Bug 16497 - Address space collision: host bridge window conflicts with Video ROM
Address space collision: host bridge window conflicts with Video ROM
Status: CLOSED CODE_FIX
Product: Drivers
Classification: Unclassified
Component: Other
All Linux
: P1 high
Assigned To: Bjorn Helgaas
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2010-08-03 05:38 UTC by MM
Modified: 2012-06-13 14:57 UTC (History)
7 users (show)

See Also:
Kernel Version: 2.6.35
Tree: Mainline
Regression: No


Attachments
cat /proc/cpuinfo (2.56 KB, text/plain)
2010-11-18 13:56 UTC, Nao Nakashima
Details
cat /proc/version (137 bytes, text/plain)
2010-11-18 13:59 UTC, Nao Nakashima
Details
cat /proc/modules (2.83 KB, text/plain)
2010-11-18 13:59 UTC, Nao Nakashima
Details
cat /proc/ioports (1.29 KB, text/plain)
2010-11-18 14:00 UTC, Nao Nakashima
Details
cat /proc/iomem (1.96 KB, text/plain)
2010-11-18 14:00 UTC, Nao Nakashima
Details
lspci -vvv (14.03 KB, text/plain)
2010-11-18 14:01 UTC, Nao Nakashima
Details
cat /proc/scsi/scsi (336 bytes, text/plain)
2010-11-18 14:02 UTC, Nao Nakashima
Details
git bisect log (linux-staging-next-2.6) (3.24 KB, text/plain)
2010-11-18 14:13 UTC, Nao Nakashima
Details

Description MM 2010-08-03 05:38:25 UTC
1. /var/log/dmesg reports:

pci_root PNP0A08:00: address space collision: host bridge window [mem 0x000cc000-0x000cffff] conflicts with Video ROM [mem 0x000c0000-0x000ce9ff]

2. System - Slackware 13.1 x86

3. cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 124
model name      : AMD Athlon(tm) Processor TF-20
stepping        : 2
cpu MHz         : 800.000
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow up extd_apicid pni cx16 lahf_lm svm extapic cr8_legacy 3dnowprefetch lbrv
bogomips        : 1595.72
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp tm stc 100mhzsteps

4. /proc/version

Linux version 2.6.35-smp (root@slackware) (gcc version 4.4.4 (GCC) ) #1 SMP PREEMPT Mon Aug 2 17:54:11 HST 2010

