Modprobe causes kernel NULL pointer crash desktop install

Bug #1077519 reported by Jonathan Lynch
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ubiquity (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

While installing 32-bit 12.10 Quantal Quetzal on my Asus M2N-e from DVD, the GUI disappears and the error shows:

[ 1000.576189] BUG: unable to handle kernel NULL pointer dereference at 0000004c
...
[ 1000.576734] Process modprobe (pid: 17582, ti=c6b08000 task=f213bf70 task,ti=c6b08000)
...
[ 1000.576860] Call Trace:
[ 1000.576877] [<c1037af8>] ? default_spin_lock_flags+0x8/0x10
[ 1000.576898] [<c15c924d>] ? _raw_spin_lock_irqsave+0x2d/0x40
[ 1000.576916] [<c105f5e2>] destroy_workqueue+0x12/0x130
[ 1000.576969] [<cf90811a4>] ieee80211_unregister_hw+0xd4/0x119 [mac80211]
[ 1000.576994] [<fa161dd8>] b43legacy_remove+0x88/0xa0 [b43legacy]

(The full error is in the attached photo.)

If I wait a bit and hit ctl+alt+F7 I can get back to the GUI, and the status is still "Loading module 'usb-storage' for 'USB storage'..., and in the little window below it says:

Nov 10 22:59:41 ubuntu ubiquity: /bin/check-missing-firmware: 259: /bin/check-missing-firmware: mountmedia: not found
Nov 10 22:59:41 ubuntu ubiquity: /bin/check-missing-firmware: 267: /bin/check-missing-firmware: mountmedia: not found
Nov 10 22:59:41 ubuntu kernel: [ 1000.576189] BUG: unable to handle kernel NULL pointer dereference at 0000004c
(the above dump follows)
Nov 10 23:23:29 ubuntu kernel: [ 925.215855] ---[ end trace 1cadb8b154af9f2e ]---
Nov 10 23:23:29 ubuntu ubiquity: Killed
Nov 10 23:23:29 ubuntu acpid: client 2965[0:0] has disconnected
Nov 10 23:23:29 ubuntu acpid: client connected from 2965[0:0]
Nov 10 23:23:29 ubuntu acpid: 1 client rule loaded

And then it just sits there...

Revision history for this message
Jonathan Lynch (jimethn) wrote :
description: updated
description: updated
Revision history for this message
Jonathan Lynch (jimethn) wrote :
Revision history for this message
Simon Quigley (tsimonq2) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. If you test it and it is still an issue, kindly upload the updated logs by running only once:
apport-collect 1077519

and any other logs that are relevant for this particular issue.

Changed in ubiquity (Ubuntu):
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]

Changed in ubiquity (Ubuntu):
status: Incomplete → Expired
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.