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MACHINE
Tux's lil' helper
Joined: 30 Mar 2004
Posts: 141
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 Posted: Wed Mar 22, 2006 2:46 am Post subject: How to select timer by using kernel parameter? |
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I just install Kernel 2.6.16, and PM_TIMER is automatically started instead of HPET_TIMER.
My system (Acer TravelMate 3001) always hangs up by using PM_TIMER no idea why.
However, since 2.6.16, i can no longer find the PM_TIMER option and no idea how to disable it.
So how to select timer by using kernel parameter?
Thanks!
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PaulBredbury
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Joined: 14 Jul 2005
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| Posted: Wed Mar 22, 2006 3:35 am Post subject: Re: How to select timer by using kernel parameter? |
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| MACHINE wrote: | | My system (Acer TravelMate 3001) always hangs up by using PM_TIMER no idea why. |
That also happens with some Dell servers, caused by the BIOS hardware clock supposedly being "better".
You can run grep TIMER /usr/src/linux/.config, or in the kernel's "make menuconfig" press "/" and just search for "timer". |
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MACHINE
Tux's lil' helper
Joined: 30 Mar 2004
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| Posted: Wed Mar 22, 2006 5:21 am Post subject: Re: How to select timer by using kernel parameter? |
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| PaulBredbury wrote: | | MACHINE wrote: | | My system (Acer TravelMate 3001) always hangs up by using PM_TIMER no idea why. |
That also happens with some Dell servers, caused by the BIOS hardware clock supposedly being "better".
You can run grep TIMER /usr/src/linux/.config, or in the kernel's "make menuconfig" press "/" and just search for "timer". |
it does not work, it will be overwritten everytime i "make".
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PaulBredbury
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| Posted: Wed Mar 22, 2006 5:40 am Post subject: |
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Try it, and I think you'll find it does work. Otherwise, people would have a most annoying time of trying to configure their kernels 
grep does not change anything, it just shows matches. You make the change within make menuconfig. |
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MACHINE
Tux's lil' helper
Joined: 30 Mar 2004
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| Posted: Wed Mar 22, 2006 7:36 am Post subject: |
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| PaulBredbury wrote: | Try it, and I think you'll find it does work. Otherwise, people would have a most annoying time of trying to configure their kernels
grep does not change anything, it just shows matches. You make the change within make menuconfig. |
1. make menuconfig
2. vi .config (to comment out CONFIG_X86_PM_TIMER)
3. make
4. cat .config | grep PM_TIMER (and you will see CONFIG_X86_PM_TIMER is set to yes again)
5. make modules_install
6. make install
7. reboot
8. (hang up)
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PaulBredbury
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| Posted: Wed Mar 22, 2006 7:40 am Post subject: |
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| MACHINE wrote: | | 2. vi .config (to comment out CONFIG_X86_PM_TIMER) |
Don't do that - heed the warning at the stop of the file:
| Quote: | | # Automatically generated make config: don't edit |
Edit the file via the user interface from make menuconfig |
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MACHINE
Tux's lil' helper
Joined: 30 Mar 2004
Posts: 141
Location: Earth
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| Posted: Wed Mar 22, 2006 9:21 am Post subject: |
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| PaulBredbury wrote: | | MACHINE wrote: | | 2. vi .config (to comment out CONFIG_X86_PM_TIMER) |
Don't do that - heed the warning at the stop of the file:
| Quote: | | # Automatically generated make config: don't edit |
Edit the file via the user interface from make menuconfig |
as I said, there is no such option in menuconfig in 2.6.16.
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Primozic
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Joined: 11 Jun 2004
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Location: Dover, NH, USA
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| Posted: Wed Mar 22, 2006 4:44 pm Post subject: |
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I'm using 2.6.16, and it's there. You have to have ACPI enabled to see it, and I'm assuming you do since you're using a laptop.
Power management options (ACPI, APM) --> ACPI (Advanced Configuration and Power Interface) Support
[ ] Power Management Timer Support |
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PaulBredbury
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| Posted: Wed Mar 22, 2006 5:53 pm Post subject: |
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make menuconfig's search on pm_timer explains everything:
| Code: | Symbol: X86_PM_TIMER [=y]
│ Prompt: Power Management Timer Support │
│ Defined at drivers/acpi/Kconfig:287 │
│ Depends on: !X86_VOYAGER && !X86_VISWS && !IA64_HP_SIM && (IA64 || X8 │
│ Location: │
│ -> Power management options (ACPI, APM) │
│ -> ACPI (Advanced Configuration and Power Interface) Support │
│ -> ACPI Support (ACPI [=y]) |
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MACHINE
Tux's lil' helper
Joined: 30 Mar 2004
Posts: 141
Location: Earth
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| Posted: Wed Mar 22, 2006 7:45 pm Post subject: |
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| PaulBredbury wrote: | make menuconfig's search on pm_timer explains everything:
| Code: | Symbol: X86_PM_TIMER [=y]
©¦ Prompt: Power Management Timer Support ©¦
©¦ Defined at drivers/acpi/Kconfig:287 ©¦
©¦ Depends on: !X86_VOYAGER && !X86_VISWS && !IA64_HP_SIM && (IA64 || X8 ©¦
©¦ Location: ©¦
©¦ -> Power management options (ACPI, APM) ©¦
©¦ -> ACPI (Advanced Configuration and Power Interface) Support ©¦
©¦ -> ACPI Support (ACPI [=y]) |
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What!!!!!! Unbelievable........It does not exist in my kernel config.......
By the way, I'm using CK's kernel.
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MACHINE
Tux's lil' helper
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| Posted: Wed Mar 22, 2006 8:36 pm Post subject: |
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oh no........even gentoo-sources does not have that option.
i'm gonna try vanilla-sources tonight...
thank everybody!
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dundas
Guru
Joined: 16 Dec 2004
Posts: 317
Location: China, Earth
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| Posted: Sun Jun 18, 2006 10:37 am Post subject: |
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u should have it now wiz current stable gentoo-sources r9
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