Messages in this thread | | | Date | Tue, 12 Feb 2013 11:39:16 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [RFC][PATCH] tracing/syscalls: Have ia32 compat syscalls show raw format |
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On 02/12/2013 10:42 AM, Steven Rostedt wrote: > > And currently the output is just plain broken. This isn't a hack. You > should have seen my first attempt. Now THAT was a hack! My first attempt > was extremely intrusive, and required a lot of arch changes. But then I > realized it was too much, and found that I could do the same thing > pretty much completely contained within just the tracing code itself. > > I know you feel that the syscall tracing is broken/hack/whatever. But it > exists as of today, and yes, there's lots of users out there depending > on it. >
I am getting extremely frustrated with this cycle:
1. "We should have done <X> but we did <Y> because <X> was too hard/required arch changes/..." 2. "Well, <Y> is broken, but people rely on it. We should have done <X> but now it is too hard/breaks legacy/... so let's do <Z>..." 3. Lather, rinse, repeat.
The whole system with trace metadata seems to be broken at the core, *exactly* because it intercepts at a different place than the one which has a well-defined ABI and every hack, kluge and patch which doesn't fix that fundamental design error will just make it worse and just kicks the can further down the road.
-hpa
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