2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630 - Kernel

This is a discussion on 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630 - Kernel ; Hi, I'm using the latest Debian 2.6.25-rc7 kernel [0] and I have big troubles with hibernation. With this version, the hibernation (suspend on disk) is sometimes not resuming correctly. The only thing I get is a blinking cursor at the ...

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Thread: 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630

  1. 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630

    Hi,

    I'm using the latest Debian 2.6.25-rc7 kernel [0] and I have big troubles with
    hibernation. With this version, the hibernation (suspend on disk) is
    sometimes not resuming correctly. The only thing I get is a blinking cursor
    at the top-left of the screen. The problem is that it is not easily
    reproducibleÂ*: sometimes it works, sometimes not.

    AFAIK, 2.6.24 is not affected, but 2.6.25-rc6 and -rc7 (at least) are.

    I'm using a Dell Latitude D630. (lspci attached).

    Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    hibernate/resume cycles.

    Regards,

    Didier Raboud, aka OdyX

    N.B. Please keep me CC'ed as I'm not subscribed to the lists.

    [0] http://wiki.debian.org/DebianKernel

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  2. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    Le lundi, 31 mars 2008 18.33:19 Rafael J. Wysocki, vous avez écrit*:
    > On Monday, 31 of March 2008, Didier Raboud wrote:
    > > Hi,

    >
    > Hi,
    >
    > > I'm using the latest Debian 2.6.25-rc7 kernel [0] and I have big troubles
    > > with hibernation. With this version, the hibernation (suspend on disk) is
    > > sometimes not resuming correctly. The only thing I get is a blinking
    > > cursor at the top-left of the screen. The problem is that it is not
    > > easily reproducible*: sometimes it works, sometimes not.
    > >
    > > AFAIK, 2.6.24 is not affected, but 2.6.25-rc6 and -rc7 (at least) are.
    > >
    > > I'm using a Dell Latitude D630. (lspci attached).
    > >
    > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    > > hibernate/resume cycles.

    >
    > Could you please check if the problem is still present if you boot with
    > acpi_new_pts_ordering kernel command line argument?
    >
    > Thanks,
    > Rafael


    Hi.

    It did not help. I had to test 4 hibernation/resume cycles to see the resume
    fail.

    By the way, I just added acp_new_pts_ordering at the end of the Grub line
    beginning by "linux (hd0,1)/vmlinuz(...)". Is that correct*?

    Regards,

    Didier

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  3. Re: 2.6.25-rc7*: hi bernation sometimes not resuming on Dell Latitude D630

    On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:

    > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    > > > hibernate/resume cycles.

    > >
    > > Could you please check if the problem is still present if you boot with
    > > acpi_new_pts_ordering kernel command line argument?

    >
    > By the way, I just added acp_new_pts_ordering at the end of the Grub line
    > beginning by "linux (hd0,1)/vmlinuz(...)". Is that correct*?


    seems strange you should add it to the kopt line and then kick as root
    update-grub

    # kopt=root=/dev/sda1 ro
    it should land
    kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro
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  4. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écrit*:
    > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    >
    >
    > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    > > > > hibernate/resume cycles.
    > > >
    > > > Could you please check if the problem is still present if you boot with
    > > > acpi_new_pts_ordering kernel command line argument?

    > >
    > > By the way, I just added acp_new_pts_ordering at the end of the Grub line
    > > beginning by "linux (hd0,1)/vmlinuz(...)". Is that correct*?

    >
    > seems strange you should add it to the kopt line and then kick as root
    > update-grub
    >
    > # kopt=root=/dev/sda1 ro
    > it should land
    > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro


    Well... I'm using Grub2 (grub-pc). I altered the boot option at boot time but
    forgot to check /proc/cmdline. Will try again and report back.

