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Re: [Ksummit-2008-discuss] DTrace
Hi -
On Tue, Jul 01, 2008 at 07:13:27PM -0400, Theodore Tso wrote:
> On Tue, Jul 01, 2008 at 01:06:32PM -0700, Roland McGrath wrote:
> > Like I said, the essential command is eu-strip -f. It is simple to use.
> >
> > For one's own local hacking purposes, there is no real reason to bother
> > with strip-to-file complexities. You can just copy the unstripped files
> > before stripping them. [...]
> Well, actually, it *does* matter, at least to me. [...] I might
> have five, six, seven, eight or more kernels installed. And on a
> number of my systems, the amount of space on the parititons where
> /boot and /lib live can't take the space demands of compiling the
> kernel and modules with -g.
You simply misunderstood Roland's suggestion: that you save the
unstripped copies of vmlinux etc. someplace - anyplace - for
systemtap's use, and that you strip (as normal) the pieces that go
into /boot. No one is asking you to enlarge your boot partition.
> [...] And one of the major flaws of the Linux's RAS tools is that
> the LKML development community doesn't use them; and to the extent
> that tapsets would be written more quickly if they are easy for
> kernel developers [...]
Point taken (and applies broadly to all the other RAS tools).
> In the past two years, I've on average tried Systemtap every 9
> months or so, and each time, I'd hit a different annoying roadblock,
> and then I was so busy I would move on to a more productive way of
> solving my problems. [...]
Hearing about your problems at the time could well have steered us
toward focusing on their solution.
There has been a bit of a vicious circle in play: apparent lack of
interest from the LKML community drives focus toward on customery
problem areas, which then apparently disappoints (members of) the LKML
community into more disinterst. Let's break this.
- FChE