port-alpha/38941: 4.99.64 hangs on alpha during boot

[adam.hoka%gmail.com@localhost]

>Number:         38941
>Category:       port-alpha
>Synopsis:       4.99.64 hangs on alpha during boot
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    port-alpha-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 11 13:20:00 +0000 2008
>Originator:     Adam Hoka
>Release:        NetBSD/alpha 4.99.64
>Organization:
>Environment:
NetBSD 4.99.64 (GENERIC-$Revision: 1.323 $) #0: Thu Jun  5 22:31:00 PDT 2008
>Description:
After booting the current install media the system hangs when asking for the 
terminal type.
If I install the current sets and kernel with a 4.0 media (it boots and works 
OK), it hangs at the same location, after the lines:

root on sd0a dumps on sd0b
root file system type: ffs

I can break into SRM and the debugger.

dmesg with 4.99.64:

AlphaServer DS10 466 MHz, s/n
8192 byte page size, 1 processor.
total memory = 512 MB
(2880 KB reserved for PROM, 509 MB used by NetBSD)
avail memory = 491 MB
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21264-4
cpu0: Architecture extensions: 303<PAT,MVI,FIX,BWX>
tsc0 at mainbus0: 21272 Core Logic Chipset, Cchip rev 0
tsc0: 2 Dchips, 1 memory bus of 16 bytes
tsc0: arrays present: 256MB, 256MB, 0MB, 0MB, Dchip 0 rev 1
tsp0 at tsc0
pci0 at tsp0 bus 0
sio0 at pci0 dev 7 function 0: vendor 0x10b9 product 0x1533 (rev. 0xc3)
tlp0 at pci0 dev 9 function 0: DECchip 21143 Ethernet, pass 4.1
tlp0: interrupting at dec 6600 irq 29
tlp0: DEC, Ethernet address 08:00:2b:86:cf:45
tlp0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
tlp1 at pci0 dev 11 function 0: DECchip 21143 Ethernet, pass 4.1
tlp1: interrupting at dec 6600 irq 30
tlp1: DEC, Ethernet address 08:00:2b:86:cf:46
tlp1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
aceride0 at pci0 dev 13 function 0
aceride0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc1)
aceride0: primary channel interrupting at isa irq 14
atabus0 at aceride0 channel 0
aceride0: secondary channel interrupting at isa irq 15
atabus1 at aceride0 channel 1
mlx0 at pci0 dev 15 function 0: Mylex RAID (v2 interface)
mlx0: interrupting at dec 6600 irq 39
mlx0: DAC960P/PD, 1 channel, firmware 2.49-0-00, 4MB RAM
vga0 at pci0 dev 17 function 0: vendor 0x5333 product 0x8811 (rev. 0x54)
wsdisplay0 at vga0 (kbdmux ignored)
drm at vga0 not configured
isa0 at sio0
lpt0 at isa0 port 0x3bc-0x3bf irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
mcclock0 at isa0 port 0x70-0x71: mc146818 compatible time-of-day clock
stray isa irq 14
stray isa irq 14
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
stray isa irq 14
atapibus0 at atabus0: 2 targets
cd0 at atapibus0 drive 0: <COMPAQ  CDR-8435, , 0013> cdrom removable
WARNING: can't figure what device matches "IDE 0 13 0 0 0 0 0"
root on md0a dumps on md0b
root file system type: ffs
Terminal type? [vt100]
*HANGS HERE*

dmesg with 4.0beta:

AlphaServer DS10 466 MHz, s/n
8192 byte page size, 1 processor.
total memory = 512 MB
(2880 KB reserved for PROM, 509 MB used by NetBSD)
avail memory = 492 MB
mainbus0 (root)
cpu0 at mainbus0: ID 0 (primary), 21264-4
cpu0: Architecture extensions: 303<PAT,MVI,FIX,BWX>
tsc0 at mainbus0: 21272 Core Logic Chipset, Cchip rev 0
tsc0: 2 Dchips, 1 memory bus of 16 bytes
tsc0: arrays present: 256MB, 256MB, 0MB, 0MB, Dchip 0 rev 1
tsp0 at tsc0
pci0 at tsp0 bus 0
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
sio0 at pci0 dev 7 function 0: vendor 0x10b9 product 0x1533 (rev. 0xc3)
tlp0 at pci0 dev 9 function 0: DECchip 21143 Ethernet, pass 4.1
tlp0: interrupting at dec 6600 irq 29
tlp0: DEC, Ethernet address 08:00:2b:86:cf:45
tlp0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
tlp1 at pci0 dev 11 function 0: DECchip 21143 Ethernet, pass 4.1
tlp1: interrupting at dec 6600 irq 30
tlp1: DEC, Ethernet address 08:00:2b:86:cf:46
tlp1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
aceride0 at pci0 dev 13 function 0
aceride0: Acer Labs M5229 UDMA IDE Controller (rev. 0xc1)
aceride0: bus-master DMA support present
aceride0: primary channel wired to compatibility mode
aceride0: primary channel interrupting at isa irq 14
atabus0 at aceride0 channel 0
aceride0: secondary channel wired to compatibility mode
aceride0: secondary channel interrupting at isa irq 15
atabus1 at aceride0 channel 1
mlx0 at pci0 dev 15 function 0: Mylex RAID (v2 interface)
mlx0: interrupting at dec 6600 irq 39
mlx0: DAC960P/PD, 1 channel, firmware 2.49-0-00, 4MB RAM
vga0 at pci0 dev 17 function 0: vendor 0x5333 product 0x8811 (rev. 0x54)
wsdisplay0 at vga0 (kbdmux ignored)
isa0 at sio0
lpt0 at isa0 port 0x3bc-0x3bf irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com0: console
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
mcclock0 at isa0 port 0x70-0x71: mc146818 or compatible
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
md0: internal 4650 KB image area
stray isa irq 14
stray isa irq 14
stray isa irq 14
atapibus0 at atabus0: 2 targets
cd0 at atapibus0 drive 0: <COMPAQ  CDR-8435, , 0013> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2
cd0(aceride0:0:0): using PIO mode 4, DMA mode 2 (using DMA)
WARNING: can't figure what device matches "IDE 0 13 0 0 0 0 0"
root on md0a dumps on md0b
root file system type: ffs
WARNING: clock gained 319 days -- CHECK AND RESET THE DATE!
Terminal type? [vt100]

(I can proceed here)
>How-To-Repeat:
Boot 4.99.64 on alpha (AS DS10).
>Fix: