Date: Wed, 17 Mar 2021 15:30:16 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 254309] [tcp] frequent panics in tcp_output Message-ID: <bug-254309-7501-R32uaiOWAa@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-254309-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-254309-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254309 Richard Scheffenegger <rscheff@freebsd.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|net@FreeBSD.org |rscheff@freebsd.org Status|New |In Progress --- Comment #11 from Richard Scheffenegger <rscheff@freebsd.org> --- See https://reviews.freebsd.org/D29315=20 flags =3D 17 -> 0x11, 0x10 is TF_SENTFIN, TF_ACKNOW and 6675pipe is enabled, enabling the new rescue-retransmission. Further, this is stated to be a web server, where it is likely that http/1.0 tcp sessions are closed right after an object was sent, and if the very last segment with the FIN is dropped by the network, the rescue retransmission c= ode tried to include the "data byte" of the FIN (which doesn't exist really, on= ly as the last octet in the sequence space stream). --=20 You are receiving this mail because: You are the assignee for the bug.=
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