Re: [coLinux-users] 0.7.2 less reliable on dual core?

[Henry N. <Hen...@Ar...>]

baldyeti wrote:
>> What is exactly the cpu model? "cat /proc/cpuinfo"
> 
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 15
> model name      : Intel(R) Pentium(R) Dual  CPU  E2180  @ 2.00GHz
> stepping        : 13
> cpu MHz         : 2000.000
> cache size      : 1024 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 10
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca 
> cmov pat
> pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc 
> pni mon
> itor ds_cpl est tm2 ssse3 cx16 xtpr lahf_lm
> bogomips        : 4731.69
> clflush size    : 64
> 
> There is no overclocking applied, all default BIOS settings.
> The machine has been very stable so far under XP.

Yes, of curse. But, perhaps windows does some special workarrounts to
fix the buggy cache on your cpu?

Intel P4 and Xeon was old candidate for problems with caching long time
ago. Has Intel a new buggy chipset now? An idea only.

I found inside Linux kernel:
arch/i386/kernel/cpu/intel.c:31
void __cpuinit early_intel_workaround(struct cpuinfo_x86 *c)
{
        if (c->x86_vendor != X86_VENDOR_INTEL)
                return;
        /* Netburst reports 64 bytes clflush size, but does IO in 128
bytes */
        if (c->x86 == 15 && c->x86_cache_alignment == 64)
                c->x86_cache_alignment = 128;
}

This is exactly your CPU, I'm afraid. You have model: 15 and clflush
size 64. But, I not know how it is interesting for coLinux.

-- 
Henry N.