Date: Thu, 9 Apr 2026 00:40:10 +0800 From: Zhenlei Huang <zlei@FreeBSD.org> To: Lexi Winter <ivy@FreeBSD.org> Cc: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: <E43D6BA4-ACA4-45F8-A94C-950570D73432@FreeBSD.org> In-Reply-To: <adZ8ukpOuD21dcmY@amaryllis.le-fay.org> References: <adZocDxDXSBFXQGA@amaryllis.le-fay.org> <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <adZ2r2xhTZA2Cx0i@amaryllis.le-fay.org> <adZ8ukpOuD21dcmY@amaryllis.le-fay.org>
index | next in thread | previous in thread | raw e-mail
[-- Attachment #1 --] > On Apr 9, 2026, at 12:05 AM, Lexi Winter <ivy@FreeBSD.org> wrote: > > Lexi Winter wrote in <adZ2r2xhTZA2Cx0i@amaryllis.le-fay.org>: >> even with the network working, tcpdump is still not showing any packets. >> i have no idea what's going on here or even where to start looking. >> >> i'm currently installing a ppc64le guest on the same host to see if that >> behaves any differently. > > so, i tested on ppc64le and tcpdump works fine. > > FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 15:25:27 UTC 2026 > root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64le/sys/GENERIC64LE > > this could be some sort of endian conversion issue, but since the ppc64 > networking itself works fine, i would have thought any endian problems > would have surfaced before that. Nice ! To narrow down the problem, will you please test tcpdump with other ethernet drivers, say if_bridge(8) and / or if_epair(8) ? Surely on PPC64 ( BE ). Best regards, Zhenlei [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQRj28YmNowGX1isJg7GJJ6Jgbd0XwUCadaE6l8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0NjNE QkM2MjYzNjhDMDY1RjU4QUMyNjBFQzYyNDlFODk4MUI3NzQ1RgAKCRDGJJ6Jgbd0 XwDFAP9Tc90fHCGM6KwtiyBtJS5zwlGsiXQFcb3AfSYAPwJFFQD/bojLvd/ifmB5 3h068J/ciqQbn8U3aSs82P8XGcwAwQ0= =U8Ct -----END PGP SIGNATURE-----home | help
Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E43D6BA4-ACA4-45F8-A94C-950570D73432>