Control: severity -1 grave

On Sun, Oct 01, 2017 at 11:10:09PM +0200, Sylvestre Ledru wrote:
> severity 877445 wishlist
> thanks
> 
> Le 01/10/2017 à 22:54, Fanael Linithien a écrit :
> > Package: firefox
> > Version: 56.0-2
> > Severity: important
> >
> > Visiting certain sites such as github crashes with SIGILL on Pentium
> > III and other CPUs with no SSE2 support due to some parts of Firefox
> > code assuming SSE2 unconditionally. While the upstream doesn't support
> > pre-SSE2 processors anymore, my understanding is that the Debian
> > package does, and therefore it's a bug. AFAIU the fix shouldn't be too
> > invasive, because the upstream sources still pretty much *have to*,
> > and do, contain scalar fallbacks for non-x86 platforms.
> 
> First, I am not the maintainer of Firefox.
> 
> However, if I were, I would won't fix this bug. CPU without SSE2 are now
> rare
> and the performance drop for not using SSE2 being enough that it should
> remain enabled by default (AFAIK, this is done at build time, not at
> runtime).
>...

This bug has now also become a serious regression in stable hitting many 
users hard and requiring urgent fixing:
  https://bugs.debian.org/908396

It is irrelevant how frequent or rare CPUs without SSE2 are,
this is the baseline we are guaranteeing.

> Sylvestre

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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