Description of problem: happened when disabling a ppp connection over an ZTE USB-UMTS modem. Copying related log messages here: Jan 29 11:54:22 localhost nm-dispatcher.action[23593]: % Total % Received % Xferd Average Speed Time Time Time Current Jan 29 11:54:22 localhost nm-dispatcher.action[23593]: Dload Upload Total Spent Left Speed Jan 29 11:54:22 localhost nm-dispatcher.action[23593]: 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0#015100 17 0 0 100 17 0 5436 --:--:-- --:--:-- --:--:-- 8500 Jan 29 11:54:22 localhost logger: polipo configured as offline Jan 29 11:54:22 localhost logger: ttyUSB3 down Jan 29 11:54:22 localhost firewalld: 2014-01-29 11:54:22 ERROR: UNKNOWN_INTERFACE: ppp0 Jan 29 11:54:22 localhost NetworkManager[1018]: <warn> (ppp0) firewall zone remove failed: (32) UNKNOWN_INTERFACE: ppp0 Jan 29 11:54:25 localhost dbus-daemon[924]: modem-manager[1097]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (disconnecting -> registered) Jan 29 11:54:25 localhost modem-manager[1097]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (disconnecting -> registered) Jan 29 11:54:33 localhost kernel: [213398.213656] usb 1-6: USB disconnect, device number 8 Jan 29 11:54:33 localhost kernel: [213398.214649] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 Jan 29 11:54:33 localhost kernel: [213398.214682] option 1-6:1.0: device disconnected Jan 29 11:54:33 localhost kernel: [213398.215060] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.215068] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.215073] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.215078] option1 ttyUSB1: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.216215] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 Jan 29 11:54:33 localhost kernel: [213398.216245] option 1-6:1.1: device disconnected Jan 29 11:54:33 localhost kernel: [213398.217388] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 Jan 29 11:54:33 localhost kernel: [213398.217417] option 1-6:1.2: device disconnected Jan 29 11:54:33 localhost kernel: [213398.217435] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.219022] option1 ttyUSB3: option_instat_callback: error -108 Jan 29 11:54:33 localhost dbus-daemon[924]: modem-manager[1097]: <info> (ttyUSB1) closing serial port... Jan 29 11:54:33 localhost kernel: [213398.219935] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.219941] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.219944] option1 ttyUSB3: usb_wwan_indat_callback: resubmit read urb failed. (-19) Jan 29 11:54:33 localhost kernel: [213398.220156] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3 Jan 29 11:54:33 localhost kernel: [213398.220170] option 1-6:1.3: device disconnected Jan 29 11:54:33 localhost kernel: [213398.220249] qmi_wwan 1-6:1.4 wwp0s29f7u6i4: unregister 'qmi_wwan' usb-0000:00:1d.7-6, WWAN/QMI device Jan 29 11:54:33 localhost modem-manager[1097]: <info> (ttyUSB1) closing serial port... Jan 29 11:54:33 localhost modem-manager[1097]: <info> (ttyUSB1) serial port closed Jan 29 11:54:33 localhost kernel: [213398.221042] BUG: unable to handle kernel NULL pointer dereference at 00000020 Jan 29 11:54:33 localhost kernel: [213398.221106] IP: [<f9991388>] usb_wwan_write_room+0x28/0x90 [usb_wwan] Jan 29 11:54:33 localhost kernel: [213398.221157] *pdpt = 00000000256f9001 *pde = 0000000000000000 Jan 29 11:54:33 localhost kernel: [213398.221204] Oops: 0000 [#1] SMP Jan 29 11:54:33 localhost kernel: [213398.221232] Modules linked in: ppp_deflate bsd_comp ppp_async crc_ccitt ppp_generic slhc option usb_storage usb_wwan qmi_wwan cdc_wdm usbnet ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_jvc_decoder ir_sony_decoder ir_nec_decoder ir_rc6_decoder ir_rc5_decoder ir_sanyo_decoder smsdvb dvb_core rc_hauppauge smsusb smsmdtv rc_core fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT bnep bluetooth rfkill xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep gpio_ich coretemp snd_seq ppdev iTCO_wdt iTCO_vendor_support snd_seq_device snd_pcm snd_page_alloc snd_timer lpc_ich r8169 snd mfd_core i2c_i801 soundcore parport_pc mii serio_raw microcode parport acpi_cpufreq binfmt_misc uinput dm_crypt i915 video i2c_algo_bit drm_kms_helper drm i2c_core ata_generic pata_acpi Jan 29 11:54:33 localhost kernel: [213398.222011] CPU: 1 PID: 1097 Comm: modem-manager Not tainted 3.12.8-200.fc19.i686.PAE #1 Jan 29 11:54:33 localhost kernel: [213398.222011] CPU: 1 PID: 1097 Comm: modem-manager Not tainted 3.12.8-200.fc19.i686.PAE #1 Jan 29 11:54:33 localhost kernel: [213398.222011] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./945GCM-S, BIOS P1.10 11/17/2008 Jan 29 11:54:33 localhost kernel: [213398.222011] task: f516f980 ti: edf34000 task.ti: edf34000 Jan 29 11:54:33 localhost kernel: [213398.222011] EIP: 0060:[<f9991388>] EFLAGS: 00010246 CPU: 1 Jan 29 11:54:33 localhost kernel: [213398.222011] EIP is at usb_wwan_write_room+0x28/0x90 [usb_wwan] Jan 29 11:54:33 localhost kernel: [213398.222011] EAX: 00000000 EBX: 00000000 ECX: 00000001 EDX: 00000000 Jan 29 11:54:33 localhost kernel: [213398.222011] ESI: eb6e7db8 EDI: 00000000 EBP: edf35b78 ESP: edf35b54 Jan 29 11:54:33 localhost kernel: [213398.222011] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Jan 29 11:54:33 localhost kernel: [213398.222011] CR0: 80050033 CR2: 00000020 CR3: 2d827000 CR4: 000007f0 Jan 29 11:54:33 localhost kernel: [213398.222011] Stack: Jan 29 11:54:33 localhost kernel: [213398.222011] f5ba5120 edf35b84 c0518847 f5ba5120 00000000 ea5ca818 ea5ca800 eb6e7c00 Jan 29 11:54:33 localhost kernel: [213398.222011] 00000000 edf35b9c c082fe3e c09b4116 edf35bb4 c09b5097 edf35bdc c09b5bec Jan 29 11:54:33 localhost kernel: [213398.222011] ea5ca800 00000010 edf35ba4 c074d3e4 edf35bc0 c074a21d f9997000 e579d000 Jan 29 11:54:33 localhost kernel: [213398.222011] Call Trace: Jan 29 11:54:33 localhost kernel: [213398.222011] [<c0518847>] ? free_pages_prepare+0xf7/0x170 Jan 29 11:54:33 localhost kernel: [213398.222011] [<c082fe3e>] serial_write_room+0x2e/0x60 Jan 29 11:54:33 localhost kernel: [213398.222011] [<c09b4116>] ? _cond_resched+0x26/0x30 Jan 29 11:54:33 localhost kernel: [213398.222011] [<c09b5097>] ? ldsem_down_read+0x17/0x190 Jan 29 11:54:33 localhost kernel: [213398.222011] [<c09b5bec>] ? reschedule_interrupt+0x34/0x3c Additional info: reporter: libreport-2.1.11 BUG: unable to handle kernel NULL pointer dereference at 00000020 IP: [<f9991388>] usb_wwan_write_room+0x28/0x90 [usb_wwan] *pdpt = 00000000256f9001 *pde = 0000000000000000 Oops: 0000 [#1] SMP Modules linked in: ppp_deflate bsd_comp ppp_async crc_ccitt ppp_generic