Bug 5679

Summary:	Kernel fails to boot on new powerbooks 12"
Product:	Platform Specific/Hardware	Reporter:	Tommaso Visconti (t.visconti)
Component:	PPC-32	Assignee:	platform_ppc-32
Status:	REJECTED INSUFFICIENT_DATA
Severity:	high	CC:	bunk, debian, protasnb
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	all > 2.6.8	Subsystem:
Regression:	Yes	Bisected commit-id:

Description Tommaso Visconti 2005-11-29 17:10:32 UTC

Most recent kernel where this bug did not occur: 2.6.8

Distribution: Gentoo 2005.1 - Ubuntu 5.10 - Debian Etch

Hardware Environment: PowerBook 12" (july 2005), italian

Problem Description: With these distributions and with every kernel version
newer than 2.6.8, kernel fails to boot. 
There are no error messages, the pc 'freeze' just before the page with the
penguin logo, this is the freezed page:

======================
Welcome to Linux, kernel 2.6.14

linked at	: 0xc0000000
frame buffer at	: 0xa0008000 (phys), 0xd0008000 (log)
klimit		: 0xc042c018
MSR		: 0x00003030
HID0		: 0x8410c0bc

pmac_init(): exit
id mach(): done
MMU:enter
MMU: hw init
hash:enter
hash:find piece
hash:patch
hash:done
MMU:mapin
MMU:setio
MMU:exit <-(here it stops)
======================
Sometimes the final word 'exit' is not clear (some pixels are in strange positions)

Steps to reproduce: boot with a cd of mentioned distributions or with any kernel
version newer than 2.6.8

Comment 1 Ren 2005-12-23 03:23:43 UTC

Same powerboo6,8 and almost same behavior. Except that my boot process hangs at
different points. Some rare times the kernel boots, but if it hangs, it is
mostly at this point: "setup_arch: enter" and never reaches exit... I compiled
my kernel without the boot logo. The same kernel always works on another but
same powerbook.

Comment 2 Natalie Protasevich 2007-07-04 19:38:38 UTC

Is this problem still present with recent kernel?
Thanks.

Comment 3 Adrian Bunk 2007-09-16 13:15:19 UTC

Please reopen this bug if it's still present with kernel 2.6.22.