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    SubjectRe: [PATCH] i486 CR4 oops, no_console_suspend
    On Tue, Aug 19, 2008 at 09:07:26AM -0700, H. Peter Anvin wrote:
    > Ingo Molnar wrote:
    > >
    > >i've had trouble no end with getting even kernel messages out to the
    > >serial console during critical phases of suspend/resume. (especially in
    > >combination with earlyprintk=ttyS0 - not surprisingly)
    > >
    > >Especially during resume the UART is initialized back to something
    > >really slow - 300 bauds or 9600 bauds. (depends on the chipset i guess)
    > >So even though it works, it will only worked reliably when i
    > >standardized all my baud settings to that very low setting.
    > >
    >
    > Probably depends on the BIOS, actually; I suspect you end up with the
    > standard BIOS setting, which is *usually* 9600 bps.

    I have grub, the kernel, and a getty all set to 115200, for suspend,
    resume, or reboot it's always 115200. With grub there's no BIOS
    guessing, it sets it to a configured state.

    --
    David Fries <david@fries.net>
    http://fries.net/~david/ (PGP encryption key available)


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