Re: Bug#342545: qt-x11-free FTBFS
On Wed, Aug 23, 2006 at 10:39:04AM +0200, Matthias Klose wrote:
> The qt-x11-free package builds fine with a standard Debian setup.
> Building with prctl --unaligned=signal makes the "bug" reproducible.
Right. The buildd is set up to deliver SIGBUS on unaligned accesses.
This is configurable, and not the default kernel behaviour. It is,
however, a Good Thing(tm). Unaligned accesses are quite costly, so
catching and fixing them on the buildd is ideal. However, in most cases
they are nontrivial to fix and should be rebuilt and uploaded and a
bug filed with upstream...
When I initially added prctl for parisc, iirc there were three options
logging an unaligned access, delivering a SIGBUS, or silently catching
it and continuing on.
I have a machine that can be used to do these rebuilds, if need be.