| Message ID | 87sjwr4djd.fsf@elegiac.orebokech.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Romain Francoise <romain@orebokech.com> Date: Mon, 17 Jan 2011 18:59:18 +0100 > When a network namespace is created (via CLONE_NEWNET), the loopback > interface is automatically added to the new namespace, triggering a > printk in ipv6_add_dev() if CONFIG_IPV6_PRIVACY is set. > > This is problematic for applications which use CLONE_NEWNET as > part of a sandbox, like Chromium's suid sandbox or recent versions of > vsftpd. On a busy machine, it can lead to thousands of useless > "lo: Disabled Privacy Extensions" messages appearing in dmesg. > > It's easy enough to check the status of privacy extensions via the > use_tempaddr sysctl, so just removing the printk seems like the most > sensible solution. > > Signed-off-by: Romain Francoise <romain@orebokech.com> Yes, this message always bugged me too, applied thanks! -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 5b189c9..24a1cf1 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -420,9 +420,6 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) dev->type == ARPHRD_TUNNEL6 || dev->type == ARPHRD_SIT || dev->type == ARPHRD_NONE) { - printk(KERN_INFO - "%s: Disabled Privacy Extensions\n", - dev->name); ndev->cnf.use_tempaddr = -1; } else { in6_dev_hold(ndev);
When a network namespace is created (via CLONE_NEWNET), the loopback interface is automatically added to the new namespace, triggering a printk in ipv6_add_dev() if CONFIG_IPV6_PRIVACY is set. This is problematic for applications which use CLONE_NEWNET as part of a sandbox, like Chromium's suid sandbox or recent versions of vsftpd. On a busy machine, it can lead to thousands of useless "lo: Disabled Privacy Extensions" messages appearing in dmesg. It's easy enough to check the status of privacy extensions via the use_tempaddr sysctl, so just removing the printk seems like the most sensible solution. Signed-off-by: Romain Francoise <romain@orebokech.com> --- net/ipv6/addrconf.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-)