Hello, Michael Guntsche wrote: > ata_piix 0000:00:07.1: version 2.12 > scsi0 : ata_piix > scsi1 : ata_piix > ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xe800 irq 14 > ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xe808 irq 15 > ata1.00: ATA-5: IC35L040AVER07-0, ER4OA45A, max UDMA/100 > ata1.00: 66055248 sectors, multi 16: LBA > ata1.00: configured for MWDMA2 > ata2.01: NODEV after polling detection > ata2.00: ATAPI: SAMSUNG CD-R/RW SW-408B, M300, max MWDMA2 > ata2.00: configured for MWDMA2 > > This is the output I get. I do not know if I have any stalls there since I > am not in front of the machine right now. > But if I understand "NODEV after polling detection" correctly, the code is > no able to see that there is nothing attached there. > I will give it another reboot when I am back home to see if the stall is > still happening. Yeap, it's working correctly now. > On a side note, since we are already talking about old chipsets and mobos. > Since this is a rather old hardware it was not possible to get the 40GB IBM > disk running in the first place. > What I did back then (2.4 kernel days) was to use "ibmsetmax" to clamp the > disk to a smaller size and enabled the relevent option in the kernel. This > way I got past the BIOS (it stopped if the harddisk was saying it was > > 32GB??) but the linux kernel correctly saw the right size. > Looking ad the dmesg output right now I think that it is only seeing the > smaller size. > > sd 0:0:0:0: [sda] 66055248 512-byte hardware sectors (33820 MB) > sd 0:0:0:0: [sda] Write Protect is off > sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 > sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't > support DPO > > ibmsetmax output: > ./ibmsetmax /dev/sda > Using device /dev/sda > native max address: 66055247 > that is 33820286976 bytes, 33.8 GB > lba capacity: 66055248 sectors (33820286976 bytes) > > Is the clamping feature present in 2.6 by default? I cannot test this with > a 2.4 kernel right now, since the libc no longer supports it. :) Does libata.ignore_hpa=1 help? -- tejun -- 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
