Index: linux-2.6.25.1/arch/arm/common/dmabounce.c =================================================================== --- linux-2.6.25.1.orig/arch/arm/common/dmabounce.c +++ linux-2.6.25.1/arch/arm/common/dmabounce.c @@ -117,6 +117,10 @@ alloc_safe_buffer(struct dmabounce_devic } 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-2.6.25.1/arch/arm/mach-ixp4xx/Kconfig =================================================================== --- linux-2.6.25.1.orig/arch/arm/mach-ixp4xx/Kconfig +++ linux-2.6.25.1/arch/arm/mach-ixp4xx/Kconfig @@ -236,6 +236,11 @@ config DMABOUNCE 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