Hello, I have been trying to compile kernel 2.6.24.7 to boot from an IBM Netvista N220 (8363) http://jeanchristophe.duber.free.fr/netvista_8363/ however, some people points that the IDE DMA driver is broken (http://www.selfservix.org/n2200.htm). For sure, i cannot have the kernel option "Cyrix/National Semiconductor CS5530 MediaGX chipset support (BLK_DEV_CS5530)" enabled, or the Netvista will complain with the messages bellow, using kernel 2.6.24.7 (i haven't used any more recent kernel because since kernel 2.6.24.7 they just fail to boot in Netvista 8363). ... ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx CS5530: IDE controller (0x1078:0x0102 rev 0x00) at PCI slot 0000:00:12.2 CS5530: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio hda: SILICON POWER, ATA DISK drive hda: UDMA/33 mode selected ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: max request size: 128KiB hda: 2000880 sectors (1024 MB) w/2KiB Cache, CHS=1985/16/63 hda:<4>hda: dma_timer_expiry: dma status == 0x20 hda: DMA timeout retry hda: timeout waiting for DMA hda: status error: status=0x58 { DriveReady SeekComplete DataRequest } ide: failed opcode was: unknown hda: drive not ready for command ide0: reset: success Clocksource tsc unstable (delta = 119999355 ns) time: pit clocksource has been installed. hda: irq timeout: status=0xd0 { Busy } ide: failed opcode was: unknown ide0: reset timed-out: status=0x80 hda: status timeout: status=0x80 { Busy } ide: failed opcode was: unknown end_request: I/O error, dev hda, sector 0 Buffer I/O error on device hda, logical block 0 hda: drive not ready for command hda: status timeout: status=0x80 { Busy } ide: failed opcode was: unknown hda: DMA disabled hda: drive not ready for command ide0: reset timed-out, status=0x80 end_request: I/O error, dev hda, sector 0 Buffer I/O error on device hda, logical block 0 unable to read partition table ... VFS: Cannot open root device "<NULL>" or unknown-block(0,0) Please append a correct "root=" boot option; here are the available partitions: 0300 1000440 hda driver: ide-disk Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Does anyone know what could be the problem here? IBM Netvista is a thin client with Geode GX1 and boots the kernel directly from ext3 without any boot loader. It does not support any kernel boot parameters. Thank you -- ----------------------------------------- Antonio Cardoso Martins digiplan.pt@xxxxxxxxx ----------------------------------------- -- 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