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List:       fedora-test-list
Subject:    Re: Are non-sse2 CPUs officially dead on F29?
From:       Sérgio Basto <sergio () serjux ! com>
Date:       2018-10-05 18:38:05
Message-ID: 1538764685.9885.38.camel () serjux ! com
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On Wed, 2018-09-19 at 23:51 -0400, Felix Miata wrote:
> Sérgio Basto composed on 2018-09-20 04:39 (UTC+0100):
> 
> > On Wed, 2018-09-19 at 22:50 -0400, Felix Miata wrote:
> > > Non-sse2 
> > what is your non-sse2 [1] ? Pentium 3 (Produced
> > from early 1999 to 2003) ? or pentium 2 ? 
> > In July of 2016 , we talked about enable or disable sse2
> > capabalities on i686 for x264 [2] 
> > On Tuesday, 26 July kwizart test it on KVM guest with pentium 2 cpu
> > emulated , you may read in thread in Pentium 3 code works
> > an in pentium 2 code doesn't work but also doesn't crash  
> > I vote in enable sse2 , and not support Pentium 2 or 3 , why not
> > but an non-sse2 kernel in a copr repo for example ? .
> 
> processor	: 0
> vendor_id	: AuthenticAMD
> cpu family	: 6
> model		: 8
> model name	: AMD Sempron(tm)  2800+
> stepping	: 1
> cpu MHz		: 1996.334
> cache size	: 256 KB
> fdiv_bug	: no
> hlt_bug		: no
> f00f_bug	: no
> coma_bug	: no
> fpu		: yes
> fpu_exception	: yes
> cpuid level	: 1
> wp		: yes
> flags		: fpu vme de pse tsc msr pae mce cx8 apic sep
> mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext
> 3dnow up
> bogomips	: 3992.66
> clflush size	: 32
> cache_alignment	: 32
> address sizes	: 34 bits physical, 32 bits virtual
> power management: ts
> 
> PC hard locked up after just past halfway done, so I gave up trying.

yeah , you may have one of last cpu that not support SSE2 [1], it was
released on about August/September of 2004 . 
Now IMO, enable SSE2 is correct, because the big majority of i686
computers (now a days) have SSE2 and they benefit a lot with it, on
other hand your computer is not on default , so you may build an non-
default kernel disabling SSE2 . 

Best regards

[1]
https://en.wikipedia.org/wiki/List_of_AMD_Sempron_microprocessors#%22Thorton%22_(Socket_A,_130_nm,_Model_10)



> -- 
> "Wisdom is supreme; therefore get wisdom. Whatever else you
> get, get wisdom." Proverbs 4:7 (New Living Translation)
> 
> Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
> 
> Felix Miata  ***  http://fm.no-ip.com/
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-- 
Sérgio M. B.
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