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LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
(Nearly) full tickless operation in 3.10
printk(KERN_INFO"ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n");
So, if that message is in your dmesg, you might be affected.
How to know if you are affected
Posted Jun 29, 2011 18:12 UTC (Wed) by troy.unrau (guest, #73654)
# dmesg | grep ASPM
[ 0.000000] PCIe ASPM is forcedly enabled
[ 0.439490] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
I'm not sure this means that the kernel has decided to turn it off anyway, or if my laptop truly doesn't support it. Still need more data to determine if power drain improves.
Posted Jun 29, 2011 18:18 UTC (Wed) by cesarb (subscriber, #6266)
+ if (!aspm_force)
+ aspm_clear_state = 1;
Posted Jun 29, 2011 18:30 UTC (Wed) by mjg59 (subscriber, #23239)
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