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    SubjectRe: [PATCH 0/2] Kexec jump: The first step to kexec base hibernation
    Hi!

    > > Looks interesting... but I was feeling strange dejavu reading
    > > this... and that's because you pasted the changelog twice :-).
    > >
    >
    > Sorry, I should have re-checked the mail before sending out.

    Were your patches enough to get hibernation working? I got kexec to
    work here, so I guess I'm one step closer...

    ...video does not work in the kexec-ed kernel, unless I boot with
    vga=1.

    > > How fast can kexec boot secondary kernel?
    >
    > I measure it on my IBM T42 with CONFIG_PRINTK_TIME=y. The boot-up time
    > is about 4.35s from kexec is issued to root mounted in kexec kernel.

    Not bad...

    > > > 2. Compile the kexec-tools with kdump and kjump patches added, the
    > > > kdump patch can be found at:
    > > >
    > > > http://lse.sourceforge.net/kdump/patches/kexec-tools-1.101-dkump10.patch
    > >
    > > I got 404 error :-(.
    >
    > Sorry, typo problem. The URL should be:
    > http://lse.sourceforge.net/kdump/patches/kexec-tools-1.101-kdump10.patch

    That works, thanks.

    > > > 7. In the kexec booted kernel, trigger the jumping back with following
    > > > shell command.
    > > >
    > > > echo <a>:<b> > /sys/power/resume
    > > >
    > > > Where <a> and <b> is non-negative integer, at least one of them must
    > > > be non-zero.
    > >
    > > What does a and b mean?

    > a and b has no meaning. They are only used to trigger the resume
    > process. This will be fixed in the future version.

    Ok.
    Pavel
    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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