[Bug 273615] infinite loop in sbflush_internal()

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 273615] infinite loop in sbflush_internal()"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 08 Sep 2023 01:05:12 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273615

--- Comment #1 from Greg Becker <greg@codeconcepts.com> ---
It turns out that if I remove all customizations from loader.conf and
sysctl.conf I am unable to reproduce the problem.  However, if I make this
single change (kern.ipc.maxsockbuf=614400000, as per Calomel's tuning guide)
then the problem crops up very soon after on the iperf3 server side.

When it occurs, both sb_acc and sb_ccc are equal (typically around
3.4-billion).

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