linux-kernel - Re: [PATCH v4 1/2] locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20180329013224.tfryvl6lv5i72jwm@linux-n805>
Date:   Wed, 28 Mar 2018 18:32:24 -0700
From:   Davidlohr Bueso <dave@...olabs.net>
To:     Waiman Long <longman@...hat.com>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] locking/rwsem: Add DEBUG_RWSEMS to look for
 lock/unlock mismatches

On Wed, 28 Mar 2018, Waiman Long wrote:

>+config DEBUG_RWSEMS
>+	bool "RW Semaphore debugging: basic checks"
>+	depends on DEBUG_KERNEL && RWSEM_SPIN_ON_OWNER

Why depend on RWSEM_SPIN_ON_OWNER? Doesn't everyone benefit from this?
For example, DEBUG_MUTEXES does not need it.

Thanks,
Davidlohr