[Bug 607006] [NEW] 10.04 LiveCD (USB-ified with usb-creator) decided to use an existing HDD partition for swap.

[Dan Shoutis]

Public bug reported:


I'm not entirely sure where the culprit is... but the behaviour is entirely unacceptable.

Background: Fixing a RAID5 system that has had a disk go bad/out of
sync. It wasn't booting, there was some filesystem corruption.

All five drives were partitioned into two partitions, and RAID set up over both: md0 = /dev/sd?1 and md1 = /dev/sd?2
(All partitions were marked linux-raid-autodetect in the partition table type field)

Made a bootable USB (10.04 Desktop edition, usb-creator) so I could swap
out the CD drive for a big HDD and dump a quick backup onto it. (System
has only 6 SATA ports and 5 were taken by the array).

Booted. Launched terminal. Installed mdadm via aptitude. Fired up
Firefox for reference.

Tried to assemble the array. (mdadm --assemble /dev/md1 /dev/sd?2)

Got "device or resource is busy" error on /dev/sde2 from mdadm.

Ran "fuser" to see what was using it. Turns out it was the kernel, for
swap.

!!! RAGE !!!

((Then swapoff -a and frantic recovery attempts since one drive was
already bad. :( We'll see if I get an okay backup off this or not.))

I have NO idea why linux decided to do this. Will update with more info
as I get it.

Random additional thoughts:
 - the contents of the raid: md0 = boot; md1 = LVM group with root (XFS) and swap volumes.
 - maybe a UUID collision? once I'm done dumping files I'll look at that sort of thing.
 - It was rather difficult to avoid profanity in typing up this bug report.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-23-generic 2.6.32-23.37
Regression: No
Reproducible: No
ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-generic x86_64
NonfreeKernelModules: fglrx
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  dan        1990 F.... pulseaudio
 /dev/snd/pcmC0D0p:   dan        1990 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc220000 irq 17'
   Mixer name	: 'Conexant CX20561 (Hermosa)'
   Components	: 'HDA:14f15051,17aa2100,00100000 HDA:14f12c06,17aa2122,00100000'
   Controls      : 14
   Simple ctrls  : 7
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7VHT12WW-1.01'
   Mixer name	: 'ThinkPad EC 7VHT12WW-1.01'
   Components	: ''
   Controls      : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Sun Jul 18 15:43:01 2010
EcryptfsInUse: Yes
Frequency: This has only happened once.
HibernationDevice: RESUME=UUID=2e67e80f-9fe0-4bb3-93fc-7b8a545e747d
MachineType: LENOVO 2081CTO
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=6f5a17ec-eb58-42ce-b69b-f99e8c5b7473 ro quiet splash  crashkernel=384M-2G:64M,2G-:128M
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
WpaSupplicantLog:
 
dmi.bios.date: 04/22/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6FET66WW (2.16 )
dmi.board.name: 2081CTO
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:bvr6FET66WW(2.16):bd04/22/2009:svnLENOVO:pn2081CTO:pvrThinkPadT500:rvnLENOVO:rn2081CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2081CTO
dmi.product.version: ThinkPad T500
dmi.sys.vendor: LENOVO

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


** Tags: amd64 apport-bug lucid needs-upstream-testing

-- 
10.04 LiveCD (USB-ified with usb-creator) decided to use an existing HDD partition for swap.
https://bugs.launchpad.net/bugs/607006
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