See what I've found: http://www.kernel.org/pub/linux/kernel/people//akpm/patches/2.6/2.6.6-rc3/2.6.6-rc3-mm2/broken-out/proc-sys-kernel-vermagic.patch On Tue, Oct 16, 2012 at 5:06 PM, Robert P. J. Day <rpjday@xxxxxxxxxxxxxx> wrote: > On Tue, 16 Oct 2012, Chinmay V S wrote: > >> Isn't "uname -r" on the console good enough?... > > no, the vermagic string is considerably more informative. as i > mentioned, look at the definition in vermagic.h: > > #define VERMAGIC_STRING \ > UTS_RELEASE " " \ > MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ > MODULE_VERMAGIC_MODULE_UNLOAD MODULE_VERMAGIC_MODVERSIONS \ > MODULE_ARCH_VERMAGIC > > that should (partially?) match the "vermagic" string you see with > modinfo, as in: > > $ modinfo vfat > ... snip ... > vermagic: 3.6.0-oct8+ SMP mod_unload modversions <--- there! > $ > > if you check the logic of module loading in kernel/module.c, you'll > see checks being made to see if the two strings are compatible, as in: > > ... snip ... > static const char vermagic[] = VERMAGIC_STRING; > ... snip ... > static int check_modinfo(struct module *mod, struct load_info *info) > { > const char *modmagic = get_modinfo(info, "vermagic"); > int err; > > /* This is allowed: modprobe --force will invalidate it. */ > if (!modmagic) { > err = try_to_force_load(mod, "bad vermagic"); > if (err) > return err; > } else if (!same_magic(modmagic, vermagic, info->index.vers)) { > printk(KERN_ERR "%s: version magic '%s' should be '%s'\n", > mod->name, modmagic, vermagic); > return -ENOEXEC; > } > ... snip ... > > it's not that big a deal, but it would be informative to be able to > see the kernel's full vermagic string. > > rday > > > -- > > ======================================================================== > Robert P. J. Day Ottawa, Ontario, CANADA > http://crashcourse.ca > > Twitter: http://twitter.com/rpjday > LinkedIn: http://ca.linkedin.com/in/rpjday > ======================================================================== > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -- Peter _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
