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[Bug 1296504] [NEW] iwl3945 wireless connection becomes unreliable


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Dell XPS m1330 with Intel Wireless ABG

uname -a: Linux ethan-XPS-M1330 3.2.0-60-lowlatency-pae #62-Ubuntu SMP
PREEMPT Tue Feb 25 00:32:18 UTC 2014 i686 i686 i386 GNU/Linux

what I expect:  wireless connectivity to be reliable and consistent
what happens instead:  wireless connection cuts out, recovers, re-establishes connection.  sometimes (rare) requires disabling / re-enabling via hardware or software switch.   sometimes (more rare) hardware fails completely until reboot (removing and re-inserting module fails -- hardware disappears to the system until reboot).  This problem will occur without a suspend / resume cycle.

This problem appeared recently, within the last month or two months of
kernel updates.  I think the next step in debugging would be to test
reliability against previous kernel versions.

some relevant dmesg:  
keyboard: can't emulate rawmode for keycode 240
iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xffffffff, s/b 0xf802020
iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
iwl3945 0000:0c:00.0: MAC is in deep sleep!.  CSR_GP_CNTRL = 0xFFFFFFFF

iwl3945 0000:0c:00.0: bad EEPROM signature,EEPROM_GP=0x00000007
iwl3945 0000:0c:00.0: EEPROM not found, EEPROM_GP=0xffffffff
iwl3945 0000:0c:00.0: Unable to init EEPROM
iwl3945 0000:0c:00.0: PCI INT A disabled
iwl3945: probe of 0000:0c:00.0 failed with error -2

0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-60-lowlatency-pae 3.2.0-60.62
ProcVersionSignature: Ubuntu 3.2.0-60.62-lowlatency-pae 3.2.55
Uname: Linux 3.2.0-60-lowlatency-pae i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Sun Mar 23 20:09:07 2014
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MarkForUpload: True
SourcePackage: linux-lowlatency
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux (Ubuntu)
     Importance: Low
         Status: Incomplete

** Tags: apport-bug i386 precise running-unity
iwl3945 wireless connection becomes unreliable
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