On Fri, Mar 07, 2014 at 06:37:50AM -0000, Martin Pitt wrote:
> Indeed the "[ ] Enable network" menu entry isn't rfkill, sorry. That's
> "[ ] Enable wireless network". I think "Enable network" just pokes
> org.freedesktop.NetworkManager.Enable(False/True), which tells NM to
> shut down/restart all interfaces. Aside from this manual operation the
> main automatic thing to indirectly call this that I know of is logind:
> it sends a PrepareForSleep(True) signal right before suspend, and a
> PrepareForSleep(False) signal after resuming; NM listens to that signal
> and then does the equivalent of Enable(False/True), to restart the
> network after resuming.

> Now, suspend certainly wasn't involved here either, but during your
> upgrade systemd-services/libpam-systemd were upgraded as well. Their
> maint scripts don't do anything to manually restart them, but perhaps
> logind wasn't running before the upgrade and starting it had such a
> funky effect? Do you have any /var/crash/* which could be related?

$ ls /var/crash/*login*
ls: cannot access /var/crash/*login*: No such file or directory
$

But perhaps it's worth mentioning that, although this didn't happen during a
suspend/resume, the problem has repeated for me since this upgrade when I
*did* suspend/resume (without rebooting since the upgrade).  Maybe due to a
different cause, maybe not.

I also see the following in dmesg coinciding with the upgrade, which is
probably of interest:

Mar  5 12:38:09 virgil kernel: [650446.233498] rfkill: input handler disabled
Mar  5 12:38:09 virgil kernel: [650446.473658] wlan2: deauthenticating from 
00:26:b8:ee:3c:38 by local choice (reason=3)

That's precisely the time that the systemd packages were being configured
(udev, libsystemd-daemon0, systemd-shim, systemd-services).  All other
packages of interest were configured at irrelevant moments (either later, or
too much earlier to be related).

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https://bugs.launchpad.net/bugs/1288411

Title:
  udev restart on upgrade broke my wireless state

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