bisected regression since 3.5-rc5 - hang on boot on some sparc64machines

From: Meelis Roos
Date: Tue Jul 10 2012 - 07:09:24 EST

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A regression since 3.5-rc5 stops Sun Fire V100 and Sun Netra X1 sparc64
machines from booting, hanging after enabling serial console. Several
different other sparc64 systems work fine with 3.5-rc6. prtconf and full
dmesg below.

Bisecting leads to
107a84e61cdd3406c842a0e4be7efffd3a05dba6 is the first bad commit
commit 107a84e61cdd3406c842a0e4be7efffd3a05dba6
Author: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
Date: Thu Jun 14 09:12:35 2012 +0200

of: match by compatible property first

When matching devices against an OF device ID table, the first string of
the compatible property that is listed in the table should match,
regardless of its position in the table.

Cc: Grant Likely <grant.likely@xxxxxxxxxxxx>
Cc: Rob Herring <rob.herring@xxxxxxxxxxx>
Cc: devicetree-discuss@xxxxxxxxxxxxxxxx
Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>

:040000 040000 4982c947d5a864d1bd85aea50b962ab021af9985 f33e14c35917da29bd03b7d2fa135e9245ae435d M drivers

--------------------------------------------------------------------------
System Configuration: Sun Microsystems sun4u
Memory size: 1024 Megabytes
System Peripherals (PROM Nodes):

Node 0xf002a63c
.node: f002a63c
idprom: 01830003.ba0c06cd.000003ba.0c06cd82.00000000.00000000.00000000.00000000
scsi-initiator-id: 00000007
reset-reason: 'B-POR'
breakpoint-trap: 0000007f
#size-cells: 00000002
model: 'SUNW,375-3015'
name: 'SUNW,UltraAX-i2'
clock-frequency: 05f5e100
banner-name: 'Sun Netra X1 (UltraSPARC-IIe 500MHz)'
compatible: 'sun4u'
device_type: 'upa'
stick-frequency: 0054c563

Node 0xf002d8cc
.node: f002d8cc
name: 'packages'

Node 0xf0035e10
.node: f0035e10
iso6429-1983-colors:
name: 'terminal-emulator'

Node 0xf0038e4c
.node: f0038e4c
disk-write-fix:
name: 'deblocker'

Node 0xf0039594
.node: f0039594
name: 'obp-tftp'

Node 0xf0044a48
.node: f0044a48
name: 'disk-label'

Node 0xf0059b14
.node: f0059b14
name: 'SUNW,builtin-drivers'

Node 0xf0061ff8
.node: f0061ff8
source: '/pci@1f,0/isa@7/flashprom@1f,0:'
name: 'dropins'

Node 0xf0072a30
.node: f0072a30
name: 'kbd-translator'

Node 0xf002d93c
.node: f002d93c
mmu: fffe7ae0
memory: fffe7ce0
bootargs: 00
bootpath: '/pci@1f,0/ide@d/disk@0,0:a'
stdout: fffbd7b8
stdin: fffbda00
stdout-#lines: ffffffff
name: 'chosen'

Node 0xf002d9a8
.node: f002d9a8
version: 'OBP 4.0.9 2001/05/17 21:52'
model: 'SUNW,4.0'
aligned-allocator:
relative-addressing:
name: 'openprom'

Node 0xf002da38
.node: f002da38
name: 'client-services'

