An ALSA user has found a Xen bug where it fails to accept a 28 bit DMA
mask (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) fails:
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1907
Lee
* Lee Revell ([email protected]) wrote:
> An ALSA user has found a Xen bug where it fails to accept a 28 bit DMA
> mask (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
> pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) fails:
>
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1907
Likely swiotlb range is above the mask. I'd suggest to reporter to
file in the Fedora bugzilla under kernel-xen (with dmesg output).
thanks,
-chris