Comment 0 for bug 453579

There are worrying reports of filesystem corruption on ext4 in karmic. Scott says:

12:36 < Keybuk> this whole ext4 thing is worrying me
12:36 < Keybuk> I just downloaded an iso image, md5sum didn't match
12:36 < Keybuk> downloaded it into an ext3 partition, matched just fine
12:59 < Keybuk> and I know mvo has seen bugs with corrupted .debs in /var/cache/apt/archives
12:59 < Keybuk> which seems to imply its any file large enough to use lots of extents

I'm opening this bug report so that this bug gets tracked & triaged for karmic. If we're unable to isolate the issue, we should consider rolling back to ext3 as the default filesystem in the installer.

ProblemType: Bug
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: vorlon 3350 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 17'
   Mixer name : 'Analog Devices AD1981'
   Components : 'HDA:11d41981,17aa2025,00100200'
   Controls : 20
   Simple ctrls : 11
Date: Fri Oct 16 16:01:26 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=f108133c-6b9d-4d28-9058-0b3a0c5549b4
MachineType: LENOVO 6371CTO
Package: linux-image-2.6.31-14-generic 2.6.31-14.46
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=/dev/mapper/hostname-root ro
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-13.44-generic
RelatedPackageVersions: linux-firmware 1.22
SourcePackage: linux
Uname: Linux 2.6.31-13-generic x86_64
WpaSupplicantLog:

dmi.bios.date: 12/27/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 7IET23WW (1.04 )
dmi.board.name: 6371CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7IET23WW(1.04):bd12/27/2006:svnLENOVO:pn6371CTO:pvrThinkPadT60:rvnLENOVO:rn6371CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 6371CTO
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO