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=254309 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 flags = 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 code tried to include the "data byte" of the FIN (which doesn't exist really, only as the last octet in the sequence space stream). -- You are receiving this mail because: You are the assignee for the bug.
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