slhc option usb_storage usb_wwan qmi_wwan cdc_wdm usbnet ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_jvc_decoder ir_sony_decoder ir_nec_decoder ir_rc6_decoder ir_rc5_decoder ir_sanyo_decoder smsdvb dvb_core rc_hauppauge smsusb smsmdtv rc_core fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT bnep bluetooth rfkill xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep gpio_ich coretemp snd_seq ppdev iTCO_wdt iTCO_vendor_support snd_seq_device snd_pcm snd_page_alloc snd_timer lpc_ich r8169 snd mfd_core i2c_i801 soundcore parport_pc mii serio_raw microcode parport acpi_cpufreq binfmt_misc uinput dm_crypt i915 video i2c_algo_bit drm_kms_helper drm i2c_core ata_generic pata_acpi CPU: 1 PID: 1097 Comm: modem-manager Not tainted 3.12.8-200.fc19.i686.PAE #1 Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./945GCM-S, BIOS P1.10 11/17/2008 task: f516f980 ti: edf34000 task.ti: edf34000 EIP: 0060:[<f9991388>] EFLAGS: 00010246 CPU: 1 EIP is at usb_wwan_write_room+0x28/0x90 [usb_wwan] EAX: 00000000 EBX: 00000000 ECX: 00000001 EDX: 00000000 ESI: eb6e7db8 EDI: 00000000 EBP: edf35b78 ESP: edf35b54 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 CR0: 80050033 CR2: 00000020 CR3: 2d827000 CR4: 000007f0 Stack: f5ba5120 edf35b84 c0518847 f5ba5120 00000000 ea5ca818 ea5ca800 eb6e7c00 00000000 edf35b9c c082fe3e c09b4116 edf35bb4 c09b5097 edf35bdc c09b5bec ea5ca800 00000010 edf35ba4 c074d3e4 edf35bc0 c074a21d f9997000 e579d000 Call Trace: [<c0518847>] ? free_pages_prepare+0xf7/0x170 [<c082fe3e>] serial_write_room+0x2e/0x60 [<c09b4116>] ? _cond_resched+0x26/0x30 [<c09b5097>] ? ldsem_down_read+0x17/0x190 [<c09b5bec>] ? reschedule_interrupt+0x34/0x3c [<c074d3e4>] tty_write_room+0x14/0x30 [<c074a21d>] n_tty_poll+0x18d/0x1a0 [<c074a090>] ? __process_echoes+0x250/0x250 [<c07479cb>] tty_poll+0x5b/0x80 [<c074a090>] ? __process_echoes+0x250/0x250 [<c05743d6>] do_sys_poll+0x2d6/0x530 [<c059f0a1>] ? ep_poll_callback+0xc1/0x120 [<c0639192>] ? selinux_socket_unix_may_send+0x62/0x80 [<c047a6b7>] ? __wake_up_common+0x47/0x70 [<c0573240>] ? poll_select_copy_remaining+0x100/0x100 [<c08bbe3b>] ? sock_def_readable+0x3b/0x70 [<c095eebd>] ? unix_dgram_sendmsg+0x51d/0x5c0 [<c08b801e>] ? sock_sendmsg+0x6e/0x90 [<c08b6eb1>] ? sock_aio_write+0xd1/0xf0 [<c08b6a4c>] ? sockfd_lookup_light+0x1c/0x60 [<c08b86be>] ? SYSC_sendto+0x10e/0x130 [<c0599ae7>] ? fsnotify+0x1f7/0x2d0 [<c056352b>] ? do_readv_writev+0x18b/0x280 [<c05751dd>] ? d_free+0x3d/0x50 [<c08b8b1d>] ? SyS_sendto+0x2d/0x30 [<c08b8b5b>] ? SyS_send+0x3b/0x40 [<c04a659f>] ? ktime_get_ts+0x3f/0x100 [<c057347e>] ? poll_select_set_timeout+0x5e/0x70 [<c05746d4>] SyS_poll+0x54/0xc0 [<c09bcb0d>] sysenter_do_call+0x12/0x28 Code: 00 00 00 55 89 e5 57 56 53 83 e4 f8 83 ec 14 66 66 66 66 90 31 db 8b b0 a4 01 00 00 81 c6 b8 01 00 00 89 f0 e8 da 4c df c6 31 d2 <8b> 4c 90 20 85 c9 74 11 0f a3 50 40 19 ff 8d 8b 00 10 00 00 85
Created attachment 858239 [details] File: dmesg
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 19 kernel bugs. Fedora 19 has now been rebased to 3.13.5-100.fc19. Please test this kernel update and let us know if you issue has been resolved or if it is still present with the newer kernel. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 4 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.