Re: [bug] latest -git boot hang

Ingo Molnar
2008-10-11T07:20:26Z

* Tejun Heo <tj@kernel.org> wrote:

> > It does sound like perhaps the option should be hidden more, if it's
> > really only reasonably enabled for some very specialized distro
> > debuggers, not normal kernel people.
>
> Yeap, if fedora didn't work, I think it should be hidden. Do we
> already have place to hide things like this?

in my local testing i'm using simple annotations like the one attached
further below. Any objections against sending my BROKEN_BOOT_ALLOWED kit
upstream, and merge my annotations for various kernel features that
break a generic distro bootup?

Right now i have about 40 such annotations for -tip testing:

fs/Kconfig: depends on BROKEN_BOOT_ALLOWED
fs/Kconfig: depends on BROKEN_BOOT_ALLOWED
security/selinux/Kconfig: depends on BROKEN_BOOT_ALLOWED
security/smack/Kconfig: depends on BROKEN_BOOT_ALLOWED
security/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/net/appletalk/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/net/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/media/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/scsi/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/watchdog/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/watchdog/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/ide/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/i2c/busses/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/block/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/console/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/video/console/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/mtd/Kconfig: depends on BROKEN_BOOT_ALLOWED
drivers/isdn/icn/Kconfig: depends on BROKEN_BOOT_ALLOWED
lib/Kconfig.kgdb: depends on BROKEN_BOOT_ALLOWED
lib/Kconfig.debug: depends on BROKEN_BOOT_ALLOWED
lib/Kconfig.debug: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig.debug: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: # depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig: depends on BROKEN_BOOT_ALLOWED
arch/x86/Kconfig.cpu: depends on BROKEN_BOOT_ALLOWED

and note the stark contrast to CONFIG_BROKEN - sometimes a given
functionality is really not meant to be enabled on a generic system.

Ingo

---------------->
Subject: qa: no ext devt
From: Ingo Molnar <mingo@elte.hu>
Date: Fri Oct 10 22:54:57 CEST 2008

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
lib/Kconfig.debug | 2 ++
1 file changed, 2 insertions(+)

Index: linux/lib/Kconfig.debug
===================================================================
--- linux.orig/lib/Kconfig.debug
+++ linux/lib/Kconfig.debug
@@ -670,6 +670,8 @@ config DEBUG_BLOCK_EXT_DEVT
bool "Force extended block device numbers and spread them"
depends on DEBUG_KERNEL
depends on BLOCK
+ depends on BROKEN_BOOT_ALLOWED
+ select BROKEN_BOOT
default n
help
Conventionally, block device numbers are allocated from