netdev - Re: [PATCH] net/802/mrp: fix lockdep splat

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]

Message-ID: <1368559307.4519.21.camel@edumazet-glaptop>
Date:	Tue, 14 May 2013 12:21:47 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	denys@...p.net.lb, amwang@...hat.com, david.ward@...mit.edu,
	hayeswang@...ltek.com, romieu@...zoreil.com, netdev@...r.kernel.org
Subject: Re: [PATCH] net/802/mrp: fix lockdep splat

On Tue, 2013-05-14 at 12:07 -0700, David Miller wrote:

> Can you double check that you really had Eric's patch applied?
> lockdep appears to be complaining about the same thing in your
> log dump, as if the patch was not really applied.
> 
> It's saying that app->lock can be taken from the join timer in
> softirq, but mrp_uninit_applicant() takes it without disabling
> softirqs.
> 
> Eric's patch explicitly fixes this, by making sure that spin_lock_bh()
> is used there.

I am going to test this myself, it seems quite simple.
I'll add a Tested-by: tag once done.

Thanks


--
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