I also am getting a consistent kernel panic when plugging / unplugging the
power.
I have a Dell Inspiron Duo, running 64bit Ubuntu 11.10 3.0.0-22-generic.
I can reproduce without logging in. From some searching I tried to disable
pm-utils scripts by
creating empty files in /etc/pm/power.d/, but still results in kernel panic.
Nothing looks interesting in /var/log/. Attached screen shot of kernel panic.
What can I do to help debug what is going on?
# ls -al /etc/pm/power.d/
drwxr-xr-x 2 root root 4096 2012-06-24 16:16 .
drwxr-xr-x 5 root root 4096 2012-06-24 15:46 ..
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 95hdparm-apm
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 anacron
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 disable_wol
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 hal-cd-polling
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 intel-audio-powersave
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 journal-commit
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 laptop-mode
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 pcie_aspm
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 readahead
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 sata_alpm
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 sched-powersave
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 wireless
-rwxr-xr-x 1 root root 0 2012-06-24 16:16 xfs_buffer
# lshw -short
H/W path Device Class Description
=======================================================
system Inspiron 1090 (xxx123x#ABA)
/0 bus Inspiron 1090
/0/0 memory 1MiB BIOS
/0/23 memory 2GiB System Memory
/0/23/0 memory 2GiB SODIMM DDR3 Synchronous 667
MHz (1.5 ns)
/0/da01 processor Intel(R) Atom(TM) CPU N570 @
1.66GHz
/0/da01/da02 memory 1MiB L2 cache
/0/da01/da03 memory 32KiB L1 cache
/0/100 bridge N10 Family DMI Bridge
/0/100/2 display N10 Family Integrated Graphics
Controller
/0/100/2.1 display N10 Family Integrated Graphics
Controller
/0/100/1b multimedia N10/ICH 7 Family High Definition
Audio Controller
/0/100/1c bridge N10/ICH 7 Family PCI Express Port 1
/0/100/1c/0 multimedia BCM70015 Video Decoder [Crystal HD]
/0/100/1c.1 bridge N10/ICH 7 Family PCI Express Port 2
/0/100/1c.1/0 wlan0 network AR9285 Wireless Network Adapter
(PCI-Express)
/0/100/1c.2 bridge N10/ICH 7 Family PCI Express Port 3
/0/100/1c.3 bridge N10/ICH 7 Family PCI Express Port 4
/0/100/1d bus N10/ICH 7 Family USB UHCI
Controller #1
/0/100/1d.1 bus N10/ICH 7 Family USB UHCI
Controller #2
/0/100/1d.2 bus N10/ICH 7 Family USB UHCI
Controller #3
/0/100/1d.3 bus N10/ICH 7 Family USB UHCI
Controller #4
/0/100/1d.7 bus N10/ICH 7 Family USB2 EHCI
Controller
/0/100/1e bridge 82801 Mobile PCI Bridge
/0/100/1f bridge NM10 Family LPC Controller
/0/100/1f.2 scsi0 storage N10/ICH7 Family SATA AHCI Controller
/0/100/1f.2/0.0.0 /dev/sda disk 320GB Hitachi HTS72323
/0/100/1f.2/0.0.0/1 /dev/sda1 volume 59GiB Windows NTFS volume
/0/100/1f.2/0.0.0/2 /dev/sda2 volume 1907MiB Linux swap volume
/0/100/1f.2/0.0.0/3 /dev/sda3 volume 237GiB EXT4 volume
/0/100/1f.3 bus N10/ICH 7 Family SMBus Controller
/1 power Lithium Ion Battery
** Attachment added: "Kernel panic log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/414541/+attachment/3218008/+files/DSCF1184.JPG
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https://bugs.launchpad.net/bugs/414541
Title:
kernel panic on laptop power cable disconnect after disconnecting
ethernet cable
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