netdev - Re: [PATCH net-next] vlan: Fix lockdep warning when vlan dev handle notification

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 07 Mar 2014 01:49:32 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	dingtianhong@...wei.com
Cc:	ben@...adent.org.uk, john.r.fastabend@...el.com, kaber@...sh.net,
	netdev@...r.kernel.org, f.fainelli@...il.com
Subject: Re: [PATCH net-next] vlan: Fix lockdep warning when vlan dev
 handle notification

From: Ding Tianhong <dingtianhong@...wei.com>
Date: Fri, 7 Mar 2014 09:55:25 +0800

> But I think if I vconfig add eth2.20.30 50, the warning would happen
> again, but till now I could not find any scene that use 3 vlan id on
> a virtual device, so I think it is not a problem.

My example was to show that you aren't really fixing the bug, but
rather are papering over it.

In that sense, it is a problem.

I also happen to disagree with your assertion that a 3 layered
VLAN is invalid, it is valid.  And if we allow the configuration
it shouldn't throw locking assertions.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html