Hello ! I get a kernel failure with the following backtrace during the initial kernel load at startup. I am using an FTDI USB2serial converter. Any idea on how to avoid this ? Greetings, Guido Trentalancia ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room +0x70/0x80 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede4b0>] serial_write_room+0x70/0x80 [usbserial] [<c0612c4b>] ? tty_put_char+0x2b/0x30 [<c0619ea8>] tty_write_room+0x18/0x20 [<c06168c5>] process_echoes+0x45/0x2b0 [<c0618801>] ? echo_char+0x71/0x1f0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c3325955b ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c0612c4b>] tty_put_char+0x2b/0x30 [<c0616731>] do_output_char+0xf1/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c3325955c ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c0612c4b>] tty_put_char+0x2b/0x30 [<c0616731>] do_output_char+0xf1/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c3325955d ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c0612c4b>] tty_put_char+0x2b/0x30 [<c0616731>] do_output_char+0xf1/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c3325955e ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c0612c4b>] tty_put_char+0x2b/0x30 [<c0616731>] do_output_char+0xf1/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c3325955f ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c0612c4b>] tty_put_char+0x2b/0x30 [<c0616731>] do_output_char+0xf1/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259560 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room +0x70/0x80 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede4b0>] serial_write_room+0x70/0x80 [usbserial] [<c0612c4b>] ? tty_put_char+0x2b/0x30 [<c0619ea8>] tty_write_room+0x18/0x20 [<c06168c5>] process_echoes+0x45/0x2b0 [<c0618564>] ? echo_char_raw+0x64/0x260 [<c0619d5c>] n_tty_receive_buf+0x13dc/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259561 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room +0x70/0x80 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede4b0>] serial_write_room+0x70/0x80 [usbserial] [<c0612c4b>] ? tty_put_char+0x2b/0x30 [<c0619ea8>] tty_write_room+0x18/0x20 [<c06168c5>] process_echoes+0x45/0x2b0 [<c0618564>] ? echo_char_raw+0x64/0x260 [<c0619d5c>] n_tty_receive_buf+0x13dc/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259562 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room +0x70/0x80 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede4b0>] serial_write_room+0x70/0x80 [usbserial] [<c0612c4b>] ? tty_put_char+0x2b/0x30 [<c0619ea8>] tty_write_room+0x18/0x20 [<c06168c5>] process_echoes+0x45/0x2b0 [<c0618564>] ? echo_char_raw+0x64/0x260 [<c0619d5c>] n_tty_receive_buf+0x13dc/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259563 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:406 serial_write_room +0x70/0x80 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<ccede4b0>] ? serial_write_room+0x70/0x80 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede4b0>] serial_write_room+0x70/0x80 [usbserial] [<c0612c4b>] ? tty_put_char+0x2b/0x30 [<c0619ea8>] tty_write_room+0x18/0x20 [<c06168c5>] process_echoes+0x45/0x2b0 [<c0618801>] ? echo_char+0x71/0x1f0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259564 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c06167f8>] do_output_char+0x1b8/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259565 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c06167f8>] do_output_char+0x1b8/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259566 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<c06167f8>] do_output_char+0x1b8/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259567 ]--- ------------[ cut here ]------------ WARNING: at drivers/usb/serial/usb-serial.c:393 serial_write+0x9f/0xb0 [usbserial]() Hardware name: S1730 Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs sunrpc ipt_MASQUERADE iptable_nat nf_nat ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 dm_multipath uinput arc4 ecb snd_cs4281 snd_rawmidi b43 snd_ac97_codec mac80211 cfg80211 ac97_bus snd_seq_dummy rfkill snd_seq_oss snd_seq_midi_event ssb snd_seq mmc_core snd_pcm_oss snd_mixer_oss ppdev snd_pcm snd_page_alloc snd_opl3_lib snd_seq_device snd_timer snd_hwdep ftdi_sio snd parport_pc uvcvideo usbserial videodev v4l1_compat parport i2c_piix4 pcspkr i2c_core yenta_socket rtl8150 rsrc_nonstatic soundcore ata_generic pata_acpi ehci_hcd [last unloaded: freq_table] Pid: 4, comm: events/0 Tainted: G W 2.6.32.2 #1 Call Trace: [<c0439371>] warn_slowpath_common+0x71/0x100 [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<ccede55f>] ? serial_write+0x9f/0xb0 [usbserial] [<c0439415>] warn_slowpath_null+0x15/0x20 [<ccede55f>] serial_write+0x9f/0xb0 [usbserial] [<ccede510>] ? serial_write+0x50/0xb0 [usbserial] [<c0612c4b>] tty_put_char+0x2b/0x30 [<c0616731>] do_output_char+0xf1/0x1f0 [<c06169fd>] process_echoes+0x17d/0x2b0 [<c06192f2>] n_tty_receive_buf+0x972/0x14f0 [<c07ca4b7>] ? schedule+0x6b7/0xb50 [<c061c697>] flush_to_ldisc+0x187/0x1f0 [<c061c510>] ? flush_to_ldisc+0x0/0x1f0 [<c044bcf8>] worker_thread+0xd8/0x190 [<c044fdb0>] ? autoremove_wake_function+0x0/0x40 [<c044bc20>] ? worker_thread+0x0/0x190 [<c044fa84>] kthread+0x74/0x80 [<c044fa10>] ? kthread+0x0/0x80 [<c0403f63>] kernel_thread_helper+0x7/0x14 ---[ end trace 55c6768c33259568 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