    Regards,

    Didier

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  5. Re: 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630

    Le lundi, 31 mars 2008 19.36:00 Didier Raboud, vous avez écritÂ*:
    > Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écritÂ*:
    > > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    > >
    > >
    > > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    > > > > > hibernate/resume cycles.
    > > > >
    > > > > Could you please check if the problem is still present if you boot
    > > > > with acpi_new_pts_ordering kernel command line argument?
    > > >
    > > > By the way, I just added acp_new_pts_ordering at the end of the Grub
    > > > line beginning by "linux (hd0,1)/vmlinuz(...)". Is that correctÂ*?

    > >
    > > seems strange you should add it to the kopt line and then kick as root
    > > update-grub
    > >
    > > # kopt=root=/dev/sda1 ro
    > > it should land
    > > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro

    >
    > Well... I'm using Grub2 (grub-pc). I altered the boot option at boot time
    > but forgot to check /proc/cmdline. Will try again and report back.
    >
    > Regards,
    >
    > Didier


    Hi,

    I tried again and ensured that /proc/cmdline 's end was
    acpi_new_pts_ordering . It did work for 2-3 hibernation, but then failed.

    Regards,

    Didier

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  6. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    On Monday, 31 of March 2008, Didier Raboud wrote:
    > Le lundi, 31 mars 2008 19.36:00 Didier Raboud, vous avez écrit*:
    > > Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écrit*:
    > > > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    > > >
    > > >
    > > > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    > > > > > > hibernate/resume cycles.
    > > > > >
    > > > > > Could you please check if the problem is still present if you boot
    > > > > > with acpi_new_pts_ordering kernel command line argument?
    > > > >
    > > > > By the way, I just added acp_new_pts_ordering at the end of the Grub
    > > > > line beginning by "linux (hd0,1)/vmlinuz(...)". Is that correct*?
    > > >
    > > > seems strange you should add it to the kopt line and then kick as root
    > > > update-grub
    > > >
    > > > # kopt=root=/dev/sda1 ro
    > > > it should land
    > > > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro

    > >
    > > Well... I'm using Grub2 (grub-pc). I altered the boot option at boot time
    > > but forgot to check /proc/cmdline. Will try again and report back.
    > >
    > > Regards,
    > >
    > > Didier

    >
    > Hi,
    >
    > I tried again and ensured that /proc/cmdline 's end was
    > acpi_new_pts_ordering . It did work for 2-3 hibernation, but then failed.


    Well, there were quite a lot of suspend-related changes between 2.6.24 and
    now.

    Hmm, do you have CONFIG_USB_SUSPEND set in .config by chance?

    Rafael
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  7. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    Le lundi, 31 mars 2008 22.29:20 Rafael J. Wysocki, vous avez écrit*:
    > On Monday, 31 of March 2008, Didier Raboud wrote:
    > > Le lundi, 31 mars 2008 19.36:00 Didier Raboud, vous avez écrit*:
    > > > Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écrit*:
    > > > > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    > > > >
    > > > >
    > > > > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two
    > > > > > > > successful hibernate/resume cycles.
    > > > > > >
    > > > > > > Could you please check if the problem is still present if you
    > > > > > > boot with acpi_new_pts_ordering kernel command line argument?
    > > > > >
    > > > > > By the way, I just added acp_new_pts_ordering at the end of the
    > > > > > Grub line beginning by "linux (hd0,1)/vmlinuz(...)". Is that
    > > > > > correct*?
    > > > >
    > > > > seems strange you should add it to the kopt line and then kick as
    > > > > root update-grub
    > > > >
    > > > > # kopt=root=/dev/sda1 ro
    > > > > it should land
    > > > > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro
    > > >
    > > > Well... I'm using Grub2 (grub-pc). I altered the boot option at boot
    > > > time but forgot to check /proc/cmdline. Will try again and report back.
    > > >
    > > > Regards,
    > > >
    > > > Didier

    > >
    > > Hi,
    > >
    > > I tried again and ensured that /proc/cmdline 's end was
    > > acpi_new_pts_ordering . It did work for 2-3 hibernation, but then failed.

    >
    > Well, there were quite a lot of suspend-related changes between 2.6.24 and
    > now.
    >
    > Hmm, do you have CONFIG_USB_SUSPEND set in .config by chance?
    >
    > Rafael


    I do (Debian default option)... I will build a kernel without it and retry.

    Didier

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  8. Re: 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630

    Le lundi, 31 mars 2008 23.03:16 Didier Raboud, vous avez écritÂ*:
    > Le lundi, 31 mars 2008 22.29:20 Rafael J. Wysocki, vous avez écritÂ*:
    > > On Monday, 31 of March 2008, Didier Raboud wrote:
    > > > Le lundi, 31 mars 2008 19.36:00 Didier Raboud, vous avez écritÂ*:
    > > > > Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écritÂ*:
    > > > > > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    > > > > >
    > > > > >
    > > > > > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two
    > > > > > > > > successful hibernate/resume cycles.
    > > > > > > >
    > > > > > > > Could you please check if the problem is still present if you
    > > > > > > > boot with acpi_new_pts_ordering kernel command line argument?
    > > > > > >
    > > > > > > By the way, I just added acp_new_pts_ordering at the end of the
    > > > > > > Grub line beginning by "linux (hd0,1)/vmlinuz(...)". Is that
    > > > > > > correctÂ*?
    > > > > >
    > > > > > seems strange you should add it to the kopt line and then kick as
    > > > > > root update-grub
    > > > > >
    > > > > > # kopt=root=/dev/sda1 ro
    > > > > > it should land
    > > > > > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro
    > > > >
    > > > > Well... I'm using Grub2 (grub-pc). I altered the boot option at boot
    > > > > time but forgot to check /proc/cmdline. Will try again and report
    > > > > back.
    > > > >
    > > > > Regards,
    > > > >
    > > > > Didier
    > > >
    > > > Hi,
    > > >
    > > > I tried again and ensured that /proc/cmdline 's end was
    > > > acpi_new_pts_ordering . It did work for 2-3 hibernation, but then
    > > > failed.

    > >
    > > Well, there were quite a lot of suspend-related changes between 2.6.24
    > > and now.
    > >
    > > Hmm, do you have CONFIG_USB_SUSPEND set in .config by chance?
    > >
    > > Rafael

    >
    > I do (Debian default option)... I will build a kernel without it and retry.
    >
    > Didier


    Hi again.

    I compiled the same kernel with CONFIG_USB_SUSPEND not set. After 6
    hibernations, I haven't had a problem for now.

    Regards,

    Didier

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  9. Re: 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630

    Le mardi, 1 avril 2008 08.18:57 Didier Raboud, vous avez écritÂ*:
    > Le lundi, 31 mars 2008 23.03:16 Didier Raboud, vous avez écritÂ*:
    > > Le lundi, 31 mars 2008 22.29:20 Rafael J. Wysocki, vous avez écritÂ*:
    > > > On Monday, 31 of March 2008, Didier Raboud wrote:
    > > > > Le lundi, 31 mars 2008 19.36:00 Didier Raboud, vous avez écritÂ*:
    > > > > > Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écritÂ*:
    > > > > > > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    > > > > > >
    > > > > > >
    > > > > > > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two
    > > > > > > > > > successful hibernate/resume cycles.
    > > > > > > > >
    > > > > > > > > Could you please check if the problem is still present if you
    > > > > > > > > boot with acpi_new_pts_ordering kernel command line argument?
    > > > > > > >
    > > > > > > > By the way, I just added acp_new_pts_ordering at the end of the
    > > > > > > > Grub line beginning by "linux (hd0,1)/vmlinuz(...)". Is that
    > > > > > > > correctÂ*?
    > > > > > >
    > > > > > > seems strange you should add it to the kopt line and then kick as
    > > > > > > root update-grub
    > > > > > >
    > > > > > > # kopt=root=/dev/sda1 ro
    > > > > > > it should land
    > > > > > > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1ro
    > > > > >
    > > > > > Well... I'm using Grub2 (grub-pc). I altered the boot option at
    > > > > > boot time but forgot to check /proc/cmdline. Will try again and
    > > > > > report back.
    > > > > >
    > > > > > Regards,
    > > > > >
    > > > > > Didier
    > > > >
    > > > > Hi,
    > > > >
    > > > > I tried again and ensured that /proc/cmdline 's end was
    > > > > acpi_new_pts_ordering . It did work for 2-3 hibernation, but then
    > > > > failed.
    > > >
    > > > Well, there were quite a lot of suspend-related changes between 2.6.24
    > > > and now.
    > > >
    > > > Hmm, do you have CONFIG_USB_SUSPEND set in .config by chance?
    > > >
    > > > Rafael

