linux-kernel - Re: [RFC] [PATCH 0/2] Futex fault injection

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:	Tue, 01 Dec 2009 11:54:43 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Sripathi Kodi <sripathik@...ibm.com>,
	Fr??d??ric Weisbecker <fweisbec@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org, Darren Hart <dvhltc@...ibm.com>
Subject: Re: [RFC] [PATCH 0/2] Futex fault injection

On Tue, 2009-12-01 at 11:33 +0100, Ingo Molnar wrote:
> * Sripathi Kodi <sripathik@...ibm.com> wrote:
> 
> > Hi,
> > 
> > This patch set adds fault injection for futex subsystem. It adds 
> > faults at places where reading/writing from user space can return 
> > EFAULT. This will be useful in testing any significant change to futex 
> > subsystem.
> 
> Instead of this unacceptably ugly and special-purpose debugfs interface, 
> please extend perf events to allow event injection. Some other places in 
> the kernel (which deal with rare events) want/need this capability too.

Thing is, he's using the 'normal' fault injection code to do this, I see
no objection to doing that.

If you want to redo the fault injection subsystem, then that's another
story, but then we need to convert all of its users over.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/