* My P3 runs at.... zero Mhz (bug rpt)
@ 2003-04-18 2:10 Jeff Garzik
2003-04-18 4:44 ` Jurriaan
2003-04-18 5:08 ` [patch] mach_countup() fix Andrew Morton
0 siblings, 2 replies; 7+ messages in thread
From: Jeff Garzik @ 2003-04-18 2:10 UTC (permalink / raw)
To: LKML
Just booted into 2.5.67-BK-latest (plus my __builtin_memcpy patch).
Everything seems to be running just fine, so naturally one must nitpick
little things like being told my CPU is running at 0.000 Mhz. :)
2.4.x reports the Mhz correctly. I don't recall if 2.5.x did in the
past, but can check if needed.
sh-2.05b$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 7
model name : Pentium III (Katmai)
stepping : 3
cpu MHz : 0.000
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca
cmov pat pse36 mmx fxsr sse
bogomips : 494.59
Selected dmesg bits:
Calibrating delay loop... 494.59 BogoMIPS
Memory: 644596k/655296k available (2192k kernel code, 9960k reserved,
694k data, 296k init, 0k highmem)
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 512K
CPU serial number disabled.
CPU: After generic, caps: 0383f9ff 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: Intel Pentium III (Katmai) stepping 03
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
IA-32 Microcode Update Driver: v1.11 <tigran@veritas.com>
Enabling SEP on CPU 0
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: My P3 runs at.... zero Mhz (bug rpt)
2003-04-18 2:10 My P3 runs at.... zero Mhz (bug rpt) Jeff Garzik
@ 2003-04-18 4:44 ` Jurriaan
2003-04-18 21:11 ` Dave Jones
2003-04-18 5:08 ` [patch] mach_countup() fix Andrew Morton
1 sibling, 1 reply; 7+ messages in thread
From: Jurriaan @ 2003-04-18 4:44 UTC (permalink / raw)
To: Jeff Garzik; +Cc: LKML
From: Jeff Garzik <jgarzik@pobox.com>
Date: Thu, Apr 17, 2003 at 10:10:53PM -0400
> Just booted into 2.5.67-BK-latest (plus my __builtin_memcpy patch).
> Everything seems to be running just fine, so naturally one must nitpick
> little things like being told my CPU is running at 0.000 Mhz. :)
>
fwiw, my Athlon XP2400 does the same in 2.5.67-ac1:
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : AMD Athlon(tm) XP 2400+
stepping : 1
cpu MHz : 0.000
cache size : 256 KB
bogomips : 1970.17
Interesting enough, even the bogomips have halved w.r.t. earlier 2.5.x
kernels and 2.4.2x kernels. Booting a 2.4.21-pre7 kernel on the same
machine gets me close to 4000 bogomips, as is proper for a 2 GHz cpu.
The ioapic code does report the correct bus-speed however.
Ah well, they were bogus to begin with.
--
"I am not to be trifled with!"
"I didn't bring a trifle," Hawk said to Fisher. "Did you think to
bring a trifle?" "Knew I forgot something," said Fisher.
Simon R Green - Beyond the Blue Moon
Debian (Unstable) GNU/Linux 2.5.67-ac1 1970 bogomips load av: 1.48 1.62 1.79
^ permalink raw reply [flat|nested] 7+ messages in thread
* [patch] mach_countup() fix
2003-04-18 2:10 My P3 runs at.... zero Mhz (bug rpt) Jeff Garzik
2003-04-18 4:44 ` Jurriaan
@ 2003-04-18 5:08 ` Andrew Morton
1 sibling, 0 replies; 7+ messages in thread
From: Andrew Morton @ 2003-04-18 5:08 UTC (permalink / raw)
To: Jeff Garzik; +Cc: linux-kernel, Linus Torvalds
Jeff Garzik <jgarzik@pobox.com> wrote:
>
> Just booted into 2.5.67-BK-latest (plus my __builtin_memcpy patch).
> Everything seems to be running just fine, so naturally one must nitpick
> little things like being told my CPU is running at 0.000 Mhz. :)
>
Missing parentheses in mach_countup().
diff -puN include/asm-i386/mach-default/mach_timer.h~a include/asm-i386/mach-default/mach_timer.h
--- 25/include/asm-i386/mach-default/mach_timer.h~a 2003-04-17 22:02:12.000000000 -0700
+++ 25-akpm/include/asm-i386/mach-default/mach_timer.h 2003-04-17 22:02:49.000000000 -0700
@@ -40,7 +40,7 @@ static inline void mach_countup(unsigned
{
*count = 0L;
do {
- *count++;
+ (*count)++;
} while ((inb_p(0x61) & 0x20) == 0);
}
_
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: My P3 runs at.... zero Mhz (bug rpt)
2003-04-18 4:44 ` Jurriaan
@ 2003-04-18 21:11 ` Dave Jones
2003-04-18 21:44 ` Petr Konecny
0 siblings, 1 reply; 7+ messages in thread
From: Dave Jones @ 2003-04-18 21:11 UTC (permalink / raw)
To: Jurriaan; +Cc: Jeff Garzik, LKML
On Fri, Apr 18, 2003 at 06:44:54AM +0200, Jurriaan wrote:
> From: Jeff Garzik <jgarzik@pobox.com>
> Date: Thu, Apr 17, 2003 at 10:10:53PM -0400
> > Just booted into 2.5.67-BK-latest (plus my __builtin_memcpy patch).
