Messages in this thread | | | Subject | Re: [linux-dvb] Re: More than 2Gb problem (dvb related) ? | From | Jon Burgess <> | Date | Fri, 27 Apr 2007 23:37:26 +0100 |
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On Fri, 2007-04-27 at 18:06 -0400, Lee Revell wrote: > On 4/27/07, Jon Burgess <jburgess777@googlemail.com> wrote: > > Interesting - I see similar symptoms after upgrading my PC: > > * old PC was AMD Athlon 64 3000 w/ 2GB of RAM which had no issues > > * new PC is a Intel Core 2 Duo w/ 4GB of RAM and fails in the way you > > describe. > > Driver using an incorrect DMA mask? > > Lee
It does not set one explicitly and the docs suggest the default is 32bit. Adding an explicit "pci_set_dma_mask(dev->pci, DMA_24BIT_MASK)" does not seem to make a difference. Mind you, the driver builds its own S-G DMA table in saa7146_vmalloc_build_pgtable() and i'm not certain whether this might bypass this setting.
Jon
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