Hi all,
I have seen the following message in /var/log/messages file :-
PCI: Device 0000:01:00.0 not available because of resource collisions
Whenever this msg comes, the PCI card which is present in 0000:01:00.0
is not useful/accessible.
While detection of card, pci_set_master() fails.
But after reboot, that msg goes & card is working fine.
This card is a Network controller PCI-Express based card.
The above problem comes very rarely & not on all the test nodes. The
situation may be difficult to reproduce.
So, my question is, what to interpret from the above message ?
PCI bios allocates the PCI resources. So where to look to remove this error ?
TIA,
Yogeshwar
yogeshwar sonawane wrote:
> Hi all,
>
> I have seen the following message in /var/log/messages file :-
>
> PCI: Device 0000:01:00.0 not available because of resource collisions
>
> Whenever this msg comes, the PCI card which is present in 0000:01:00.0
> is not useful/accessible.
> While detection of card, pci_set_master() fails.
> But after reboot, that msg goes & card is working fine.
>
> This card is a Network controller PCI-Express based card.
> The above problem comes very rarely & not on all the test nodes. The
> situation may be difficult to reproduce.
>
> So, my question is, what to interpret from the above message ?
> PCI bios allocates the PCI resources. So where to look to remove this error ?
Is there something overlapping in the PCI resource allocations? Can you
post the lspci -vv output?
Hi Robert,
Currently card is inserted in PCI slot 06:00.0 & working fine. The
above said problem is observed very few times like 2 or 3. So, i am
sending today's lspci -vv output.
The lspci -vv output follows & it is attached also: -
00:00.0 Host bridge: Intel Corporation: Unknown device 4003 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Interrupt: pin A routed to IRQ 169
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable-
Address: fee00000 Data: 0000
Capabilities: [6c] Express Root Port (Slot-) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s L1, Port 0
Link: Latency L0s <1us, L1 <4us
Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch-
Link: Speed 2.5Gb/s, Width x4
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [100] Advanced Error Reporting
00:01.0 PCI bridge: Intel Corporation: Unknown device 4021 (rev 20)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable-
Address: fee00000 Data: 0000
Capabilities: [6c] Express Root Port (Slot+) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed unknown, Width x8, ASPM L0s L1, Port 4
Link: Latency L0s <1us, L1 <4us
Link: ASPM Disabled RCB 64 bytes Disabled CommClk- ExtSynch-
Link: Speed unknown, Width x8
Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise-
Slot: Number 0, PowerLimit 0.000000
Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
Slot: AttnInd Off, PwrInd Off, Power-
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [b0] #0d [0000]
Capabilities: [100] Advanced Error Reporting
00:03.0 PCI bridge: Intel Corporation: Unknown device 4023 (rev 20)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable-
Address: fee00000 Data: 0000
Capabilities: [6c] Express Root Port (Slot+) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed unknown, Width x8, ASPM L0s L1, Port 6
Link: Latency L0s <1us, L1 <4us
Link: ASPM Disabled RCB 64 bytes Disabled CommClk- ExtSynch-
Link: Speed unknown, Width x8
Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise-
Slot: Number 0, PowerLimit 0.000000
Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
Slot: AttnInd Off, PwrInd Off, Power-
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [b0] #0d [0000]
Capabilities: [100] Advanced Error Reporting
00:05.0 PCI bridge: Intel Corporation: Unknown device 4025 (rev 20)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable-
Address: fee00000 Data: 0000
Capabilities: [6c] Express Root Port (Slot+) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed unknown, Width x8, ASPM L0s L1, Port 8
Link: Latency L0s <1us, L1 <4us
Link: ASPM Disabled RCB 64 bytes Disabled CommClk- ExtSynch-
Link: Speed unknown, Width x8
Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise-
Slot: Number 0, PowerLimit 0.000000
Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
Slot: AttnInd Off, PwrInd Off, Power-
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [b0] #0d [0000]
Capabilities: [100] Advanced Error Reporting
00:07.0 PCI bridge: Intel Corporation: Unknown device 4027 (rev 20)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=00, secondary=04, subordinate=07, sec-latency=0
Memory behind bridge: de000000-df0fffff
Prefetchable memory behind bridge: 00000000d8000000-00000000ddf00000
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable-
Address: fee00000 Data: 0000
Capabilities: [6c] Express Root Port (Slot-) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed unknown, Width x8, ASPM L0s L1, Port 10
Link: Latency L0s <1us, L1 <4us
Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch-
Link: Speed unknown, Width x8
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [b0] #0d [0000]
Capabilities: [100] Advanced Error Reporting
00:09.0 PCI bridge: Intel Corporation: Unknown device 4029 (rev 20)
(prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: df100000-df1fffff
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable-
Address: fee00000 Data: 0000
Capabilities: [6c] Express Root Port (Slot+) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed unknown, Width x4, ASPM L0s L1, Port 12
Link: Latency L0s <1us, L1 <4us
Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch-
Link: Speed unknown, Width x4
Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise-
Slot: Number 0, PowerLimit 0.000000
Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
Slot: AttnInd Off, PwrInd Off, Power-
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [b0] #0d [0000]
Capabilities: [100] Advanced Error Reporting
