| Re: [chrony-dev] [PATCH] ntp: fall back to message if_index if timestamping if_index is 0 |
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- To: JR Lanteigne <root@xxxxxxxx>
- Subject: Re: [chrony-dev] [PATCH] ntp: fall back to message if_index if timestamping if_index is 0
- From: Miroslav Lichvar <mlichvar@xxxxxxxxxx>
- Date: Mon, 24 Aug 2026 16:34:42 +0200
- Cc: chrony-dev@xxxxxxxxxxxxxxxxxxxx
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On Sun, Aug 23, 2026 at 01:55:47AM -0300, JR Lanteigne wrote:
> Validated on the affected hardware: measurements.log flips from "K K"
> to "H H". Offsets against two GPS-disciplined observers on the same
> switch improve from ~100 us of kernel latency noise to under 1 us.
One thing that is not clear to me, how could this bug impact transmit
timestamps? The SCM_TIMESTAMPING_PKTINFO option should apply only to
received packets, at least that's what it originally was support to do.
--
Miroslav Lichvar
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