Bug#414322: linux-source-2.6.18: kernel freeze on disk i/o (regression)

[Figaro <ynegorp@charter.net>]

Hi, all.
Yes, I forgot to mention 2.6,20 also, which we found to be the same as 
the -18 kernel.
Sorry, to have forgotten.
matthew

Lionel MOOG wrote:
> 1) cat /sys/devices/system/clocksource/clocksource0/current_clocksource
>   reveals that the timer clock is based on "pit" by default in the 2.6.18
>   kernel
>
> 2) cat /sys/devices/system/clocksource/clocksource0/current_clocksource
>   reveals that the timer clock is based on "jiffies" by default in the 
> 2.6.20
>   kernel
>
> 3) simply switching to "tsc" these default timer clock values solves 
> the freeze
>   and the hang problem in both 2.6.18 and 2.6.20 kernels.
>
>
> To resume :
>    - clocksource=pit      ->  freeze issues
>    - clocksource=jiffies  ->  latency issues
>
> So please, I suggest that you use / enable the "tsc" clocksource by 
> default for
> the upcoming kernels versions related to the k7 architecture.
>
>
> THR4K