00:0f.0 System peripheral: Intel Corporation: Unknown device 402f (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 217
Region 0: Memory at fe700000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] MSI-X: Enable- Mask- TabSize=4
Vector table: BAR=0 offset=00002000
PBA: BAR=0 offset=00003000
Capabilities: [6c] Express Unknown type IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed unknown, Width x0, ASPM unknown, Port 0
Link: Latency L0s <64ns, L1 <1us
Link: ASPM Disabled CommClk- ExtSynch-
Link: Speed unknown, Width x0
00:10.0 Host bridge: Intel Corporation: Unknown device 4030 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:10.1 Host bridge: Intel Corporation: Unknown device 4030 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:10.2 Host bridge: Intel Corporation: Unknown device 4030 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:10.3 Host bridge: Intel Corporation: Unknown device 4030 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:10.4 Host bridge: Intel Corporation: Unknown device 4030 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:11.0 Host bridge: Intel Corporation: Unknown device 4031 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:15.0 Host bridge: Intel Corporation: Unknown device 4035 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:15.1 Host bridge: Intel Corporation: Unknown device 4035 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:16.0 Host bridge: Intel Corporation: Unknown device 4036 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:16.1 Host bridge: Intel Corporation: Unknown device 4036 (rev 20)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
00:1c.0 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI
Express Root Port 1 (rev 09) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=00, secondary=09, subordinate=09, sec-latency=0
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [40] Express Root Port (Slot+) IRQ 0
Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag+
Device: Latency L0s unlimited, L1 unlimited
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 128 bytes
Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s L1, Port 1
Link: Latency L0s <256ns, L1 <4us
Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch-
Link: Speed 2.5Gb/s, Width x4
Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug+ Surpise+
Slot: Number 0, PowerLimit 0.000000
Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq-
Slot: AttnInd Unknown, PwrInd Unknown, Power-
Root: Correctable- Non-Fatal- Fatal- PME-
Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable-
Address: 00000000 Data: 0000
Capabilities: [90] #0d [0000]
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [100] Virtual Channel
Capabilities: [180] Unknown (5)
00:1d.0 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
UHCI USB Controller #1 (rev 09) (prog-if 00 [UHCI])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 225
Region 4: I/O ports at 1800 [size=32]
00:1d.1 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
UHCI USB Controller #2 (rev 09) (prog-if 00 [UHCI])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 233
Region 4: I/O ports at 1820 [size=32]
00:1d.2 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
UHCI USB Controller #3 (rev 09) (prog-if 00 [UHCI])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin C routed to IRQ 50
Region 4: I/O ports at 1840 [size=32]
00:1d.7 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset
EHCI USB2 Controller (rev 09) (prog-if 20 [EHCI])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin D routed to IRQ 58
Region 0: Memory at df504000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d9)
(prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Bus: primary=00, secondary=0a, subordinate=0a, sec-latency=32
I/O behind bridge: 00003000-00003fff
Memory behind bridge: df200000-df2fffff
Prefetchable memory behind bridge: 00000000d0000000-00000000d7f00000
Secondary status: 66Mhz- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
Capabilities: [50] #0d [0000]
00:1f.0 ISA bridge: Intel Corporation 631xESB/632xESB/3100 Chipset LPC
Interface Controller (rev 09)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
00:1f.1 IDE interface: Intel Corporation 631xESB/632xESB IDE
Controller (rev 09) (prog-if 8a [Master SecP PriP])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin A routed to IRQ 169
Region 0: I/O ports at <unassigned>
Region 1: I/O ports at <unassigned>
Region 2: I/O ports at <unassigned>
Region 3: I/O ports at <unassigned>
Region 4: I/O ports at 1860 [size=16]
00:1f.2 IDE interface: Intel Corporation 631xESB/632xESB/3100 Chipset
SATA Storage Controller IDE (rev 09) (prog-if 8f [Master SecP SecO
PriP PriO])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0
Interrupt: pin B routed to IRQ 66
Region 0: I/O ports at 18a0 [size=8]
Region 1: I/O ports at 1898 [size=4]
Region 2: I/O ports at 1890 [size=8]
Region 3: I/O ports at 1874 [size=4]
Region 4: I/O ports at 1880 [size=16]
Region 5: Memory at df504400 (32-bit, non-prefetchable) [size=1K]
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:1f.3 SMBus: Intel Corporation 631xESB/632xESB/3100 Chipset SMBus
Controller (rev 09)
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin C routed to IRQ 74
Region 4: I/O ports at 1100 [size=32]
04:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express
Upstream Port (rev 01) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=04, secondary=05, subordinate=06, sec-latency=0
Memory behind bridge: de000000-deffffff
Prefetchable memory behind bridge: 00000000d8000000-00000000ddf00000
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] Express Upstream Port IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: AtnBtn- AtnInd- PwrInd-
Device: SlotPowerLimit 0.000000
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 4096 bytes
Link: Supported Speed 2.5Gb/s, Width x8, ASPM L0s, Port 0
Link: Latency L0s unlimited, L1 unlimited
Link: ASPM Disabled CommClk- ExtSynch-
