Re: [Valgrind-developers] drd 2006-12-30

[Nicholas N. <nj...@cs...>]

On Sat, 30 Dec 2006, Bart Van Assche wrote:

> A new drd version is available at
> http://home.euphonynet.be/bvassche/valgrind/valgrind-6458-drd-2006-12-30.patch.gz.
>
> * attempted to write a suppression file that suppresses some data races
> present in ld.so / libc / libstd++ / libpthread (drd/default.supp). I
> learned that suppressing data races by callstack probably won't be too
> coarse for the drd tool: several call stacks have to be included for
> accesses to the same location, and the danger exists that some of these call
> stacks suppress data races that should be reported to the user.

Did you mean "probably will be too coarse"?

> Summarized: although one important algorithm change is still needed (segment
> merging), the tool is already useful for finding out which data races
> happened and why. But it will be a challenge to suppress all intended data
> races (in ld.so, glibc, libstdc++ and libpthread.so).

Good!  I think data race detectors generally have a lower signal-to-noise 
ratio than eg. Memcheck, but it seems people will still be interested.

Nick