Ubuntu
linux package

early printk over EHCI not enabled in configuration...

Bug #589123 reported by Daniel J Blueman
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Won't Fix
Undecided
Tim Gardner
Declined for Maverick by Tim Gardner

Bug Description

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.

Jeremy Foshee (jeremyfoshee)
tags: added: kernel-core kernel-needs-review
Changed in linux (Ubuntu):
status: New → Triaged
importance: Undecided → Medium
Chase Douglas (chasedouglas)
tags: added: kernel-candidate kernel-reviewed
removed: kernel-needs-review
Chase Douglas (chasedouglas)
tags: removed: kernel-candidate
Leann Ogasawara (leannogasawara)
tags: added: kconfig
Revision history for this message
Tim Gardner (timg-tpi) wrote :

I'm declining to enable this option since I do not believe it should be in a production kernel, particularly in light of the comments in the Kconfig description, e.g., "For normal operation it is not recommended because it looks ugly and doesn't cooperate with klogd/syslogd or the X server. You should normally N here, unless you want to debug such a crash. You need usb debug device."

Changed in linux (Ubuntu):
assignee: nobody → Tim Gardner (timg-tpi)
importance: Medium → Undecided
status: Triaged → Won't Fix
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