Archive for Ноябрь, 2011
Linux Hyper-V fix PM-Timer Bug by add acpi_pm_good to the kernel command in GRUB menu.lst
!!!
!!! VVM: need for Hyper-V:
!!! added acpi_pm_good to the kernel command in /boot/grub/menu.lst
!!!
Error:
run
dmesg
or best
dmesg | grep *
and see
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...
* Found PM-Timer Bug on the chipset. Due to workarounds for a bug,
* this clock source is slow. Consider trying other clock sources
...
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Solution:
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...
added acpi_pm_good to the kernel command in /boot/grub/menu.lst
...
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http://home.earthlink.net/~peter.a.taylor/dualboot.htm
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. . . my wife's computer, "Isis", . . .
. . .
I also note that Linux (on Isis) gave me this boot-time warning message:* The chipset may have PM-Timer Bug. Due to workarounds for a bug,
* this clock source is slow. If you are sure your timer does not have
* this bug, please use "acpi_pm_good" to disable the workaroundI downloaded the pmtmr_test.c program by OGAWA Hirofumi
==http://markmail.org/message/yapeh7vrwrsticzf
==
to test for this, compiled with gcc (gcc -opmtmr_test pmtmr_test.c),
ran it, concluded that Isis did not have this bug, and
added acpi_pm_good to the kernel command in /boot/grub/menu.lst
. This made Linux noticably faster on Isis.. . .
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