Re: BUG: soft lockup - CPU#3 stuck for 22s! [httpd:1889]

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3.12.5-302.fc20.x86_64 x 2

 ------------[ cut here ]------------
 WARNING: CPU: 3 PID: 17822 at drivers/usb/host/ehci-hcd.c:1027
ehci_endpoint_reset+0x101/0x110()
 clear_halt for a busy endpoint
 Call Trace:
  [<ffffffff81662d11>] dump_stack+0x45/0x56
  [<ffffffff810691dd>] warn_slowpath_common+0x7d/0xa0
  [<ffffffff8106924c>] warn_slowpath_fmt+0x4c/0x50
  [<ffffffff8147a054>] ? usb_control_msg+0xd4/0x110
  [<ffffffff81492ba1>] ehci_endpoint_reset+0x101/0x110
  [<ffffffff81478ab5>] usb_hcd_reset_endpoint+0x25/0x70
  [<ffffffff8147aac8>] usb_reset_endpoint+0x28/0x40
  [<ffffffff8147ab4e>] usb_clear_halt+0x6e/0x80
  [<ffffffff81485ccf>] usbdev_do_ioctl+0xbbf/0x1060
  [<ffffffffa0582b57>] ? supdrvIOCtlFast+0x77/0xa0 [vboxdrv]
  [<ffffffff8148619e>] usbdev_ioctl+0xe/0x20
  [<ffffffff811c0bbd>] do_vfs_ioctl+0x2dd/0x4b0
  [<ffffffff811c0e11>] SyS_ioctl+0x81/0xa0
  [<ffffffff81671d69>] system_call_fastpath+0x16/0x1b
 ---[ end trace 93ba77ce337e7f42 ]---


 ------------[ cut here ]------------
 WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:264
dev_watchdog+0x266/0x270()
 NETDEV WATCHDOG: enp0s4f0u2c3i8 (cdc_ether): transmit queue 0 timed out
 Call Trace:
  <IRQ>  [<ffffffff81662d11>] dump_stack+0x45/0x56
  [<ffffffff810691dd>] warn_slowpath_common+0x7d/0xa0
  [<ffffffff8106924c>] warn_slowpath_fmt+0x4c/0x50
  [<ffffffff810818ba>] ? __queue_work+0x12a/0x310
  [<ffffffff81585746>] dev_watchdog+0x266/0x270
  [<ffffffff815854e0>] ? dev_graft_qdisc+0x80/0x80
  [<ffffffff81074e26>] call_timer_fn+0x36/0x110
  [<ffffffff815854e0>] ? dev_graft_qdisc+0x80/0x80
  [<ffffffff810754ba>] run_timer_softirq+0x1ea/0x290
  [<ffffffff8106e747>] __do_softirq+0xf7/0x240
  [<ffffffff8167361c>] call_softirq+0x1c/0x30
  [<ffffffff810146a5>] do_softirq+0x55/0x90
  [<ffffffff8106ea25>] irq_exit+0xb5/0xc0
  [<ffffffff81673fc5>] smp_apic_timer_interrupt+0x45/0x60
  [<ffffffff8167295d>] apic_timer_interrupt+0x6d/0x80
  <EOI>  [<ffffffff8104e486>] ? native_safe_halt+0x6/0x10
  [<ffffffff8101b0bf>] default_idle+0x1f/0xc0
  [<ffffffff8101b1dd>] amd_e400_idle+0x7d/0x110
  [<ffffffff8101b996>] arch_cpu_idle+0x26/0x30
  [<ffffffff810b9765>] cpu_startup_entry+0xe5/0x280
  [<ffffffff8103fb58>] start_secondary+0x218/0x2c0
 ---[ end trace 554a9463b4511f31 ]---


poma


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