Re: strange message before sending mail

On Thu, Aug 20, 2026 at 10:25:21AM +0200, Vincent Lefevre wrote:
> So most Linux users would expect HZ=250 (a jiffy of 0.004 s = 4 ms).

All Fedora and Ubuntu 24.04 systems I checked had 1000.  All Red Hat-like
systems even as far back as CentOS 7 also had 1000.

Ubuntu 22.04 had a mix of 250 and 1000, and the split was that those
with the generic 5.15 kernel had 250 while those with the HWE 6.8
kernel had 1000.

So my available evidence suggests that modern systems generally
have HZ=1000.  It is of course not a hard and fast rule, because
the packager of your kernel can change it as they see fit.  And Red
Hat plus Ubuntu is not the whole world in terms of Linux distros.

If yours is 250 it may explain why you experience the bug and I don't.

Ian Collier.