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i have two hdds in my system: one for normal work and a second one for backups.
the second harddrive is put to sleep after startup and is only accessed, when my automatic backup scripts work around midnight.
all partitions on aforesaid drive are unmounted, when it is not in use.

when i trigger hibernate, the typical cursor blinking starts and after a few seconds the second hard drive is waken up, all hibernation data is put on the other harddisk and the pc shuts down.
this wake up is clearly not related to the bios (there was a blacklisting patch to libata for a similar problem in 2008), but a kernel (libata? or other software) problem. something accesses the second harddrive in a way, that wakes it up unnecessarily, which potentially reduces its lifespan.

the harddrive in question is a seagate 7200.8 (ST3250823AS) and is
attached to a ICH10 southbridge (8086:3a22) on my intel DG45ID
mainboard. i use smartd to monitor the other hdd only. the kernel is a
precompiled 2.6.32.8 vanilla AMD64 kernel (from http://kernel.ubuntu.com
/~kernel-ppa/mainline/v2.6.32.8/). the system runs ubuntu 9.10. dmesg
does not give any hints.


Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ameno 2767 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xe0520000 irq 27'
   Mixer name : 'Intel G45 DEVELK'
   Components : 'HDA:111d7676,80865002,00100202 HDA:80862803,80860101,00100000'
   Controls : 39
   Simple ctrls : 23
DistroRelease: Ubuntu 9.10
HibernationDevice:
 resume=/dev/mapper/vg-root resume_offset=135168
 #resume=UUID=54094b03-e42b-4411-baa8-385c88245709 resume_offset=135168
Package: linux (not installed)
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.33-020633-generic root=/dev/mapper/vg-root ro ip=none usbcore.autosuspend=1 resume=/dev/mapper/vg-root resume_offset=135168
RfKill:

Uname: Linux 2.6.33-020633-generic x86_64
UserGroups: adm admin audio cdrom dialout fuse lpadmin mnt netdev plugdev sambashare scanner video
WpaSupplicantLog:

XsessionErrors:
 (gnome-settings-daemon:2687): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:2812): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:2772): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (gnome-panel:2769): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width -12 and height 24
 (gnome-panel:2769): Gdk-WARNING **: /build/buildd/gtk+2.0-2.18.3/gdk/x11/gdkdrawable-x11.c:952 drawable is not a pixmap or window
dmi.bios.date: 02/09/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: IDG4510H.86A.0127.2010.0209.1609
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: DG45ID
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE27729-307
dmi.chassis.type: 3
dmi.modalias: dmi:bvnIntelCorp.:bvrIDG4510H.86A.0127.2010.0209.1609:bd02/09/2010:svn:pn:pvr:rvnIntelCorporation:rnDG45ID:rvrAAE27729-307:cvn:ct3:cvr:

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


** Tags: karmic kernel-series-unknown needs-kernel-logs needs-upstream-testing
-- 
hibernating wakes up sleeping harddrives
https://bugs.launchpad.net/bugs/524407
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