Hugh Dickins wrote: > (...) I'm expecting this to be a regression we introduced in > 2.6.15, rather than recently in 2.6.22 (now, that's better isn't it ;-?) > (...) > I think sound/isa/es18xx.c's > snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, > will take it to sound/core/memalloc.c's > res = dma_alloc_coherent(dev, PAGE_SIZE << pg, dma, gfp_flags); > where we've carefully included __GFP_COMP in gfp_flags to avoid this > kind of problem (replacing the pre-2.6.15 use of PageReserved). > (...) > Blame me or Nick for removing the > special PageReserved usage, or Alpha for ignoring our gfp_flags: > > #define dma_alloc_coherent(dev, size, addr, gfp) \ > pci_alloc_consistent(alpha_gendev_to_pci(dev), size, addr) > > When you get a chance, please would you try patch below? > > --- 2.6.22-rc7/arch/alpha/kernel/pci_iommu.c 2007-06-05 06:19:19.000000000 +0100 > +++ linux/arch/alpha/kernel/pci_iommu.c 2007-07-07 15:00:04.000000000 +0100 That seems to have done the trick. Normally, I get the "bad page" errors on the second NX session, but I'm on the third session of the day (thus far), and everything seems to be ok as far as I can tell. -- ----------------------------------------------------------------------- Bob Tracy | "Eagles may soar, but weasels don't get rct@xxxxxxxx | sucked into jet engines." --Anon ----------------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-alpha" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
