[pkg-wpa-devel] Bug#428785: Bug#428785: wpasupplicant: losing WiFi connectivity "Connection to wpa_supplicant lost - trying to reconnect"

[Sebastian Niehaus]

Reinhard Tartler <siretart at tauware.de> writes:

> Sebastian Niehaus <killedbythoughts at mindcrime.net> writes:
>
>>
>> For some reason, wpa_supplicant sometimes loses the connection to wpa_cli
>> and wpa_supplicant seems to crash.
>
> It's rather the other way round: wpa_supplicant seems to crash for you,
> and wpa_cli looses therefore the connection.
>
> Please try to find out why it crashes for you. Please try to retrieve a
> coredump and backtrace. 

Tried to get e backtrace after recompile but I did not succeed,
whatever I tried. 

Then I hypothesized wpa_supplicant could be stopped by some different
process. I started fiddeling with whereami and ifplugd.


Deinstalling whereami did not solve my problem so I modified the
configuration of ifplugd which was


,----[ /etc/default/ifplugd ]--
| INTERFACES="all"
| HOTPLUG_INTERFACES="all"
| 
| ARGS="-q -f -u0 -d10 -w -I"
| SUSPEND_ACTION="stop"
`----

Now it is 


,----[ /etc/default/ifplugd ]--
| INTERFACES="eth0 eth1"
| HOTPLUG_INTERFACES="eth0"
| 
| ARGS="-q -f -u0 -d10 -w -I"
| SUSPEND_ACTION="stop"
`----

where eth0 is my (wired) ethernet and eth1 the Intel Wireless LAN
Adapter.

I did not test the ethernet but WLAN runs fine for nearly 24 hours
without wpa_supplicant disappearing somehow. I will test this setting
longer ...

Actually, I believe, the problem I reported is not a bug of
wpa_supplicant, but a bad interaction of wpa_supplicant and ifplugd
causing wpa_supplicant to be killed during bad WLAN connecticity.

If others can reproduce this behaviour it may be useful to add this to
the package's documentation.


So long & thanks a *lot*


Sebastian