5. cat /proc/modules

ipv6 222220 10 - Live 0xf91a1000
snd_seq_dummy 1119 0 - Live 0xf914d000
snd_seq_oss 25706 0 - Live 0xf913b000
snd_seq_midi_event 4664 1 snd_seq_oss, Live 0xf9128000
snd_seq 42999 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event, Live 0xf9110000
snd_seq_device 4523 3 snd_seq_dummy,snd_seq_oss,snd_seq, Live 0xf90f7000
snd_pcm_oss 31885 0 - Live 0xf90e4000
snd_mixer_oss 13457 1 snd_pcm_oss, Live 0xf90ce000
cpufreq_ondemand 7378 1 - Live 0xf90be000
powernow_k8 11922 0 - Live 0xf90b0000
freq_table 2039 2 cpufreq_ondemand,powernow_k8, Live 0xf9097000
mperf 923 1 powernow_k8, Live 0xf908d000
fuse 55342 3 - Live 0xf9076000
snd_hda_codec_realtek 189992 1 - Live 0xf8f7e000
snd_hda_intel 17692 0 - Live 0xf8f20000
ecb 1629 2 - Live 0xf8efd000
ath9k 70339 0 - Live 0xf8edf000
snd_hda_codec 58524 2 snd_hda_codec_realtek,snd_hda_intel, Live 0xf8eae000
ath9k_common 4298 1 ath9k, Live 0xf8e59000
ath9k_hw 272581 2 ath9k,ath9k_common, Live 0xf8e06000
usbhid 24402 0 - Live 0xf8d96000
hid 61343 1 usbhid, Live 0xf8d74000
ath 6768 2 ath9k,ath9k_hw, Live 0xf8d25000
snd_hwdep 5200 1 snd_hda_codec, Live 0xf8d19000
mac80211 147139 2 ath9k,ath9k_common, Live 0xf8ce4000
rtc_cmos 8062 0 - Live 0xf8caa000
snd_pcm 53102 3 snd_pcm_oss,snd_hda_intel,snd_hda_codec, Live 0xf8c8e000
thermal 10430 0 - Live 0xf8c6f000
rtc_core 12446 1 rtc_cmos, Live 0xf8c5d000
snd_timer 15939 2 snd_seq,snd_pcm, Live 0xf8c4b000
cfg80211 123101 4 ath9k,ath9k_common,ath,mac80211, Live 0xf874b000
ohci_hcd 19937 0 - Live 0xf8bd9000
processor 25390 1 powernow_k8, Live 0xf8bc1000
rtc_lib 1566 1 rtc_core, Live 0xf83e6000
ehci_hcd 32509 0 - Live 0xf8120000
battery 8372 0 - Live 0xf83b0000
ac 2467 0 - Live 0xf83a7000
led_class 1915 1 ath9k, Live 0xf80d5000
atl1c 28319 0 - Live 0xf8378000
thermal_sys 12032 2 thermal,processor, Live 0xf833c000
button 4010 0 - Live 0xf8110000
snd 43178 11 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer, Live 0xf80ef000
sg 21185 0 - Live 0xf80c5000
sr_mod 12375 0 - Live 0xf809c000
k8temp 2703 0 - Live 0xf808f000
evdev 7099 10 - Live 0xf8084000
serio_raw 3766 0 - Live 0xf8078000
hwmon 1129 2 thermal_sys,k8temp, Live 0xf806d000
cdrom 31256 1 sr_mod, Live 0xf805b000
soundcore 5181 1 snd, Live 0xf8047000
snd_page_alloc 6053 2 snd_hda_intel,snd_pcm, Live 0xf8021000

6. /proc/ioports

0000-0cf7 : PCI Bus 0000:00
  0000-001f : dma1
  0020-0021 : pic1
  0040-0043 : timer0
  0050-0053 : timer1
  0060-0060 : keyboard
  0064-0064 : keyboard
  0070-0071 : rtc0
  0080-008f : dma page reg
  00a0-00a1 : pic2
  00c0-00df : dma2
  00f0-00ff : fpu
  03c0-03df : vga+
  0400-04cf : pnp 00:08
    0400-0403 : ACPI PM1a_EVT_BLK
    0404-0405 : ACPI PM1a_CNT_BLK
    0408-040b : ACPI PM_TMR
    0410-0415 : ACPI CPU throttle
    0420-0427 : ACPI GPE0_BLK
  04d0-04d1 : pnp 00:08
  04d6-04d6 : pnp 00:08
  0680-06ff : pnp 00:08
  077a-077a : pnp 00:08
  0900-0900 : ACPI PM2_CNT_BLK
  0c00-0c01 : pnp 00:08
  0c14-0c14 : pnp 00:08
  0c50-0c52 : pnp 00:08
  0c6c-0c6c : pnp 00:08
  0c6f-0c6f : pnp 00:08
  0cd0-0cdb : pnp 00:08
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
  1000-1fff : PCI Bus 0000:09
  2000-2fff : PCI Bus 0000:08
    2000-207f : 0000:08:00.0
      2000-207f : atl1c
 3000-6fff : PCI Bus 0000:02
  7000-7fff : PCI Bus 0000:01
    7000-70ff : 0000:01:05.0
  8010-801f : 0000:00:11.0
    8010-801f : ahci
  8030-8037 : 0000:00:11.0
    8030-8037 : ahci
  8038-803f : 0000:00:11.0
    8038-803f : ahci
  8048-804b : 0000:00:11.0
    8048-804b : ahci
  804c-804f : 0000:00:11.0
    804c-804f : ahci
  fd60-fd63 : pnp 00:08

