1. 25 Mar, 2007 22 commits
  2. 24 Mar, 2007 17 commits
  3. 20 Mar, 2007 1 commit
    • Ed Swierk's avatar
      load_module: no BUG if module_subsys uninitialized · de37843b
      Ed Swierk authored
      Invoking load_module() before param_sysfs_init() is called crashes in
      mod_sysfs_setup(), since the kset in module_subsys is not initialized yet.
      
      In my case, net-pf-1 is getting modprobed as a result of hotplug trying to
      create a UNIX socket.  Calls to hotplug begin after the topology_init
      initcall.
      
      Another patch for the same symptom (module_subsys-initialize-earlier.patch)
      moves param_sysfs_init() to the subsys initcalls, but this is still not
      early enough in the boot process in some cases.  In particular,
      topology_init() causes /sbin/hotplug to run, which requests net-pf-1 (the
      UNIX socket protocol) which can be compiled as a module.  Moving
      param_sysfs_init() to the postcore initcalls fixes this particular race,
      but there might well be other cases where a usermodehelper causes a module
      to load earlier still.
      
      The patch makes load_module() return an error rather than crashing the
      kernel if invoked before module_subsys is initialized.
      Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
      de37843b