Link: Speed 2.5Gb/s, Width x8
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] #0d [0000]
Capabilities: [100] Advanced Error Reporting
04:00.3 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express to
PCI-X Bridge (rev 01) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 10
Bus: primary=04, secondary=07, subordinate=07, sec-latency=64
Secondary status: 66Mhz+ FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] Express PCI/PCI-X Bridge IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal+ Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 256 bytes, MaxReadReq 256 bytes
Link: Supported Speed 2.5Gb/s, Width x8, ASPM L0s, Port 0
Link: Latency L0s unlimited, L1 unlimited
Link: ASPM Disabled CommClk- ExtSynch-
Link: Speed 2.5Gb/s, Width x8
Capabilities: [6c] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] #0d [0000]
Capabilities: [d8] PCI-X bridge device.
Secondary Status: 64bit+, 133MHz+, SCD-, USC-, SCO-, SRD- Freq=3
Status: Bus=0 Dev=0 Func=3 64bit- 133MHz- SCD- USC-, SCO-, SRD-
: Upstream: Capacity=65535, Commitment Limit=65535
: Downstream: Capacity=65535, Commitment Limit=65535
Capabilities: [100] Advanced Error Reporting
05:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express
Downstream Port E1 (rev 01) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Bus: primary=05, secondary=06, subordinate=06, sec-latency=0
Memory behind bridge: de000000-deffffff
Prefetchable memory behind bridge: 00000000d8000000-00000000ddf00000
Secondary status: 66Mhz- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] Express Downstream Port (Slot-) IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <64ns, L1 <1us
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
Device: MaxPayload 128 bytes, MaxReadReq 2048 bytes
Link: Supported Speed 2.5Gb/s, Width x8, ASPM L0s, Port 0
Link: Latency L0s unlimited, L1 unlimited
Link: ASPM Disabled CommClk- ExtSynch-
Link: Speed 2.5Gb/s, Width x8
Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [70] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [80] #0d [0000]
Capabilities: [100] Advanced Error Reporting
06:00.0 Network controller: Centre for Development of Advanced
Computing: Unknown device 0102
Subsystem: Centre for Development of Advanced Computing: Unknown device 0102
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Interrupt: pin A routed to IRQ 114
Region 0: Memory at de000000 (64-bit, non-prefetchable) [size=16M]
Region 2: Memory at d8000000 (64-bit, prefetchable) [size=64M]
Region 4: Memory at dc000000 (64-bit, prefetchable) [size=32M]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
Address: 00000000fee02000 Data: 4072
Capabilities: [58] Express Endpoint IRQ 0
Device: Supported: MaxPayload 512 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s unlimited, L1 unlimited
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s, Port 0
Link: Latency L0s unlimited, L1 unlimited
Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
Link: Speed 2.5Gb/s, Width x4
Capabilities: [100] Device Serial Number 00-00-00-00-00-00-00-00
08:00.0 Ethernet controller: Intel Corporation: Unknown device 10a7 (rev 02)
Subsystem: Super Micro Computer Inc: Unknown device 10a7
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Interrupt: pin A routed to IRQ 98
Region 0: Memory at df140000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at df120000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at 2000 [size=32]
Region 3: Memory at df100000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
Address: 00000000fee00000 Data: 4062
Capabilities: [60] MSI-X: Enable- Mask- TabSize=10
Vector table: BAR=3 offset=00000000
PBA: BAR=3 offset=00002000
Capabilities: [a0] Express Endpoint IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <512ns, L1 <64us
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s L1, Port 12
Link: Latency L0s <4us, L1 <64us
Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
Link: Speed 2.5Gb/s, Width x4
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 6a-05-c2-ff-ff-48-30-00
08:00.1 Ethernet controller: Intel Corporation: Unknown device 10a7 (rev 02)
Subsystem: Super Micro Computer Inc: Unknown device 10a7
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size 08
Interrupt: pin B routed to IRQ 106
Region 0: Memory at df180000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at df160000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at 2020 [size=32]
Region 3: Memory at df104000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
Address: 00000000fee04000 Data: 406a
Capabilities: [60] MSI-X: Enable- Mask- TabSize=10
Vector table: BAR=3 offset=00000000
PBA: BAR=3 offset=00002000
Capabilities: [a0] Express Endpoint IRQ 0
Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag-
Device: Latency L0s <512ns, L1 <64us
Device: AtnBtn- AtnInd- PwrInd-
Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s L1, Port 12
Link: Latency L0s <4us, L1 <64us
Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
Link: Speed 2.5Gb/s, Width x4
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 6a-05-c2-ff-ff-48-30-00
0a:01.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev
02) (prog-if 00 [VGA])
Subsystem: Super Micro Computer Inc: Unknown device a280
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping+ SERR- FastB2B+
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 66 (2000ns min), Cache Line Size 08
Interrupt: pin A routed to IRQ 74
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
Region 1: I/O ports at 3000 [size=256]
Region 2: Memory at df200000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
On Wed, Dec 31, 2008 at 12:47 PM, Robert Hancock <[email protected]> wrote:
> yogeshwar sonawane wrote:
>>
>> Hi all,
>>
>> I have seen the following message in /var/log/messages file :-
>>
>> PCI: Device 0000:01:00.0 not available because of resource collisions
>>
>> Whenever this msg comes, the PCI card which is present in 0000:01:00.0
>> is not useful/accessible.
