Bug 16471

Like described on this mailing list:

http://www.mail-archive.com/e1000-devel@lists.sourceforge.net/msg01135.html

the e1000 driver doesn't work on systems with 4 (or more) GB of RAM.

The following patch fixes this Problem for me, since ~1 year, by disabling allocation of ram beyound adresses of 4GB. As this wasn't fixed already in the kernel, I'm reporting this bug, in the hope that this patch or any better code modification would fix this bug in the stable kernel.

--- a/drivers/net/e1000/e1000_main.c    2010-07-26 21:39:42.448000000 +0200
+++ b/drivers/net/e1000/e1000_main.c    2010-07-26 21:41:01.268000000 +0200
@@ -826,10 +826,10 @@
        if (err)
                return err;
-       if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
+/*     if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
            !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
                pci_using_dac = 1;
-       } else {
+       } else*/ {
                err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
                if (err) {
                        err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));