The workaround did the trick for me too.  I hadn't suffered any  
corruption but I was comsidering going back to Jaunty and I am pleased  
not to have to.

Simon

Sent from My iPhone

On 16 Dec 2009, at 14:28, Gav Mack <email address hidden> wrote:

> @Andrew Simpson:  Many thanks for the instructions. The workaround has
> dropped my boot time from always over 2 minutes to 30 seconds, what I
> was expecting back in late September when I installed the Beta with  
> the
> Super Talent SSD!  Almost 3 months of woe now at an end thank  
> goodness.
> Recreated my user account from scratch because after further
> investigation my other half thought it was a good idea to delete the
> timed out applets including window-picker so I couldn't put them back
> again!
>
> -- 
> devkit-disks-probe-ata-smart causes HSM Violations on SSD, and  
> potential hardware death
> https://bugs.launchpad.net/bugs/445852
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in The Linux Kernel: Confirmed
> Status in “devicekit-disks” package in Ubuntu: Triaged
> Status in “libatasmart” package in Ubuntu: Triaged
>
> Bug description:
> TEMPORARY WORK AROUND FOR THIS PROBLEM:
>
> 1. sudo gedit /lib/udev/rules.d/95-devkit-disks.rules
>
> 2. locate the following lines (about 1/3 the way into the file;  
> search for "smart")
>
> # ATA disks driven by libata
> KERNEL=="sd*[!0-9]", ATTR{removable}=="0", ENV{ID_BUS}=="ata", ENV 
> {DEVTYPE}=="disk", IMPORT{program}="devkit-disks-probe-ata-smart  
> $tempnode"
>
> 3. comment out the second line by adding a # in front, so you should  
> have
>
> # ATA disks driven by libata
> #KERNEL=="sd*[!0-9]", ATTR{removable}=="0", ENV{ID_BUS}=="ata", ENV 
> {DEVTYPE}=="disk", IMPORT{program}="devkit-disks-probe-ata-smart  
> $tempnode"
>
> 4. save the file and reboot
>
>
> BUG DESCRIPTION FOLLOWS:
>
> In the Karmic beta I experience ssd stalls during the boot process.   
> It happens almost everytime before xsplash loads and happens again  
> frequently between logging into gdm and the desktop loading.  When  
> it happens during login I think it is making gnome time out on  
> loading panel items as I get errors related to lots of panel items  
> failing to load.  If I log out and back in again when the ssd isn't  
> stalled the panel items load fine.
>
> When it happens the following messages appear before xplash (or in  
> dmesg when it happens after gdm):
>
> ata2: lost interrupt (Status 0x58)
> ata2: drained 16384 bytes to clear DRQ.
> ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
> ata2.00: BMDMA stat 0x4
> ata2.00: cmd c8/00:40:cb:60:32/00:00:00:00:00/e0 tag 0 dma 32768 in
> res 58/00:40:cb:60:32/00:00:00:00:00/e0 Emask 0x2 (HSM violation)
> ata2.00: status: { DRDY DRQ }
> ata2: soft resetting link
> ata2.00: configured for UDMA/66
> ata2: EH complete
>
> I did not have this issue in jaunty with this hardware and I don't  
> think it has happened once the system is fully loaded.  I am running  
> karmic unr on an Acer Aspire One netbook.
>
> ProblemType: Bug
> AplayDevices:
>  **** List of PLAYBACK Hardware Devices ****
>  card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> Architecture: i386
> ArecordDevices:
>  **** List of CAPTURE Hardware Devices ****
>  card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
>    Subdevices: 1/1
>    Subdevice #0: subdevice #0
> AudioDevicesInUse:
>  USER        PID ACCESS COMMAND
>  /dev/snd/controlC0:  luke       1990 F.... pulseaudio
> CRDA: Error: [Errno 2] No such file or directory
> Card0.Amixer.info:
>  Card hw:0 'Intel'/'HDA Intel at 0x58540000 irq 16'
>    Mixer name    : 'Realtek ALC268'
>    Components    : 'HDA:10ec0268,1025015b,00100101'
>    Controls      : 9
>    Simple ctrls  : 6
> CheckboxSubmission: 12ef539f3788bfbc46bc56b5c28128a6
> CheckboxSystem: c69722ecac764861be52925fa50b4dcc
> Date: Wed Oct  7 17:54:56 2009
> DistroRelease: Ubuntu 9.10
> HibernationDevice: RESUME=UUID=8d44b89b-2edb-4c02-a4be-94bd25b65081
> MachineType: Acer AOA110
> Package: linux-image-2.6.31-12-generic 2.6.31-12.40
> ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-12-generic  
> root=UUID=039a096e-3486-4898-9eeb-44a705f8b7fd ro quiet splash  
> elevator=noop usbcore.autosuspend=1
> ProcEnviron:
>  LANG=en_CA.UTF-8
>  SHELL=/bin/bash
> ProcVersionSignature: Ubuntu 2.6.31-12.40-generic
> RelatedPackageVersions: linux-firmware 1.21
> RfKill:
>  0: phy0: Wireless LAN
>   Soft blocked: no
>   Hard blocked: no
> SourcePackage: linux
> Tags:  ubuntu-unr
> Uname: Linux 2.6.31-12-generic i686
> XsessionErrors:
>  (gnome-settings-daemon:2006): GLib-CRITICAL **: g_propagate_error:  
> assertion `src != NULL' failed
>  (gnome-settings-daemon:2006): GLib-CRITICAL **: g_propagate_error:  
> assertion `src != NULL' failed
>  (nautilus:2092): Eel-CRITICAL **: eel_preferences_get_boolean:  
> assertion `preferences_is_initialized ()' failed
>  (polkit-gnome-authentication-agent-1:2118): GLib-CRITICAL **:  
> g_once_init_leave: assertion `initialization_value != 0' failed
>  (gnome-panel:2048): Gdk-WARNING **: /build/buildd/gtk+2.0-2.18.2/ 
> gdk/x11/gdkdrawable-x11.c:952 drawable is not a pixmap or window
> dmi.bios.date: 10/06/2008
> dmi.bios.vendor: Acer
> dmi.bios.version: v0.3309
> dmi.board.asset.tag: Base Board Asset Tag
> dmi.board.vendor: Acer
> dmi.board.version: Base Board Version
> dmi.chassis.type: 1
> dmi.chassis.vendor: Chassis Manufacturer
> dmi.chassis.version: Chassis Version
> dmi.modalias:  
> dmi:bvnAcer:bvrv0.3309: 
> bd10/ 
> 06/ 
> 2008: 
> svnAcer:pnAOA110: 
> pvr1: 
> rvnAcer:rn:rvrBaseBoardVersion:cvnChassisManufacturer:ct1: 
> cvrChassisVersion:
> dmi.product.name: AOA110
> dmi.product.version: 1
> dmi.sys.vendor: Acer
>
>
>
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