Date: Mon, 31 Jul 2017 13:58:33 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-virtualization@FreeBSD.org Subject: [Bug 215737] [bhyve] utilizing virtio-net truncates jumbo frames at 4084 bytes length Message-ID: <bug-215737-27103-0KqqILD2JC@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-215737-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-215737-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215737 --- Comment #2 from Harald Schmalzbauer <bugzilla.freebsd@omnilan.de> --- Just a quick note: This is not related to r321679 (https://svnweb.freebsd.org/base?view=3Drevision&revision=3D321679) >From the description I was confident that the problem was in if_vtnet(4) and solved, but the symptoms are still exactly the same after r321679 (tested on 11.1-RELEASE). Accidentally I first checked with vale(4) instead of if_bridge(4) and saw t= hat the symptom is similar, but with different numbering. The largest frame possible with vale(4) (and if_vtnet(4) and bhyve(8)) is 2= 048 bytes, resulting in 2006 bytes ICMP (echo-request) payload. I'm not sure if the problem is with if_vtnet(4) or bhyve(4). Unfortunately I don't have the debugging skills to find the code paths myse= lf and not the time learning to do so :-( Any help highly appreciated. -harry --=20 You are receiving this mail because: You are the assignee for the bug.=
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