From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Sat, 08 Apr 2006 10:45:32 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
MIME-Version: 1.0
Subject: Re: [Xenomai-core] bad/slow TSC hw  detected by  2.6.17-rc1-mm1
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To: Jim Cromie <jim.cromie@domain.hid>
Cc: xenomai@xenomai.org

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Jim Cromie wrote:
> FYI,
>=20
> Ive just built 17-rc1-mm1, and noted that the new time-keeping-system
> http://lwn.net/Articles/176837/
>=20
> can now detect the buggy TSC on my GEODE-sc1100 cpu,
> and also that its apparently fixable by adding 'idle=3Dpoll' to
> kernel-boot-line.

Keeps your CPU safe and warm, I guess. ;)

>=20
> Apr  7 11:42:01 truck kernel: [   19.160016] Kernel command line:
> console=3DttyS0,115200n81 root=3D/dev/nfs
> nfsroot=3D192.168.42.1:/nfshost/truck
> nfsaddrs=3D192.168.42.100:192.168.42.1:192.168.42.1:255.255.255.0:soekr=
is:eth0
> panic=3D5 initrd=3Dinitrd-2.6.17-rc1-mm1-sk.img=20
> BOOT_IMAGE=3Dvmlinuz-2.6.17-rc1-mm1-sk
> Apr  7 11:42:01 truck kernel: [   24.314851] Time: tsc clocksource has
> been installed.
> Apr  7 11:42:01 truck kernel: [   29.977802] TSC appears to be running
> slowly. Marking it as unstable
> Apr  7 11:42:01 truck kernel: [   20.460000] Time: pit clocksource has
> been installed.
>=20
> Apr  7 12:35:56 truck kernel: [   21.562573] Kernel command line:
> console=3DttyS0,115200n81 root=3D/dev/nfs
> nfsroot=3D192.168.42.1:/nfshost/truck
> nfsaddrs=3D192.168.42.100:192.168.42.1:192.168.42.1:255.255.255.0:soekr=
is:eth0
> panic=3D5 initrd=3Dinitrd-2.6.17-rc1-mm1-sk.img idle=3Dpoll
> BOOT_IMAGE=3Dvmlinuz-2.6.17-rc1-mm1-sk
> Apr  7 12:35:56 truck kernel: [   21.563049] using polling idle threads=
=2E
> Apr  7 12:35:56 truck kernel: [   28.393469] Time: tsc clocksource has
> been installed.
>=20
>=20
> hope this is useful,
> jimc
>=20

Jan


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