Node 0xf002dae0
.node: f002dae0
ras-shutdown-enabled?: 'false'
shutdown-temp: '75'
warning-temp: '70'
env-monitor: 'enabled'
diag-passes: '1'
diag-continue?: '0'
diag-targets: '0'
diag-verbosity: '0'
keyboard-click?: 'false'
keymap:
scsi-initiator-id: '7'
#power-cycles: '91'
system-board-serial#:
system-board-date:
ttyb-rts-dtr-off: 'false'
ttyb-ignore-cd: 'true'
ttya-rts-dtr-off: 'false'
ttya-ignore-cd: 'true'
ttyb-mode: '9600,8,n,1,-'
ttya-mode: '9600,8,n,1,-'
pci-probe-list: '7,3,c,5,a,d'
mfg-mode: 'off'
diag-level: 'max'
fcode-debug?: 'false'
output-device: 'ttya'
input-device: 'ttya'
load-base: '16384'
auto-boot-retry?: 'false'
boot-command: 'boot'
auto-boot?: 'true'
watchdog-reboot?: 'false'
diag-file:
diag-device: 'disk'
boot-file:
boot-device: 'disk'
local-mac-address?: 'true'
net-timeout: '0'
ansi-terminal?: 'true'
screen-#columns: '80'
screen-#rows: '34'
silent-mode?: 'false'
use-nvramrc?: 'false'
nvramrc:
security-mode: 'none'
security-password:
security-#badlogins: '0'
oem-logo:
oem-logo?: 'false'
oem-banner:
oem-banner?: 'false'
hardware-revision:
last-hardware-update:
diag-switch?: 'false'
name: 'options'

Node 0xf002db50
.node: f002db50
rtc: '/pci@1f,0/isa@7/rtc@0,70'
usb: '/pci@1f,0/usb@a'
flash: '/pci@1f,0/isa@7/flashprom@1f,0'
lom: '/pci@1f,0/isa@7/SUNW,lomh@0,8010'
i2c-nvram: '/pci@1f,0/pmu@3/i2c@0,0/i2c-nvram@0,aa'
net1: '/pci@1f,0/ethernet@5'
dload1: '/pci@1f,0/ethernet@5:,'
dload: '/pci@1f,0/ethernet@c:,'
net0: '/pci@1f,0/ethernet@c'
net: '/pci@1f,0/ethernet@c'
cdrom: '/pci@1f,0/ide@d/cdrom@2,0:f'
disk: '/pci@1f,0/ide@d/disk@0,0'
disk3: '/pci@1f,0/ide@d/disk@3,0'
disk2: '/pci@1f,0/ide@d/disk@2,0'
disk1: '/pci@1f,0/ide@d/disk@1,0'
disk0: '/pci@1f,0/ide@d/disk@0,0'
ide: '/pci@1f,0/ide@d'
floppy: '/pci@1f,0/isa@7/dma/floppy'
ttyb: '/pci@1f,0/isa@7/serial@0,2e8'
ttya: '/pci@1f,0/isa@7/serial@0,3f8'
name: 'aliases'

Node 0xf004fd44
.node: f004fd44
reg: 00000000.00000000.00000000.10000000.00000000.20000000.00000000.10000000.00000000.40000000.00000000.10000000.00000000.60000000.00000000.10000000
available: 00000000.6fec0000.00000000.00008000.00000000.6fe80000.00000000.00030000.00000000.6f000000.00000000.00e00000.00000000.60000000.00000000.0effe000.00000000.40000000.00000000.10000000.00000000.20000000.00000000.10000000.00000000.00000000.00000000.10000000
name: 'memory'

Node 0xf0050328
.node: f0050328
translations: 00000000.fffe0000.00000000.00010000.80000000.6fef00b6.00000000.fffdc000.00000000.00004000.80000000.6fee40b6.00000000.fffd4000.00000000.00004000.80000000.6fede0b6.00000000.fffd2000.00000000.00002000.800001fe.0200808e.00000000.fffd0000.00000000.00002000.80000000.6fed60b6.00000000.fffce000.00000000.00002000.800001fe.0200008e.00000000.fffcc000.00000000.00002000.800001fe.0200208e.00000000.fffca000.00000000.00002000.800001fe.0200408e.00000000.fffc8000.00000000.00002000.80000000.6effe0b6.00000000.fffc6000.00000000.00002000.80000000.6fed20b6.00000000.fffc4000.00000000.00002000.80000000.6fedc0b6.00000000.fffc2000.00000000.00002000.800001fe.0200008e.00000000.fffbc000.00000000.00004000.80000000.6fec80b6.00000000.fff82000.00000000.00010000.800001fe.0000008e.00000000.fff7e000.00000000.00004000.80000000.6fed80b6.00000000.f0000000.00000000.00100000.80000000.6ff000b6.00000000.40000000.00000000.04000000.80000000.60000036.00000000.00400000.00000000.00800000.80000000.6000
0036.00000000.00002000.00000000.003fe000.80000000.00002036
existing: 00000000.00000000.00000800.00000000.fffff800.00000000.00000800.00000000
available: fffff800.00000000.000007fc.00000000.00000001.00000000.000007ff.00000000.00000000.ffff0000.00000000.0000e000.00000000.00000000.00000000.f0000000.00000000.fffc0000.00000000.00002000.00000000.fff92000.00000000.0002a000.00000000.fff00000.00000000.0007e000.00000000.f0f80000.00000000.0e080000.00000000.f0800000.00000000.00700000
page-size: 00002000
name: 'virtual-memory'

