Public bug reported:
During the weekend I used a USB 3G modem with pppd directly (better
debug output than network-manager), so I right-clicked on network
manager's icon and disabled wireless. Today I suspended the laptop, and
when I resumed and re-enabled network-manager's wifi support, it failed
to see the office network.
I then saw errors about iwl3945 in dmesg. The interesting bits appear
to be
[167566.978780] NetworkManager: page allocation failure. order:5, mode:0x8020
[167566.978785] Pid: 3748, comm: NetworkManager Not tainted 2.6.28-11-generic
#42-Ubuntu
[167566.978787] Call Trace:
[167566.978796] [<c0500ac6>] ? printk+0x18/0x1a
[167566.978802] [<c0194267>] __alloc_pages_internal+0x387/0x490
[167566.978807] [<c01087d3>] dma_generic_alloc_coherent+0x73/0xe0
[167566.978811] [<c0108760>] ? dma_generic_alloc_coherent+0x0/0xe0
[167566.978828] [<f878ceb3>] iwl3945_tx_queue_init+0x1d3/0x2b0 [iwl3945]
[167566.978837] [<f87975c8>] iwl3945_hw_nic_init+0x3e8/0x470 [iwl3945]
[167566.978845] [<f8790032>] __iwl3945_up+0x92/0x270 [iwl3945]
[167566.978848] [<c0102ab7>] ? __switch_to+0xb7/0x1a0
[167566.978856] [<f87931e0>] iwl3945_mac_start+0x50/0x1c0 [iwl3945]
[167566.978872] [<f86520fa>] ieee80211_open+0x32a/0x830 [mac80211]
ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
HibernationDevice: RESUME=UUID=9f432fcd-a5d0-44c3-8441-9022204fac81
MachineType: LENOVO 646655G
Package: linux-image-2.6.28-11-generic 2.6.28-11.42
ProcCmdLine: root=UUID=34a7bfc5-59dc-4d74-a131-45b6ae4663b1 ro quiet splash
vga=872
ProcEnviron:
LC_CTYPE=lt_LT.UTF-8
PATH=(custom, user)
LANG=lt_LT.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-11.42-generic
SourcePackage: linux
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
iwl3945: wireless stopped working after resume [jaunty]
https://bugs.launchpad.net/bugs/364006
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