_ioctl+0x1c/0x90
Jul 31 12:19:49 lt kernel: [ 3542.639695] [<c01ee4f1>] do_vfs_ioctl+0x71/0x310
Jul 31 12:19:49 lt kernel: [ 3542.639701] [<c01ee7ef>] sys_ioctl+0x5f/0x80
Jul 31 12:19:49 lt kernel: [ 3542.639708] [<c010334c>] syscall_call+0x7/0xb
Jul 31 12:19:49 lt kernel: [ 3542.639713] ---[ end trace 6a5e760f12c5cfbb ]---
Jul 31 12:19:49 lt kernel: [ 3542.641471] *pde = 7f9e3067
Jul 31 12:19:49 lt kernel: [ 3542.641500] Modules linked in: option usbserial
hid_microsoft usbhid cbc aes_i586 aes_generic binfmt_misc ppdev vboxnetadp
vboxnetflt vboxdrv coretemp lp parport snd_hda_codec_idt joydev snd_hda_intel
snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy snd_seq_oss
snd_seq_midi ecb snd_rawmidi iwl3945 snd_seq_midi_event psmouse iwlcore snd_seq
pcmcia snd_timer snd_seq_device mac80211 snd yenta_socket led_class soundcore
rsrc_nonstatic snd_page_alloc cfg80211 pcmcia_core serio_raw nvidia(P) dell_wmi
dell_laptop dcdbas tg3 dm_raid45 xor fbcon tileblit font bitblit softcursor
i915 drm i2c_algo_bit video output intel_agp agpgart
Jul 31 12:19:49 lt kernel: [ 3542.641705]
Jul 31 12:19:49 lt kernel: [ 3542.641715] Pid: 17066, comm: pppd Tainted: P
W (2.6.31-4-generic #23-Ubuntu) Latitude D620
Jul 31 12:19:49 lt kernel: [ 3542.641724] EIP: 0060:[<f87942e3>] EFLAGS:
00010246 CPU: 0
Jul 31 12:19:49 lt kernel: [ 3542.641736] EIP is at serial_tiocmset+0x23/0xa0
[usbserial]
Jul 31 12:19:49 lt kernel: [ 3542.641744] EAX: f560d800 EBX: f560d800 ECX:
00000000 EDX: 00000000
Jul 31 12:19:49 lt kernel: [ 3542.641752] ESI: 00000000 EDI: f5746980 EBP:
efbb1f1c ESP: efbb1efc
Jul 31 12:19:49 lt kernel: [ 3542.641759] DS: 007b ES: 007b FS: 00d8 GS: 00e0
SS: 0068
Jul 31 12:19:49 lt kernel: [ 3542.641779] 000000bc 00000002 ee5dfcc0 efbb1f78
c01e1739 f8797fe0 f560d800 f5746980
Jul 31 12:19:49 lt kernel: [ 3542.641804] <0> efbb1f50 c0377798 00000002
09801a38 f560d800 bfe493e4 00005417 00000000
Jul 31 12:19:49 lt kernel: [ 3542.641834] <0> 00000286 efbb1f5c c0377480
c05984e0 bfe493e4 efbb1f70 c01ee1cc ed406000
Jul 31 12:19:49 lt kernel: [ 3542.641877] [<c01e1739>] ?
do_readv_writev+0x149/0x1c0
Jul 31 12:19:49 lt kernel: [ 3542.641888] [<c0377798>] ? tty_ioctl+0x318/0x620
Jul 31 12:19:49 lt kernel: [ 3542.641899] [<c0377480>] ? tty_ioctl+0x0/0x620
Jul 31 12:19:49 lt kernel: [ 3542.641909] [<c01ee1cc>] ? vfs_ioctl+0x1c/0x90
Jul 31 12:19:49 lt kernel: [ 3542.641919] [<c01e9766>] ? putname+0x26/0x40
Jul 31 12:19:49 lt kernel: [ 3542.641929] [<c01ee4f1>] ?
do_vfs_ioctl+0x71/0x310
Jul 31 12:19:49 lt kernel: [ 3542.641939] [<c01e17f5>] ? vfs_writev+0x45/0x60
Jul 31 12:19:49 lt kernel: [ 3542.641949] [<c01ee7ef>] ? sys_ioctl+0x5f/0x80
Jul 31 12:19:49 lt kernel: [ 3542.641959] [<c010334c>] ? syscall_call+0x7/0xb
--
4>[1266824.056544] WARNING: at
/build/buildd/linux-2.6.27/drivers/usb/serial/usb-serial.c:311
serial_write+0xa4/0xb0 [usbserial]()
https://bugs.launchpad.net/bugs/303815
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