[ntp:questions] Leap second bug?

Hal Murray hal-usenet at ip-64-139-1-69.sjc.megapath.net
Sun Jan 6 13:26:04 UTC 2008

>I've personally had lost clock interrupts due to a disk driver, on Linux,
>at HZ=100, but that was an obsolete high speed interface, on a relatively
>slow machine.  People regularly get lost ticks on Linux at HZ=1000, when
>using IDE's in non-DMA mode and I also believe they get them at HZ=250.
>I believe there have been reports at HZ=100.

It's easy to miss interrupts at HZ=100 in non-DMA mode.  All you have to
do is a lot of disk activity.  (I admit I haven't tried it with
a modern machine running a recent kernel.)

These are my opinions, not necessarily my employer's.  I hate spam.

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