On Friday, January 21, 2011, Len Brown wrote: > > and here's the one that failed and then ended up coming back on a keypress: > > > > ... > > [ 54.628375] PM: Saving platform NVS memory > > [ 54.628387] Disabling non-boot CPUs ... > > [ 63.554966] ACPI Exception: AE_BAD_PARAMETER, Returned by Handler > > for [EmbeddedControl] (20110112/evregion-474) > > [ 63.554992] ACPI Error: Method parse/execution failed > > [\_SB_.PCI0.SBRG.EC0_.RCTP] (Node f5c2dea0), AE_BAD_PARAMETER > > (20110112/psparse-536) > > [ 63.555022] ACPI Error: Method parse/execution failed > > [\_TZ_.RTMP] (Node f5c32fa8), AE_BAD_PARAMETER (20110112/psparse-536) > > [ 63.555047] ACPI Error: Method parse/execution failed > > [\_TZ_.TZ00._TMP] (Node f5c34018), AE_BAD_PARAMETER > > (20110112/psparse-536) > > [ 63.555079] Thermal: failed to read out thermal zone 0 > > [ 63.556361] CPU 1 is now offline > > [ 63.556944] PM: Restoring platform NVS memory > > [ 63.556944] Enabling non-boot CPUs ... > > [ 63.556944] Booting Node 0 Processor 1 APIC 0x1 > > [ 63.556279] Initializing CPU#1 > > ... > > > > which really doesn't tell me much, except that clearly something in > > ACPI-land is unhappy, and it looks thermal-related (that last error > > message comes from thermal_zone_device_update()). > > The thermal code failed to get the current > temperature (via AML "_TMP" method) because > the embedded controller (or our interface to it) malfunctioned. > Likely the suspend issue has nothing to do with thermal per se, > and thermal is effectively pointing out to us that the EC is unhappy. > > Failures associated with the embedded controller are now > by far the largest portion of unsolved mysteries > in the Linux ACPI implementation and we need to focus > on the EC in 2011. Still, I don't really understand why that's happening while we're disabling CPU1 on this machine. The execution of AML certainly shouldn't take place at this time. Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