    > >
    > > I do (Debian default option)... I will build a kernel without it and
    > > retry.
    > >
    > > Didier

    >
    > Hi again.
    >
    > I compiled the same kernel with CONFIG_USB_SUSPEND not set. After 6
    > hibernations, I haven't had a problem for now.
    >
    > Regards,
    >
    > Didier


    Hi again again,

    It hung after the 10th hibernation...

    I wonder if the problem would not be of Debian's uswsusp binary, because tty1
    tells me that the image is successfully loaded but I just can't act on my box
    afterwards.

    There is a bug open in the Debian BTS requesting a packaging of the new
    upstream version (0.8) but the maintainer is told to be too busy to handle it
    for now.

    Don't know...

    Regards,

    Didier

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  10. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écrit*:
    > (...)
    > Can you please test the in-kernel hibernation, then?
    >
    > Rafael


    Hi,

    would like to. How*?

    # echo -n disk > /sys/power/state

    ?

    Regards,

    Didier

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  11. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    On Tuesday, 1 of April 2008, Didier Raboud wrote:
    > Le mardi, 1 avril 2008 08.18:57 Didier Raboud, vous avez écrit*:
    > > Le lundi, 31 mars 2008 23.03:16 Didier Raboud, vous avez écrit*:
    > > > Le lundi, 31 mars 2008 22.29:20 Rafael J. Wysocki, vous avez écrit*:
    > > > > On Monday, 31 of March 2008, Didier Raboud wrote:
    > > > > > Le lundi, 31 mars 2008 19.36:00 Didier Raboud, vous avez écrit*:
    > > > > > > Le lundi, 31 mars 2008 19.24:55 maximilian attems, vous avez écrit*:
    > > > > > > > On Mon, Mar 31, 2008 at 07:03:13PM +0200, Didier Raboud wrote:
    > > > > > > >
    > > > > > > >
    > > > > > > > > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two
    > > > > > > > > > > successful hibernate/resume cycles.
    > > > > > > > > >
    > > > > > > > > > Could you please check if the problem is still present if you
    > > > > > > > > > boot with acpi_new_pts_ordering kernel command line argument?
    > > > > > > > >
    > > > > > > > > By the way, I just added acp_new_pts_ordering at the end of the
    > > > > > > > > Grub line beginning by "linux (hd0,1)/vmlinuz(...)". Is that
    > > > > > > > > correct*?
    > > > > > > >
    > > > > > > > seems strange you should add it to the kopt line and then kick as
    > > > > > > > root update-grub
    > > > > > > >
    > > > > > > > # kopt=root=/dev/sda1 ro
    > > > > > > > it should land
    > > > > > > > kernel /boot/vmlinuz-2.6.25-rc7-amd64 root=/dev/sda1 ro
    > > > > > >
    > > > > > > Well... I'm using Grub2 (grub-pc). I altered the boot option at
    > > > > > > boot time but forgot to check /proc/cmdline. Will try again and
    > > > > > > report back.
    > > > > > >
    > > > > > > Regards,
    > > > > > >
    > > > > > > Didier
    > > > > >
    > > > > > Hi,
    > > > > >
    > > > > > I tried again and ensured that /proc/cmdline 's end was
    > > > > > acpi_new_pts_ordering . It did work for 2-3 hibernation, but then
    > > > > > failed.
    > > > >
    > > > > Well, there were quite a lot of suspend-related changes between 2.6.24
    > > > > and now.
    > > > >
    > > > > Hmm, do you have CONFIG_USB_SUSPEND set in .config by chance?
    > > > >
    > > > > Rafael
    > > >
    > > > I do (Debian default option)... I will build a kernel without it and
    > > > retry.
    > > >
    > > > Didier

