[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Jonny Giger]

I am having this same problem with Xubuntu 20.04 kernel 5.4.0-60-generic

As soon as I plug in the wifi adapter, all terminal commands hang, no
programs open, and shutdown hangs.

Interface: wlxe84e06584470
Driver: mt76x2u

lsusb:
Bus 001 Device 004: ID 0e8d:7612 MediaTek Inc. 802.11ac WLAN

dmesg:
INFO: task kworker/u12:4:200 blocked for more than 120 seconds.
Tainted: P   OE   5.4.0-60-generic #67-Ubuntu

Workqueue: phy0 ieee80211_iface_work [mac80211]

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Pedi]

I can confirm that the bug still exits in kernel: 5.3.0-28-generic (in
my case with Linux Mint 19.3)

Sony Vaio product: VPCSE2J9E v: C60A4YXE 
Intel Centrino Advanced-N 6230 [Rainbow Peak] driver: iwlwifi

I tried the workaround by @massimo-bacilieri (thanks!) manually and this
worked fine.

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[William Trammell]

Power cycling does not appear to trigger the bug, as well as attempting
to recreate the original circumstances (turning off wireless through
system tray + shutdown).

Specs:
Dell Inspiron 17 3000 (Reg Model P35E)
Ubuntu 18.04.1, kernel 5.0.0-36-generic
Qualcomm Atheros QCA9377 wireless adapter

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[William Trammell]

Bug also possibly found on 18.04, kernel 5.0.0-36-generic; will need
confirmation. (First occurrence)

** Attachment added: "20191201_012839.jpg"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1724317/+attachment/5309037/+files/20191201_012839.jpg

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Sherri W]

Bug appears to have returned for Ubuntu 16.04 in kernel
4.4.0-169-generic. Also happens in 4.4.0-168.

Does not occur with 4.4.0-166.

All apt updates installed.

** Attachment added: "Error Log from shutdown screen."
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1724317/+attachment/5308471/+files/kworker-error.jpg

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Massimo Bacilieri]

SOLVED.
Starting from your suggestion, having I a rtl8723be based wifi card, I made a 
simple test:

$ sudo su
# service network-manager stop
# modprobe -r rtl8723be
# modprobe -r rtl8723_common rtl_pci
# modprobe -r rtlwifi
# killall -9 wpa_supplicant

then shutdown: the system halted perfectly. I retryed several time, and
always worked.

So, simply, I made a script in /usr/local/sbin/wireless-stop.sh:

#!/bin/bash
service network-manager stop
modprobe -r rtl8723be
modprobe -r rtl8723_common rtl_pci
modprobe -r rtlwifi
killall -9 wpa_supplicant

then an entry in /etc/init.d/wireless:

#!/bin/sh
### BEGIN INIT INFO
# Provides:  wireless
# Required-Start:
# Required-Stop:
# Default-Start:
# Default-Stop:  0 6
# Short-Description: unload wifi modules
### END INIT INFO
PATH=/sbin:/bin:/usr/sbin:/usr/bin
case "$1" in
start)
# do nothing at start
;;
stop)
log_daemon_msg "Removing wifi modules from kernel"
/usr/local/sbin/wireless-stop.sh
;;
restart|force-reload)
# do nothing at restart and reload
;;
status)
# no mean to ask for a status.
;;
*)
echo "Usage: /etc/init.d/wireless stop"
exit 1
;;
esac

then, just symlink in /etc/rc0.d (shutdown) and /etc/rc6.d (restart):

# cd /etc/rc0.d && ln -s /etc/init.d/wireless K00wireless
# cd /etc/rc6.d && ln -s /etc/init.d/wireless K00wireless

et voilà. Shutdown and restart now works.

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[gernophil]

The new bug seems to be related to the proprietary nVidia Driver
(384.90). I don't have anymore poweroff problems when I use prime-select
intel. However, this is not related to this bug.

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[gernophil]

After the kernel update I was able to shutdown succesfully two times.
Without taking any further chances I'm now stuck at the poweroff again.
I only see the blinking cursor on the top right corner that normally
apears before the splash screen shows up. Seems to be another poweroff
bug.

@Sebastian Thürrschmidt: Thanks for the clarification

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Slava]

Kernel update 4.13.0-17 fixed bug for me.

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Bougron]

hello
A saw a user with 4.13.0-17
"menuentry 'Ubuntu' --cls-uuid --set=root f0641efe-a392-4030-8271-de6b3db19912
.
linux   /boot/vmlinuz-4.13.0-17-generic.efi.signed 
root=UUID=f0641efe-a392-4030-8271-de6b3db19912 ro  quiet splash pci=noaer 
$vt_handoff
initrd  /boot/initrd.img-4.13.0-17-generic

he can't shutdown because
INFO: Task kworker   blocked for more than 120 seconds
INFO: Task thermald  blocked for more than 120 seconds

https://pix.tdct.org/upload/original/1511441932.jpg

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Sebastian Thürrschmidt]

For me everything's fine after yesterday's kernel update. Shutdown and
suspend work as expected. So this bug seems to have been fixed indeed,
for the Qualcomm Atheros QCA9377 chip at least.

The current kernel (4.13.0-17-generic #20-Ubuntu SMP Mon Nov 6 10:04:08)
appears to be unchanged from the one I previously tried to install from
proposed, so I guess the boot problems that I encountered where due to
some mistake of my own.

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Harry Bear]

My hardware by the way is an Asus Zenbook pro laptop with the Intel dual
band wireless-AC 7260  adapter and nvidia GTX 960M

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Harry Bear]

Been lurking on this bug and hoped it would be fixed with the new
4.13.0-17 kernel update, which I just installed after wrestling with the
unreliable apt-get mechanisms for over an hour by the way (but that's a
topic for another bug) but no such luck.  This buggy beast is still
hanging on shutdown with the 4.13.0-17 kernel.

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Sebastian Thürrschmidt]

@gernophil: If by a "new kernel release" you mean Linux 4.14, you won't
see that in artful. That's not how kernel updates are done in Ubuntu.
For more details see https://wiki.ubuntu.com/Kernel/FAQ.

Back to the bug in question. I have an Acer Aspire E5-573 32DN laptop
with a Qualcomm Atheros QCA9377 wireless adapter that suffers from the
symptoms described in here. It runs fine with the 4.13.10-041310
mainline kernel, as suggested above.

I also tried the kernel packages from -proposed (4.13.0-17.20) but those
wouldn't even boot right. Did anybody else have more success?

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[gernophil]

So, there has been a new kernel release today. Can we expect an update
for this Ubuntu release or do we have to wait for the next Ubuntu
version? Anything official about this bug?

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Re: [Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Kai-Heng Feng]

> On 9 Nov 2017, at 11:19 PM, Menachem Shapiro  
> wrote:
> 
> I just updated to Lubuntu 17.10 and experienced this issue. I have a
> Qualcomm Atheros QCA9377 card, and kernel version 4.13.0-16-generic had
> this same issue. I reverted back to 4.10.0-38-generic and the problem
> went away.
> 
> I'm waiting for the next kernel release to see if that solves the
> problem.

The Linux kernel in -proposed should fix the issue.

> 
> See also this thread: https://askubuntu.com/questions/965856/kworker-
> blocked-for-more-than-120-seconds-ubuntu-17-10/967440
> 
> -- 
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> in Ubuntu.
> https://bugs.launchpad.net/bugs/1724317
> 
> Title:
>  Shutdown hangs / no standby - possible Wifi-bug in the kernel
> 
> Status in linux package in Ubuntu:
>  Confirmed
> 
> Bug description:
>  The Shutdown-process hangs. After about two minutes the following
>  message is displayed:
> 
>  Oct 17 18:47:06 Kahlan kernel: [  363.170588] INFO: task kworker/u8:2:186 
> blocked for more than 120 seconds.
>  Oct 17 18:47:06 Kahlan kernel: [  363.170592]   Tainted: P   OE  
>  4.13.0-12-generic #13-Ubuntu
>  Oct 17 18:47:06 Kahlan kernel: [  363.170593] "echo 0 > 
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> 
>  Two Minutes later this message is displayed:
>  Oct 17 18:49:07 Kahlan kernel: [  484.008650] INFO: task kworker/u8:2:186 
> blocked for more than 120 seconds.
>  Oct 17 18:49:07 Kahlan kernel: [  484.008659]   Tainted: P   OE  
>  4.13.0-12-generic #13-Ubuntu
>  Oct 17 18:49:07 Kahlan kernel: [  484.008662] "echo 0 > 
> /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> 
>  This message repeates itself. If I am lucky, my laptop shuts down
>  after some time.
> 
>  Also standby does not work. I think my wifi-adapter causes this
>  problem.
> 
>  With Ubuntu 17.04 or Suse 42.3 I cannot reproduce this problem. I
>  found a bug report in the Arch Bug System
>  (https://bugs.archlinux.org/task/55872
> 
>  In my laptop I have also a Qualcomm Atheros Adapter. Perhaps the
>  linuxkernel has a bug?
> 
>  ProblemType: Bug
>  DistroRelease: Ubuntu 17.10
>  Package: xorg 1:7.7+19ubuntu3
>  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
>  Uname: Linux 4.13.0-16-generic x86_64
>  ApportVersion: 2.20.7-0ubuntu3
>  Architecture: amd64
>  CompositorRunning: None
>  CurrentDesktop: KDE
>  Date: Tue Oct 17 19:08:32 2017
>  DistUpgraded: Fresh install
>  DistroCodename: artful
>  DistroVariant: kubuntu
>  DkmsStatus:
>   bbswitch, 0.8, 4.13.0-12-generic, x86_64: installed
>   bbswitch, 0.8, 4.13.0-16-generic, x86_64: installed
>   nvidia-384, 384.90, 4.13.0-12-generic, x86_64: installed
>   nvidia-384, 384.90, 4.13.0-16-generic, x86_64: installed
>  ExtraDebuggingInterest: No
>  GraphicsCard:
>   Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA 
> controller])
> Subsystem: Acer Incorporated [ALI] HD Graphics 5500 [1025:0962]
>  InstallationDate: Installed on 2017-10-07 (10 days ago)
>  InstallationMedia: Kubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170926)
>  MachineType: Acer Aspire VN7-571G
>  ProcEnviron:
>   LANGUAGE=de
>   PATH=(custom, no user)
>   XDG_RUNTIME_DIR=
>   LANG=de_DE.UTF-8
>   SHELL=/bin/bash
>  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic.efi.signed 
> root=UUID=d5a4b134-b39a-4764-99bd-208c9e504fa8 ro quiet splash vt.handoff=7
>  SourcePackage: xorg
>  Symptom: display
>  UpgradeStatus: No upgrade log present (probably fresh install)
>  dmi.bios.date: 01/08/2015
>  dmi.bios.vendor: Insyde Corp.
>  dmi.bios.version: V1.14
>  dmi.board.asset.tag: No Asset Tag
>  dmi.board.name: Aspire VN7-571G
>  dmi.board.vendor: Acer
>  dmi.board.version: V1.14
>  dmi.chassis.asset.tag: No Asset Tag
>  dmi.chassis.type: 10
>  dmi.chassis.vendor: Acer
>  dmi.chassis.version: V1.14
>  dmi.modalias: 
> dmi:bvnInsydeCorp.:bvrV1.14:bd01/08/2015:svnAcer:pnAspireVN7-571G:pvrV1.14:rvnAcer:rnAspireVN7-571G:rvrV1.14:cvnAcer:ct10:cvrV1.14:
>  dmi.product.family: Broadwell System
>  dmi.product.name: Aspire VN7-571G
>  dmi.product.version: V1.14
>  dmi.sys.vendor: Acer
>  version.compiz: compiz N/A
>  version.libdrm2: libdrm2 2.4.83-1
>  version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.2-0ubuntu1
>  version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.2-0ubuntu1
>  version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
>  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
>  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
>  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
> 2:2.99.917+git20170309-0ubuntu1
>  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
> 
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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Menachem Shapiro]