7. /proc/iomem

00000000-00000fff : reserved
00001000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
  000a0000-000bffff : Video RAM area
000c0000-000ce9ff : Video ROM
  000c0000-000c3fff : PCI Bus 0000:00
  000c4000-000c7fff : PCI Bus 0000:00
  000c8000-000cbfff : PCI Bus 0000:00
000cf000-000cffff : Adapter ROM
000d0000-000d3fff : PCI Bus 0000:00
000d4000-000d7fff : PCI Bus 0000:00
000d8000-000dbfff : PCI Bus 0000:00
000dc000-000dffff : PCI Bus 0000:00
000e0000-000fffff : reserved
  000e0000-000e3fff : PCI Bus 0000:00
  000e4000-000e7fff : PCI Bus 0000:00
  000e8000-000ebfff : PCI Bus 0000:00
  000ec000-000effff : PCI Bus 0000:00
  000f0000-000fffff : System ROM
00100000-de60bfff : System RAM
  01000000-013c1664 : Kernel code
  013c1665-015416c7 : Kernel data
  015b1000-01605a23 : Kernel bss
de60c000-de80bfff : ACPI Non-volatile Storage
de80c000-dfd6ffff : System RAM
dfd70000-dfdbefff : reserved
dfdbf000-dfe91fff : System RAM
dfe92000-dfebefff : ACPI Non-volatile Storage
dfebf000-dfee1fff : System RAM
dfee2000-dfef6fff : ACPI Tables
dfef7000-dfefffff : System RAM
dff00000-dfffffff : RAM buffer
e0000000-f6ffffff : PCI Bus 0000:00
  e0000000-efffffff : PCI Bus 0000:01
 e0000000-efffffff : 0000:01:05.0
  f0000000-f0ffffff : PCI Bus 0000:02
  f1000000-f10fffff : PCI Bus 0000:08
    f1000000-f103ffff : 0000:08:00.0
      f1000000-f103ffff : atl1c
  f1100000-f20fffff : PCI Bus 0000:02
    f1100000-f110ffff : 0000:02:00.0
      f1100000-f110ffff : ath9k
  f2100000-f22fffff : PCI Bus 0000:01
    f2100000-f21fffff : 0000:01:05.0
    f2200000-f220ffff : 0000:01:05.0
  f2300000-f2303fff : 0000:00:14.2
    f2300000-f2303fff : ICH HD audio
  f2304000-f2304fff : 0000:00:12.1
    f2304000-f2304fff : ohci_hcd
  f2305000-f2305fff : 0000:00:12.0
    f2305000-f2305fff : ohci_hcd
  f2306000-f23063ff : 0000:00:11.0
    f2306000-f23063ff : ahci
  f2306400-f23064ff : 0000:00:12.2
    f2306400-f23064ff : ehci_hcd
f7000000-f7ffffff : PCI MMCONFIG 0000 [bus 00-0f]
  f7000000-f7ffffff : reserved
    f7000000-f7ffffff : pnp 00:01
f8000000-ffffffff : PCI Bus 0000:00
  feb00000-feb00fff : reserved
  fec00000-fec00fff : reserved
    fec00000-fec003ff : IOAPIC 0
  fed00000-fed003ff : HPET 0
  fee00000-fee00fff : Local APIC
    fee00000-fee00fff : reserved
      fee00000-fee00fff : pnp 00:01
  fff00000-ffffffff : reserved
    fff00000-ffffffff : pnp 00:09