    > >
    > > Hi again.
    > >
    > > I compiled the same kernel with CONFIG_USB_SUSPEND not set. After 6
    > > hibernations, I haven't had a problem for now.
    > >
    > > Regards,
    > >
    > > Didier

    >
    > Hi again again,
    >
    > It hung after the 10th hibernation...
    >
    > I wonder if the problem would not be of Debian's uswsusp binary, because tty1
    > tells me that the image is successfully loaded but I just can't act on my box
    > afterwards.


    I don't really think so. s2disk doesn't really do anything that could hang a
    machine, except for the console switch maybe ...

    > There is a bug open in the Debian BTS requesting a packaging of the new
    > upstream version (0.8) but the maintainer is told to be too busy to handle it
    > for now.
    >
    > Don't know...


    Can you please test the in-kernel hibernation, then?

    Rafael
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  12. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    On Tuesday, 1 of April 2008, Didier Raboud wrote:
    > Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écrit*:
    > > (...)
    > > Can you please test the in-kernel hibernation, then?
    > >
    > > Rafael

    >
    > Hi,
    >
    > would like to. How*?
    >
    > # echo -n disk > /sys/power/state


    Yes, should work without the "-n", too. Of course, you have to use the
    'resume=' kernel command line argument for this to work.

    Perhaps increase the console log level before that.

    Thanks,
    Rafael
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  13. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    Le mardi, 1 avril 2008 23.22:35 Rafael J. Wysocki, vous avez écrit*:
    > On Tuesday, 1 of April 2008, Didier Raboud wrote:
    > > Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écrit*:
    > > > (...)
    > > > Can you please test the in-kernel hibernation, then?
    > > >
    > > > Rafael

    > >
    > > Hi,
    > >
    > > would like to. How*?
    > >
    > > # echo -n disk > /sys/power/state

    >
    > Yes, should work without the "-n", too. Of course, you have to use the
    > 'resume=' kernel command line argument for this to work.
    >
    > Perhaps increase the console log level before that.
    >
    > Thanks,
    > Rafael


    Ok. I found a "better" way to do it*: just uninstall uswsusp and let
    kpowersave use hal to use suspend :-)

    Anyway, so far so good (with USB_SUSPEND not set), no hang. I will test with
    USB_SUSPEND set and the incoming 2.6.25-rc8.

    Regards,

    Didier

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  14. Re: 2.6.25-rc7



    > > > with hibernation. With this version, the hibernation (suspend on disk) is
    > > > sometimes not resuming correctly. The only thing I get is a blinking
    > > > cursor at the top-left of the screen. The problem is that it is not
    > > > easily reproducible*: sometimes it works, sometimes not.
    > > >
    > > > AFAIK, 2.6.24 is not affected, but 2.6.25-rc6 and -rc7 (at least) are.
    > > >
    > > > I'm using a Dell Latitude D630. (lspci attached).
    > > >
    > > > Attached are a 2.6.25-rc7 and a 2.6.24 dmesg's after two successful
    > > > hibernate/resume cycles.

    > >
    > > Could you please check if the problem is still present if you boot with
    > > acpi_new_pts_ordering kernel command line argument?

