Index: linux-2.6.23.14/arch/arm/common/dmabounce.c =================================================================== --- linux-2.6.23.14.orig/arch/arm/common/dmabounce.c 2008-01-24 22:03:28.475500801 +0100 +++ linux-2.6.23.14/arch/arm/common/dmabounce.c 2008-01-24 22:17:36.415822168 +0100 @@ -116,6 +116,10 @@ } else if (size <= device_info->large.size) { pool = &device_info->large; } else { +#ifdef CONFIG_DMABOUNCE_DEBUG + printk(KERN_INFO "A dma bounce buffer outside the pool size was requested. Requested size was 0x%08X\nThe calling code was :\n", size); + dump_stack(); +#endif pool = NULL; } Index: linux-2.6.23.14/arch/arm/mach-ixp4xx/Kconfig =================================================================== --- linux-2.6.23.14.orig/arch/arm/mach-ixp4xx/Kconfig 2008-01-24 22:10:29.331484012 +0100 +++ linux-2.6.23.14/arch/arm/mach-ixp4xx/Kconfig 2008-01-24 22:11:42.891675973 +0100 @@ -220,6 +220,11 @@ default y depends on PCI +config DMABOUNCE_DEBUG + bool "Enable DMABounce debuging" + default n + depends on DMABOUNCE + config IXP4XX_INDIRECT_PCI bool "Use indirect PCI memory access" depends on PCI