Hi Christoph, Christoph Hellwig wrote: > On Fri, Aug 17, 2007 at 03:43:04PM -0400, Masami Hiramatsu wrote: >> This patch introduces architecture dependent kretprobe >> blacklists to prohibit users from inserting return >> probes on the function in which kprobes can be inserted >> but kretprobes can not. > > I don't like this at all. If people want to shoot themselves into > their own foot using kernel modules they have an unlimited number > of ways to do this, and even more with kprobes, so there's no point > in making it a little harder for some cases.
Would you mean that the kernel need not to check whether the probe point is safe or not? Actually, there are many ways to shoot themselves from kernel modules. Even so, IMHO, it is benefit for people that the kernel rejects at least those obviously (and known) dangerous operation. -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America) Inc. Software Solutions Division e-mail: [EMAIL PROTECTED], [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
