Asset ID:	1-72-1018904.1
Update Date:	2011-01-05
Keywords:

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Solution Type  Problem Resolution Sure

Solution  1018904.1 :   Emulex LP9802DC HBA Causes Panic on UltraSPARC(R) IIIi Based Systems  


PreviouslyPublishedAs
230748

Symptoms
When attempting to access data through an Emulex LP9802DC HBA, in
UltraSPARC IIIi based systems, a panic can occur.

The signature of the panic is:
WARNING: pcisch-3: PCI fault log start:
PCI iommu error
pcisch3: Error 1 on IOMMU TLB entry 3:
Context=0 not Writable not Streamable
PCI Page Size=8k Address in page a3520000
Memory: Valid not Cacheable Page Frame=0
pcisch-3: PBM AFSR=0x0.00000000 dwordmask=0 bytemask=0
pcisch-3: PCI primary error (0):
pcisch-3: PCI secondary error (0):
pcisch-3: PBM AFAR 0.00000000:WARNING: pcisch3: PCI config space CSR=0x2a0
PCI iommu error status (3070013):
IOMMU translation stat(1): Invalid Error
PCI DMA ADDR 0
pcisch-3: PCI fault log end.
panic[cpu1]/thread=2a10001fd40: pcisch-3: PCI bus 1 error(s)!
panic[cpu1]/thread=2a10001fd40: sync initiated
The above panic occurs upon mounting of a file system through the HBA or
upon transferring data through the HBA.
The Panic string with core was reproduced on s9u5 (S9 12/03) and s8hw3 (S8
7/03). The Panic string without core was reproduced on s9u3 (S9
4/03) and s28hw1 (S8 12/02).
Analysis of failure captured in PCI trace exposed a hardware compatibility
issue between the card and the default PCI bridge settings used by the
JBus-to-PCI I/O Bridge used in these systems (tomatillo).  The frame is
active for the last data cycles. Tomatillo has to do the "demand fetch" for
the last data chunk from the unmapped page. This results in the IOMMU error.

Resolution
As a result the LP9802DC is NOT supported on these platforms, but will work
on other Sun[TM] systems which do not use the UltraSPARC IIIi processor and
JBus architecture e.g. Sun Fire[TM] V880 server. Use any other FC-AL HBA
listed in the Sun[TM] System Handbook for a Sun-qualified and supported solution.

Product
Emulex
Sun Fire V440 Server
Sun Fire V250 Server
Sun Fire V240 Server
Sun Fire V210 Server
Netra 240 Server
Sun Blade 1500 Workstation
Sun Blade 2500 Workstation
Netra 440 Server
Netra 240 Server (AC)

Internal Comments
Emulex had a proposed workaround of changing reg x42 on their bridge chip
from x0020 to x0000. This will change secondary Read Multiple prefetch from
"Full Prefetch" to "One cache line Prefetch".

With this change the systems did NOT panic but performance was negatively
impacted for all PCI cards, not just the Emulex card. As a result, Sun[TM] will
not be implementing this change for support of a non-Sun[TM] card.


Bug ID: 4994857
ESC# 550927
tomatillo, Emulex, LP9802dc, UltraSPARCIIIi, jbus, panic, pci, v210, v240, v250, v440, netra, 240, 440, blade, 1500, 2500
Previously Published As
77042

Change History
Date: 2010-12-31
User name: Dencho Kojucharov
Action: Currency check
Comments: audited by Entry-Level SPARC Content Lead

In this article the Product "Emulex" is too broad. In order to publish this document all applicable versions of Emulex must be entered in the product statement. Ex:
Sun StorageTek 2 Gb Fibre Channel PCI-X Enterprise HBA, Emulex, Single Port
Sun StorageTek 4 Gb Fibre Channel ATCA HBA, Dual Port
Sun StorageTek 4 Gb Fibre Channel ExpressModule HBA, Emulex, Dual Port
Sun StorageTek Dual 4 Gb FC Dual GbE ExpressModule HBA, Emulex
Emulex LightPulse LP8000 Fibre Channel PCI Host Bus Adapter
Sun StorageTek 2 Gb Fibre Channel PCI-X Enterprise HBA, Emulex, Dual Port
Sun StorageTek 4 Gb Fibre Channel PCIe HBA, Emulex, Single Port
Sun StorageTek 4 Gb Fibre Channel PCIe HBA, Emulex, Dual Port
Sun StorageTek Enterprise Class 4 Gb Fibre Channel PCI-X HBA, Emulex, Dual Port
Sun StorageTek Enterprise Class 4 Gb Fibre Channel PCI-X HBA, Emulex, Single Port
Sun StorageTek Enterprise Class 8 Gb FC PCIe HBA, Emulex, Dual Port
Sun StorageTek Enterprise Class 8 Gb FC PCIe HBA, Emulex, Single Port


You can look up the possibilities using the Swordfish.

Lookup tool (gives proper product Nomenclature).
http://krep.emea.sun.com/stats/swordfish/

Search Emulex and after clicking on applicable versions click Result button and
copy and paste into product statement.

Date: 2005-05-19
User Name: 97961
Action: Approved
Comment: Publishing. No further edits required.
Date: 2005-05-19
User Name: 97961
Action: Accept
Comment:
Version: 0

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