Messages in this thread | | | Date | Thu, 19 Oct 2006 16:24:28 -0400 | From | Mark Lord <> | Subject | Re: [2.6.19-rc2] SATA boot problems |
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Hi. I'm copying your posting for the linux-ide mailing list, where the libata designers hang out.
Robert Wruck wrote: > Hi, > > I'm having problems booting from a SATA disk with 2.6.19-rc2. > Grub loads fine, but when the kernel boots, it *sometimes* ends up with > VFS: Cannot open root device "sda5" or unknown-block(0,0) > > The strange thing is that this happens only in 2/3 of the boot attempts. > If I reset the machine, the next attempt is likely to succeed. > I first noted this when switching from 2.6.17 (2.6.17.11, IIRC) to > 2.6.18 and it persists in 2.6.19-rc2 (Windows does not encounter similar > problems on the same machine). > > I attached a diff of a successful and an unsuccessful netconsole log > below. It seems that the drive is sometimes simply not detected... > I'm not using an initrd and changing the kernel command line from > root=/dev/sda5 to root=0x0805 did not help. > > The controller is: > 00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA > Controller (rev 03) > > Any ideas? Please CC me, as I'm not subscribed. > Robert > > > ata1: SATA max UDMA/133 cmd 0xEC00 ctl 0xE802 bmdma 0xDC00 irq 19 > ata2: SATA max UDMA/133 cmd 0xE400 ctl 0xE002 bmdma 0xDC08 irq 19 > scsi0 : ata_piix > +ata1.00: ATA-7, max UDMA/133, 312581808 sectors: LBA48 NCQ (depth 0/32) > +ata1.00: ata1: dev 0 multi count 16 > +ata1.00: configured for UDMA/133 > scsi1 : ata_piix > ATA: abnormal status 0x7F on port 0xE407 > + Vendor: ATA Model: Maxtor 6V160E0 Rev: VA11 > + Type: Direct-Access ANSI SCSI revision: 05 > +SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) > +sda: Write Protect is off > +SCSI device sda: drive cache: write back > +SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB) > +sda: Write Protect is off > +SCSI device sda: drive cache: write back > + sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 > > +sd 0:0:0:0: Attached scsi disk sda > +sd 0:0:0:0: Attached scsi generic sg0 type 0 > ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 20 > ehci_hcd 0000:00:1d.7: EHCI Host Controller > ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1 > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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