Public bug reported:
In current Maverick and mainline kernels, CONFIG_EARLY_PRINTK_DBGP is
unset, preventing debugging boot and/or runtime issues where no legacy
serial console is available (eg laptops, legacy free motherboards etc).
Since legacy serial has had it's day, this is becoming a more universal
way to debug as it requires no additional hardware.
Since CONFIG_USB_SERIAL_DEBUG is already set, the additional code for
using this as the USB serial debug mechanism as a console is small, thus
the real-world impact is zero. Note that EARLY_PRINTK_DBGP is needed for
the non-'early' console.
Please enable in mainline and Ubuntu Maverick kernels.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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early printk over EHCI not enabled in configuration...
https://bugs.launchpad.net/bugs/589123
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