Description of problem: Attempting to install to a dmraid volume on an adaptec aic94xx card spits CRC errors: ddf1: virtual drives with CRC F4235BD2, expected B27A2FEA on /dev/sda ddf1: physical drives with CRC 833C5EC2, expected 132A55D9 on /dev/sda The same thing is reported to occur with adaptec's own open driver suggesting they may not be completely adhering to the ddf1 spec. Version-Release number of selected component (if applicable): dmraid-1.0.0.rc13-2.el5 How reproducible: 100% Steps to Reproduce: 1. Create an array in the BIOS management utility 2. Boot RHEL5 install media & attempt an install onto the dmraid device Actual results: Above CRC errors appear on console Expected results: Install completes succesfully Additional info: Will attach metadata dumps from the devices
Created attachment 159676 [details] ddf1 metadata dump from aic94xx
Created attachment 159677 [details] raw ddf1.dat
Comment on attachment 159676 [details] ddf1 metadata dump from aic94xx fixing content type - this is no patch!
Bryn, no, that's fine as the necessary input for now. The problem is, that the crc cwalgorithm *was* not fully clear and still isn't. If I don't get my hands on a detailed crc spec for DDF1 *including* any Adaptec quirks, there's not much I can do about it rather than wasting time on reengineering.
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REJECTED |CLOSED ------- Additional Comments From rosalesa.com (prefers email at rosalesa.com) 2008-02-18 20:16 EDT ------- Red Hat, Thanks for your support on this defect. IBM is closing this bug as "Will Not Fix." -thanks. This event sent from IssueTracker by jkachuck issue 123310
This request was previously evaluated by Red Hat Product Management for inclusion in the current Red Hat Enterprise Linux release, but Red Hat was unable to resolve it in time. This request will be reviewed for a future Red Hat Enterprise Linux release.