Messages in this thread | | | Subject | RE: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT] | Date | Wed, 22 Mar 2006 09:30:04 +0800 | From | "Yu, Luming" <> |
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>Two more experiments: > > With a vanilla kernel, I faked EC0.UPDT() to just return >0x00, and the > system hung on the second sleep. > > Then, again in the DSDT, I also faked the 4 _TMP methods (one in each > thermal zone), and the system hung on the second sleep. > >I think we've raced too far ahead by trying to debug many thermal zones >at once. Perhaps there are two bugs. So let's find them one by one.
Hmm, you seems to prefer depth-first search algorithm? I like it too. :-)
> >One bug is quite repeatable and we know a lot about it. With all zones >except THM0 commented out, the system hung. With the EC0.UPDT line in >THM0._TMP also commented out, the system didn't hang. So there's a >problem related to the EC, even with only THM0. And finding that >problem may giveideas for what else may be wrong.
We can do bisection in EC0.UPDT to find out which statement cause hang? Hmm, we are going to fix BIOS. :-)
My assumption is that since Windows works well, then these BIOS code should have been tested ok. The only possible excuse for BIOS is that Linux is using unnecessary/untested code path for Suspend/resume. So, Eventually, we need to disable unnecessary BIOS call for suspend/resume
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