Re: [PATCH 2.4.30-pre3] x86_64: pci_alloc_consistent() match 2.6implementation

[Arjan van de Ven]

On Fri, 2005-03-18 at 15:23 -0600, Matt Domsch wrote:
> For review and comment.
> 
> On x86_64 systems with no IOMMU and with >4GB RAM (in fact, whenever
> there are any pages mapped above 4GB), pci_alloc_consistent() falls
> back to using ZONE_DMA for all allocations, even if the device's
> dma_mask could have supported using memory from other zones.  Problems
> can be seen when other ZONE_DMA users (SWIOTLB, scsi_malloc()) consume
> all of ZONE_DMA, leaving none left for pci_alloc_consistent() use.

scsi_malloc no longer uses ZONE_DMA nowadays....


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/