Re: CURRENT Kernel makes the system run very very hot

----- Original Message ----- 
From: "Rene Ladan" <r.c.ladan_at_gmail.com>
To: "Ken Menzel" <kenm_at_icarz.com>
Cc: <freebsd-current_at_freebsd.org>
Sent: Wednesday, December 12, 2007 12:18 PM
Subject: Re: CURRENT Kernel makes the system run very very hot


> 2007/12/12, Ken Menzel <kenfreebsd_at_icarz.com>:
>> ----- Original Message -----
>> From: "Mark Linimon" <linimon_at_lonesome.com>
>> To: "Sam Fourman Jr." <sfourman_at_gmail.com>
>> Cc: <freebsd-current_at_freebsd.org>
>> Sent: Wednesday, December 12, 2007 2:42 AM
>> Subject: Re: CURRENT Kernel makes the system run very very hot
>>
>>
>> > On Wed, Dec 12, 2007 at 01:38:49AM -0600, Sam Fourman Jr. wrote:
>> >> I did not file a PR (I don't know how I have never done one.)
>> >
>> > Please see http://www.freebsd.org/support/bugreports.html.
>> >
>> > mcl
>> Thanks Mark,  It seems like it may be an ACPI problem based on:
>>
>> (kgdb) print cpu_idle_hook
>> $1 = (void (*)(void)) 0xffffffff801d0bb0 <acpi_cpu_idle>
>> (kgdb) q
>>
>> Thanks to Kostik Belousov for the advice on where to go next.  And
>> based on that I will move this to the ACPI mailing list and file a 
>> PR.
>>
> Hmm, on my too hot i386 laptop:
>
> # make installkernel.debug
> #gdb /boot/kernel/kernel
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and 
> you are
> welcome to change it and/or distribute copies of it under certain 
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for 
> details.
> This GDB was configured as "i386-marcel-freebsd"...
> (gdb) print cpu_idle_hook
> $1 = (void (*)(void)) 0xc063cc9b <cpu_idle_default>
> (gdb) print cpu_idle_default
> $2 = {void (void)} 0xc063cc9b <cpu_idle_default>
>


Rene,  please try

cd /usr/obj/usr/src/sys/GENERIC  (or where-ever you built your kernel)
 kgdb kernel.debug /dev/mem
print cpu_idle_hook

This should show what is running in memory.


> #grep -r cpu_idle_default *
> amd64/amd64/machdep.c:cpu_idle_default(void)
> amd64/amd64/machdep.c:void (*cpu_idle_hook)(void) = 
> cpu_idle_default;
> dev/acpica/acpi_cpu.c:    /* Take over idling from 
> cpu_idle_default(). */
> i386/i386/machdep.c:cpu_idle_default(void)
> i386/i386/machdep.c:void (*cpu_idle_hook)(void) = cpu_idle_default;
> ia64/ia64/machdep.c:cpu_idle_default(void)
> ia64/ia64/machdep.c:void (*cpu_idle_hook)(void) = cpu_idle_default;
> pc98/pc98/machdep.c:cpu_idle_default(void)
> pc98/pc98/machdep.c:void (*cpu_idle_hook)(void) = cpu_idle_default;
>
> #dmesg |grep -i acpi
> 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>
> ACPI APIC Table: <AMI    OEMAPIC >
> acpi0: <_ASUS_ Notebook> on motherboard
> acpi0: [ITHREAD]
> acpi0: Power Button (fixed)
> acpi0: reservation of 0, a0000 (3) failed
> acpi0: reservation of e0000, 20000 (3) failed
> acpi0: reservation of 100000, 7ff00000 (3) failed
> Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
> acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
> acpi_ec0: <Embedded Controller: GPE 0x1c> port 0x62,0x66 on acpi0
> acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff 
> on acpi0
> cpu0: <ACPI CPU> on acpi0
> cpu1: <ACPI CPU> on acpi0
> ACPI Warning (tbutils-0243): Incorrect checksum in table [SSDT] - 
> 99,
> should be 2C [20070320]
> acpi_asus0: Unsupported Asus laptop: A6Je
> pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
> pci0: <ACPI PCI bus> on pcib0
> pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0
> pci1: <ACPI PCI bus> on pcib1
> acpi_video0: <ACPI video extension> on vgapci0
> pcib2: <ACPI PCI-PCI bridge> irq 20 at device 28.0 on pci0
> pci2: <ACPI PCI bus> on pcib2
> pcib3: <ACPI PCI-PCI bridge> irq 19 at device 28.3 on pci0
> pci3: <ACPI PCI bus> on pcib3
> pcib4: <ACPI PCI-PCI bridge> at device 30.0 on pci0
> pci4: <ACPI PCI bus> on pcib4
> acpi_lid0: <Control Method Lid Switch> on acpi0
> acpi_button0: <Power Button> on acpi0
> acpi_button1: <Sleep Button> on acpi0
> acpi_tz0: <Thermal Zone> on acpi0
> acpi_acad0: <AC Adapter> on acpi0
> battery0: <ACPI Control Method Battery> on acpi0
> atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
> speaker0: <PC speaker> port 0x61 on acpi0
> acpi_asus0: Unsupported Asus laptop: A6Je
>
> hw.acpi.cpu.cx_lowest: C1
>
> So I have an ACPI capable CPU but it is not (properly) loaded?
>
> Regards,
> Rene
> -- 
> GPG fingerprint = E738 5471 D185 7013 0EE0  4FC8 3C1D 6F83 12E1 84F6
> (subkeys.pgp.net)
>
> "It won't fit on the line."
> -- me, 2001
See instruction in text above.

Ken