Distribution:RedHat 9.0 Hardware Environment:K7V motherboard with onboard ATA66 controller. Secondary controller is Promise PCD20268 - ATA100 Software Environment: 2.4.20-18.9 and 2.6.0-mm1-ac2 Problem Description: I'm attempting to use 3 HDs under software raid0. My Maxtor 40GB HD is attached to the ATA66 onboard controller on my K7V motherboard, and my two 20GB IBM HDs are attached to the secondary Promise controller (PDC20268 - ATA100). If I create a raid0 configuration consisting only of my two IBM HDs everything is fine. When using all 3 HDs the kernel locks up so tightly that even Alt+SysRq+T does not respond. All three HDs can be used in Linux provided they are not used in raid. Tests were run using ext3 and ext2. I have researched the problem for a couple weeks and the only work-around I have found is using ide=nodma which is not a very desirable solution. I will be glad to add additional info if it is needed. Just let me know. Steps to reproduce: 1. The problem should be reproducable by using a primary and secondary IDE controller under software raid0. 2.Run bonnie++
Created attachment 581 [details] .config and everything else I could think of that might be helpful Hopefully with this additional input a resolution/fix will be forthcoming soon. Once again, if additional input is needed please let me know.
Is there any additional info that I can provide that may help resolve this problem?
Is this problem still present in recent 2.6 kernels?
Please reopen this bug if you are still able to reproduce it in recent 2.6 kernels.