>> While detection of card, pci_set_master() fails.
>> But after reboot, that msg goes & card is working fine.
>>
>> This card is a Network controller PCI-Express based card.
>> The above problem comes very rarely & not on all the test nodes. The
>> situation may be difficult to reproduce.
>>
>> So, my question is, what to interpret from the above message ?
>> PCI bios allocates the PCI resources. So where to look to remove this
>> error ?
>
> Is there something overlapping in the PCI resource allocations? Can you post
> the lspci -vv output?
>
yogeshwar sonawane wrote:
> Hi Robert,
>
> Currently card is inserted in PCI slot 06:00.0 & working fine. The
> above said problem is observed very few times like 2 or 3. So, i am
> sending today's lspci -vv output.
> The lspci -vv output follows & it is attached also: -
(snip)
>
> 06:00.0 Network controller: Centre for Development of Advanced
> Computing: Unknown device 0102
> Subsystem: Centre for Development of Advanced Computing: Unknown device 0102
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B-
> Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR-
> Latency: 0, Cache Line Size 08
> Interrupt: pin A routed to IRQ 114
> Region 0: Memory at de000000 (64-bit, non-prefetchable) [size=16M]
> Region 2: Memory at d8000000 (64-bit, prefetchable) [size=64M]
> Region 4: Memory at dc000000 (64-bit, prefetchable) [size=32M]
> Capabilities: [40] Power Management version 2
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
> Status: D0 PME-Enable- DSel=0 DScale=1 PME-
> Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
> Address: 00000000fee02000 Data: 4072
> Capabilities: [58] Express Endpoint IRQ 0
> Device: Supported: MaxPayload 512 bytes, PhantFunc 0, ExtTag-
> Device: Latency L0s unlimited, L1 unlimited
> Device: AtnBtn- AtnInd- PwrInd-
> Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
> Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
> Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
> Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s, Port 0
> Link: Latency L0s unlimited, L1 unlimited
> Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch-
> Link: Speed 2.5Gb/s, Width x4
> Capabilities: [100] Device Serial Number 00-00-00-00-00-00-00-00
Well, everything seems pretty much fine here.. think we'd really need
the lspci and dmesg output when the problem actually shows up. I'm not
sure why the BIOS wouldn't have been able to allocate resources for the
card only sometimes.. The only thing that seems unusual is that you
don't often see devices with a 16MB non-prefetchable BAR (the big ones
are usually prefetchable video RAM from a graphics card), and the
non-prefetchable and prefetchable regions may have to go into different
bridge windows.. it could be that is tripping up the BIOS.
> On Wed, Dec 31, 2008 at 12:47 PM, Robert Hancock <[email protected]> wrote:
>> yogeshwar sonawane wrote:
>>> Hi all,
>>>
>>> I have seen the following message in /var/log/messages file :-
>>>
>>> PCI: Device 0000:01:00.0 not available because of resource collisions
>>>
>>> Whenever this msg comes, the PCI card which is present in 0000:01:00.0
>>> is not useful/accessible.
>>> While detection of card, pci_set_master() fails.
>>> But after reboot, that msg goes & card is working fine.
>>>
>>> This card is a Network controller PCI-Express based card.
>>> The above problem comes very rarely & not on all the test nodes. The
>>> situation may be difficult to reproduce.
>>>
>>> So, my question is, what to interpret from the above message ?
>>> PCI bios allocates the PCI resources. So where to look to remove this
>>> error ?
>> Is there something overlapping in the PCI resource allocations? Can you post
>> the lspci -vv output?
>>