Date: Fri, 13 Aug 2004 08:52:03 -0700 From: "Kevin Oberman" <oberman@es.net> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: HEADSUP: acpi mpsafe committed Message-ID: <20040813155203.3B45F5D04@ptavv.es.net> In-Reply-To: Your message of "Thu, 12 Aug 2004 23:35:48 PDT." <411C6144.6060100@root.org>
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> Date: Thu, 12 Aug 2004 23:35:48 -0700 > From: Nate Lawson <nate@root.org> > Sender: owner-freebsd-acpi@freebsd.org > > Let me know if there are any problems. > > Thanks for testing: Rong-En Fan <rafan.AT.infor.org>, Kevin Oberman > <oberman.AT.es.net>, marcel. > > (And now the same to you! :) Why do I see things right AFTER the commit? (O.K. I actually saw them late last night, but was too tired to do any testing and am still in the process of building kernels to do some real testing.) Since I installed a kernel/modules with the mpsafe patches I have found that P4_TCC and throttling no longer work. They worked with an unpatched kernel/modules built on Wednesday and failed with the patched kernel/modules I am now running. I have not updated the sources between the two kernel builds, so I think it has to be the patches. Now the admission of not knowing what I am doing. The P4 TCC stuff appears to be very similar to the ACPI throttling capability. I suspect that the latter simply controls the former, but I really don't know. I guess that I really should have removed it when I was able to use ACPI throttling, but I never removed it and it continued to work until last night. When I went to battery, hw.p4tcc.cpuperf remained at 100 instead of dropping to hw.p4tcc.cpuperf_economy. Similarly, hw.acpi.cpu.thottle_state remains at 8 and hw.acpi.cw_lowest is at C1 instead of C2 or C3. economy_throttle_state is set to 4 and economy_cx_lowest is at default (LOW). Really takes down the old battery quickly! -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634
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