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[halfbeing <1462740@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Since upgrading to 15.04 a couple of weeks ago I have been finding that
sometimes my wifi completely stops working. Restarting network manager
doesn't help, nor does removing and reinserting the wireless driver. I
can get network access through an ethernet cable.

Another, possibly related problem I have been experiencing since
upgrading to 15.04 is that sometimes wpa_supplicant starts hogging CPU,
up to 100% on one core. When I kill it, the replacement instance of
wpa_supplicant continues to hog the CPU. I am not sure whether this is
caused by the same fault that is causing my wifi to fail. As I send this
error report, my machine is in such a crippled state with no wifi and
wpa_supplicant slowing everything to a crawl. I noticed that
wpa_supplicant was misbehaving only after I had tried removing and
reinserting the wifi driver, so I don't know whether the wifi failure
problem caused wpa_supplicant to go bananas, or whether it was the fact
that I had messed about with the driver.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: wpasupplicant 2.1-0ubuntu7.1
ProcVersionSignature: Ubuntu 3.19.0-18.18-lowlatency 3.19.6
Uname: Linux 3.19.0-18-lowlatency x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Jun  7 15:01:56 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-03-06 (93 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
SourcePackage: wpa
UpgradeStatus: Upgraded to vivid on 2015-05-29 (8 days ago)

** Affects: wpa (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug vivid

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https://bugs.launchpad.net/bugs/1462740

Title:
  Wifi intermittently stops working since 15.04 upgrade

Status in wpa package in Ubuntu:
  New

Bug description:
  Since upgrading to 15.04 a couple of weeks ago I have been finding
  that sometimes my wifi completely stops working. Restarting network
  manager doesn't help, nor does removing and reinserting the wireless
  driver. I can get network access through an ethernet cable.

  Another, possibly related problem I have been experiencing since
  upgrading to 15.04 is that sometimes wpa_supplicant starts hogging
  CPU, up to 100% on one core. When I kill it, the replacement instance
  of wpa_supplicant continues to hog the CPU. I am not sure whether this
  is caused by the same fault that is causing my wifi to fail. As I send
  this error report, my machine is in such a crippled state with no wifi
  and wpa_supplicant slowing everything to a crawl. I noticed that
  wpa_supplicant was misbehaving only after I had tried removing and
  reinserting the wifi driver, so I don't know whether the wifi failure
  problem caused wpa_supplicant to go bananas, or whether it was the
  fact that I had messed about with the driver.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: wpasupplicant 2.1-0ubuntu7.1
  ProcVersionSignature: Ubuntu 3.19.0-18.18-lowlatency 3.19.6
  Uname: Linux 3.19.0-18-lowlatency x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sun Jun  7 15:01:56 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-03-06 (93 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: wpa
  UpgradeStatus: Upgraded to vivid on 2015-05-29 (8 days ago)

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