C3 on Travelmate 8000
Hi,
on my Travelmate 8005 (with Pentium M - Dothan) there is constant bus master activity. I already tried to disable USB, PCMCIA, Network, Framebuffer, Cpufreq etc., but even with a minimalistic system there ist still the following output of /proc/acpi/processor/CPU0/power:
active state: C2 default state: C1 bus master activity: ffffffff
states:
C1: promotion[C2] demotion[--] latency[000]
usage[00000010]
*C2: promotion[C3] demotion[C1] latency[001]
usage[00901857]
C3: promotion[--] demotion[C2] latency[085]
usage[00000000]
Is there anything else I can do? Or can I somehow find out, what is causing the bus master activity? Disabling the bm_check=1 in the processor.c code works, but that is probably the wrong solution.
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Quoted 13 lines
on my Travelmate 8005 (with Pentium M - Dothan) there is constant bus master activity. I already tried to disable USB, PCMCIA, Network, Framebuffer, Cpufreq etc., but even with a minimalistic system there ist still the following output of
/proc/acpi/processor/CPU0/power:active state: C2 default state: C1 bus master activity: ffffffffstates:
C1: promotion[C2] demotion[--] latency[000]
usage[00000010]
*C2: promotion[C3] demotion[C1] latency[001]
usage[00901857]
C3: promotion[--] demotion[C2] latency[085]
usage[00000000]
Quoted 1 line
Is there anything else I can do? Or can I somehow find out, what is causing the bus master activity? Disabling the bm_check=1 in the
processor.ccode works, but that is probably the wrong solution.
You should check the processor/chipset errata ("specification update" in Intel-language). Perhaps the BM status register is broken on your particular chipset.
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