rr 4.5.0 released

Sidharth Kshatriya sid.kshatriya at gmail.com
Mon Feb 6 05:12:36 UTC 2017

Generally speaking I've found that DynamoRio can be quite crash-y in Linux.
Complex applications e.g. Firefox do not seem to work with it for instance.
What has your experience been?

Does using this new (currently closed source) tool help in any way with the
stability of DynamoRio or makes no difference? I'm guessing it makes no
difference but just asking...



On Feb 4, 2017 4:11 PM, "Robert O'Callahan" <robert at ocallahan.org> wrote:

> On Sat, Feb 4, 2017 at 11:25 PM, Sidharth Kshatriya
> <sid.kshatriya at gmail.com> wrote:
> > Can you tell us about the extent of go support?
> I don't think it's really been tested. Some simple Go programs work. I
> would expect large ones to work too, but they might hit some new bugs.
> > Also intrigued about the integration with DynamoRio. What ability or
> > features will the integration allow?
> Basically you can do the same things that Valgrind and DynamoRio can
> do, but you record normally and then do the instrumentation work
> during replay. So you could for example build a memcheck tool where
> you record with rr's normal (hopefully low) overhead and then later
> run your tool on a replay of that execution. There's a system like
> this for QEMU called PANDA, but this is lower overhead and for rr.
> Rob
> --
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