Red Hat Bugzilla – Bug 248327
RHEL5: MegaRAID SATA RAID 150-4/6 are not supported 64-bit DMA
Last modified: 2008-01-09 12:25:58 EST
Description of problem:
smp and hugemem kernels hangs or tried to access beyond end of device on the
nodes with more than 4Gb memory and LSI Logic MegaRAID SATA RAID Controllers
(150-4 or 150-6).
I've reported about this issue in RHEL4:
LSI Logic MegaRAID SATA RAID Controllers (150-4 and 150-6) are not works
correctly if more than 4 GB memory installed on the node. According to Ju
Seokmann this hardware is not supported 64 bit DMA.
However this issue is still not fixed in RHEL5 kernels, the following patch has
Created attachment 161375 [details]
patch against RHEL-5 kernel
You can download this test kernel from http://people.redhat.com/dzickus/el5
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.