Date: Tue, 27 Feb 2007 14:26:30 -0800 From: Nate Lawson <nate@root.org> To: Joel Dahl <joel@FreeBSD.org> Cc: stable@freebsd.org, current@FreeBSD.org Subject: Re: PATCH: new acpi embedded controller I/O model Message-ID: <45E4B016.6040804@root.org> In-Reply-To: <1172606717.1007.12.camel@dude.automatvapen.se> References: <45E39552.2020607@root.org> <1172606717.1007.12.camel@dude.automatvapen.se>
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Joel Dahl wrote: > Mån 2007-02-26 klockan 18:20 -0800 skrev Nate Lawson: >> If you are having EC timeout problems as in the below PR, please try the >> latest EC code. I just committed it in rev 1.69 of acpi_ec.c to >> -current. > > Thanks for working on this, but my laptop (HP nx7400) shuts down right > after boot (or sometimes during boot) after this commit. I see this on > the console: > > acpi_tz3: WARNING - Current temperature (3416.3) exceeds safe limits > ... > WARNING: System temperature too high, shutting down soon! > > Everything works fine with an older kernel. > First, try booting with these changes. You can set a tunable (debug.acpi.disabled="thermal") to avoid the erroneous thermal shutdown. 1. set debug.acpi.ec.burst=0 2. set debug.acpi.ec.timeout=1000 3. uncomment the #if 0 code in acpi_ec.c and recompile Then, collect the data with the method I provided: >> To find any performance problems, you'll need to rebuild the kernel >> and modules with this added to your kernel config: >> >> options KTR >> options KTR_ENTRIES=65536 >> >> Then reboot, load this kernel/acpi.ko, use the system for a while to >> trigger the problem behavior and generate output: >> ktrdump -t | gzip -c > ktr.out.gz -- Nate
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