From nobody Sat Mar 07 23:10:01 2026 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fSzWk2nyTz6TWPK for ; Sat, 07 Mar 2026 23:10:10 +0000 (UTC) (envelope-from imb@protected-networks.net) Received: from mail.protected-networks.net (mail.protected-networks.net [IPv6:2001:470:8d59:1::8]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "mail.protected-networks.net", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fSzWh4TZTz3LqW for ; Sat, 07 Mar 2026 23:10:08 +0000 (UTC) (envelope-from imb@protected-networks.net) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=protected-networks.net header.s=201508 header.b="b e+cwjY"; dmarc=pass (policy=reject) header.from=protected-networks.net; spf=pass (mx1.freebsd.org: domain of imb@protected-networks.net designates 2001:470:8d59:1::8 as permitted sender) smtp.mailfrom=imb@protected-networks.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d= protected-networks.net; h=content-transfer-encoding:content-type :content-type:subject:subject:from:from:content-language :user-agent:mime-version:date:date:message-id; s=201508; t= 1772925001; bh=XbH9NZfzhaykqSNaSxY0asjmuXTbDBAQDIGmCoMsL4s=; b=b e+cwjYM1MSh1ncEzQ1tI6Evym8eY8+KlV20tKSJ4C9se729iPiAmqhBMDGIDwnAV UyWsc1JjmhtVbQTYU81NMbFzfS8uKTDfZ+Ky6fqDTPXAhL2hOxexXADZogohJr4S X2PyqVwvR1BYr8Z2qLBP6FJEJb7uzS5P2akBxZ1NaA= Received: from [192.168.1.9] (d5540.auburn.protected-networks.net [192.168.1.9]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: imb@mail.protected-networks.net) by mail.protected-networks.net (Postfix) with ESMTPSA id 329D9487FF for ; Sat, 07 Mar 2026 18:10:01 -0500 (EST) Message-ID: <51222750-b287-40b8-aa76-87eb38e11c78@protected-networks.net> Date: Sat, 7 Mar 2026 18:10:01 -0500 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-NZ To: freebsd-current From: Michael Butler Subject: timeouts on vtnet? Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-2.99 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; SUBJECT_ENDS_QUESTION(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.99)[-0.989]; DMARC_POLICY_ALLOW(-0.50)[protected-networks.net,reject]; R_SPF_ALLOW(-0.20)[+mx]; R_DKIM_ALLOW(-0.20)[protected-networks.net:s=201508]; MIME_GOOD(-0.10)[text/plain]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; RCVD_COUNT_ONE(0.00)[1]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; ARC_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-current@freebsd.org]; DKIM_TRACE(0.00)[protected-networks.net:+] X-Rspamd-Queue-Id: 4fSzWh4TZTz3LqW X-Spamd-Bar: -- Is anyone else seeing timeouts on virtual interfaces? e.g. Mar 7 15:00:27 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:00:45 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:03:22 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:05:30 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:06:17 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:07:06 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:08:04 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:09:20 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:10:53 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:12:08 george kernel: vtnet0: watchdog timeout on queue 0 Mar 7 15:13:03 george kernel: vtnet0: watchdog timeout on queue 0 This started happening sometime after commit 32beb3ae71cb which doesn't do this. I don't have access to the VPS host but messages on the guest don't seem to report anything unusual (or different) .. Mar 7 15:49:12 george kernel: CPU: Intel Xeon E312xx (Sandy Bridge, IBRS update) (2400.07-MHz K8-class CPU) Mar 7 15:49:12 george kernel: Origin="GenuineIntel" Id=0x206a1 Family=0x6 Model=0x2a Stepping=1 Mar 7 15:49:12 george kernel: Features=0x1f83fbff Mar 7 15:49:12 george kernel: Features2=0x9fba2223 Mar 7 15:49:12 george kernel: AMD Features=0x2c100800 Mar 7 15:49:12 george kernel: AMD Features2=0x1 Mar 7 15:49:12 george kernel: Structured Extended Features3=0x9c000400 Mar 7 15:49:12 george kernel: XSAVE Features=0x1 Mar 7 15:49:12 george kernel: VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID Mar 7 15:50:36 george kernel: Hypervisor: Origin = "KVMKVMKVM" Mar 7 15:50:36 george kernel: real memory = 4294967296 (4096 MB) Mar 7 15:50:36 george kernel: avail memory = 4128796672 (3937 MB) Mar 7 15:50:36 george kernel: Event timer "LAPIC" quality 600 Mar 7 15:50:36 george kernel: ACPI APIC Table: Mar 7 15:50:36 george kernel: FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs Mar 7 15:50:36 george kernel: FreeBSD/SMP: 4 package(s) x 1 core(s) Mar 7 15:50:36 george kernel: random: unblocking device. Mar 7 15:50:36 george kernel: Security policy loaded: MAC/ntpd (mac_ntpd) Mar 7 15:50:36 george kernel: ioapic0 irqs 0-23 Mar 7 15:50:36 george kernel: Launching APs: 1 2 3 Mar 7 15:50:36 george kernel: random: entropy device external interface Mar 7 15:50:36 george kernel: kbd1 at kbdmux0 Mar 7 15:50:36 george kernel: efirtc0: Mar 7 15:50:36 george kernel: efirtc0: registered as a time-of-day clock, resolution 1.000000s Mar 7 15:50:36 george kernel: kvmclock0: Mar 7 15:50:36 george kernel: Timecounter "kvmclock" frequency 1000000000 Hz quality 975 Mar 7 15:50:36 george kernel: kvmclock0: registered as a time-of-day clock, resolution 0.000001s Mar 7 15:50:36 george kernel: smbios0: at iomem 0xbfbd0000-0xbfbd001e Mar 7 15:50:36 george kernel: smbios0: Entry point: v2.1 (32-bit), Version: 2.8, BCD Revision: 2.8 Mar 7 15:50:36 george kernel: aesni0: Mar 7 15:50:36 george kernel: acpi0: [ .. snip .. ] Mar 7 15:50:36 george kernel: vgapci0: mem 0xc0000000-0xc0ffffff,0xc1042000-0xc1042fff at device 2.0 on pci0 Mar 7 15:50:36 george kernel: vgapci0: Boot video device Mar 7 15:50:36 george kernel: virtio_pci0: port 0xc040-0xc05f mem 0xc1041000-0xc1041fff,0x800000000-0x800003fff irq 11 at device 3.0 on pci0 Mar 7 15:50:36 george kernel: vtnet0: on virtio_pci0 Mar 7 15:50:36 george kernel: vtnet0: Ethernet address: 02:f0:9a:7d:6f:9b Mar 7 15:50:36 george kernel: vtnet0: netmap queues/slots: TX 1/256, RX 1/128 Mar 7 15:50:36 george kernel: 000.000083 [ 452] vtnet_netmap_attach vtnet attached txq=1, txd=256 rxq=1, rxd=128 Mar 7 15:50:36 george kernel: virtio_pci1: port 0xc000-0xc03f mem 0xc1040000-0xc1040fff,0x800004000-0x800007fff irq 11 at device 4.0 on pci0 Mar 7 15:50:36 george kernel: vtballoon0: on virtio_pci1 imb@george:/home/imb> sysctl hw.vtnet hw.vtnet.altq_disable: 0 hw.vtnet.lro_mbufq_depth: 0 hw.vtnet.lro_entry_count: 128 hw.vtnet.rx_process_limit: 1024 hw.vtnet.tso_maxlen: 65535 hw.vtnet.mq_max_pairs: 32 hw.vtnet.mq_disable: 0 hw.vtnet.lro_disable: 1 hw.vtnet.tso_disable: 0 hw.vtnet.fixup_needs_csum: 0 hw.vtnet.csum_disable: 0 imb@george:/home/imb> sysctl dev.vtnet.0 dev.vtnet.0.txq0.rescheduled: 0 dev.vtnet.0.txq0.tso: 63 dev.vtnet.0.txq0.csum: 271745 dev.vtnet.0.txq0.omcasts: 6 dev.vtnet.0.txq0.obytes: 84738631 dev.vtnet.0.txq0.opackets: 273595 dev.vtnet.0.rxq0.rescheduled: 0 dev.vtnet.0.rxq0.host_lro: 0 dev.vtnet.0.rxq0.csum_failed: 26 dev.vtnet.0.rxq0.csum: 665480 dev.vtnet.0.rxq0.ierrors: 0 dev.vtnet.0.rxq0.iqdrops: 0 dev.vtnet.0.rxq0.ibytes: 221502559 dev.vtnet.0.rxq0.ipackets: 683982 dev.vtnet.0.tx_task_rescheduled: 0 dev.vtnet.0.tx_tso_offloaded: 63 dev.vtnet.0.tx_csum_offloaded: 271746 dev.vtnet.0.tx_defrag_failed: 0 dev.vtnet.0.tx_defragged: 0 dev.vtnet.0.tx_tso_without_csum: 0 dev.vtnet.0.tx_tso_not_tcp: 0 dev.vtnet.0.tx_csum_proto_mismatch: 0 dev.vtnet.0.tx_csum_unknown_ethtype: 0 dev.vtnet.0.rx_task_rescheduled: 0 dev.vtnet.0.rx_csum_offloaded: 665480 dev.vtnet.0.rx_csum_failed: 26 dev.vtnet.0.rx_csum_inaccessible_ipproto: 0 dev.vtnet.0.rx_csum_bad_offset: 0 dev.vtnet.0.rx_csum_bad_ipproto: 26 dev.vtnet.0.rx_csum_bad_ethtype: 0 dev.vtnet.0.rx_mergeable_failed: 0 dev.vtnet.0.rx_enq_replacement_failed: 0 dev.vtnet.0.rx_frame_too_large: 0 dev.vtnet.0.mbuf_alloc_failed: 0 dev.vtnet.0.flags: 4cfe dev.vtnet.0.features: 3087b867 dev.vtnet.0.act_vq_pairs: 1 dev.vtnet.0.req_vq_pairs: 1 dev.vtnet.0.max_vq_pairs: 1 dev.vtnet.0.%iommu: dev.vtnet.0.%parent: virtio_pci0 dev.vtnet.0.%pnpinfo: vendor=0x00001af4 device=0x1000 subvendor=0x1af4 device_type=0x00000001 dev.vtnet.0.%location: dev.vtnet.0.%driver: vtnet dev.vtnet.0.%desc: VirtIO Networking Adapter