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Date: Tue, 17 Jul 2007 14:29:21 -0400
From: William Montgomery <william@...nicus.com>
To: Krzysztof Halasa <khc@...waw.pl>
CC: linux-kernel@...r.kernel.org
Subject: Re: e100 PCI bridge problem
Krzysztof Halasa wrote:
>William Montgomery <william@...nicus.com> writes:
>
>
>
>>I am using a PCI analyzer and it shows the bus in an idle state after
>>the lockup. The PCI transactions just prior to the lockup show a
>>couple of interrupts from the card which appear to be handled
>>correctly. Anything I should be looking for in particular?
>>
>>
>
>I'd try to check with other machine using "secondary" bus slot.
>BTW: Are you able to analyze the "primary" bus transactions while
>using the card in "secondary" bus? Perhaps there is something
>wrong in front of the motherboard bridge?
>
>
>
I am able to analyze the primary bus while the using the card in the
secondary and I see a very interesting thing on lockup - the primary
side appears to be stuck on a read access to the memory mapped control
regs of the LAN chip (82559) in what appears to be infinite target
retries to the same address. Unfortunately I havent been able to
capture what occurs just prior to this happening. This is quite
different from what I capture on the secondary side; which is an idle bus
I have posted the lspci -vv listing below...
>A broken motherboard may be hard to diagnose, unfortunately.
>
>Can you post something like "lspci -vv" taken on both machines?
>
>
Here is the lspci -vv on the machine with lockups (edited for brevity):
00:00.0 Host bridge: Intel Corp. 82845G/GL[Brookdale-G]/GE/PE DRAM
Controller/Ho
Subsystem: Intel Corp. 82845G/GL[Brookdale-G]/GE/PE DRAM
Controller/Host
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Step
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort-
Latency: 0
Region 0: Memory at f0000000 (32-bit, prefetchable) [size=64M]
Capabilities: [e4] #09 [1105]
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI
Bridge (rev 82) (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
Bus: primary=00, secondary=01, subordinate=03, sec-latency=32
I/O behind bridge: 00009000-0000afff
Memory behind bridge: f4000000-f6ffffff
Prefetchable memory behind bridge: 10000000-103fffff
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
01:0c.0 PCI bridge: Pericom Semiconductor: Unknown device 8150 (rev 02)
(prog-if 00 [Normal decode])
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: 32, cache line size 08
Bus: primary=01, secondary=02, subordinate=03, sec-latency=32
I/O behind bridge: 00009000-00009fff
Memory behind bridge: f4000000-f5ffffff
Prefetchable memory behind bridge: 0000000010000000-0000000010300000
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [b0] Slot ID: 0 slots, First-, chassis 00
02:06.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge
(non-transparent mode) (rev 15) (prog-if 00 [Normal decode])
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: 32, cache line size 08
Bus: primary=02, secondary=03, subordinate=03, sec-latency=32
I/O behind bridge: 00009000-00009fff
Memory behind bridge: f4000000-f5ffffff
Prefetchable memory behind bridge: 0000000010000000-0000000010300000
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: [80] 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: [90] #06 [0080]
Capabilities: [a0] Vital Product Data03:04.0 Ethernet
controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08)
Subsystem: Intel Corp. EtherExpress PRO/100+ Management Adapter
with Alert On LAN*
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: 32 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 18
Region 0: Memory at f5403000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at 9000 [size=64]
Region 2: Memory at f5000000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 10000000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
03:05.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100]
(rev 08)
Subsystem: Intel Corp. EtherExpress PRO/100+ Management Adapter
with Alert On LAN*
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: 32 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f5401000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at 9400 [size=64]
Region 2: Memory at f5100000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 10100000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
03:06.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100]
(rev 08)
Subsystem: Intel Corp. EtherExpress PRO/100+ Management Adapter
with Alert On LAN*
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: 32 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f5400000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at 9800 [size=64]
Region 2: Memory at f5200000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 10200000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
03:07.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100]
(rev 08)
Subsystem: Intel Corp. EtherExpress PRO/100+ Management Adapter
with Alert On LAN*
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: 32 (2000ns min, 14000ns max), cache line size 08
Interrupt: pin A routed to IRQ 17
Region 0: Memory at f5402000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at 9c00 [size=64]
Region 2: Memory at f5300000 (32-bit, non-prefetchable) [size=1M]
Expansion ROM at 10300000 [disabled] [size=1M]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-
======================
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