8. lspci -vvv

00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: [c4] HyperTransport: Slave or Primary Interface
		Command: BaseUnitID=1 UnitCnt=12 MastHost- DefDir- DUL-
		Link Control 0: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 IsocEn- LSEn+ ExtCTL- 64b-
		Link Config 0: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn-
		Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b-
		Link Config 1: MLWI=8bit DwFcIn- MLWO=8bit DwFcOut- LWI=8bit DwFcInEn- LWO=8bit DwFcOutEn-
		Revision ID: 3.00
		Link Frequency 0: 800MHz
		Link Error 0: <Prot- <Ovfl- <EOC- CTLTm-
		Link Frequency Capability 0: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+ 800MHz+ 1.0GHz+ 1.2GHz- 1.4GHz- 1.6GHz- Vend-
		Feature Capability: IsocFC- LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD-
		Link Frequency 1: 200MHz
		Link Error 1: <Prot- <Ovfl- <EOC- CTLTm-
		Link Frequency Capability 1: 200MHz- 300MHz- 400MHz- 500MHz- 600MHz- 800MHz- 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
		Error Handling: PFlE- OFlE- PFE- OFE- EOCFE- RFE- CRCFE- SERRFE- CF- RE- PNFE- ONFE- EOCNFE- RNFE- CRCNFE- SERRNFE-
		Prefetchable memory behind bridge Upper: 00-00
		Bus Number: 00
	Capabilities: [54] HyperTransport: UnitID Clumping
	Capabilities: [40] HyperTransport: Retry Mode
	Capabilities: [9c] HyperTransport: #1a
	Capabilities: [f8] HyperTransport: #1c

00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (int gfx) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 00007000-00007fff
	Memory behind bridge: f2100000-f22fffff
	Prefetchable memory behind bridge: 00000000e0000000-00000000efffffff
	Secondary status: 66MHz+ FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [44] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [b0] Subsystem: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (int gfx)

00:04.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 0) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=02, subordinate=07, sec-latency=0
	I/O behind bridge: 00003000-00006fff
	Memory behind bridge: f1100000-f20fffff
	Prefetchable memory behind bridge: 00000000f0000000-00000000f0ffffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
			Slot #  4, PowerLimit 25.000000; Interlock- NoCompl+
		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
			Changed: MRL- PresDet+ LinkState+
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000
	Capabilities: [b0] Subsystem: Acer Incorporated [ALI] Device 028d
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100] Vendor Specific Information <?>
	Capabilities: [110] Virtual Channel <?>

00:05.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge (PCIE port 1) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: f1000000-f10fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #2, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		SltCap:	AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
			Slot #  5, PowerLimit 25.000000; Interlock- NoCompl+
		SltCtl:	Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
			Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
		SltSta:	Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
			Changed: MRL- PresDet+ LinkState+
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis- ARIFwd-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000
	Capabilities: [b0] Subsystem: Acer Incorporated [ALI] Device 028d
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100] Vendor Specific Information <?>
	Capabilities: [110] Virtual Channel <?>

00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0])
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 22
	Region 0: I/O ports at 8038 [size=8]
	Region 1: I/O ports at 804c [size=4]
	Region 2: I/O ports at 8030 [size=8]
	Region 3: I/O ports at 8048 [size=4]
	Region 4: I/O ports at 8010 [size=16]
	Region 5: Memory at f2306000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: [50] MSI: Enable- Count=1/8 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [70] SATA HBA <?>
	Kernel driver in use: ahci

00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f2305000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci_hcd
	Kernel modules: ohci-hcd

00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller (prog-if 10 [OHCI])
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f2304000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci_hcd
	Kernel modules: ohci-hcd

00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at f2306400 (32-bit, non-prefetchable) [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [e4] Debug port: BAR=1 offset=00e0
	Kernel driver in use: ehci_hcd
	Kernel modules: ehci-hcd

00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3c)
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort+ <MAbort- >SERR+ <PERR+ INTx-
	Capabilities: [b0] HyperTransport: MSI Mapping Enable- Fixed+

