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Message-ID: <20071118161727.106e7eea@laptopd505.fenrus.org> Date: Sun, 18 Nov 2007 16:17:27 -0800 From: Arjan van de Ven <arjan@...radead.org> To: Larry Finger <Larry.Finger@...inger.net> Cc: LKML <linux-kernel@...r.kernel.org>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: Regression in 2.6.24-rc3 - 64-bit DMA fails for BCM94311MCG rev 02 On Sun, 18 Nov 2007 18:04:51 -0600 Larry Finger <Larry.Finger@...inger.net> wrote: > I get a failure of 64-bit DMA on a BCM94311MCG rev 02 wireless > interface running on x86_64 using an AMD Turion 64 X2 processor on an > HP Pavilion dv2125nr laptop. The error code indicates that the > interface is getting a descriptor read error, even though the > descriptor ring and all the DMA buffers have been checked when > allocated. This particular card version is newly supported; however, > it was working correctly on 2.6.24-rc2. > worth adding a pci_set_dma_mask(pdev, DMA_32BIT_MASK); in the driver, just after pci_enable_device(); (also check if there's other pci_set_dma_mask functions, to make sure it doesn't get set back to 64 bit) -- If you want to reach me at my work email, use arjan@...ux.intel.com For development, discussion and tips for power savings, visit http://www.lesswatts.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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