*** This bug is a duplicate of bug 78255 ***
** This bug has been marked a duplicate of bug 78255
[feisty] rtl8180 oops
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(Feisty) NetworkManager makes system unusable, seems to have problem with dbus
https://launchpad.net/bugs/83013
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ubuntu-bugs mailing list
It looks more like a crash of the kernel driver for your wifi card...
I have just experienced a similar problem, I will test tomorow if removing
network-manager solves it.
Uneducated guess: if it is just a driver problem, blacklisting r8187 should
also solve the problem (I planned to do it but
I upgraded my laptop (Toshiba M200, with integrated wifi-card) to Feisty
too, and this works without problems.
So big change that this error is due to the driver,
should I try to add rtl8187 (or r8187) to /etc/modprobe.d/blacklist on my
Desktop-computer to see if this solves the error?
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Indeed, the log you posted looks like a driver problem:
Jan 31 13:39:05 leon-desktop kernel: [ 46.901348] rtl8187: Card successfully
reset
Jan 31 13:39:10 leon-desktop kernel: [ 51.597988] BUG: unable to handle kernel
NULL pointer dereference at virtual address
If blacklisting it
unloading the module
$ sudo modprobe -r r8187
Segmentation fault
already gives a segfault,
I have now blacklisted the module as well, but still have to reboot...
Let you know if I can install network-manager after that.
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(Feisty) NetworkManager makes system unusable, seems to have problem
I can confirm that blacklisting module r8187 fixes the error of the
NetworkManager.
I rebooted, after adding r8187 to the blacklist, and installed network-
manager(-gnome) and now I don't see any error and my system stays up as
normal.
Of course I haven't got wireless now, but I didn't use if
