On Sat, 2005-03-19 at 08:16 -0600, Matt Domsch wrote: > On Sat, Mar 19, 2005 at 07:09:45AM +0100, Arjan van de Ven wrote: > > 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.... > > In 2.4.x it does. scsi_resize_dma_pool() has: > __get_free_pages(GFP_ATOMIC | GFP_DMA, 0); > scsi_init_minimal_dma_pool() has similar. >
oh you want to do major changes to the 2.4 tree... sounds like a bad idea to change such vm behavior.. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
