I'm having similar(?) problems with the 3.1 release laptop kernel on the x86 port.

About 10-20% of the time it gets stuck in init and never finishes. A few times I got the debug prompt you showed. I haven't looked at a trace yet (didn't know how) so I can't compare. But there seems to be a problem in init somewhere and may not be a mac68k issue.

Not very helpful perhaps but another data point.

Cheers,

Rand
http://www.bsdforums.org/forums/showthread.php?t=47890

-------- Original Message --------
From: Hauke Fath <hauke@Espresso.Rhein-Neckar.DE>
Apparently from: bounces-port-mac68k-owner-randux=safe-mail.net@NetBSD.org
To: port-mac68k@netbsd.org
Subject: kernels hanging while booting multi-user?
Date: Sun, 11 Mar 2007 00:15:55 +0100

> Hi,
> 
> does anyone run mac68k current or netbsd-4 branch kernels successfully ATM?
> 
> I am experiencing hangs with both a netbsd-4 installation on a Quadra 560,
> and -current kernels on a 4.99.5 userland on another Quadra 650. In both
> cases I can do stuff while in single-user mode, but both systems lock up
> when I try to boot to multi-user. The stack traces I get look fairly
> similar:
> 
> (1)
> 
> NetBSD 4.0_BETA2 (GENERICSBC) #0: Thu Mar  8 17:54:00 CET 2007
> 	hf@Hochstuhl:/var/obj/netbsd-builds/4/mac68k/sys/arch/mac68k/compile/GENERICSBC
> Apple Macintosh Quadra 650  (68040)
> 
> [...]
> 
> [-- break #1 sent -- `\z' -- Fri Mar  9 23:25:27 2007]
> Stopped in pid 1244.1 (rcorder) at netbsd:cpu_Debugger+0x6: unlk a6
> db> t
> cpu_Debugger(8,1,ae6a44,ae6a00,2a8630) + 6
> zstty_stint(ae6a44,0) + 12a
> zsc_intr_hard(ae6a00,2a8634,772da4c,2251c2,ae6a00) + d4
> zshard(ae6a00) + 10
> intr_dispatch(70) + 34
> intrhand(2a8634,1,0,505,8) + a
> uvm_fault_internal(2a8630,5000000,1,0) + 7c
> trap(8,505,5000000) + 5e6
> copyout(?)
> copyout_vmspace(6e08c30,7000000,8000,ef) + 4a
> uiomove(7000000,ef,772dea4,78cd58c,0,0,772de0c,0) +  70
> ffs_read(772de20,266300,78cd58c,772dea4,0) + 344
> VOP_READ(78cd58c,772dea4,0,6e00f3c,78cd58c,20001) + 32
> vn_read(6ee16f00,6e16f30,772dea4,6e00f3c,1) + 94
> dofileread(6e0abd0,3,6e16f00,8000,2000,6e16f30,1,772df78) + 8a
> sys_read(6e0abd0,772df38,772df78) + 52
> syscall_plain(3,6e0abd0,772dfb4,c300,a) + bc
> syscall(3) + 62
> trap0() + e
> db> reboot
> syncing disks... done
> unmounting file systems...
> 
> 
> (2)
> 
> NetBSD 4.99.13 (GENERIC-$Revision: 1.176 $) #2: Sat Mar 10 23:36:02 CET 2007
>       hauke@q650:/usr/src/sys/arch/mac68k/compile/SUNCLOCK
> Apple Macintosh Quadra 650  (68040)
> 
> [...]
> 
> Starting dhclient.
> Building databases...
> Starting syslogd.
> Checking for core dump...
> [-- break #1 sent -- `\z' -- Sat Mar 10 23:40:49 2007]
> Stopped in pid 168.1 (savecore) at netbsd:cpu_Debugger+0x6: unlk a6
> db> t
> cpu_Debugger(8,4,863244,863200,88e9c84) + 6
> zstty_stint(863244,0) + 82
> zsc_intr_hard(863200,4,28659c,88e9ca4,12ecf4) + 5a
> zshard(863200) + 16
> intr_dispatch(70) + 4c
> intrhand(?)
> copyout_vmspace(6fa8b40,28659c,ffffbeac,4) + a
> uiomove(28659c,4,88e9ea0) + a2
> mmrw(201,88e9ea0,0) + 196
> spec_read(88e9e14,6fb99c0,88e9e28,ef274,88e9e14) + a8
> ufsspec_read(88e9e14,1687ec,89df20c,88e9ea0,0) + 36
> VOP_READ(89df20c,88e9ea0,0,6fa0f00,89df20c,20001) + 38
> vn_read(6fb99c0,88e9f04,88e9ea0,6fa0f00,0) + 98
> dofileread(6faa420,4,6fb99c0,ffffbeac,4,88e9f04,0,88e9f38) + 92
> sys_pread(6faa420,88e9f40,88e9f38) + ac
> syscall_plain(c6,6faa420,88e9fb4,4,2) + b6
> syscall(c6) + 60
> trap0() + e
> db>
> 
> A 4.99.5 kernel boots just fine on the above installation.
> 
> Any ideas?
> 
> 	hauke
> 
> --
> "It's never straight up and down"     (DEVO)