Bug 461879 - " Kernel panic pci_map_single high address but no IOMMU"
Summary: " Kernel panic pci_map_single high address but no IOMMU"
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: kernel
Version: 3.8
Hardware: x86_64
OS: Linux
medium
high
Target Milestone: ---
Assignee: Don Howard
QA Contact: Martin Jenner
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2008-09-11 05:47 UTC by forumlaxman
Modified: 2009-12-03 22:58 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2009-12-03 22:58:42 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description forumlaxman 2008-09-11 05:47:54 UTC 
Hi all,

 
 I have installed RHEL 3 update 8 in Sunfire X2200.

 Hardware Specifications:  Memory : 32GB 
                           AMD64 Quad core.


  The problem is  the machine is not booting up. It displays following error while booting

 " Kernel panic pci_map_single  high address but no IOMMU" 


 I have resolved this problem by giving kernel option " mem=4g " If Iam giving more than 4gb, its giving above problem. I want to use total 32 GB of memory.
how it is possible...Pls help me//
Comment 1 John Dennis 2008-09-11 13:48:24 UTC 
Changed the component to kernel from imap, changed the assigned owner.
Comment 2 sanjaya 2008-09-17 08:52:47 UTC 
Hi John,

imap is respect to mail server. But Could it possible change /proc file system regarding the above..

If possible what are the parameter to be changed.

Please help us....


Thanks,
Comment 3 Don Howard 2009-12-03 22:58:42 UTC 
Please review bz 160799, and 504187.
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