Bug 715047 - Calgary: DMA error on CalIOC2 PHB 0x3
Summary: Calgary: DMA error on CalIOC2 PHB 0x3
Keywords:
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 15
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-06-21 17:32 UTC by Jimmie Mayfield
Modified: 2012-06-06 14:36 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-06-06 14:36:58 UTC
Type: ---

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Description Jimmie Mayfield 2011-06-21 17:32:02 UTC 
Description of problem:
Bug #541615 logged against Fedora 12 was closed because F12 reached end-of-life.  I still see this DMA error while trying to install Fedora 15 onto my IBM x3850 M2 system so I'm re-opening...

Hardware: IBM x3850 M2 with integrated LSI SAS 

Version-Release number of selected component (if applicable):


How reproducible:
Every time I try to install

Steps to Reproduce:
1. Obtain x3850 M2 machine
2. Attempt to install Fedora 15 
3. During the installer kernel boot sequence, this error message will appear
  
Actual results:

Kernel reports Calgary-related DMA error during installer kernel boot sequence.  Kernel does not see the LSI SAS controller so no storage devices are found.

Expected results:

Do not expect DMA errors

Additional info:

If iommu=soft is specified to installer kernel, the DMA error does not occur and the LSI SAS controller is found and Fedora installation can proceed.
Comment 1 Chuck Ebbert 2011-06-24 16:17:57 UTC 
Does the boot option "pci=nomsi" help?
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