Bug 21189

Summary:	megaraid driver <=v1.12 can't handle >4GB RAM
Product:	[Retired] Red Hat Linux	Reporter:	Matt Domsch <matt_domsch>
Component:	kernel	Assignee:	Michael K. Johnson <johnsonm>
Status:	CLOSED RAWHIDE	QA Contact:	Brock Organ <borgan>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.3	CC:	notting, peterj
Target Milestone:	---
Target Release:	---
Hardware:	ia64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
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Clone Of:		Environment:
Last Closed:	2000-12-08 20:14:16 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Matt Domsch 2000-11-21 17:00:56 UTC

The megaraid driver v1.12 and before cannot handle more than 4GB of RAM.  
v1.12 was supposed to solve this, but is using virtual addresses instead 
of physical addresses for DMA transfers.

PeterJ is working to address this issue.

Comment 1 Matt Domsch 2000-12-08 20:14:13 UTC

Megaraid driver 1.13beta is included in the IA-64 build 12/07/00, and supports 
64-bit DMA addresses fully.  Closing.