*** This bug is a duplicate of bug 746717 ***
https://bugs.launchpad.net/bugs/746717
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/763327
Title:
WARNING: at /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256
dev_watchdog+0x213/0x220()
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
I attempted to use my iPhone 4 iOS4.3 as an internet modem on my
installation of Ubuntu 11.04 beta 2
I plugged my iPhone usb cord to my laptop USB port and iPhone mounted
successfully.
turned on the iPhone Personal Hotspot and on my Ubuntu I went to
network manager and clicked on Auto Ethernet which is the iPhone modem
name recognized. After I clicked on it the network icon pulsed and the
error box popped.
Here's content of dmesg command I issued in the terminal:
[ 19.059650] ppdev: user-space parallel port driver
[ 20.055225] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[ 23.575147] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
[ 112.876140] usb 1-2: new high speed USB device using ehci_hcd and address 4
[ 113.317704] ipheth 1-2:4.2: Apple iPhone USB Ethernet device attached
[ 113.318374] usbcore: registered new interface driver ipheth
[ 113.385521] ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 115.042210] show_signal_msg: 24 callbacks suppressed
[ 115.042217] iphone-set-info[1543]: segfault at 8 ip 00932706 sp bfe20154
error 4 in libc-2.13.so[8b8000+15a000]
[ 413.000761] ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
[ 418.016042] ------------[ cut here ]------------
[ 418.016063] WARNING: at
/build/buildd/linux-2.6.38/net/sched/sch_generic.c:256
dev_watchdog+0x213/0x220()
[ 418.016070] Hardware name: Compaq Presario C700 Notebook PC
[ 418.016076] NETDEV WATCHDOG: eth1 (ipheth): transmit queue 0 timed out
[ 418.016081] Modules linked in: ipheth parport_pc ppdev
snd_hda_codec_conexant arc4 binfmt_misc joydev snd_hda_intel snd_hda_codec
snd_hwdep i915 ath5k snd_pcm ath mac80211 hp_wmi uvcvideo drm_kms_helper
sparse_keymap snd_seq_midi snd_rawmidi videodev drm snd_seq_midi_event psmouse
snd_seq cfg80211 serio_raw snd_timer i2c_algo_bit snd_seq_device snd soundcore
snd_page_alloc video lp parport usb_storage uas ahci libahci 8139too 8139cp
[ 418.016179] Pid: 0, comm: swapper Not tainted 2.6.38-8-generic #42-Ubuntu
[ 418.016185] Call Trace:
[ 418.016199] [<c104f912>] ? warn_slowpath_common+0x72/0xa0
[ 418.016209] [<c144a073>] ? dev_watchdog+0x213/0x220
[ 418.016218] [<c144a073>] ? dev_watchdog+0x213/0x220
[ 418.016228] [<c104f9e3>] ? warn_slowpath_fmt+0x33/0x40
[ 418.016238] [<c144a073>] ? dev_watchdog+0x213/0x220
[ 418.016248] [<c1069231>] ? __queue_work+0xe1/0x360
[ 418.016259] [<c10b3d12>] ? rcu_report_qs_rnp+0x72/0x100
[ 418.016270] [<c105c76b>] ? call_timer_fn+0x2b/0xe0
[ 418.016279] [<c1127fc9>] ? file_free_rcu+0x29/0x30
[ 418.016287] [<c1127fc9>] ? file_free_rcu+0x29/0x30
[ 418.016296] [<c1449e60>] ? dev_watchdog+0x0/0x220
[ 418.016304] [<c105daa9>] ? run_timer_softirq+0xe9/0x1e0
[ 418.016314] [<c1449e60>] ? dev_watchdog+0x0/0x220
[ 418.016323] [<c1056622>] ? __do_softirq+0x82/0x170
[ 418.016332] [<c10565a0>] ? __do_softirq+0x0/0x170
[ 418.016337] <IRQ> [<c10567ed>] ? irq_exit+0x6d/0x80
[ 418.016355] [<c15107ab>] ? do_IRQ+0x4b/0xc0
[ 418.016365] [<c1003670>] ? common_interrupt+0x30/0x38
[ 418.016374] [<c10700d8>] ? do_cpu_nanosleep+0x38/0x1b0
[ 418.016386] [<c12e8db4>] ? arch_local_irq_enable+0x5/0xb
[ 418.016395] [<c12e9a9b>] ? acpi_idle_enter_bm+0x227/0x25e
[ 418.016422] [<c14061fd>] ? cpuidle_idle_call+0x7d/0x160
[ 418.016430] [<c10019ca>] ? cpu_idle+0x8a/0xc0
[ 418.016439] [<c1038d2e>] ? complete+0x4e/0x60
[ 418.016451] [<c14f0d2d>] ? rest_init+0x5d/0x70
[ 418.016462] [<c178d7e1>] ? start_kernel+0x35f/0x366
[ 418.016470] [<c178d3d5>] ? pass_all_bootoptions+0x0/0xa
[ 418.016480] [<c178d0e0>] ? i386_start_kernel+0xe0/0xe8
[ 418.016487] ---[ end trace 9607b312b2cf5e6b ]---
[ 418.016492] ipheth: ipheth_tx_timeout: TX timeout
[ 423.288052] eth1: no IPv6 routers present
ProblemType: KernelOops
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Annotation: Your system might become unstable now and might need to be
restarted.
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ariel 1336 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0x92400000 irq 43'
Mixer name : 'Conexant CX20561 (Hermosa)'
Components : 'HDA:14f15051,103c30d9,00100000'
Controls : 14
Simple ctrls : 7
Date: Sun Apr 17 14:08:17 2011
Failure: oops
HibernationDevice: RESUME=UUID=44eee9ff-a339-44fa-8fa5-d94a3331b637
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110413)
MachineType: Hewlett-Packard Compaq Presario C700 Notebook PC
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic
root=UUID=6835f953-5797-46ef-bf3c-7ad10f228ef4 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-8-generic N/A
linux-backports-modules-2.6.38-8-generic N/A
linux-firmware 1.50
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256
dev_watchdog+0x213/0x220()
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/25/2008
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.34
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 30D9
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 83.21
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.34:bd09/25/2008:svnHewlett-Packard:pnCompaqPresarioC700NotebookPC:pvrF.34:rvnHewlett-Packard:rn30D9:rvr83.21:cvnHewlett-Packard:ct10:cvrN/A:
dmi.product.name: Compaq Presario C700 Notebook PC
dmi.product.version: F.34
dmi.sys.vendor: Hewlett-Packard
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