linux-kernel - Re: [PATCH 2/2] selftests: New x86 breakpoints selftest

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:	Mon, 12 Dec 2011 11:36:11 +0530
From:	"K.Prasad" <prasad@...ux.vnet.ibm.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Jason Wessel <jason.wessel@...driver.com>,
	Will Deacon <will.deacon@....com>
Subject: Re: [PATCH 2/2] selftests: New x86 breakpoints selftest

On Fri, Dec 02, 2011 at 04:41:15PM +0100, Frederic Weisbecker wrote:
> Bring a first selftest in the relevant directory. This tests
> several combinations of breakpoints and watchpoints in x86, as
> well as icebp traps and int3 traps. Given the amount of breakpoint
> regressions we raised after we merged the generic breakpoint
> infrastructure, such selftest became necessary and can still serve
> today as a basis for new patches that touch the do_debug() path.
> 


Hi Frederic,
	Can we also including testing of watchpoints over kernel variables?
We could do this using the perf syscall or (in a convoluted way) use a
kernel module that works in tandem with this user-space testcase.

Thanks,
K.Prasad

--
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/