[Bug 264094] seting net.inet.tcp.cc.algorithm to htcp triggers panic on the most recent CURRENT

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 20 May 2022 08:25:23 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264094

            Bug ID: 264094
           Summary: seting net.inet.tcp.cc.algorithm to htcp triggers
                    panic on the most recent CURRENT
           Product: Base System
           Version: CURRENT
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: zarychtam@plan-b.pwste.edu.pl

Created attachment 234045
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=234045&action=edit
stack backtrace

After the upgrade to FreeBSD 14.0-CURRENT #3 main-n255718-f2ab9160844 using
previosly working net.inet.tcp.cc.algorithm=htcp introduces panic triggered by
sendmail starting up. Reverting to default net.inet.tcp.cc.algorithm=newreno
setiing solves the issue.
The affected architecture is ARM64, last working version was FreeBSD
14.0-CURRENT #1 main-n253944-b2cf3c2125b: Thu Mar 24 18:17:21 CET 2022.

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