Node 0xf0069698
.node: f0069698
available: 81000000.00000000.00010230.00000000.00bffdd0.82000000.00000000.00004000.00000000.0003c000.82000000.00000000.000c0000.00000000.00f40000.82000000.00000000.02000000.00000000.5e000000.82000000.00000000.80000000.00000000.40000000.82000000.00000000.e0000000.00000000.10000000
bus-range: 00000000.00000000
interrupt-map: 00006800.00000000.00000000.00000001.f0069698.0000000c.00005000.00000000.00000000.00000001.f0069698.00000024.00006000.00000000.00000000.00000001.f0069698.00000006.00002800.00000000.00000000.00000001.f0069698.0000001c.00003800.00000000.00000000.00000004.f0069698.0000002b.00003800.00000000.00000000.00000005.f0069698.00000023.00003800.00000000.00000000.00000001.f0069698.0000002a.00001800.00000000.00000000.00000001.f0069698.00000022
interrupt-map-mask: 00fff800.00000000.00000000.00000007
#interrupt-cells: 00000001
virtual-dma: 60000000.20000000
reg: 000001fe.00000000.00000000.00010000.000001fe.01000000.00000000.00000100
ranges: 00000000.00000000.00000000.000001fe.01000000.00000000.01000000.01000000.00000000.00000000.000001fe.02000000.00000000.01000000.02000000.00000000.00000000.000001ff.00000000.00000001.00000000.03000000.00000000.00000000.000001ff.00000000.00000001.00000000
#virtual-dma-size-cells: 00000001
#virtual-dma-addr-cells: 00000001
clock-frequency: 03ef1480
latency-timer:
button-interrupt:
no-streaming-cache:
66mhz-capable:
interrupts: 00000030.0000002e.0000002f.00000025
upa-portid: 0000001f
bus-parity-generated:
compatible: 'pci108e,a001'
model: 'SUNW,sabre'
name: 'pci'
device_type: 'pci'
#address-cells: 00000003
#size-cells: 00000002

Node 0xf007377c
.node: f007377c
cache-line-size: 00000000
latency-timer: 00000000
#size-cells: 00000001
#address-cells: 00000002
name: 'isa'
ranges: 00000000.00000000.81003810.00000000.00000000.00010000.0000001f.00000000.82003814.00000000.f0000000.00080000
reg: 00003800.00000000.00000000.00000000.00000000.81003810.00000000.00000000.00000000.00010000.82003814.00000000.00000000.00000000.00100000
devsel-speed: 00000001
class-code: 00060100
max-latency: 00000000
min-grant: 00000000
subsystem-id: 00001533
subsystem-vendor-id: 000010b9
revision-id: 00000000
device-id: 00001533
vendor-id: 000010b9

Node 0xf0074344
.node: f0074344
reg: 00000000.00000000.00010000
interrupts: 00000001
compatible: 'isadma'
name: 'dma'

Node 0xf007461c
.node: f007461c
address: fffce070
reg: 00000000.00000070.00000002
compatible: 'm5819'
model: 'm5819'
name: 'rtc'

Node 0xf009c318
.node: f009c318
device_type: 'tod'
name: 'todm5819'

