Re: hitting Assertion !callout_active(&tp->t_callout) failed at /usr/src/sys/netinet/tcp_subr.c:2386 after 62d47d7

From: Dave Cottlehuber <dch_at_FreeBSD.org>
Date: Mon, 12 Feb 2024 11:41:18 UTC 
On Mon, 12 Feb 2024, at 10:26, tuexen@freebsd.org wrote:
>> On Feb 12, 2024, at 09:50, Dave Cottlehuber <dch@freebsd.org> wrote:
>> 
>> On Mon, 12 Feb 2024, at 08:31, Dave Cottlehuber wrote:
>>> I'm repeatedly hitting this assert soon after boot on my ryzen desktop 
>>> I've a coredump.
>>> 
>>> Panic String: Assertion !callout_active(&tp->t_callout) failed at 
>>> /usr/src/sys/netinet/tcp_subr.c:2386

This one "just happens" while I'm sitting at the PC hacking in the terminal,
I don't get much incoming data here so it's presumably clean local traffic.

>>> I'll apply your latest patch in 
>>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276761#c16 and report 
>>> back..
>> 
>> Reporting back, insta-panic on boot at:
>> 
>> Panic String: Assertion !tcp_timer_active(tp, TT_REXMT) failed at /usr/src/sys/netinet/tcp_subr.c:2387
>> 
>> Does that help any?
> Sure! Could you provide any hints how to reproduce it?

this one happens during boot very early, I have a coredump handy if that helps.
I will try with all sysctls disabled, and without zerotier (overlay network)
too, see if that makes a difference.

A+
Dave
———
O for a muse of fire, that would ascend the brightest heaven of invention!