Bug 1269335 - Enabling realtek RTL8821AE wireless with kernel >= 4.1.4-100.fc21.x86 hangs laptop
Summary: Enabling realtek RTL8821AE wireless with kernel >= 4.1.4-100.fc21.x86 hangs l...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: linux-firmware
Version: 23
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: David Woodhouse
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
: 1274305 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-10-07 04:02 UTC by Michael Bromley
Modified: 2016-11-28 14:05 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-11-28 14:05:26 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)

Description Michael Bromley 2015-10-07 04:02:19 UTC
Description of problem:
Update FC21 kernel from 4.1.3-100.fc21.x86_64 to any of the following updates 
resulted upon bootup in a complete laptop freeze at the 'f' fedora logo and doesn't get to the gnome login screen.

Version-Release number of selected component (if applicable):
Fails using kernel 4.1.4-100.fc21.x86, 4.1.5-100.fc21.x86, 4.1.6-100.fc21.x86_64, 4.1.7-100.fc21.x86_64 and 4.1.8-100.fc21.x86_64.
Using linux-firmware-20150521-48.git3161bfa4.fc21.noarch

How reproducible:
Always.

Steps to Reproduce:
1. Turn on wireless in 4.1.3-100.fc21.x86_64, works aok.
2. Reboot computer and load a newer kernel
3. System freezes at bootup at 'f' screen before login screen.

Alternatively:
1. Turn off wireless in 4.1.3-100.fc21.x86_64.
2. Reboot computer and load a newer kernel, boots up aok.
3. Log into gnome, everything eg. ethernet etc works aok.
4. turn on wireless, system seems to briefly stutter then hangs.

Actual results:
Complete system freeze.  Requires reboot.

Expected results:
Wireless turns on etc etc.

Additional info:
I have a Asus TX201LA laptop, dual boot FC21 / Windows 8 + android tablet (Windows wireless works fine.)

Additional similar FC21 experience from user with vivopc VM42:
http://forums.fedoraforum.org/showthread.php?t=306441

Comment 1 Josh Boyer 2015-10-08 13:57:38 UTC
Is there a reason you believe this is firmware related?

Comment 2 Michael Bromley 2015-10-08 19:42:01 UTC
not at all.  I don't know how to triage the problem further to identify whether it's the kernel (which changed) or the firmware (which hasn't)

Comment 3 Michael Bromley 2015-10-26 23:49:59 UTC
Live install of FC22 (as released, ie. 4.0.4-301.fc22.x86_64) has wireless that starts by default and works ok out of the box.  I haven't run the upgrades to see if the >4.1.3 kernels fail.

Comment 4 Michael Bromley 2015-10-26 23:51:41 UTC
Installation of FC23 (beta) is unable to install on this machine. During the installation CD startup, it freezes at the 'f' logo.  ie. looks like the same problemo.

Comment 5 Michael Bromley 2015-10-27 00:22:22 UTC
Possible duplicate
https://bugzilla.redhat.com/show_bug.cgi?id=1274305

Comment 6 Michael Bromley 2015-10-27 02:22:02 UTC
doing alt-d during FC21 bootup of 4.1.8-100.fc21.x86_64 with network previously enabled in 4.1.3-100.fc21.x86_64

gives all [OK]'s eg.

Starting Network Manager...
[OK] Started Network Manager.

Starting Wait for Plymouth Boot Screen to Quit
[OK] Started GNOME Display Manager.
[OK] Started Virtualization daemon.

where it seems to freeze with no error messages....

------------------------------------

doing alt-d during bootup of FC23 beta installation disk reveals

[OK] Started Network Manager
....
[OK] Started GNOME Display Manager

then it starts producing errors eg:

[166.X] xhci_hcd 0000:00:14.0: Command completion event does not match command
[167.X] usb 2-1.4: device not accepting address 6, error -62
[171.X] xhci_hcd 0000:00:14.0: HC died: cleaning up
[171.X] usb 1-1.2.4: device descriptor read/all, error -110
[171.X] usb 1-1.2-port4: cannot disable (err = -22)
[171.X] usb 1-1.2-port4: cannot reset (err = -22)
....
[171.X] usb 1-1.2-port4: cannot reset (err = -22)
[171.X] usb 1-1.2-port4: Cannot enable. Maybe the USB cable is bad?

which repeats a few times and then the following starts repeating couple of minutes:  

[181.X] INFO rcu_sched detected stalls on CPUs/tasks { 0} (detected by 3, t=60003 jiffies, g=2719, c=2718, q=0)
[187.X] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 29s! [NetworkManager:1261]

Comment 7 Vedran Miletić 2015-10-27 14:49:02 UTC
*** Bug 1274305 has been marked as a duplicate of this bug. ***

Comment 8 Vedran Miletić 2015-10-27 14:51:47 UTC
Happens on ASUS X551MA on F22 and F23 as well. Kernel 4.0 works fine. All kernels 4.1, 4.2, (and also 4.3 from fc24 up to git7) have problems.

Comment 9 Fedora End Of Life 2015-11-04 10:01:49 UTC
This message is a reminder that Fedora 21 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 21. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '21'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 21 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 10 Michael Bromley 2015-11-29 23:59:47 UTC
There is an independent report on the same hardware model as me: using Fedora 22 4.1.3 works but not the updates.   Fedora 23 live doesn't work.
( http://forums.fedoraforum.org/showthread.php?p=1748806#post1748806 )

Should I be changing the component from linux-firmware to something else?

We are approaching EOL on my (working, current) Fedora 21 install...

Comment 11 Michael Bromley 2015-12-08 09:38:40 UTC
There is a workaround...

Can confirm that adding pci=nomsi on grub command line works for me (and others) with 4.1.13-100.fc21.x86_84 as suggested over at
https://github.com/lwfinger/rtlwifi_new/issues/64
http://forums.fedoraforum.org/showthread.php?t=306441

will test this modification enables FC23 install

Comment 12 Bugzy 2016-02-03 00:19:03 UTC
Hi Michael and David,
It looks like this is the same problem as in #1297554 [1] and #1154286 [2. The first link contains a fedora 23 kernel with a back ported patch from Kernel 4.4 that resolves the issue. I am wondering if someone can merge all three bug reports.

[1]https://bugzilla.redhat.com/show_bug.cgi?id=1297554
[2]https://bugzilla.redhat.com/show_bug.cgi?id=1154286

Comment 13 Vedran Miletić 2016-03-31 23:42:29 UTC
Should this be fixed in 4.4.6 in updates?

Comment 14 Bugzy 2016-03-31 23:48:34 UTC
yes. It has been fixed since fedora kernel 4.2.6 and up

Comment 15 Fedora End Of Life 2016-11-24 12:43:06 UTC
This message is a reminder that Fedora 23 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 23. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as EOL if it remains open with a Fedora  'version'
of '23'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 23 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 16 Vedran Miletić 2016-11-25 00:31:48 UTC
This was fixed in F23 updates. Please mark it as such.


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