Node 0xf0075134
.node: f0075134
compatible: 'acpi-power'
button:
interrupts: 00000005
reg: 00000000.00002000.00000008
name: 'power'

Node 0xf00752c8
.node: f00752c8
reg: 00000000.00008010.00000002
interrupts: 00000001
device_type: 'block'
name: 'SUNW,lomh'

Node 0xf0076704
.node: f0076704
port-a-ignore-cd:
nohupcl: 00
interrupt-priorities: 0000000c.0000000c
reg: 00000000.000003f8.00000008
compatible: 73753136.35353000.737500
device_type: 'serial'
name: 'serial'
interrupts: 00000004

Node 0xf00783f0
.node: f00783f0
port-b-ignore-cd:
nohupcl: 00
interrupt-priorities: 0000000c.0000000c
reg: 00000000.000002e8.00000008
compatible: 73753136.35353000.737500
device_type: 'serial'
name: 'serial'
interrupts: 00000004

Node 0xf007a508
.node: f007a508
model: 'SUNW,258-7883'
version: 'CORE 1.0.2 2001/04/23 18:18'
name: 'flashprom'
reg: 0000001f.00000000.00080000

Node 0xf007afb0
.node: f007afb0
name: 'pmu'
ranges: 00000000.00000000.00001800.00000000.00000000.00000100.00000001.00000000.81001810.00000000.00004000.00000100.00000002.00000000.81001814.00000000.00000000.00000100
reg: 00001800.00000000.00000000.00000000.00000000.81001810.00000000.00004000.00000000.00000010
compatible: 70636931.3062392c.37313031.00706369.636c6173.732c3030.30303030.00
#address-cells: 00000002
#size-cells: 00000001
devsel-speed: 00000001
class-code: 00000000
max-latency: 00000000
min-grant: 00000000
revision-id: 00000000
device-id: 00007101
vendor-id: 000010b9

Node 0xf007b778
.node: f007b778
reg: 00000000.00000000.00000100.00000001.00000000.00000100
#address-cells: 00000002
#size-cells: 00000000
interrupts: 00000001
compatible: 'i2c-smbus'
name: 'i2c'

Node 0xf007cc10
.node: f007cc10
compatible: 'i2c-max1617'
name: 'temperature'
reg: 00000000.00000030

Node 0xf007cd80
.node: f007cd80
compatible: 'i2c-at34c02'
name: 'dimm'
reg: 00000000.000000a8

Node 0xf007ce38
.node: f007ce38
compatible: 'i2c-at34c02'
name: 'dimm'
reg: 00000000.000000aa

Node 0xf007cef0
.node: f007cef0
compatible: 'i2c-at34c02'
name: 'dimm'
reg: 00000000.000000ac

Node 0xf007cfa8
.node: f007cfa8
compatible: 'i2c-at34c02'
name: 'dimm'
reg: 00000000.000000ae

Node 0xf007d060
.node: f007d060
reg: 00000000.000000a0
#address-cells: 00000001
compatible: 'i2c-at24c64'
device_type: 'nvram'
name: 'i2c-nvram'

Node 0xf007db78
.node: f007db78
reg: 00001fd8.00000028
device_type: 'idprom'
name: 'idprom'

Node 0xf007de2c
.node: f007de2c
reg: 00000000.000000a2
#address-cells: 00000001
compatible: 'i2c-at24c64'
name: 'motherboard-fru'

Node 0xf007e9c4
.node: f007e9c4
compatible: 'SUNW,smbus-ppm'
name: 'ppm'
register-mask: 00000000.00000001
reg: 00000000.000000b3.00000001.80000000.000000ba.00000001.00000000.000000bb.00000001

Node 0xf007ec38
.node: f007ec38
compatible: 'SUNW,smbus-beep'
name: 'beep'
reg: 00000000.000000b2.00000001.00000000.000000d3.00000001.00000002.00000042.00000002.00000002.00000061.00000001

Node 0xf007ed50
.node: f007ed50
compatible: 'SUNW,smbus-fan-control'
name: 'fan-control'
register-mask: 00000000.00000002
reg: 00000000.000000c8.00000004.80000000.000000ba.00000001

