Re: A strange thing with yesterday's head..

On Mon, Feb 1, 2010 at 4:04 PM, Giovanni Trematerra
<giovanni.trematerra_at_gmail.com> wrote:
> On Fri, Jan 29, 2010 at 9:12 PM, Brandon Gooch
> <jamesbrandongooch_at_gmail.com> wrote:
>> On Fri, Jan 29, 2010 at 3:44 PM, Giovanni Trematerra
>> <giovanni.trematerra_at_gmail.com> wrote:
>>> On Thu, Jan 28, 2010 at 10:55 PM, Randall Stewart <rrs_at_lakerest.net> wrote:
>>>> I was running SCHED_ULE on an 8.0 and everything works
>>>> fine.
>>>>
>>>> On my 2 core head of yesterday I tried both SCHED_ULE AND
>>>> 4BSD.. and got the same results ;-0
>>>>
>>>> I will try my 4 core when I get home ;-)
>>>>
>>>> R
>>>> On Jan 28, 2010, at 11:15 AM, Gary Jennejohn wrote:
>>>>
>>>>> On Thu, 28 Jan 2010 10:30:37 -0800
>>>>> Randall Stewart <rrs_at_lakerest.net> wrote:
>>>>>
>>>>>> All:
>>>>>>
>>>>>> I just found a very strange thing with yesterdays head.
>>>>>>
>>>>>> The program
>>>>>>
>>>>>> http://www.freebsd.org/~rrs/my_thr.c
>>>>>>
>>>>>> I compile it:
>>>>>>
>>>>>> cc -g -o my_thr my_thr.c /usr/lib/libthr.a -lpthread
>>>>>>
>>>
>>> Hi Randal,
>>> I tried your code on an 8-core machine with a fresh head (i386)
>>> I have no problems with both 4BSD and ULE scheduler.
>>> I even upping the value of macro NUM_THREAD to 24 but I didn't notice
>>> nothing strange.
>>>
>>> Have you got a chance to reproduce it on your machines?
>>>
>>> --
>>> Gianni
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>>>
>>
>> I ran it on my dual-core, 8-STABLE/ULE laptop. The very first time I
>> ran it, I experienced the temporary "seizure". It took several more
>> runs before I could get it to happen again.
>>
>
> Hi Brandon,
> which kind of processor your laptop has? AMD or Intel?
> --
> Gianni
>

CPU: Intel(R) Core(TM)2 Duo CPU     L7100  _at_ 1.20GHz (1197.01-MHz K8-class CPU)
  Origin = "GenuineIntel"  Id = 0x6fb  Stepping = 11
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0xe3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
  AMD Features=0x20100800<SYSCALL,NX,LM>
  AMD Features2=0x1<LAHF>
  TSC: P-state invariant

-Brandon