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Date:      Sat, 8 Dec 2007 23:26:15 +0000
From:      Thomas Sparrevohn <Thomas.Sparrevohn@btinternet.com>
To:        freebsd-current@freebsd.org
Cc:        =?utf-8?q?=E9=9F=93=E5=AE=B6=E6=A8=99_Bill_Hacker?= <askbill@conducive.net>
Subject:   Re: CURRENT Kernel makes the system run very very hot
Message-ID:  <200712082326.16494.Thomas.Sparrevohn@btinternet.com>
In-Reply-To: <475B133E.5080408@conducive.net>
References:  <200712081728.18710.Thomas.Sparrevohn@btinternet.com> <200712082122.18835.Thomas.Sparrevohn@btinternet.com> <475B133E.5080408@conducive.net>

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On Saturday 08 December 2007 21:57:18 =E9=9F=93=E5=AE=B6=E6=A8=99 Bill Hack=
er wrote:
> Thomas Sparrevohn wrote:
>=20
> Nothing readly visible, anyway.
>=20
> Looks as if there is something looping as fast as the clock can push it, =
and at=20
> a primitive or 'deep' enough level the tools available can't see it.
>=20
> Are there any kernel build options aside from GENERIC?
>=20
> Which kld's in use?
>=20
> If no clues there, in the absence of panel switches for RUN/HALT/SS, I'd =
suggest=20
> building or installing at least a new kernel, if not world.
>=20
> Bill

There are no other options but GENERIC (AMD64) - I had "rtc.ko" loaded - Bu=
t I have removed that
which helped a little bit (I can sit beside the machine when its running si=
ngle job "make buildkernel" ).

On my standard make -j 8 it still gets very hot - which it never has done u=
ntil very recently

World and Kernel was build this afternoon - I normally rebuild every day - =
kld loads

Id Refs Address            Size     Name
 1   14 0xffffffff80100000 b18a70   kernel (/boot/kernel/kernel)
 2    1 0xffffffff80c19000 f5f18    zfs.ko (/boot/kernel/zfs.ko)
 3    2 0xffffffffd9c0b000 1874f    linux.ko (/boot/kernel/linux.ko)
 4    1 0xffffffffd9c42000 346d     linprocfs.ko (/boot/kernel/linprocfs.ko)
 5    1 0xffffffffd9c96000 1076     daemon_saver.ko (/boot/kernel/daemon_sa=
ver.ko)
 6    1 0xffffffffd9c98000 729      coretemp.ko (/boot/kernel/coretemp.ko)


What are the most reliable way to get idle time? Running vmstat and sysctl =
dev.cpu | grep temper - seems
to indicate that the grow hotter even when idle is quite high e.g. 25-50% -=
 but that could just be a measurement error




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