I just updated to Lubuntu 17.10 and experienced this issue. I have a
Qualcomm Atheros QCA9377 card, and kernel version 4.13.0-16-generic had
this same issue. I reverted back to 4.10.0-38-generic and the problem
went away.

I'm waiting for the next kernel release to see if that solves the
problem.

See also this thread: https://askubuntu.com/questions/965856/kworker-
blocked-for-more-than-120-seconds-ubuntu-17-10/967440

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  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Viraniac]

Its been more than two weeks now. Could you please confirm when the next
kernel will be available?

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Slava]

The same problem on Lenovo ideapad 110.

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[mas samarin]

I have same issue,

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[gernophil]

Any news when the fixed kernel release will be released?

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Jan Kaláb]

Installing kernel from http://kernel.ubuntu.com/~kernel-
ppa/mainline/v4.13.10/ fixed the issue for me.

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Påvel Nicklasson]

I can confirm the bug on a Lenovo laptop. It may be the Qualcomm Atheros 
wireless card that is the culprit. I have a Qualcomm Atheros QCA9377 card. 
I can also confirm that the newest kernel from the Ubuntu Mainline ppa 
(http://kernel.ubuntu.com/~kernel-ppa/mainline/), 4.13.10, seems to solve the 
issue. The computer shuts down as expected. I have no problem with suspend 
closing the lid.

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Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Dimitrios Matanis]

I just installed an newer ubuntu mainline kernel (4.13.9) and the issue
is fixed as described by Kai-Heng Feng.

The new problem with that now is that closing the laptop lid doesn't do
anything, even though I have set the AC and battery action to 'suspend'
in dconf-editor.

I do hope that this is just the dev kernel causing this, which I do not
intend to keep once the upstream kernel update gets released.

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https://bugs.launchpad.net/bugs/1724317

Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Dimitrios Matanis]

Thank you for your swift response. That's good to hear it's not so far
away.

In the meantime does anyone know any workaround for restarting/shutting
down a stuck system? I don't feel really comfortable holding down the
power button every time and unfortunately I have to use ubuntu every day
at work.

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https://bugs.launchpad.net/bugs/1724317

Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Kai-Heng Feng]

Should be less than two weeks.

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Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Dimitrios Matanis]

This also affects me. I can't shutdown my laptop unless I hold down the
power button. Happens every time.

Kai-Heng Feng you mention that this will be fixed in the next kernel
release. Any idea roughly when that would be?

I tried booting with 4.10 kernel but that didn't seem to work very well
on other areas.

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Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Kai-Heng Feng]

It should be fixed with next Artful kernel release.

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https://bugs.launchpad.net/bugs/1724317

Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Brian Murray]

** No longer affects: ubuntu

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Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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[Bug 1724317] Re: Shutdown hangs / no standby - possible Wifi-bug in the kernel

[Jan Iversen]

Possible affects linux-image-4.13.0-16-generic

** Package changed: xorg (Ubuntu) => ubuntu

** Also affects: linux (Ubuntu)
   Importance: Undecided
   Status: New

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Title:
  Shutdown hangs / no standby - possible Wifi-bug in the kernel

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