On Tue, 2011-01-18 at 16:48 -0800, Nishanth Aravamudan wrote: > > Ben, if you're ok with waiting to see if Milton or Sonny have any > ideas, > I'd like to hold off on asking for a revert. In the case they do, I'll > be able to test and send out any proposed fix rapidly.
I don't believe this specific error is causing the lockup, I think we only hit a spurrious message on devices that don't have DMA capabilities in the first place. (But I may be wrong, I'll wait for you guys to dig more or I'll have a look myself tomorrow if I manage to get out of meetings). So there's another problem with SCSI tho it -could- also be a DMA issue, hard to tell at this point. BTW. I'm not too happy with those defaults set to 64-bit. Probably not an issue until your other patches go in, but some devices like veth cannot do 64-bit DMA. I think we should default to 32-bit in the VIO base code and explicitely enable 64-bit DMA from drivers that support it (in theory vscsi but I haven't verified the implementation). Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list [email protected] https://lists.ozlabs.org/listinfo/linuxppc-dev
