DMA u sata (was: nereagujici aplikace pri spouste volneho cpu)

[Roman DAVID]

Aleš Kozumplík wrote:

> ACPI: Using IOAPIC for interrupt routing
.........
> PCI: Using ACPI for IRQ routing
> ** PCI interrupts are no longer routed automatically.  If this
> ** causes a device to stop working, it is probably because the
> ** driver failed to call pci_enable_device().  As a temporary
> ** workaround, the "pci=routeirq" argument restores the old
> ** behavior.  If this argument makes the device work again,
> ** please email the output of "lspci" to bjorn.helgaas na hp.com
> ** so I can fix the driver.

Pripadne zkuste to, co vam pisou v dmesg.
Ja tu IOAPIC nemam, takze ten radic mam na irq 10
(vy jej mate na irq 177 - jeste jsem se s tim nesetkal).

Btw, ten proces, co zere CPU je kdo ? (treba cp ?)
Imho kdyby byl problem v DMA (vypnute)  a jelo by to
v PIO modu, tak by to v top-u bylo videt jako system.
Navic by hdparm kazdopadne nevypsal pres 40MB/s rychlost cteni.

Myslim, ze je potreba hledat jinde, nez u DMA disku.

Roman DAVID