dmesg: ata2.00: failed to set xfermode (err_mask=0x100) ata2.00: disabled hardware: WD 500GB SATA on PCI Sil 3512 card (boot device) Pioneer CD-ROM on PIIX4 kernel.org vanilla sources 2.6.31.1 2.6.32.9 Upon upgrading to 2.6.32.9 my CD-ROM is now dead. With 2.6.31.1 I was using the libata driver along with the old style IDE driver PIIX4 and both the HD and CD-ROM worked fine. When I rolled the new 2.6.32.9 kernel, I decided to go all libata, thus removing all the old IDE stuff in make menuconfig, and adding the PIIX4 support in the libata section along with SCSI CD-ROM support in the SCSI section, per instructions I'd found. Relevant .config snippets: # Protocols CONFIG_BLK_DEV=y CONFIG_BLK_DEV_FD=y CONFIG_HAVE_IDE=y # CONFIG_IDE is not set # SCSI device support CONFIG_SCSI=y CONFIG_SCSI_DMA=y CONFIG_SCSI_PROC_FS=y # SCSI support type (disk, tape, CD-ROM) CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=y CONFIG_SCSI_WAIT_SCAN=m # SCSI Transports CONFIG_ATA=y CONFIG_ATA_VERBOSE_ERROR=y CONFIG_ATA_SFF=y CONFIG_ATA_PIIX=y CONFIG_SATA_SIL=y I always roll my drivers into the kernel. It's just my preference, so let's please not debate the merits of kernel modules in this thread. I only mention it as menuconfig for some odd reason doesn't give me the option to roll CONFIG_SCSI_WAIT_SCAN into the kernel, but insists on making it a module. The one exception to this, apparently, is if I completely disable module support, in which case it rolls it into the kernel. It would be nice if menuconfig gave an option to force it into the kernel even if module support is enabled. Seems silly to have all the SCSI stuff built into the kernel except this one thing. I don't think this is related to the current problem, but I mention it just in case. I'm not sure if the module is actually loading. This probably is not the right name to give modprobe but I don't know what it would be: ~$ modprobe CONFIG_SCSI_WAIT_SCAN FATAL: Module CONFIG_SCSI_WAIT_SCAN not found. Anyway, should I roll another 2.6.32.9 reverting back to the dual IDE/libata driver setup to get the CD-ROM working again, or is there some neat trick you fine folks can share that will force libata to start playing nice with PIIX4 and the CD-ROM? Thanks. -- Stan -- 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
