Bug #1593
Updated by tuxillo almost 2 years ago
This panic occurs when trying to read a defective SATA hard drive with ahci. On the same machine, when using the nata disk driver (by disabling ahci in BIOS), the disk is still unreadable with READ_DMA errors but the kernel does not panic. System is DragonFly 2.4.1 running on a Core 2 Duo machine with an Intel ICH9 SATA chipset. The mainboard is a Supermicro X7SBL-LN2: http://www.supermicro.com/products/motherboard/Xeon3000/3200/X7SBL-LN2.cfm gzipped kernel and core file are available here: http://www.wolfpond.org/crash.dfly/