On Mon, Apr 26, 2021 at 11:41:13AM -0700, Brian Buhrow wrote: > hello. Occasionally I see messages like the following from my > FreeBSD-12.2/dom0 machine. > Is this related to the issue of the NetBSD domu's seeing bursts of oversized > packets, which I assume > is caused by packets getting sent from the dom0 to the domu in batches rather > than one at a > time, each with an interrupt signal, or, the xen equivalent? > > On the domu's I see: > xennet0: discarding oversize frame (len=1518) > > I see the following messages on the dom0, but not necessarily at the same > time as the above > messages appear in the domu's. > > Any ideas? > -thanks > -Brian > > > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_ring2pkt:1532): Unknown extra > info type 255. Discarding packet > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:302): > netif_tx_request index =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:303): > netif_tx_request.gref =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:304): > netif_tx_request.offset=0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:305): > netif_tx_request.flags =8 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:306): > netif_tx_request.id =69 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:307): > netif_tx_request.size =1000 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:302): > netif_tx_request index =1 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:303): > netif_tx_request.gref =255 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:304): > netif_tx_request.offset=0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:305): > netif_tx_request.flags =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:306): > netif_tx_request.id =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_dump_txreq:307): > netif_tx_request.size =0 > Apr 25 14:56:35 xen-lothlorien kernel: xnb(xnb_rxpkt2rsp:2066): Got error -1 > for hypervisor gnttab_copy status
Those are from netback failing to recognize or process a packet. Likely netback is being too verbose here, as those should only appear on debug builds or with boot_verbose. It might help identify what's going wrong between NetBSD netfront and FreeBSD netback. Roger. _______________________________________________ freebsd-xen@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-xen To unsubscribe, send any mail to "freebsd-xen-unsubscr...@freebsd.org"
