Public bug reported:

I started a new EC2 instance of Ubuntu 11.10 Oneiric using ami-a7f539ce
in us-east-1.

About two days later, it became non-responsive

I found the attached kernel stack trace in /var/log/syslog

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-12-virtual 3.0.0-12.20
ProcVersionSignature: Ubuntu 3.0.0-12.20-virtual 3.0.4
Uname: Linux 3.0.0-12-virtual i686
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116,  1 2011-10-31 16:16 seq
 crw-rw---- 1 root audio 116, 33 2011-10-31 16:16 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 1.23-0ubuntu3
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory
CurrentDmesg: [   21.269721] ip_tables: (C) 2000-2006 Netfilter Core Team
Date: Mon Oct 31 16:43:14 2011
Ec2AMI: ami-a7f539ce
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: us-east-1d
Ec2InstanceType: c1.medium
Ec2Kernel: aki-805ea7e9
Ec2Ramdisk: unavailable
Lspci:
 
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize 
libusb: -99
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: apport-bug ec2-images i386 oneiric

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https://bugs.launchpad.net/bugs/884320

Title:
  EC2 oneiric "BUG: unable to handle kernel paging request at f57ba9a1"

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