    >
    > It did not help. I had to test 4 hibernation/resume cycles to see the resume
    > fail.


    Try to unload modules before suspend/reload them after resume?

    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pav...rses/blog.html
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  15. Re: 2.6.25-rc7


    Hi!

    > > > I do (Debian default option)... I will build a kernel without it and
    > > > retry.

    > >
    > > I compiled the same kernel with CONFIG_USB_SUSPEND not set. After 6
    > > hibernations, I haven't had a problem for now.
    > >


    > It hung after the 10th hibernation...
    >
    > I wonder if the problem would not be of Debian's uswsusp binary, because tty1
    > tells me that the image is successfully loaded but I just can't act on my box
    > afterwards.
    >
    > There is a bug open in the Debian BTS requesting a packaging of the new
    > upstream version (0.8) but the maintainer is told to be too busy to handle it
    > for now.
    >
    > Don't know...


    Just do echo disk > /sys/power/state to use swsusp and bypass uswsusp?


    --
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    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pav...rses/blog.html
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  16. Re: 2.6.25-rc7Â*: hibernation sometimes not resuming on Dell Latitude D630

    Le mercredi, 2 avril 2008 14.06:29 Didier Raboud, vous avez écritÂ*:
    > Le mardi, 1 avril 2008 23.22:35 Rafael J. Wysocki, vous avez écritÂ*:
    > > On Tuesday, 1 of April 2008, Didier Raboud wrote:
    > > > Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écritÂ*:
    > > > > (...)
    > > > > Can you please test the in-kernel hibernation, then?
    > > > >
    > > > > Rafael
    > > >
    > > > Hi,
    > > >
    > > > would like to. HowÂ*?
    > > >
    > > > # echo -n disk > /sys/power/state

    > >
    > > Yes, should work without the "-n", too. Of course, you have to use the
    > > 'resume=' kernel command line argument for this to work.
    > >
    > > Perhaps increase the console log level before that.
    > >
    > > Thanks,
    > > Rafael

    >
    > Ok. I found a "better" way to do itÂ*: just uninstall uswsusp and let
    > kpowersave use hal to use suspend :-)
    >
    > Anyway, so far so good (with USB_SUSPEND not set), no hang. I will test
    > with USB_SUSPEND set and the incoming 2.6.25-rc8.
    >
    > Regards,
    >
    > Didier


    So far so good too with "stock" Debian Kernel (2.7.25-rc7-amd64) with
    USB_SUSPEND set. No hang.

    The kernel suspend is less user-friendly than uswsusp though...

    So I bet there is a bug in uswsusp's kernel part ?

    Regards,

    Didier

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  17. Re: 2.6.25-rc7*: hibernation sometimes not resuming on Dell Latitude D630

    On Thursday, 3 of April 2008, Didier Raboud wrote:
    > Le mercredi, 2 avril 2008 14.06:29 Didier Raboud, vous avez écrit*:
    > > Le mardi, 1 avril 2008 23.22:35 Rafael J. Wysocki, vous avez écrit*:
    > > > On Tuesday, 1 of April 2008, Didier Raboud wrote:
    > > > > Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écrit*:
    > > > > > (...)
    > > > > > Can you please test the in-kernel hibernation, then?
    > > > > >
    > > > > > Rafael
    > > > >
    > > > > Hi,
    > > > >
    > > > > would like to. How*?
    > > > >
    > > > > # echo -n disk > /sys/power/state
    > > >
    > > > Yes, should work without the "-n", too. Of course, you have to use the
    > > > 'resume=' kernel command line argument for this to work.
    > > >
    > > > Perhaps increase the console log level before that.
    > > >
    > > > Thanks,
    > > > Rafael

    > >
    > > Ok. I found a "better" way to do it*: just uninstall uswsusp and let
    > > kpowersave use hal to use suspend :-)
    > >
    > > Anyway, so far so good (with USB_SUSPEND not set), no hang. I will test
    > > with USB_SUSPEND set and the incoming 2.6.25-rc8.
    > >
    > > Regards,
    > >
    > > Didier

    >
    > So far so good too with "stock" Debian Kernel (2.7.25-rc7-amd64) with
    > USB_SUSPEND set. No hang.
    >
    > The kernel suspend is less user-friendly than uswsusp though...
    >
    > So I bet there is a bug in uswsusp's kernel part ?


