Public bug reported:
After backing up with deja dup to an external hard drive, I safely removed
drive with nautilus and got a kernel oops.
I was unable to do anything but reboot.
After rebooting, I got the Debian screen, so I ran recovery mode and fsck.
The resolution was a little weird, but I rebooted again and everything was fine.
Apparently, the kernel was unable to write to disk, because nothing matching
the call trace showed up in dmesg.
However, I did get an image image of call trace (attached).
==> version.log <==
Ubuntu 3.2.0-34.53-generic-pae 3.2.33
==> lsb_releaser-rd.log <==
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Manually typed up part of call trace:
==> partial-crash-log.log <==
? wq_worker_sleeping
__schedule
? free_pid
__cleanup_sighand
cfq_exit_cfqq
default_spin_lock_flags
put_io_context
put_io_context
put_io_context
schedule
do_exit
kmsg_dump
printk
oops_end
no_context
__bad_area_nosemaphore
bad_area_nosemaphone
do_page_fault
? format_decode
? default_spin_lock_flags
? update_curr
? console_unlock
? console_trylock
? vmalloc_fault
error_code
? __ticket_spin_lock
deault_spin_lock_flags
_raw_spin_lock_irqsave
scsi_device_dev_release_usercontext
execute_in_process_context
scsi_device_dev_release
device_release
? rcu_irq_exit
kobject_release
? kobject_del
kref_put
kobject_put
? scsi_cmd_ioctl
put_device
scsi_request_fn
__blk_run_queue
cfq_kick_queue
process_one_work
? insert_work
? cfq_schedule_dispatch
worker_thread
? manage_workers.isra.28
kthread
? flush_kthread_worker
kernel_thread_helper
kthread_data
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-34-generic-pae 3.2.0-34.53
ProcVersionSignature: Ubuntu 3.2.0-34.53-generic-pae 3.2.33
Uname: Linux 3.2.0-34-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu15
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nathaniel 2026 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf2520000 irq 44'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:14f1506e,17aa21ce,00100003
HDA:80862805,80860101,00100000'
Controls : 27
Simple ctrls : 9
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [off]
Date: Thu Dec 6 09:53:06 2012
HibernationDevice: RESUME=UUID=4bbdd497-d05c-489c-a6a4-7838943635ba
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: LENOVO 4177CTO
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-34-generic-pae
root=UUID=835b481e-7572-4555-ba06-3afc469e53e9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-34-generic-pae N/A
linux-backports-modules-3.2.0-34-generic-pae N/A
linux-firmware 1.79.1
RfKill:
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/28/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 83ET67WW (1.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4177CTO
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:bvr83ET67WW(1.37):bd11/28/2011:svnLENOVO:pn4177CTO:pvrThinkPadT420:rvnLENOVO:rn4177CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4177CTO
dmi.product.version: ThinkPad T420
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: apport-bug i386 precise running-unity staging
** Attachment added: "JPEG of kernel oops"
https://bugs.launchpad.net/bugs/1087341/+attachment/3453142/+files/log-merge.jpg
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https://bugs.launchpad.net/bugs/1087341
Title:
Kernel oops after unmounting
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