linux-kernel - Re: PANIC with linux-next-2.6.26-next-20080718

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Message-ID: <20080721132027.GD28946@ZenIV.linux.org.uk>
Date:	Mon, 21 Jul 2008 14:20:27 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Tej Parkash <bewith.tej@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: PANIC with linux-next-2.6.26-next-20080718

On Mon, Jul 21, 2008 at 04:18:35PM +0530, Tej Parkash wrote:
> while testing linux-next with commit
> "commit 43a2c1df777e18dfb0ba48d03b4f8b8ff80f1b57"
> Author: Stephen Rothwell <sfr@...b.auug.org.au>
> Date:   Fri Jul 18 19:27:47 2008 +1000
> 
> machine hang with the following panic. config/cpuinfo/lspci are attached.
> trying git-bisect.

Apply the patch below or try the current linux-next where vfs-next is
rebased on top of net-next with that sucker folded in.

diff --git a/net/sysctl_net.c b/net/sysctl_net.c
index b91a5de..2240a9e 100644
--- a/net/sysctl_net.c
+++ b/net/sysctl_net.c
@@ -44,13 +44,6 @@ static struct ctl_table_root net_sysctl_root = {
 	.lookup = net_ctl_header_lookup,
 };
 
-static LIST_HEAD(net_sysctl_ro_tables);
-static struct list_head *net_ctl_ro_header_lookup(struct ctl_table_root *root,
-		struct nsproxy *namespaces)
-{
-	return &net_sysctl_ro_tables;
-}
-
 static int net_ctl_ro_header_perms(struct ctl_table_root *root,
 		struct nsproxy *namespaces, struct ctl_table *table)
 {
@@ -61,7 +54,6 @@ static int net_ctl_ro_header_perms(struct ctl_table_root *root,
 }
 
 static struct ctl_table_root net_sysctl_ro_root = {
-	.lookup = net_ctl_ro_header_lookup,
 	.permissions = net_ctl_ro_header_perms,
 };
 
@@ -89,6 +81,7 @@ static __init int sysctl_init(void)
 	if (ret)
 		goto out;
 	register_sysctl_root(&net_sysctl_root);
+	setup_sysctl_set(&net_sysctl_ro_root.default_set, NULL, NULL);
 	register_sysctl_root(&net_sysctl_ro_root);
 out:
 	return ret;

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