Hi all. I had two raid problem when upgrade kernel from 2.2(2.2.19aa1, which includes raid patch) to 2.4(2.4.20pre11) on alpha architecture. The one is the raid superblock incompatibility. This is the same problem when Neil Brown added --sparc2.2 option to mdadm. I found it by Google and downloaded mdadm-1.0.1, then I broke superblock ;-) . Please release mdadm-1.0.2 soon that fix the --sparc2.2 option problem mentioned in the flowing mail. http://marc.theaimsgroup.com/?l=linux-raid&m=102198306132665&w=2 After I recovered the superblock, I got another problem. It is the checksum of superblock incompatibility between mdadm and kernel. The checksum routine of raid superblock in kernel is linux/driver/md/md.c check_disk_sb -> calc_sb_csum -> linux/arch/alpha/lib/checksum.c csum_partial -> do_csum and it generates BAD_CSUM warning against mdadam's generating csum. It may be a compiler problem. $ gcc -v Reading specs from /usr/lib/gcc-lib/alpha-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-85) I can successfully recovered the raid partition. But I hope these problem are solved. Best Regards. (I'm not on the list, so please Cc: if you replay) ----------------------------------- CHIKAMA Masaki @ NAIST E-Mail: masaki-c@is.aist-nara.ac.jp - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
