Re: 2.6.17-rc1-mm1 - detects buggy TSC on GEODE

From: Andrew Morton
Date: Fri Apr 07 2006 - 20:04:57 EST


Jim Cromie <jim.cromie@xxxxxxxxx> wrote:
>
>
> FYI,
>
> as the 2 syslog extracts show;
> 1. the new kernel is now detecting the buggy TSC on the GEODE-sc1100
> 2. the bug is apparently correctable by passing 'idle=poll' on kernel
> boot-line.
>
> Heres one vendor's bug/erratta description:
> http://soekris.com/Issue0003.htm
>
>
> Apr 7 11:42:01 truck kernel: [ 19.160016] Kernel command line:
> console=ttyS0,115200n81 root=/dev/nfs
> nfsroot=192.168.42.1:/nfshost/soekris
> nfsaddrs=192.168.42.100:192.168.42.1:192.168.42.1:255.255.255.0:soekris:eth0
> panic=5 BOOT_IMAGE=vmlinuz-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.
>
>
> Apr 7 12:35:56 truck kernel: [ 21.562573] Kernel command line:
> console=ttyS0,115200n81 root=/dev/nfs
> nfsroot=192.168.42.1:/nfshost/soekris
> nfsaddrs=192.168.42.100:192.168.42.1:192.168.42.1:255.255.255.0:soekris:eth0
> panic=5 idle=poll BOOT_IMAGE=vmlinuz-2.6.17-rc1-mm1-sk
> Apr 7 12:35:56 truck kernel: [ 21.563049] using polling idle threads.
> Apr 7 12:35:56 truck kernel: [ 28.393469] Time: tsc clocksource has
> been installed.
>
>
> Its nice to see the buggy TSC detector detect, and the work-around work.

hm.

John, does this mean that enable-tsc-for-amd-geode-gx-lx.patch is only safe
to merge after all your time-management patches have gone in?
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