Date: Fri, 17 Mar 2017 07:30:23 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 217637] One TCP connection accepted TWO times Message-ID: <bug-217637-2472-6M5tdLa3x1@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-217637-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-217637-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217637 --- Comment #23 from Sepherosa Ziehau <sepherosa@gmail.com> --- (In reply to Michael Tuexen from comment #22) Thank you for the explanation for the ACK w/ data. As for syncookie usage. If we use syncookie it probably means two things: - No INPCB for the connection. That's why we enter syncache/syncookie code= in the first place. - No syncache. Short of memory could be one of the cause. The connections= was established and dropped (this bug report). I think it's acceptable and reasonable heuristic to just drop the ACK w/ da= ta in side syncache before checking the syncookie. --=20 You are receiving this mail because: You are the assignee for the bug.=
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