00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64, Cache Line Size: 64 bytes
	Interrupt: pin ? routed to IRQ 16
	Region 0: Memory at f2300000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Kernel driver in use: HDA Intel
	Kernel modules: snd-hda-intel

00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Bus: primary=00, secondary=09, subordinate=09, sec-latency=64
	I/O behind bridge: 00001000-00001fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: fff00000-000fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-

00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Capabilities: [80] HyperTransport: Host or Secondary Interface
		Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave- <EOCErr- DUL-
		Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=8 IsocEn- LSEn+ ExtCTL- 64b+
		Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn-
		Revision ID: 1.02
		Link Frequency: 800MHz
		Link Error: <Prot- <Ovfl- <EOC- CTLTm-
		Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+ 800MHz+ 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
		Feature Capability: IsocFC- LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD- ExtRS- UCnfE-

00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Capabilities: [f0] Secure device <?>
	Kernel driver in use: k8temp
	Kernel modules: k8temp

01:05.0 VGA compatible controller: ATI Technologies Inc RS780M/RS780MN [Radeon HD 3200 Graphics] (prog-if 00 [VGA controller])
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at e0000000 (32-bit, prefetchable) [size=256M]
	Region 1: I/O ports at 7000 [size=256]
	Region 2: Memory at f2200000 (32-bit, non-prefetchable) [size=64K]
	Region 5: Memory at f2100000 (32-bit, non-prefetchable) [size=1M]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Kernel driver in use: radeon

02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
	Subsystem: Foxconn International, Inc. Device e016
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at f1100000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000
	Capabilities: [60] Express (v2) Legacy Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 512 bytes
		DevSta:	CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
			ClockPM- Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis+
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB
	Capabilities: [100] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
	Capabilities: [140] Virtual Channel <?>
	Capabilities: [160] Device Serial Number 00-15-17-ff-ff-24-14-12
	Capabilities: [170] Power Budgeting <?>
	Kernel driver in use: ath9k
	Kernel modules: ath9k

08:00.0 Ethernet controller: Attansic Technology Corp. Atheros AR8132 / L1c Gigabit Ethernet Adapter (rev c0)
	Subsystem: Acer Incorporated [ALI] Device 028d
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 17
	Region 0: Memory at f1000000 (64-bit, non-prefetchable) [size=256K]
	Region 2: I/O ports at 2000 [size=128]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [58] Express (v1) Endpoint, MSI 00
		DevCap:	MaxPayload 4096 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
			ExtTag- AttnBtn+ AttnInd+ PwrInd+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 512 bytes
		DevSta:	CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr+ TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 unlimited, L1 unlimited
			ClockPM+ Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
	Capabilities: [6c] Vital Product Data
		Not readable
	Capabilities: [100] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP- SDES+ TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn-
	Capabilities: [180] Device Serial Number ff-2b-d5-2d-00-26-22-ff
	Kernel driver in use: atl1c
	Kernel modules: atl1c

9. /proc/scsi/scsi

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
  Vendor: ATA      Model: TOSHIBA MK1655GS Rev: FG01
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi2 Channel: 00 Id: 00 Lun: 00
  Vendor: Optiarc  Model: DVD RW AD-7585H  Rev: KX04
  Type:   CD-ROM                           ANSI  SCSI revision: 05
Comment 1 Andrew Morton 2010-08-03 23:51:22 UTC
We don't appear to have a category for PCI.  I cc'ed Jesse.  Might be an acpi issue though.
Comment 2 MM 2010-08-14 00:54:38 UTC
Ok great, so any word back on this from Jesse?

I hope we can get this fixed soon.


THANKS
Comment 3 Nao Nakashima 2010-11-18 13:54:47 UTC
Same bug.
Tested with versions: 2.6.35, 2.6.37-rc2

1.
pci_root PNP0A08:00: host bridge window [mem 0xfed45000-0xffffffff]
...
pci_root PNP0A08:00: address space collision: host bridge window [mem ...] conflicts with video ROM [mem ...]

