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Date: Mon, 18 Jan 2010 14:13:25 +0200 From: Pekka Enberg <penberg@...helsinki.fi> To: Avi Kivity <avi@...hat.com> Cc: Peter Zijlstra <peterz@...radead.org>, ananth@...ibm.com, Jim Keniston <jkenisto@...ibm.com>, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>, Ingo Molnar <mingo@...e.hu>, Arnaldo Carvalho de Melo <acme@...radead.org>, utrace-devel <utrace-devel@...hat.com>, Frederic Weisbecker <fweisbec@...il.com>, Masami Hiramatsu <mhiramat@...hat.com>, Maneesh Soni <maneesh@...ibm.com>, Mark Wielaard <mjw@...hat.com>, LKML <linux-kernel@...r.kernel.org> Subject: Re: [RFC] [PATCH 1/7] User Space Breakpoint Assistance Layer (UBP) Hi Avi, On Mon, 2010-01-18 at 14:01 +0200, Avi Kivity wrote: >>> Maybe you place no value on uprobes. But people who debug userspace >>> likely will see a reason. On 01/18/2010 02:06 PM, Peter Zijlstra wrote: >> I do see value in uprobes, I just don't like it mucking about with the >> address space. Nor does it appear required. On Mon, Jan 18, 2010 at 2:09 PM, Avi Kivity <avi@...hat.com> wrote: > Well, the alternatives are very unappealing. Emulation and single-stepping > are going to be very slow compared to a couple of jumps. So how big chunks of the address space are we talking here for uprobes? -- 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/
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