Thor H. Johansen, The issue you are reporting is an upstream one. Could
you please report this problem following the instructions verbatim at
https://wiki.ubuntu.com/Bugs/Upstream/kernel to the appropriate mailing
list (TO Larry Finger, and wlanfae CC linux-wireless)?
Please provide a direct URL to your post to the mailing list when it
becomes available so that it may be tracked.
Thank you for your help.
** Changed in: linux (Ubuntu)
Importance: Medium => High
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
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https://bugs.launchpad.net/bugs/1618267
Title:
RTL8821AE abruptly halts all network traffic
Status in linux package in Ubuntu:
Triaged
Bug description:
Computer: Lenovo IdeaPad 110
WiFi AP: Linksys E2500 v1.0 with firmware v2.0.00
After a few minutes of mixed Internet use, the WiFi hangs and the
interface ceases to pass traffic:
64 bytes from 8.8.8.8: icmp_seq=281 ttl=55 time=12.8 ms
64 bytes from 8.8.8.8: icmp_seq=282 ttl=55 time=12.5 ms
64 bytes from 8.8.8.8: icmp_seq=283 ttl=55 time=58.4 ms
64 bytes from 8.8.8.8: icmp_seq=284 ttl=55 time=68.0 ms
64 bytes from 8.8.8.8: icmp_seq=285 ttl=55 time=65.6 ms
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
^C
--- 8.8.8.8 ping statistics ---
314 packets transmitted, 283 received, 9% packet loss, time 366615ms
rtt min/avg/max/mdev = 11.423/177.382/7227.733/806.648 ms, pipe 8
Before the driver hangs, speeds are 30/5 Mbps despite a 75 Mbps WiFi
transmit rate and a 70/70 Mbps symmetrical fiber connection in the
house. The connection and the router are known to perform better than
this with other equipment.
Forcing the router into 802.11g mode does, at least at a cursory
glance, seem to mitigate the halting problem, but speeds remain
abysmal.
If there is any kind of technically involved tests I can do to speed
up the debugging of this problem, let me know. I have some experience
with embedded development in C.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-34-generic 4.4.0-34.53
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: thor 3179 F.... pulseaudio
/dev/snd/controlC0: thor 3179 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Aug 30 01:36:22 2016
HibernationDevice: RESUME=UUID=a482ae0a-dd87-41de-be2c-50541edcfa53
InstallationDate: Installed on 2016-08-29 (0 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
MachineType: LENOVO 80TJ
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-34-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-34-generic N/A
linux-backports-modules-4.4.0-34-generic N/A
linux-firmware 1.157.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/24/2016
dmi.bios.vendor: Lenovo
dmi.bios.version: 1QCN16WW
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Nano 5A8
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 110-15ACL
dmi.modalias:
dmi:bvnLenovo:bvr1QCN16WW:bd03/24/2016:svnLENOVO:pn80TJ:pvrLenovoideapad110-15ACL:rvnLENOVO:rnNano5A8:rvrSDK0J40700WIN:cvnLENOVO:ct10:cvrLenovoideapad110-15ACL:
dmi.product.name: 80TJ
dmi.product.version: Lenovo ideapad 110-15ACL
dmi.sys.vendor: LENOVO
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