Messages in this thread | | | Date | Sun, 05 Aug 2007 09:54:51 +0200 | From | Stefan Richter <> | Subject | Re: [PATCH 2.6.22.y] ieee1394: revert "sbp2: enforce 32bit DMA mapping" |
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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.) -- Stefan Richter -=====-=-=== =--- --=-= http://arcgraph.de/sr/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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