Node 0xf007ef54
.node: f007ef54
name: 'lomp'
reg: 00001800.00000000.00000000.00000000.00000000.81001810.00004000.00000000.00000000.00000010

Node 0xf007f3ac
.node: f007f3ac
local-mac-address: 0003ba0c.06cd
assigned-addresses: 81006010.00000000.00010000.00000000.00000100.82006014.00000000.00000000.00000000.00002000.82006030.00000000.00040000.00000000.00040000
version: '1.0'
compatible: 70636934.3535342c.34333465.00706369.31323868.2c393130.32007063.69313238.322c3931.30320070.6369636c.6173732c.30323030.303000
device_type: 'network'
subsystem-id: 0000434e
subsystem-vendor-id: 00004554
reg: 00006000.00000000.00000000.00000000.00000000.01006010.00000000.00000000.00000000.00000100.02006014.00000000.00000000.00000000.00000100
name: 'ethernet'
devsel-speed: 00000001
class-code: 00020000
interrupts: 00000001
max-latency: 00000028
min-grant: 00000014
revision-id: 00000031
device-id: 00009102
vendor-id: 00001282

Node 0xf0088ef8
.node: f0088ef8
local-mac-address: 0003ba0c.06ce
assigned-addresses: 81002810.00000000.00010100.00000000.00000100.82002814.00000000.00002000.00000000.00002000.82002830.00000000.00080000.00000000.00040000
version: '1.0'
compatible: 70636934.3535342c.34333465.00706369.31323868.2c393130.32007063.69313238.322c3931.30320070.6369636c.6173732c.30323030.303000
device_type: 'network'
subsystem-id: 0000434e
subsystem-vendor-id: 00004554
reg: 00002800.00000000.00000000.00000000.00000000.01002810.00000000.00000000.00000000.00000100.02002814.00000000.00000000.00000000.00000100
name: 'ethernet'
devsel-speed: 00000001
class-code: 00020000
interrupts: 00000001
max-latency: 00000028
min-grant: 00000014
revision-id: 00000031
device-id: 00009102
vendor-id: 00001282

Node 0xf0092a44
.node: f0092a44
assigned-addresses: 82005010.00000000.01000000.00000000.01000000
sunw,find-fcode: f0097c08
maximum-frame#: 0000ffff
reg: 00005000.00000000.00000000.00000000.00000000.02005010.00000000.00000000.00000000.01000000
#size-cells: 00000000
#address-cells: 00000001
compatible: 70636931.3062392c.35323337.2e330070.63693130.62392c35.32333700.70636963.6c617373.2c306330.33313000.70636963.6c617373.2c306330.3300
name: 'usb'
fast-back-to-back:
devsel-speed: 00000001
class-code: 000c0310
interrupts: 00000001
max-latency: 00000050
min-grant: 00000000
revision-id: 00000003
device-id: 00005237
vendor-id: 000010b9

Node 0xf009884c
.node: f009884c
assigned-addresses: 81006810.00000000.00010200.00000000.00000008.81006814.00000000.00010218.00000000.00000008.81006818.00000000.00010210.00000000.00000008.8100681c.00000000.00010208.00000000.00000008.81006820.00000000.00010220.00000000.00000010
reg: 00006800.00000000.00000000.00000000.00000000.01006810.00000000.00000000.00000000.00000008.01006814.00000000.00000000.00000000.00000004.01006818.00000000.00000000.00000000.00000008.0100681c.00000000.00000000.00000000.00000004.01006820.00000000.00000000.00000000.00000010
compatible: 70636931.3062392c.35323239.00706369.636c6173.732c3031.30316666.00
#address-cells: 00000002
device_type: 'ide'
name: 'ide'
fast-back-to-back:
devsel-speed: 00000001
class-code: 000101ff
interrupts: 00000001
max-latency: 00000004
min-grant: 00000002
revision-id: 000000c3
device-id: 00005229
vendor-id: 000010b9

