If you try to apply the pom patches to a Red Hat Linux Kernel 2.4.18-x, you get an error applying the first cumulative patch "submitted/02_2.4.20". I found that this happens because of a mistake in the submitted/02_2.4.20.patch file of the pom archive. This patch file includes the differences from each original kernel source file and the patched one. It's all correct but at line #4548, when patching the net/ipv4/netfilter/ipchains_core.c file there's a mistake; the patch about the MODULE_LICENSE string seems to be already applied. So to apply the submitted/02_2.4.20 patch cleanly to a RH kernel source tree, the 6 lines starting at line #4548 in the patch-o-matic submitted/02_2.4.20.patch file must be deleted. Iok