Yanko Kaneti writes: > Hi > > The integrated PDC20267 (FastTrak100 BIOS version 2.30.0140.13) > controller in following constants hardware setup behaves differently > under live-cd fedora kernels 2.6.18-1.2869 and > 2.6.23-0.214.rc8.git2.fc8. > > - Intel S845WD1-E server motherboard with onboard PDC20267 (105a:4d30), > latest bios revision P12 > - two HDT722525DLAT80 Hitachi 250GB harddrives in master mode connected > to the two PDC20267 channels > - a cd connected to the chipset 82801EB/ER (ICH5/ICH5R) IDE Controller > for the purpose of booting the live-cd > > > The two disk are put in a md raid1 setup. The first one is online, the > second is being added and the raid starts reconstructing. > The reconstruction works fine with 2.6.18 with a speed of approximately > 50MB/s. > With 2.6.23 immediately as the reconstruction begins there is string of > ATA bus errors and port resets until it settles on PIO4 transfer mode. Your 2.6.18 kernel is using the IDE pdc202xx_old driver, while your 2.6.23 kernel is using the libata pata_pdc202xx_old driver. The latter one is marked experimental and is known to not work very well yet. Just switch to the IDE pdc202xx_old driver instead. /Mikael - 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
