I've seen this problem in Debian Etch and Lenny, as well as Ubuntu Intrepid. All were running RAID1 with mdadm.
I can give more details. Once it starts, it's hard to get rid of. Reboots, mdadm (remove, zero superblock, then add), fsck don't help. Compatibility mode, configuring in BIOS... no change. both disk check out. If I change the SATA ports I can usually get rid of it, but it comes back again within a week or two, usually after a few days of system uptime. I really doubt this is hardware problem... I have run countless diagnostics under several different operating systems, including MS Windows. All show no HW issues. My syslog is attached, let me know if I can provide additional logs. BTW this is currently an issue on my Intrepid machine with all the latest updates as of Jan 2, 2009. ** Attachment added: "syslog.log" http://launchpadlibrarian.net/20867332/syslog.log -- Jmicron AHCI controller probs... https://bugs.launchpad.net/bugs/198871 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs