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

From: Avi Kivity
Date: Sun Jan 17 2010 - 09:56:44 EST

On 01/17/2010 04:52 PM, Peter Zijlstra wrote:
On Sun, 2010-01-17 at 16:39 +0200, Avi Kivity wrote:
On 01/15/2010 11:50 AM, Peter Zijlstra wrote:
As previously stated, I think poking at a process's address space is an
utter no-go.

Why not reserve an address space range for this, somewhere near the top
of memory? It doesn't have to be populated if it isn't used.
Because I think poking at a process's address space like that is gross.

If it's reserved, it's no longer the process' address space.

Also, if its fixed size you're imposing artificial limits on the number
of possible probes.

Obviously we'll need a limit, a uprobe will also take kernel memory, we can't allow people to exhaust it.

error compiling committee.c: too many arguments to function

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at