> > Everything seems to be running just fine, so naturally one must nitpick
> > little things like being told my CPU is running at 0.000 Mhz. :)
> >
> fwiw, my Athlon XP2400 does the same in 2.5.67-ac1:
>
> processor : 0
> vendor_id : AuthenticAMD
> cpu family : 6
> model : 8
> model name : AMD Athlon(tm) XP 2400+
> stepping : 1
> cpu MHz : 0.000
> cache size : 256 KB
> bogomips : 1970.17
Curious. Do either of you have any cpufreq bits enabled?
If so, does it go away if you disable them?
That frobs with cpu_khz, so it *could* be not initialising
it someplace. Especially if your hardware turns out to be
unsupported by any of the cpufreq backend drivers..
Dave
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: My P3 runs at.... zero Mhz (bug rpt)
2003-04-18 21:11 ` Dave Jones
@ 2003-04-18 21:44 ` Petr Konecny
2003-04-18 23:50 ` Alan Cox
0 siblings, 1 reply; 7+ messages in thread
From: Petr Konecny @ 2003-04-18 21:44 UTC (permalink / raw)
To: linux-kernel; +Cc: Dave Jones, Jurriaan, Jeff Garzik, Alan Cox
>>>>> Dave Jones (Dave) said:
Dave> On Fri, Apr 18, 2003 at 06:44:54AM +0200, Jurriaan wrote:
>> From: Jeff Garzik <jgarzik@pobox.com>
>> Date: Thu, Apr 17, 2003 at 10:10:53PM -0400
>> > Just booted into 2.5.67-BK-latest (plus my __builtin_memcpy patch).
>> > Everything seems to be running just fine, so naturally one must nitpick
>> > little things like being told my CPU is running at 0.000 Mhz. :)
>> >
>> fwiw, my Athlon XP2400 does the same in 2.5.67-ac1:
>>
>> processor : 0
>> vendor_id : AuthenticAMD
>> cpu family : 6
>> model : 8
>> model name : AMD Athlon(tm) XP 2400+
>> stepping : 1
>> cpu MHz : 0.000
>> cache size : 256 KB
>> bogomips : 1970.17
Dave> Curious. Do either of you have any cpufreq bits enabled?
Dave> If so, does it go away if you disable them?
Dave> That frobs with cpu_khz, so it *could* be not initialising
Dave> it someplace. Especially if your hardware turns out to be
Dave> unsupported by any of the cpufreq backend drivers..
It does not help me with 2.5.67-ac2 + pcmcia patch. I get 0.000 MHz,
589.82 BogoMIPS with or without CPUFreq. It did the same thing with
2.5.67-ac1 (did not test w/o CPUFreq).
The box is 600 MHz PIII (Coppermine) in Dell Inspiron 5000. On the plus
side I kind of like the # of insns per clock cycle ;-)
As Jeff said it's almost OK otherwise; it hangs on boot without the
pcmcia patch and I saw USB Storage oopses.
Petr
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: My P3 runs at.... zero Mhz (bug rpt)
2003-04-18 21:44 ` Petr Konecny
@ 2003-04-18 23:50 ` Alan Cox
2003-04-19 0:07 ` Jeff Garzik
0 siblings, 1 reply; 7+ messages in thread
From: Alan Cox @ 2003-04-18 23:50 UTC (permalink / raw)
To: Petr Konecny; +Cc: linux-kernel, Dave Jones, Jurriaan, Jeff Garzik, Alan Cox
> It does not help me with 2.5.67-ac2 + pcmcia patch. I get 0.000 MHz,
> 589.82 BogoMIPS with or without CPUFreq. It did the same thing with
> 2.5.67-ac1 (did not test w/o CPUFreq).
Its a bug in the mach- patches. Someone sent a fix to l/k
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: My P3 runs at.... zero Mhz (bug rpt)
2003-04-18 23:50 ` Alan Cox
@ 2003-04-19 0:07 ` Jeff Garzik
0 siblings, 0 replies; 7+ messages in thread
From: Jeff Garzik @ 2003-04-19 0:07 UTC (permalink / raw)
To: Alan Cox; +Cc: Petr Konecny, linux-kernel, Dave Jones, Jurriaan
Alan Cox wrote:
>>It does not help me with 2.5.67-ac2 + pcmcia patch. I get 0.000 MHz,
>>589.82 BogoMIPS with or without CPUFreq. It did the same thing with
>>2.5.67-ac1 (did not test w/o CPUFreq).
>
>
> Its a bug in the mach- patches. Someone sent a fix to l/k
Yep. Linus committed a better fix, too. :)
Jeff
^ permalink raw reply [flat|nested] 7+ messages in thread
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2003-04-18 2:10 My P3 runs at.... zero Mhz (bug rpt) Jeff Garzik
2003-04-18 4:44 ` Jurriaan
2003-04-18 21:11 ` Dave Jones
2003-04-18 21:44 ` Petr Konecny
2003-04-18 23:50 ` Alan Cox
2003-04-19 0:07 ` Jeff Garzik
2003-04-18 5:08 ` [patch] mach_countup() fix Andrew Morton
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