Hi Rusty, The below rendered modules unloadable, and my bog standard opensuse 11.0 x86_64 box became a doorstop. module-init-tools version 3.4, config attached. (nobody else has griped yet and it's already 11:08. hm) commit 9cb610d8e35fe3ec95a2fe2030b02f85aeea83c1 Author: Rusty Russell Date: Tue Mar 31 13:05:33 2009 -0600 module: remove the SHF_ALLOC flag on the __versions section. Impact: reduce kernel memory usage This patch just takes off the SHF_ALLOC flag on __versions so we don't keep them around after module load. This saves about 7% of module memory if CONFIG_MODVERSIONS=y. Cc: Shawn Bohrer Signed-off-by: Rusty Russell diff --git a/kernel/module.c b/kernel/module.c index 599fc85..784bf6d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1961,6 +1961,9 @@ static noinline struct module *load_module(void __user *umod, if (strncmp(secstrings+sechdrs[i].sh_name, ".exit", 5) == 0) sechdrs[i].sh_flags &= ~(unsigned long)SHF_ALLOC; #endif + /* Don't keep __versions around; it's just for loading. */ + if (strcmp(secstrings + sechdrs[i].sh_name, "__versions") == 0) + sechdrs[i].sh_flags &= ~(unsigned long)SHF_ALLOC; } modindex = find_sec(hdr, sechdrs, secstrings,