lkml.org 
[lkml]   [2002]   [Nov]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [lkcd-devel] Re: What's left over.
    From
    Date
    Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

    > On Tue, 2002-11-05 at 18:00, Werner Almesberger wrote:
    > > Yes, I've just checked with Eric, and he hasn't received any
    > > indication from Linus so far. I posted a reminder to linux-kernel.
    > > I'd really hate to see kexec miss 2.6.
    >
    > Let me ask the same dumb question - what does kexec need that a dumper
    > doesn't. In other words given reboot/trap hooks can kexec happily live
    > as a standalone module ?

    Kexec primarily needs the reboot/trap hooks in working order, and exported,
    for it to live externally to the kernel.

    Currently the reboot_notifier call chain is private to sys.c, and is not
    exported even to other parts of the kernel.

    Even together device_shutdown, and the reboot_notifier do not properly shutdown
    the cpus on an SMP system.

    Plus we are missing quite a ->shutdown methods at random in the kernel, and if
    kexec is not easily available someone might not get around to writing
    and debugging them.

    Plus a system call seems the natural interface for something that
    appears to be a reboot.

    Eric
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:30    [W:4.519 / U:0.080 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site