On Sun, Aug 05, Stefan Richter wrote:
> Benjamin Herrenschmidt wrote:
> >>> If setting 32-bit DMA mask fails on ppc64, that sounds like a problem
> >>> with the DMA implementation on that architecture. There are enough cards
> >>> out there that only support 32-bit DMA that this really needs to work..
> >> Yes, could the PPC folks please have a look at it? Thanks.
> >
> > Smells like we may have a bug there. No worries though, all current PPC
> > machines have an iommu that will not give out addresses above 32 bits
> > anyway, but I'll double check what's up.
> >
> > Do you see something in dmesg when that happens ?
>
> There was nothing in Olaf's report, except for trouble in sbp2 _after_
> the failure. http://lkml.org/lkml/2007/8/1/344 (I don't have a PMac.)
sbp2util_remove_command_orb_pool() does not check for lu->hi being NULL.
dev->dma_mask is NULL too, thats why dma_direct_dma_supported() returns
false, and dma_set_mask() will return -EIO.
-
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
