I've googled around and found most people advocating the use of kmalloc, as you're guaranteed to get contiguous physical blocks of memory. However, it also seems as though kmalloc can fail if a con...

I'm using vmalloc_to_pfn() to get the physical address on a 32-bit PAE Linux system. It looks like vmalloc_to_pfn() returns "unsigned long" which means it is 32 bit on a 32 bit system, 64 bit on a ...

I have a quite big driver module that I am trying to compile for a recent Linux kernel (3.4.4). I can successfully compile and insmod the same module with a 2.6.27.25 kernel. GCC version are also d...

I have a problem loading a kernel module, there is a large data structure, around the size of 2Gb of memory - whether I preallocate the table (so that it shows in .bss when I do size -A module.ko o...