Hi all, I'm experiencing this behaviour and I don't understand why. Sometimes (at least 1 times for day) my kernel log those messages: Feb 21 10:51:56 delo kernel: hdc: irq timeout: status=0xd0 { Busy } Feb 21 10:52:01 delo kernel: hdc: status timeout: status=0xd0 { Busy } Feb 21 10:52:01 delo kernel: hdc: drive not ready for command Feb 21 10:52:06 delo kernel: hdc: status timeout: status=0xd0 { Busy } Feb 21 10:52:06 delo kernel: hdc: drive not ready for command Feb 21 10:52:11 delo kernel: hdc: status timeout: status=0xd0 { Busy } Feb 21 10:52:11 delo kernel: hdc: drive not ready for command repeated for at least 150 times. After that I see the messages Feb 21 10:58:56 delo kernel: hdc: ATAPI reset complete and all returns normal. I can't understand who is using hdc (that is a DVD) and why, but I think it's a scheduled job. Messages appears after the 2911 Kernel. Someone can help me solving this problem? Tnx Ambrogio