Bugzilla – Bug 14940
R.bin segmentation fault when byte-compiling package 'base' during compilation with gcc 4.7
Last modified: 2012-06-07 14:10:12 UTC
R.bin segmentation fault when byte-compiling package 'base' during compilation with gcc 4.7 with flag -O3 on Gentoo Linux
1. Download sources of R-2.15.0
2. Compile it with gcc 4.7 with -O3 flag
R.bin segfault when byte-compiling package 'base'.
Build 2012-06-07 on Gentoo Linux
gcc version: 4.7.0
CFLAGS="-O3 -march=native -mtune=native -fomit-frame-pointer -pipe"
computer: i686 Intel(R) Atom(TM) CPU N280 @ 1.66GHz GenuineIntel GNU/Linux
Original bug on Gentoo's Bugzilla: https://bugs.gentoo.org/show_bug.cgi?id=419761
Created attachment 1312 [details]
I'm sorry for possible abusing of R's bugzilla, but what is wrong with this bug, so it is invalid?
I've read R's bug howto and reported it according to rules stated there. I just want to know what's wrong to avoid posting invalid bug reports in the future.
Or R just doesn't support -O3 optimization flag?
Thanks for answer.
The bug isn't in R, so nothing we can fix.
There's nothing particularly wrong with reporting it and having an answer in the bug database, I'd say. The "invalid" category just fits better than "wontfix" or "spam". Perhaps we should consider a "not-our-bug" category.
On 07/06/2012 13:37, email@example.com wrote:
> --- Comment #2 from Jauhien Piatlicki<firstname.lastname@example.org> 2012-06-07 08:37:05 EDT ---
> I'm sorry for possible abusing of R's bugzilla, but what is wrong with this
> bug, so it is invalid?
> I've read R's bug howto and reported it according to rules stated there. I just
> want to know what's wrong to avoid posting invalid bug reports in the future.
> Or R just doesn't support -O3 optimization flag?
> Thanks for answer.
There is no evidence that the bug is in R. And we happen to be aware
that for x86_64 Linux, the bug is in gcc.
Maybe 10 times in the gcc4 series, gcc -O3 bugs have caused R builds to
fail, so we are not likely to believe that this time the bug is in R
without very detailed evidence (and we will still say use the
Brian D. Ripley, email@example.com
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595