On Wed, 2006-02-15 at 21:44 -0800, Nicholas Miell wrote: > >From time to time, I've been experiencing timeouts with my SATA disk (a > Seagate ST3300831AS) attached to a VIA VT6420 controller on a VIA > K8T800-based MSI motherboard. This has happened somewhat rarely on a > variety of Fedora kernel versions. > > Basically, sometimes IO will get really slow and I'll start getting > "ata1: command 0x35 timeout, stat 0x50 host_stat 0x4" in my logs, with > the occasional "ata1: command 0x25 timeout, stat 0x50 host_stat 0x4" and > "ata1: command 0xb0 timeout, stat 0x50 host_stat 0x0" thrown in for good > measure. > > The disk (and/or controller) isn't unresponsive -- I can do a smartctl > -a -d ata /dev/sda and it'll complete (eventually), and IO to the disk > continues (very slowly), but it's generally unusable until the next > reboot. I actually managed to successfully unmount the filesystem and deactivate the LVM volume group for once, which allowed me to remove and reload sata_via, libata, sd_mod and scsi_mod. After the drivers were reloaded, IO to the disk worked fine, which leads me to think that sata_via and/or libata needs the ability to reset the hardware when errors occur. -- Nicholas Miell <nmiell@xxxxxxxxxxx> - : 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
