This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1380276
Title:
WiFi disconnects and unable to discover network until reboot after
upgrading to linux 3.13.0.37
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Yesterday (11 Oct, 2014 9:36 AM IST) my kubuntu was upgraded using muon
package manager with following list of packages
Start-Date: 2014-10-11 09:36:29
Install: linux-image-extra-3.13.0-37-generic:i386 (3.13.0-37.64, automatic),
linux-headers-3.13.0-37:i386 (3.13.0-37.64, automatic),
linux-headers-3.13.0-37-generic:i386 (3.13.0-37.64, automatic),
linux-image-3.13.0-37-generic:i386 (3.13.0-37.64, automatic)
Upgrade: apt:i386 (1.0.1ubuntu2.4.1, 1.0.1ubuntu2.5),
linux-headers-generic-pae:i386 (3.13.0.36.43, 3.13.0.37.44), rsyslog:i386
(7.4.4-1ubuntu2.1, 7.4.4-1ubuntu2.3), libapt-pkg4.12:i386 (1.0.1ubuntu2.4.1,
1.0.1ubuntu2.5), bash:i386 (4.3-7ubuntu1.4, 4.3-7ubuntu1.5),
linux-generic-pae:i386 (3.13.0.36.43, 3.13.0.37.44), linux-generic:i386
(3.13.0.36.43, 3.13.0.37.44), apt-utils:i386 (1.0.1ubuntu2.4.1,
1.0.1ubuntu2.5), libapt-inst1.5:i386 (1.0.1ubuntu2.4.1, 1.0.1ubuntu2.5),
linux-libc-dev:i386 (3.13.0-36.63, 3.13.0-37.64), linux-image-generic:i386
(3.13.0.36.43, 3.13.0.37.44), linux-headers-generic:i386 (3.13.0.36.43,
3.13.0.37.44), google-chrome-stable:i386 (37.0.2062.120-1, 38.0.2125.101-1),
apt-transport-https:i386 (1.0.1ubuntu2.4.1, 1.0.1ubuntu2.5)
End-Date: 2014-10-11 09:41:14
After that on reboot, my WiFi starts - works for 10-15 minutes and then the
computer hangs for a few sec and then WiFi module stops blinking and cannot
detect my network at all. Restarting Wifi hardware switch doesn't help either.
I have to reboot the system and the problem repeats.
My system has been working smoothly for many months so far.
I looked at syslog and found following
Oct 12 16:29:34 milkyWay kernel: [ 579.964628] wlan0: HW problem - can not
stop rx aggregation for 08:86:3b:b5:8a:a8 tid 0
Oct 12 16:29:34 milkyWay kernel: [ 579.964659] iwlwifi 0000:03:00.0: Command
REPLY_ADD_STA failed: FW Error
Oct 12 16:29:34 milkyWay kernel: [ 579.964664] wlan0: HW problem - can not
stop rx aggregation for 08:86:3b:b5:8a:a8 tid 2
Oct 12 16:29:34 milkyWay kernel: [ 579.964670] iwlwifi 0000:03:00.0: Command
REPLY_ADD_STA failed: FW Error
Oct 12 16:29:34 milkyWay kernel: [ 579.964674] wlan0: HW problem - can not
stop rx aggregation for 08:86:3b:b5:8a:a8 tid 6
Oct 12 16:29:41 milkyWay kernel: [ 579.972024] iwlwifi 0000:03:00.0: Failing
on timeout while stopping DMA channel 0 [0x5a5a5a5a]
Oct 12 16:29:41 milkyWay kernel: [ 579.972024] iwlwifi 0000:03:00.0: Failing
on timeout while stopping DMA channel 2 [0x5a5a5a5a]
Oct 12 16:29:41 milkyWay kernel: [ 579.972024] iwlwifi 0000:03:00.0: Failing
on timeout while stopping DMA channel 5 [0x5a5a5a5a]
Oct 12 16:29:41 milkyWay kernel: [ 579.972024] iwlwifi 0000:03:00.0: Failing
on timeout while stopping DMA channel 7 [0x5a5a5a5a]
Oct 12 16:29:41 milkyWay kernel: [ 587.149295] psmouse serio2: GlidePoint at
isa0060/serio2/input0 lost synchronization, throwing 2 bytes away.
Oct 12 16:29:42 milkyWay kernel: [ 588.020526] psmouse serio2: resync
failed, issuing reconnect request
Oct 12 16:29:43 milkyWay wpa_supplicant[1627]: wlan0: CTRL-EVENT-DISCONNECTED
bssid=08:86:3b:b5:8a:a8 reason=4 locally_generated=1
Oct 12 16:29:43 milkyWay kernel: [ 588.901774] ieee80211 phy0: Hardware
restart was requested
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-37-generic 3.13.0-37.64
ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
Uname: Linux 3.13.0-37-generic i686
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: anshul 2076 F.... pulseaudio
anshul 2292 F.... pulseaudio
/dev/snd/pcmC0D0p: anshul 2076 F...m pulseaudio
CurrentDesktop: KDE
Date: Sun Oct 12 17:01:32 2014
HibernationDevice: RESUME=UUID=47f52567-52eb-457c-9601-84416c96c874
InstallationDate: Installed on 2014-02-07 (247 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release i386
(20131016.1)
MachineType: Acer Aspire 5738
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic
root=UUID=ada07864-0e5b-41b3-aa5c-53ee70e42347 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-37-generic N/A
linux-backports-modules-3.13.0-37-generic N/A
linux-firmware 1.127.7
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-04-19 (176 days ago)
dmi.bios.date: 10/23/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.21
dmi.board.name: JV50
dmi.board.vendor: Acer
dmi.board.version: Rev
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLTD:bvrV1.21:bd10/23/2009:svnAcer:pnAspire5738:pvr0100:rvnAcer:rnJV50:rvrRev:cvnAcer:ct10:cvrN/A:
dmi.product.name: Aspire 5738
dmi.product.version: 0100
dmi.sys.vendor: Acer
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