I'm currently using a VF nic passed through to windows 10 with great success. When I attempt to do the same with with a Linux guest machine, I see a kernel warning in my dmesg output and the nic not only performs poorly but also seems to cycle up and down from time to time. Any ideas?
The dmesg output. [ 102.828264] WARNING: CPU: 0 PID: 0 at /build/linux-5EyXrQ/linux-4.4.0/net/sched/sch_generic.c:306 dev_watchdog+0x237/0x240() [ 102.828289] NETDEV WATCHDOG: ens3 (igbvf): transmit queue 0 timed out [ 102.828297] Modules linked in: ppdev kvm_intel kvm irqbypass joydev input_leds serio_raw i2c_piix4 parport_pc parport 8250_fintek mac_hid ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid hid crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse igbvf pata_acpi floppy [ 102.828342] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.0-87-generic #110-Ubuntu [ 102.828349] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 [ 102.828351] 0000000000000286 7717ad27f8874148 ffff88013fc03d98 ffffffff813f9903 [ 102.828354] ffff88013fc03de0 ffffffff81d70f18 ffff88013fc03dd0 ffffffff81081332 [ 102.828356] 0000000000000000 ffff8801384b0480 0000000000000000 ffff88003527a000 [ 102.828358] Call Trace: [ 102.828359] <IRQ> [<ffffffff813f9903>] dump_stack+0x63/0x90 [ 102.828367] [<ffffffff81081332>] warn_slowpath_common+0x82/0xc0 [ 102.828369] [<ffffffff810813cc>] warn_slowpath_fmt+0x5c/0x80 [ 102.828372] [<ffffffff8175db97>] dev_watchdog+0x237/0x240 [ 102.828375] [<ffffffff8175d960>] ? qdisc_rcu_free+0x40/0x40 [ 102.828379] [<ffffffff810ecf25>] call_timer_fn+0x35/0x120 [ 102.828381] [<ffffffff8175d960>] ? qdisc_rcu_free+0x40/0x40 [ 102.828388] [<ffffffff810ed8da>] run_timer_softirq+0x23a/0x2f0 [ 102.828390] [<ffffffff81085e11>] __do_softirq+0x101/0x290 [ 102.828393] [<ffffffff81086113>] irq_exit+0xa3/0xb0 [ 102.828396] [<ffffffff81844962>] smp_apic_timer_interrupt+0x42/0x50 [ 102.828400] [<ffffffff81842c22>] apic_timer_interrupt+0x82/0x90 [ 102.828401] <EOI> [<ffffffff81064636>] ? native_safe_halt+0x6/0x10 [ 102.828407] [<ffffffff81038e5e>] default_idle+0x1e/0xe0 [ 102.828409] [<ffffffff8103966f>] arch_cpu_idle+0xf/0x20 [ 102.828413] [<ffffffff810c468a>] default_idle_call+0x2a/0x40 [ 102.828415] [<ffffffff810c49f1>] cpu_startup_entry+0x2f1/0x350 [ 102.828418] [<ffffffff8183570c>] rest_init+0x7c/0x80 [ 102.828422] [<ffffffff81f5e011>] start_kernel+0x481/0x4a2 [ 102.828425] [<ffffffff81f5d120>] ? early_idt_handler_array+0x120/0x120 [ 102.828427] [<ffffffff81f5d339>] x86_64_start_reservations+0x2a/0x2c [ 102.828429] [<ffffffff81f5d485>] x86_64_start_kernel+0x14a/0x16d [ 102.828434] ---[ end trace 3dd091553181e0bf ]--- Thanks!
_______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
