>
http://bugzilla.kernel.org/show_bug.cgi?id=8100
>
> Summary: dynticks makes ksoftirqd1 use unreasonable amount of cpu
> time
> Kernel Version: 2.6.21-rc2
> Status: NEW
> Severity: low
> Owner:
johnstul@us.ibm.com
> Submitter:
jkarlson@cc.hut.fi
>
>
> Most recent kernel where this bug did *NOT* occur:
> any kernel without dynticks
>
> Distribution:
> Debian etch with linux-2.6.21-rc{2,1}
>
> Hardware Environment:
> Macbook core2 with bios emulation
>
> Software Environment:
> The problem is obvious when listening to shoutcast stream with kmplayer and
> artsd via wi-fi with wpa (wpa_supplicant)
>
> Problem Description:
> ksoftirqd1 uses ~30% cpu-time (by top) no other symptoms, while
> without dyntikcs cpu-load in similar circumstances is negligible.
> This might be a dynticks feature rather than bug.
>
> Steps to reproduce:
> Just watch the top, if the bug is reproducible, probably just booting should
> suffice.
>
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