Getting rid of alignment faults in userspace

Arnd Bergmann arnd at arndb.de
Sat Jun 18 07:55:31 UTC 2011


On Friday 17 June 2011, Nicolas Pitre wrote:
> On Fri, 17 Jun 2011, Arnd Bergmann wrote:
> > On Friday 17 June 2011 14:10:11 Dave Martin wrote:
> > 
> > > As part of the general effort to make open source on ARM better, I think 
> > > it would be great if we can disable the alignment fixups (or at least
> > > enable logging) and work with upstreams to get the affected packages
> > > fixed.

> The only effective rate limiting configuration I would recommend is to 
> SIGBUS misaligned accesses by default.  And that's also supported 
> already with the right flag.
> 

So should we change the default in the prerelease kernels to enable SIGBUS?
The immediate result of that would be to break firefox, which would
cause a lot of questions on the mailing list.

	Arnd



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