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[Qemu-devel] [Bug 1301047] Re: Windows guest freezes while using USB pas


From: zelluz
Subject: [Qemu-devel] [Bug 1301047] Re: Windows guest freezes while using USB passthrough.
Date: Sat, 05 Apr 2014 00:15:56 -0000

** Description changed:

  I have the following issue with my Windows 8.1 guest. (Technical stuff
  is at the bottom):
  
  I have vfio-binded my graphics card(NVIDIA GTX670) and is passing it through 
to the guest.
  I run heavy 3D applications such as games(Guild Wars 2, Diablo 3, DOTA etc) 
which works fine(performance is about <90% of a "physical" Windows).
  
  When it comes to Rocksmith 2014 things starts to act up. I can play the
  game just as good as any other game in the guest(passing through the USB
  Rocksmith Cable and audio is working perfect), however when I exit the
  application the guest freezes completely up. I loose contact via
  Synergy(mouse/keyboard), I cant ping the guest, the screen
  freezes(always freezing before I see the desktop again), CPU usage of
  the processes drops down to 0. The memory dedicated to the guest is
  latent/in use though, as reported by htop/free -m.
  
  This also happens when I go to my sound settings-> record settings(where
  I can see the Rocksmith cable, as it is a recorder). The vm will freeze
  up after a couple of seconds being in that menu.
  
  If I remove the USB device from my qemu command and go into my sound
  settings->record settings there are no freezing issues.
  
+ The guest will however not freeze up while browsing through device
+ manager and looking at the USB Rocksmith Cable from there.
+ 
  My host(Arch Linux) works fine while the host is frozen up.
  
  Is it reproducible?
  Yes, every time the USB device is passed through, the guest will at some 
point lock up while the USB device are used/polled.
+ Tried with both USB 2.0 and USB 3.0 port with the same thing happening.
  
  Expected outcome:
  USB device works without freezing up the guest.
  
  Suggested solution(if at all possible):
  Somehow make the USB devices reconnect in the guest when the host is 
receiving the "ERROR Transfer event for disabled endpoint or incorrect stream 
ring" messages.
- Or, make it so that the guest can never lock up while this happens.
+ Or make it so that the guest can never lock up while this happens.
  
  If there is some more information you need, please do not hesitate to ask for 
it.
  Also, this is my first bug report so please be kind, I appreciate any 
feedback :)
  
  Technical Information:
  
  CPU: Intel(R) Core(TM) i7-4771 CPU @ 3.50GHz
  GPU: NVIDIA GTX 670, latest NVIDIA drivers installed in Windows.
  QEMU version: qemu-git 2.0.r31965.g63678e1-1
  Host Kernel: Linux 3.13.6-1-mainline x86_64
  Guest: Windows 8.1 Professional, fully updated as of 30th March 2014
  
  Qemu command line used:
  
  sudo -E qemu-system-x86_64 \
  -enable-kvm \
  -M q35 \
  -m 8G \
  -mem-path /dev/hugepages \
  -mem-prealloc \
  -cpu host \
  -smp 4,sockets=1,cores=4,threads=1 \
  -device vfio-pci,host=00:1b.0 \
  -bios /usr/share/qemu/bios.bin \
  -vga none \
  -device 
ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
  -device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \
  -nographic \
  -device ahci,bus=pcie.0,id=ahci \
  -drive 
file=/var/lib/libvirt/images/Windows8.1.img,id=disk,format=raw,cache=none \
  -device ide-hd,bus=ahci.0,drive=disk \
  -device vfio-pci,host=00:19.0,bus=pcie.0 \
  -drive file=/dev/sdb1,id=mmo,format=raw,cache=none \
  -device ide-hd,bus=ahci.1,drive=mmo \
  -drive 
file=/home/thor/Windows/Windows-Steam.img,id=steam,format=raw,cache=none \
  -usb -usbdevice host:045e:028e \
  -usb -usbdevice host:12ba:00ff \
  -net none \
  -device ide-hd,bus=ahci.2,drive=steam
  
  Strace output in the seconds leading up to the freeze:
  See attachment .
  
  Journalctl output on the host while the guest froze:
  
