From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.2) Gecko/20030708 Description of problem: Having reviewed the kernel source for the current 2.4.9-e.25 kernel used for RH AS and ES 2.1 it seems that support for the AMD Viper 7441 chipset was never added to this kernel (though was long ago added within the 7.x kernel tree - see bugzilla #68063 for last time this seemed to have been reported). Would it be possible for Red Hat to add in support for this chipset into the RH EL line of kernels ? Without this hardware support within the kernel, the system boots by default without UDMA support enabled, resulting in slow IDE hard drive transfer rates (when running hdparm -t /dev/hda). Using the kernel.org 2.4.20 kernel I created a patch file to update the amd74xx.c and associated files within the 2.4.9-e25 kernel which once patched and compiled into the kernel will boot with UDMA enabled on the drives by default. Please let me know if you have any follow-up questions and any time frame on when this can be added into the Red Hat Enterprise 2.1 AS & ES kernels. Regards, Clifford Rackspace Managed Hosting. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1.Gain access to server which has this chipset on it 2.Install RH ES/AS on an IDE hard drive system 3.Boot and try running hdparm -t on the drive Actual Results: hdparm /dev/hda will show that udma is not enabled on the drive and dmesg shows that the IDE chipset was not recognised by the kernel. Expected Results: UDMA is enabled by default and chipset is fully recognised by the kernel. Additional info:
Created attachment 93786 [details] Patch file to give support for AMD viper 7441 chipset
Ok with me - would favour leaving out pci-irq change (its right but not neccessary)
Fix included in U5 beta, changing to modified. http://people.redhat.com/~jbaron/.private/u5/2.4.9-e.46/
An errata 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. http://rhn.redhat.com/errata/RHSA-2004-437.html