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From: Daniel J Blueman on 5 Jul 2010 04:40
When booting 2.6.35-rc3 on some different x86 boxes with DMA debugging
enabled, I've consistently seen it exhaust the allocated entries during
boot, giving 'DMA-API: debugging out of memory - disabling'.

Increase number of entries to allow DMA debugging again.

Signed-off-by: Daniel J Blueman <daniel.blueman(a)gmail.com>

diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 4b7e3d8..5ff7f12 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -53,7 +53,7 @@ struct device x86_dma_fallback_dev = {
EXPORT_SYMBOL(x86_dma_fallback_dev);

/* Number of entries preallocated for DMA-API debugging */
-#define PREALLOC_DMA_DEBUG_ENTRIES 32768
+#define PREALLOC_DMA_DEBUG_ENTRIES 65536

int dma_set_mask(struct device *dev, u64 mask)
{
--
Daniel J Blueman
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