Re: kern/59339 (heartbeat watchdog fires since 10.99.14)

["David H. Gutteridge via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/59339; it has been noted by GNATS.

From: "David H. Gutteridge" <david%gutteridge.ca@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/59339 (heartbeat watchdog fires since 10.99.14)
Date: Sun, 05 Oct 2025 16:04:49 -0400

 On Sun, 5 Oct 2025 at 14:03:46 +0000, Taylor R Campbell wrote:
 > Those of you who have been running with the latest patch (v6): have
 > you seen any of the prints in dmesg?
 >=20
 > They would look something like this (with different numbers):
 >=20
 > PR kern/59339 (heartbeat watchdog fires since 10.99.14) would fire:
 > [clock 3] [now=3D123.123450000 -> 123.123460000], last=3D123.123445000 +
 > interval=3D0.000010000 -> next=3D123.123455000
 >=20
 > Or (extremely unlikely unless you're fiddling with your clock to set
 > it forward by centuries):
 >=20
 > [clock 0] itimer arithmetic overflowed:
 > now=3D9223372036854775798.000000000, last=3D123.456789123 +
 > interval=3D20.000000000
 >=20
 > I think the part of the change that avoids these conditions is worth
 > keeping anyway but I'm curious to see if it is happening in practice.
 
 I haven't seen either of these. Presently running 11.99.3 with the v6
 patches applied. (In my case current uptime about two weeks, a mix of
 idling and intense activity building pkgsrc packages.)
 
 Thanks,
 
 Dave