linux-kernel - Re: [RFC] [PATCH 4/7] Uprobes Implementation

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: <20100115110547.GB3660@in.ibm.com>
Date:	Fri, 15 Jan 2010 16:35:47 +0530
From:	Maneesh Soni <maneesh@...ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Jim Keniston <jkenisto@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	utrace-devel <utrace-devel@...hat.com>,
	Mark Wielaard <mjw@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] [PATCH 4/7] Uprobes Implementation

On Fri, Jan 15, 2010 at 11:33:27AM +0100, Peter Zijlstra wrote:
> On Fri, 2010-01-15 at 15:56 +0530, Srikar Dronamraju wrote:
> > Hi Peter, 
> > 
> > Or there could be two threads that could be racing to
> > insert/delete a breakpoint. These synchronization issues are all handled
> > by the Uprobes layer.
> 
> Shouldn't be hard to put that in the ubp layer, right?
> 
> > Uprobes layer would need to be notified of process life-time events
> > like fork/clone/exec/exit. 
> 
> No so much the process lifetimes as the vma life times are interesting,
> placing a hook in the vm code to track that isn't too hard, 
> 

I think similar hooks were given thumbs down in the previous incarnation
of uprobes (which was implemented without utrace).  

http://lkml.indiana.edu/hypermail/linux/kernel/0603.2/1254.html

Thanks
Maneesh

-- 
Maneesh Soni
Linux Technology Center
IBM India Systems and Technology Lab,
Bangalore, India.
--
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/