Then nothing is displayed and num lock blinks (kernel panic?)

2. Ubuntu 10.04, Gentoo
Comment 4 Nao Nakashima 2010-11-18 13:56:07 UTC
Created attachment 37462 [details]
cat /proc/cpuinfo
Comment 5 Nao Nakashima 2010-11-18 13:59:19 UTC
Created attachment 37472 [details]
cat /proc/version
Comment 6 Nao Nakashima 2010-11-18 13:59:48 UTC
Created attachment 37482 [details]
cat /proc/modules
Comment 7 Nao Nakashima 2010-11-18 14:00:16 UTC
Created attachment 37492 [details]
cat /proc/ioports
Comment 8 Nao Nakashima 2010-11-18 14:00:48 UTC
Created attachment 37502 [details]
cat /proc/iomem
Comment 9 Nao Nakashima 2010-11-18 14:01:26 UTC
Created attachment 37512 [details]
lspci -vvv
Comment 10 Nao Nakashima 2010-11-18 14:02:02 UTC
Created attachment 37522 [details]
cat /proc/scsi/scsi
Comment 11 Nao Nakashima 2010-11-18 14:09:31 UTC
Above is for 2.6.32-25 on Ubuntu 10.10 because 2.6.35 doesn`t work.

Also I tried to git bisect this bug on linux-staging-next-2.6 tree some time ago, but fail because same versions was marked good and bad.
I think that this bug can be enabled/disabled in .config
Comment 12 Nao Nakashima 2010-11-18 14:13:44 UTC
Created attachment 37552 [details]
git bisect log (linux-staging-next-2.6)

Notice good/bad commit 494a43bb188c10b9b21375bbfe2691e41e3cb145
This is because different .config used.
Comment 13 MM 2011-01-05 00:33:19 UTC
I'm still getting this bug with 2.6.36.1

PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug

pci_root PNP0A08:00: address space collision: host bridge window [mem 0x000cc000-0x000cffff] conflicts with Video ROM [mem 0x000c0000-0x000ce9ff]
Comment 14 MM 2011-01-05 00:35:02 UTC
I forgot to mention if I use lilo like this I don't see the message;

append="pci=nocrs vt.default_utf8=0"

By my understanding is I shouldn't need to use pci=nocrs?


THANKS
Comment 15 Bjorn Helgaas 2011-06-30 22:35:09 UTC
I apologize for missing this bug report.  I happened to trip over it while researching bug #38522.

Das: Are you seeing a functional problem in addition to the host bridge window conflict warning?  The message itself isn't something that should cause any problems, and I plan to reduce it from KERN_WARN to KERN_INFO, so you won't see it any more.

If there's something that doesn't work, in addition to the message, please attach a complete dmesg log from a recent kernel, 3.0 if possible (with "pci=nocrs" if necessary), and details about what is broken.  If you have to use "pci=nocrs" to boot, that is a bug that I want to fix.

Nao: It sounds like you see the message and, in addition, you have a hang.  If the hang still occurs when you boot with "pci=nocrs", it's likely unrelated.  Can you collect any more information about the hang, e.g., by booting with "ignore_loglevel" and using a serial console or taking a photo of the screen?
Comment 16 MM 2011-06-30 22:59:44 UTC
I don't see any problems other then the log message, that made me wonder and I do use pci=nocrs...


THANKS
Comment 17 MM 2011-06-30 23:06:35 UTC
Actually let me back up here, I do see one problem, if I go from kernel 2.6.36.4 to anything higher, like .37, .38, or .39 with the Radeon KMS I'm using in the kernel, when the Radeon KMS kicks in the first few lines of messages appear in the middle of my screen then after that they appear as they should going down the far left side of the screen.

I'll paste below my kernel config maybe someone can tell me why this configuration works fine in 36.4 but doesn't in newer kernels?

