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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
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