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iceweasel issues (update)

On Mon, Feb 27, 2012 at 05:33:34PM +1300, Michael Cree wrote:
> On 27/02/2012, at 5:13 PM, Bob Tracy wrote:
> >On Sun, Feb 26, 2012 at 02:30:16PM +1300, Michael Cree wrote:
> >>I've also just upgraded to iceweasel 10.0.2-1+alpha and have it  
> >>running
> >>on the xfce4 desktop. It worked for a while reading a few web  
> >>pages, but
> >>has now locked up and it using whatever spare CPU it can take.  I can
> >>still use the desktop ok---just a little bit sluggish.
> >>
> >>Yep, there's a problem alright.
> >
> >Just completed monolithic build of 10.0.2 with optimization: same
> >behavior as iceweasel-10.0.2-1.  I'll try a build with optimization
> >disabled.  Did you get anywhere with the debugger?
> Um, yes, I did try it and it always came down to being in one routine,  
> but can't remember what it was.  Will post later when I can switch on  
> the Alpha.
> I am hoping that optimisation makes no difference now.  We are no  
> longer subjected to the nasty optimisation bug in gcc-4.4 and I've  
> just got another optimisation bug introduced in gcc-4.6 fixed.

A few moons later, we've got an updated lower bound (release that
works): 9.0.1.  Built it with optimization, and it works fine -- no
lockups.  The first release version that *doesn't* work is 10.0, so
we're closing in on the problem.  All releases >= 10.0 are currently
broken on Alpha.

As far as optimization vs. no optimization, the only difference I
currently note is that the old "nsThreadUtils*" patches are required to
get a non-optimized build to succeed.  I have no explanation for this,
but without those patches, a non-optimized build will fail.  To say the
least, this is bothersome...


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