[Bug 276761] panic: sbsndptr_noadv: sb_mb is NULL

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 01 Feb 2024 18:11:50 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276761

--- Comment #5 from Gleb Smirnoff <glebius@FreeBSD.org> ---
Daniel, yes the core looks the same as several I already have.  As Richard
said we have workarounds against this panic and we know what commit opened
it up.  The commit itself isn't a mistake, though.  Instead of committing
any of our workarounds we are looking to find the root cause of the panic,
a path that would flush socket send buffer but leave sack scoreboard.  If
you have any clue how reproduce the bug, please share.  You mentioned certain
iperf action/configuration.

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