Node 0xf009b0c0
.node: f009b0c0
device_type: 'block'
name: 'disk'
compatible: 'ide-disk'

Node 0xf009b76c
.node: f009b76c
device_type: 'block'
name: 'cdrom'
compatible: 'ide-cdrom'

Node 0xf00726a0
.node: f00726a0
manufacturer#: 00000017
implementation#: 00000013
mask#: 00000014
ecache-size: 00040000
clock-frequency: 1dcd6500
name: 'SUNW,UltraSPARC-IIe'
sparc-version: 00000009
ecache-associativity: 00000001
ecache-line-size: 00000040
#dtlb-entries: 00000040
dcache-associativity: 00000001
dcache-line-size: 00000020
dcache-size: 00004000
#itlb-entries: 00000040
icache-associativity: 00000002
icache-line-size: 00000020
icache-size: 00004000
upa-portid: 00000000
reg: 000001c0.00000000.00000000.00000008
device_type: 'cpu'

[ 0.000000] PROMLIB: Sun IEEE Boot Prom 'OBP 4.0.9 2001/05/17 21:52'
[ 0.000000] PROMLIB: Root node compatible: sun4u
[ 0.000000] Linux version 3.5.0-rc5-00124-g5eecb9c (mroos@deegu) (gcc version 4.6.3 (Debian 4.6.3-7) ) #51 Mon Jul 9 16:09:59 EEST 2012
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] bootconsole [earlyprom0] enabled
[ 0.000000] ARCH: SUN4U
[ 0.000000] Ethernet address: 00:03:ba:0c:06:cd
[ 0.000000] Kernel: Using 2 locked TLB entries for main kernel image.
[ 0.000000] Remapping the kernel... done.
[ 0.000000] OF stdout device is: /pci@1f,0/isa@7/serial@0,3f8
[ 0.000000] PROM: Built device tree with 46439 bytes of memory.
[ 0.000000] Top of RAM: 0x6fec8000, Total RAM: 0x3fe36000
[ 0.000000] Memory hole size: 768MB
[ 0.000000] [0000010000000000-fffff8006f800000] page_structs=131072 node=0 entry=0/8192
[ 0.000000] [0000010000000000-fffff8006f400000] page_structs=131072 node=0 entry=1/8192
[ 0.000000] [0000010000800000-fffff8006f000000] page_structs=131072 node=0 entry=2/8192
[ 0.000000] [0000010000800000-fffff8006e800000] page_structs=131072 node=0 entry=3/8192
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00000000-0x6fec7fff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00000000-0x0fffffff]
[ 0.000000] node 0: [mem 0x20000000-0x2fffffff]
[ 0.000000] node 0: [mem 0x40000000-0x4fffffff]
[ 0.000000] node 0: [mem 0x60000000-0x6effdfff]
[ 0.000000] node 0: [mem 0x6f000000-0x6fdfffff]
[ 0.000000] node 0: [mem 0x6fe80000-0x6feaffff]
[ 0.000000] node 0: [mem 0x6fec0000-0x6fec7fff]
[ 0.000000] On node 0 totalpages: 130843
[ 0.000000] Normal zone: 1791 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 129052 pages, LIFO batch:15
[ 0.000000] Booting Linux...
[ 0.000000] CPU CAPS: [flush,stbar,swap,muldiv,v9,mul32,div32,v8plus]
[ 0.000000] CPU CAPS: [vis]
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129052
[ 0.000000] Kernel command line: root=/dev/sda2 ro debug ignore_loglevel
[ 0.000000] PID hash table entries: 4096 (order: 2, 32768 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 1048576 bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 524288 bytes)
[ 0.000000] Memory: 1023472k available (3128k kernel code, 1432k data, 144k init) [fffff80000000000,000000006fec8000]
[ 0.000000] SLUB: Genslabs=16, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:255
[ 0.000000] clocksource: mult[b400012e] shift[24]
[ 0.000000] clockevent: mult[16c16bf] shift[32]
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled, bootconsole disabled

--
Meelis Roos (mroos@xxxxxxxx)
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