Re: [RFC] [PATCH 1/7] User Space Breakpoint Assistance Layer (UBP)

2010-01-18 Thread Pekka Enberg
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

Re: [RFC] [PATCH 1/7] User Space Breakpoint Assistance Layer (UBP)

2010-01-18 Thread Pekka Enberg
On Mon, Jan 18, 2010 at 2:44 PM, Srikar Dronamraju sri...@linux.vnet.ibm.com wrote: * Avi Kivity a...@redhat.com [2010-01-18 14:17:10]: On 01/18/2010 02:13 PM, Pekka Enberg wrote: So how big chunks of the address space are we talking here for uprobes? That's for the authors to answer

Re: [RFC] [PATCH 1/7] User Space Breakpoint Assistance Layer (UBP)

2010-01-18 Thread Pekka Enberg
On 01/18/2010 02:51 PM, Pekka Enberg wrote: And how many probes do we expected to be live at the same time in real-world scenarios? I guess Avi's one million is more than enough? Avi Kivity kirjoitti: I don't think a user will ever come close to a million, but we can expect some inflation