Distribution: Debian Unstable Hardware Environment: Inspiron 1520 with a Openmoko freerunner phone linked to it via an usb port. the phone is running a 2.6.24 kernel configured to be recognized as a cdc_ether device. Problem Description: I booted my system without X, and saw this warning when it was idle: [ 62.069616] NETDEV WATCHDOG: usb0: transmit timed out [ 62.070015] ------------[ cut here ]------------ [ 62.070389] WARNING: at net/sched/sch_generic.c:222 dev_watchdog+0x8c/0xde() [ 62.070758] Modules linked in: rfcomm l2cap bluetooth fuse cdc_ether usbnet uvcvideo compat_ioctl32 videodev v4l1_compat arc4 ecb snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_oss snd_seq_midi_event snd_seq snd_timer snd_seq_device snd ehci_hcd iwl3945 b44 ssb uhci_hcd soundcore snd_page_alloc mac80211 sdhci i2c_i801 ohci1394 mii mmc_core i2c_core dcdbas wmi ricoh_mmc usbcore ieee1394 cfg80211 button psmouse pcspkr [ 62.071371] Pid: 0, comm: swapper Not tainted 2.6.26.3batchyx6.0 #1 [ 62.071371] [<c02e93da>] ? printk+0xf/0x15 [ 62.071371] [<c0121d7d>] warn_on_slowpath+0x41/0x7b [ 62.071371] [<c02eb614>] ? _spin_unlock_irqrestore+0x1c/0x1e [ 62.071371] [<c0119b05>] ? __wake_up+0x31/0x3b [ 62.071371] [<c0122303>] ? wake_up_klogd+0x2e/0x31 [ 62.071371] [<c02eb614>] ? _spin_unlock_irqrestore+0x1c/0x1e [ 62.071371] [<f88c3c5b>] ? uhci_urb_dequeue+0x147/0x152 [uhci_hcd] [ 62.071371] [<f88aa270>] ? unlink1+0xae/0xb9 [usbcore] [ 62.071371] [<f88aa359>] ? usb_hcd_unlink_urb+0x15/0x22 [usbcore] [ 62.071371] [<c02eb614>] ? _spin_unlock_irqrestore+0x1c/0x1e [ 62.071371] [<f89ad0a8>] ? unlink_urbs+0x44/0x4d [usbnet] [ 62.071371] [<f89ad12a>] ? usbnet_tx_timeout+0x33/0x36 [usbnet] [ 62.071371] [<c0296917>] dev_watchdog+0x8c/0xde [ 62.071371] [<c012953d>] run_timer_softirq+0x13b/0x19b [ 62.071371] [<c029688b>] ? dev_watchdog+0x0/0xde [ 62.071371] [<c029688b>] ? dev_watchdog+0x0/0xde [ 62.071371] [<c0126203>] __do_softirq+0x70/0xd5 [ 62.071371] [<c012629d>] do_softirq+0x35/0x3a [ 62.071688] [<c0126405>] irq_exit+0x38/0x75 [ 62.071688] [<c01104d6>] smp_apic_timer_interrupt+0x70/0x7e [ 62.071688] [<c02783d8>] ? cpuidle_idle_call+0x0/0x89 [ 62.071688] [<c010444c>] apic_timer_interrupt+0x28/0x30 [ 62.071688] [<c02783d8>] ? cpuidle_idle_call+0x0/0x89 [ 62.071688] [<c027007b>] ? input_handle_event+0x1c0/0x37c [ 62.071688] [<c02700d8>] ? input_handle_event+0x21d/0x37c [ 62.071688] [<c0102a36>] ? cpu_idle+0x2f/0xc1 [ 62.071688] [<c02dd406>] rest_init+0x62/0x64 [ 62.071688] ======================= [ 62.071688] ---[ end trace faee8fbae8343381 ]--- (probably unrelated : the phone had received an SMS) i found another bug (#10109) with a similar warning but i did not lose the connection to the phone. i can't reproduce this warning.
Created attachment 17547 [details] full dmesg output
just happened to me when i plugged my shutdown freerunner into my usb port. kerneloops here: http://www.kerneloops.org/submitresult.php?number=65490 Usually the phone starts booting up when plugged into the usb jack, but this time it just sat there dead until I manually hit the power button.
All USB bugs should be sent to the linux-usb@vger.kernel.org mailing list, and not entered into bugzilla. Please bring this issue up there, if it is still a problem in the latest kernel release.