    It's almost the same as the in-kernel one, especially as far as the resume is
    concerned. The simplest explanation coming to mind is that the image is
    somehow damaged in the uswsusp case.

    You can use the uswsusp's checksumming to verify that, though.

    Thanks,
    Rafael
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  18. Re: 2.6.25-rc8*: hibernation sometimes not resuming on Dell Latitude D630 (was: -rc7)

    Le jeudi, 3 avril 2008 17.48:57 Rafael J. Wysocki, vous avez écrit*:
    > On Thursday, 3 of April 2008, Didier Raboud wrote:
    > > Le mercredi, 2 avril 2008 14.06:29 Didier Raboud, vous avez écrit*:
    > > > Le mardi, 1 avril 2008 23.22:35 Rafael J. Wysocki, vous avez écrit*:
    > > > > On Tuesday, 1 of April 2008, Didier Raboud wrote:
    > > > > > Le mardi, 1 avril 2008 23.11:15 Rafael J. Wysocki, vous avez écrit*:
    > > > > > > (...)
    > > > > > > Can you please test the in-kernel hibernation, then?
    > > > > > >
    > > > > > > Rafael
    > > > > >
    > > > > > Hi,
    > > > > >
    > > > > > would like to. How*?
    > > > > >
    > > > > > # echo -n disk > /sys/power/state
    > > > >
    > > > > Yes, should work without the "-n", too. Of course, you have to use
    > > > > the 'resume=' kernel command line argument for this to work.
    > > > >
    > > > > Perhaps increase the console log level before that.
    > > > >
    > > > > Thanks,
    > > > > Rafael
    > > >
    > > > Ok. I found a "better" way to do it*: just uninstall uswsusp and let
    > > > kpowersave use hal to use suspend :-)
    > > >
    > > > Anyway, so far so good (with USB_SUSPEND not set), no hang. I will test
    > > > with USB_SUSPEND set and the incoming 2.6.25-rc8.
    > > >
    > > > Regards,
    > > >
    > > > Didier

    > >
    > > So far so good too with "stock" Debian Kernel (2.7.25-rc7-amd64) with
    > > USB_SUSPEND set. No hang.
    > >
    > > The kernel suspend is less user-friendly than uswsusp though...
    > >
    > > So I bet there is a bug in uswsusp's kernel part ?

    >
    > It's almost the same as the in-kernel one, especially as far as the resume
    > is concerned. The simplest explanation coming to mind is that the image is
    > somehow damaged in the uswsusp case.
    >
    > You can use the uswsusp's checksumming to verify that, though.
    >
    > Thanks,
    > Rafael


    Hi,

    I upgraded my uswsusp to 0.8 and my kernel to 2.6.25-rc8 from Debian. I
    activated the checksumming. I have hangs _again_ (I probably always had...).

    Here's my /etc/uswsusp.conf*:
    # --------
    # /etc/uswsusp.conf(8) -- Configuration file for s2disk/s2both
    resume device = /dev/mapper/Tamino-swap_1
    compress = y
    early writeout = y
    image size = 967540654
    shutdown method = platform
    compute checksum = y
    # --------

    I don't know how I can help further... I will try without "early writeout".

    Any help would be greatly appreciated*!

    Best regards,

    Didier

    --
    Didier Raboud
    Cornalles 2
    1802 Corseaux
    didier@raboud.com
    079 480 67 82

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