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe410 
fff9f480 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe420 
fff9f490 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe430 
fff9f4a0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe440 
fff9f4b0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe450 
fff9f4c0 00000000 0d00000a 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe460 
fff9f4d0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe470 
fff9f4e0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe480 
fff9f4f0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe490 
fff9f500 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4a0 
fff9f510 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4b0 
fff9f520 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4c0 
fff9f530 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4d0 
fff9f540 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4e0 
fff9f550 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4f0 
fff9f560 00000000 0d00000a 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe500 
fff9f570 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe510 
fff9f580 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe520 
fff9f590 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe530 
fff9f5a0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe540 
fff9f5b0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe550 
fff9f5c0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe560 
fff9f5d0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe570 
fff9f5e0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe580 
fff9f5f0 00000000 0d00000c 07058000
  Apr 01 22:05:46 ultimaarch kernel: INFO: task qemu-system-x86:10006 blocked 
for more than 120 seconds.
  Apr 01 22:05:46 ultimaarch kernel:       Not tainted 3.13.6-1-mainline #1
  Apr 01 22:05:46 ultimaarch kernel: "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Apr 01 22:05:46 ultimaarch kernel: qemu-system-x86 D ffff88080126fab0     0 
10006  10005 0x00000005
  Apr 01 22:05:46 ultimaarch kernel:  ffff88006fb81cf8 0000000000000086 
ffff88053a409b00 ffff88006fb81fd8
  Apr 01 22:05:46 ultimaarch kernel:  0000000000014400 0000000000014400 
ffff88053a409b00 ffffffff81219402
  Apr 01 22:05:46 ultimaarch kernel:  ffff880000000000 ffffffff81210000 
0000000000000282 ffff88006fb81cb0
  Apr 01 22:05:46 ultimaarch kernel: Call Trace:
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff81219402>] ? 
sysfs_addrm_finish+0xa2/0xc0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff81210000>] ? 
proc_pid_status+0x5b0/0x6e0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa019479c>] ? 
xhci_urb_dequeue+0x22c/0x360 [xhci_hcd]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff8138a0a7>] ? 
put_device+0x17/0x20
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff814f8b99>] schedule+0x29/0x70
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa0010b9d>] 
usb_kill_urb+0x5d/0xa0 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff810a2c30>] ? 
__wake_up_sync+0x20/0x20
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa000f6e5>] 
usb_hcd_flush_endpoint+0xb5/0x180 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa0012459>] 
usb_disable_endpoint+0x59/0x90 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa00124d6>] 
usb_disable_interface+0x46/0x60 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa0012a04>] 
usb_set_interface+0x194/0x360 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa001cc5b>] 
usbdev_do_ioctl+0xa0b/0x1050 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa001d2ce>] 
usbdev_ioctl+0xe/0x20 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff811b6350>] 
do_vfs_ioctl+0x2e0/0x4c0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff811b65b1>] SyS_ioctl+0x81/0xa0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff815046ff>] tracesys+0xe1/0xe6

-- 
You received this bug notification because you are a member of qemu-
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https://bugs.launchpad.net/bugs/1301047

Title:
  Windows guest freezes while using USB passthrough.

Status in QEMU:
  In Progress

Bug description:
  I have the following issue with my Windows 8.1 guest. (Technical stuff
  is at the bottom):

  I have vfio-binded my graphics card(NVIDIA GTX670) and is passing it through 
to the guest.
  I run heavy 3D applications such as games(Guild Wars 2, Diablo 3, DOTA etc) 
which works fine(performance is about <90% of a "physical" Windows).

  When it comes to Rocksmith 2014 things starts to act up. I can play
  the game just as good as any other game in the guest(passing through
  the USB Rocksmith Cable and audio is working perfect), however when I
  exit the application the guest freezes completely up. I loose contact
  via Synergy(mouse/keyboard), I cant ping the guest, the screen
  freezes(always freezing before I see the desktop again), CPU usage of
  the processes drops down to 0. The memory dedicated to the guest is
  latent/in use though, as reported by htop/free -m.

  This also happens when I go to my sound settings-> record
  settings(where I can see the Rocksmith cable, as it is a recorder).
  The vm will freeze up after a couple of seconds being in that menu.

  If I remove the USB device from my qemu command and go into my sound
  settings->record settings there are no freezing issues.

  The guest will however not freeze up while browsing through device
  manager and looking at the USB Rocksmith Cable from there.

  My host(Arch Linux) works fine while the host is frozen up.

  Is it reproducible?
  Yes, every time the USB device is passed through, the guest will at some 
point lock up while the USB device are used/polled.
  Tried with both USB 2.0 and USB 3.0 port with the same thing happening.

  Expected outcome:
  USB device works without freezing up the guest.

  Suggested solution(if at all possible):
  Somehow make the USB devices reconnect in the guest when the host is 
receiving the "ERROR Transfer event for disabled endpoint or incorrect stream 
ring" messages.
  Or make it so that the guest can never lock up while this happens.

