Do not fail when /sys is not yet mounted #258442.

(Portage version: 2.2_rc23/cvs/Linux x86_64)

1 files changed, 50 insertions, 0 deletions

diff --git a/sys-apps/module-init-tools/files/module-init-tools-3.6-skip-sys-check.patch b/sys-apps/module-init-tools/files/module-init-tools-3.6-skip-sys-check.patch
new file mode 100644
index 000000000000..e965e25b48ff
--- /dev/null
+++ b/sys-apps/module-init-tools/files/module-init-tools-3.6-skip-sys-check.patch
@@ -0,0 +1,50 @@
+http://bugs.gentoo.org/258442
+
+From 1a55ee5297b883ea4b43cdf74ad890873ebe966c Mon Sep 17 00:00:00 2001
+From: Mike Frysinger <vapier@gentoo.org>
+Date: Fri, 13 Feb 2009 02:21:10 -0500
+Subject: [PATCH] modprobe: remove pointless /sys requirement
+
+When modprobe was converted from parsing /proc to parsing /sys, it was not
+a straight conversion.  Instead, a "sanity" check was added early on where
+modprobe would simply abort doing anything useful if /sys isn't mounted.
+Unfortunately, this makes modprobe fairly unusable.  Considering the
+kernel itself can invoke modprobe before userspace gets a chance to start
+the init process (and actually mount /sys), we end up with a chicken and
+egg issue.  Which gets even worse when the kernel keeps running modprobe
+over and over and the boot output fills up with:
+modprobe: FATAL: /sys is not mounted.
+modprobe: FATAL: /sys is not mounted.
+modprobe: FATAL: /sys is not mounted.
+modprobe: FATAL: /sys is not mounted.
+modprobe: FATAL: /sys is not mounted.
+modprobe: FATAL: /sys is not mounted.
+
+Since modprobe itself is already written to handle the case where it
+cannot figure out whether a given module is loaded (and so was able to run
+perfectly fine without /proc being mounted), the check is wholly useless.
+
+Signed-off-by: Mike Frysinger <vapier@gentoo.org>
+---
+ modprobe.c |    5 -----
+ 1 files changed, 0 insertions(+), 5 deletions(-)
+
+diff --git a/modprobe.c b/modprobe.c
+index 022004c..110204b 100644
+--- a/modprobe.c
++++ b/modprobe.c
+@@ -1522,11 +1522,6 @@ static void handle_module(const char *modname,
+ 			  const char *cmdline_opts,
+ 			  int flags)
+ {
+-	struct stat finfo;
+-
+-	if (stat("/sys/module", &finfo) < 0)
+-		fatal("/sys is not mounted.\n");
+-
+ 	if (list_empty(todo_list)) {
+ 		const char *command;
+ 
+-- 
+1.6.1.3
+