Here's my kernel config for 2.6.36.4

http://pastebin.com/Cxhadb0K


THANKS
Comment 18 Bjorn Helgaas 2011-06-30 23:12:29 UTC
You should stop using "pci=nocrs" if you can.  It won't cause you any problems, but it can cover up bugs that I'd like to fix.

The Radeon KMS problem is completely unrelated, and it would be great if you could open a separate bug report for that.  Maybe even attach a couple photos to make the problem concrete.
Comment 19 MM 2011-07-01 00:02:48 UTC
Ok I'll remove the pci=nocrs, what would you like to see regarding this in dmesg I presume?


THANKS
Comment 20 Bjorn Helgaas 2011-07-01 00:10:48 UTC
Here's the patch I intend to use to fix the alarming error message: https://bugzilla.kernel.org/show_bug.cgi?id=38522#c7

That should be enough to resolve this bug.  I'm going to treat this bug report as merely "message should be KERN_INFO, not KERN_ERR".

If you discover an issue when you remove "pci=nocrs", e.g., you machine stops booting or something, we should open a new bug report for that.

And if Nao can still reproduce the hang, we should open a new bug report for that, too.

*** This bug has been marked as a duplicate of bug 38522 ***
Comment 21 Bjorn Helgaas 2011-07-01 00:13:09 UTC
Das, I don't need a dmesg log or anything unless you see a problem when you remove "pci=nocrs".  If you do see a problem, just open a new defect (or email the dmesg log to me), so we don't clutter this bug report.
Comment 22 MM 2011-07-01 00:52:59 UTC
Well I'd feel better if you looked at the dmesg to make sure, better safe then sorry. :)

http://pastebin.com/D88h1DES


THANKS
Comment 23 Bjorn Helgaas 2011-07-01 14:46:27 UTC
I think you're safe :)  I don't see any devices that are having problems.

The only thing I see is what looks like a minor BIOS bug:

215: bus: [00, 0f] on node 0 link 0
220: PCI: MMCONFIG for domain 0000 [bus 00-0f] at [mem 0xf7000000-0xf7ffffff] (base 0xf7000000)
236: ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])

At 215, amd_bus.c reads chipset config and finds a host bridge leading to PCI buses 00-0f.  At 220, the ACPI MCFG table tells us the MMCONFIG area for buses 00-0f.  But at 236, the ACPI PNP0A08 device tells us the host bridge leads to buses 00-ff.  This probably should be 00-0f, to match the ranges at 215 and 220.

But this isn't a problem for you because the highest device you have is 08:00.0, so you don't need to use any buses above 0f.
Comment 24 MM 2011-07-01 21:16:31 UTC
Ok great thanks...

Also if you know anyone that deals with this bug;

https://bugzilla.kernel.org/show_bug.cgi?id=38592

I'd appreciate you letting them and someone getting on this.

I submitted this at the beginning of the year and I lost it and submitted this over, I've waited now almost 6 months on this with no word...


THANKS
Comment 25 MM 2011-07-01 21:17:53 UTC
TYPO;

I meant I'd appreciate you letting them know...



THANKS
Comment 26 MM 2011-08-01 00:41:40 UTC
Hello,

Let's please not marked this as resolved, the patch in the other bug report does not work and this is now in the 3.0 kernel as well, which I was hoping was going to be fixed in 3.0 and it was not... :(

This is the output below from 3.0;

pci_root PNP0A08:00: address space collision: host bridge window [mem 0x000cc000-0x000cffff] conflicts with Video ROM [mem 0x000c0000-0x000ce9ff]



THANKS
Comment 27 Florian Mickler 2011-08-08 08:16:09 UTC
A patch referencing this bug report has been merged in Linux v3.1-rc1:

commit 43d786ed4df4c54cb8802a523748a7d78130a2cb
Author: Bjorn Helgaas <bhelgaas@google.com>
Date:   Sat Jul 2 10:47:12 2011 -0600

    x86/PCI: reduce severity of host bridge window conflict warnings

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