  If there is some more information you need, please do not hesitate to ask for 
it.
  Also, this is my first bug report so please be kind, I appreciate any 
feedback :)

  Technical Information:

  CPU: Intel(R) Core(TM) i7-4771 CPU @ 3.50GHz
  GPU: NVIDIA GTX 670, latest NVIDIA drivers installed in Windows.
  QEMU version: qemu-git 2.0.r31965.g63678e1-1
  Host Kernel: Linux 3.13.6-1-mainline x86_64
  Guest: Windows 8.1 Professional, fully updated as of 30th March 2014

  Qemu command line used:

  sudo -E qemu-system-x86_64 \
  -enable-kvm \
  -M q35 \
  -m 8G \
  -mem-path /dev/hugepages \
  -mem-prealloc \
  -cpu host \
  -smp 4,sockets=1,cores=4,threads=1 \
  -device vfio-pci,host=00:1b.0 \
  -bios /usr/share/qemu/bios.bin \
  -vga none \
  -device 
ioh3420,bus=pcie.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 \
  -device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on \
  -nographic \
  -device ahci,bus=pcie.0,id=ahci \
  -drive 
file=/var/lib/libvirt/images/Windows8.1.img,id=disk,format=raw,cache=none \
  -device ide-hd,bus=ahci.0,drive=disk \
  -device vfio-pci,host=00:19.0,bus=pcie.0 \
  -drive file=/dev/sdb1,id=mmo,format=raw,cache=none \
  -device ide-hd,bus=ahci.1,drive=mmo \
  -drive 
file=/home/thor/Windows/Windows-Steam.img,id=steam,format=raw,cache=none \
  -usb -usbdevice host:045e:028e \
  -usb -usbdevice host:12ba:00ff \
  -net none \
  -device ide-hd,bus=ahci.2,drive=steam

  Strace output in the seconds leading up to the freeze:
  See attachment .

  Journalctl output on the host while the guest froze:

  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe410 
fff9f480 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe420 
fff9f490 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe430 
fff9f4a0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe440 
fff9f4b0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe450 
fff9f4c0 00000000 0d00000a 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe460 
fff9f4d0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe470 
fff9f4e0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe480 
fff9f4f0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe490 
fff9f500 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4a0 
fff9f510 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4b0 
fff9f520 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4c0 
fff9f530 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4d0 
fff9f540 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4e0 
fff9f550 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe4f0 
fff9f560 00000000 0d00000a 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe500 
fff9f570 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe510 
fff9f580 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe520 
fff9f590 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe530 
fff9f5a0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe540 
fff9f5b0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe550 
fff9f5c0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe560 
fff9f5d0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe570 
fff9f5e0 00000000 0d00000c 07058000
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: ERROR Transfer 
event for disabled endpoint or incorrect stream ring
  Apr 01 22:03:19 ultimaarch kernel: xhci_hcd 0000:00:14.0: @00000000ffffe580 
fff9f5f0 00000000 0d00000c 07058000
  Apr 01 22:05:46 ultimaarch kernel: INFO: task qemu-system-x86:10006 blocked 
for more than 120 seconds.
  Apr 01 22:05:46 ultimaarch kernel:       Not tainted 3.13.6-1-mainline #1
  Apr 01 22:05:46 ultimaarch kernel: "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
  Apr 01 22:05:46 ultimaarch kernel: qemu-system-x86 D ffff88080126fab0     0 
10006  10005 0x00000005
  Apr 01 22:05:46 ultimaarch kernel:  ffff88006fb81cf8 0000000000000086 
ffff88053a409b00 ffff88006fb81fd8
  Apr 01 22:05:46 ultimaarch kernel:  0000000000014400 0000000000014400 
ffff88053a409b00 ffffffff81219402
  Apr 01 22:05:46 ultimaarch kernel:  ffff880000000000 ffffffff81210000 
0000000000000282 ffff88006fb81cb0
  Apr 01 22:05:46 ultimaarch kernel: Call Trace:
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff81219402>] ? 
sysfs_addrm_finish+0xa2/0xc0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff81210000>] ? 
proc_pid_status+0x5b0/0x6e0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa019479c>] ? 
xhci_urb_dequeue+0x22c/0x360 [xhci_hcd]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff8138a0a7>] ? 
put_device+0x17/0x20
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff814f8b99>] schedule+0x29/0x70
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa0010b9d>] 
usb_kill_urb+0x5d/0xa0 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff810a2c30>] ? 
__wake_up_sync+0x20/0x20
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa000f6e5>] 
usb_hcd_flush_endpoint+0xb5/0x180 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa0012459>] 
usb_disable_endpoint+0x59/0x90 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa00124d6>] 
usb_disable_interface+0x46/0x60 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa0012a04>] 
usb_set_interface+0x194/0x360 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa001cc5b>] 
usbdev_do_ioctl+0xa0b/0x1050 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffffa001d2ce>] 
usbdev_ioctl+0xe/0x20 [usbcore]
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff811b6350>] 
do_vfs_ioctl+0x2e0/0x4c0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff811b65b1>] SyS_ioctl+0x81/0xa0
  Apr 01 22:05:46 ultimaarch kernel:  [<ffffffff815046ff>] tracesys+0xe1/0xe6

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