Possible MD RAID 5 or sata_sil driver issues. Summary: I created an XFS filesystem on top of a MD RAID5 across 4 SATA drives connected to a single SIL3114 PCI card. Problem: I am seeing errors and corrupted files, as checked by CRC and PAR2. This is a brand new filesystem, on new drives. The drives do not have smart errors, and have even been zeroed out, as well as reading all blocks with offline smart checks, badblocks, and even ddrescue. This also shows up in the mismatch_cnt after sending check to sync_action. Sending repair to sync_action, and then later sending check doesn't fix it. I have seen this issue regardless if it is XFS or even EXT4, so I am not assuming it is not related to the filesystem. Although I did note that MD didn't start recovering after being created until a filesystem was created. I do not see these issues when using the drives without RAID. This leaves me with the only common pieces is the card and the md software, which is why I am writing both of you. It might be something weird with the interaction of the two. I have tried looking at the sata_sil code, and don't see an easy way to enable debugging via insmod. I have not tried turning on any debug in md, and can't unload it as my root, etc. is on a md mirror. Linux Kernel: SUSE 3.0.4-2-desktop. SiI 3114 IDE BIOS 4/22/2008 5.5.0.0 Please let me know what additional details would be helpful, and if I should point this at a particular email distribution. -- Jim Mills -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
