[Bug 252958] [tcp] Kernel panic in tcp_prr_partialack()

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252958

--- Comment #3 from Martin Matuska <mm at FreeBSD.org> ---
This is somewhat difficult, we are not able to reproduce it artificially on our
test system, we need "live" traffic on our 100Gbit link, but very little
streaming traffic from various systems (Linux, Windows, Android, ...) is enough
to trigger it. The panic happens somewhere between 3-30 minutes after the
system with the "faulty" kernel gets online with only few hundred megabit to
single-digit gigabit traffic.

What is a pity that we have not set up a large-enough swap partition for a
kernel dump so I just have the backtrace from a screenshot of a debug-enabled
kernel. If there is anything else how I can help, may we could redesign the
boot disk to have a larger partition to be able to store a kernel dump.

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