Re: Bug#691576: GDB still broken with 3.11.10-1
2013/12/12 Ben Hutchings <ben@decadent.org.uk>:
> So far as I know, there is no longer any commercial development of
> Linux on Itanium. Some old 'enterprise' distributions might
> continue to be supported for a few years but mainline isn't
> supported.
It seems that Intel must provide hp with Itanium CPUs till 2017 [1][2].
With respect to this GDB problem, but also people having problem
booting Wheezy on some systems, does it mean that nobody at Intel
ensure that Linux still works fine with actual (and upcoming?) Itanium
CPUs?
Well, since hp is the major customer for Itanium CPUs, it's entirely
plausible after all that hp focuses on hp-ux and thus Intel doesn't
care about Linux on ia64.
> I heard from Will Deacon that gcc's code generation for ia64 has
> regressed in 4.6 or earlier and this may be responsible for some
> reported kernel bugs. He also though that reducing the
> optimisation level could help.
>
> I actually tried building the kernel like that, so you could try the
> packages in:
>
> http://people.debian.org/~benh/packages/wheezy-ia64-kernel-O1/
No, I didn't play with GCC optimization settings.
Was your O1-compiled kernel working fine?
Do you know if GCC regressions observed by Will Deacon are documented somewhere?
Émeric
[1] http://www.xbitlabs.com/news/cpu/display/20120201201109_HP_Paid_Intel_690_Million_to_Keep_Itanium_Alive_Court_Findings.html
[2] http://www.wired.com/wiredenterprise/2012/02/hp-itanium/
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