[ 485.105896] ring_slots_used (19) > max_slots_needed (18) [ 485.105976] ------------[ cut here ]------------ [ 485.107251] kernel BUG at drivers/net/xen-netback/netback.c:632! [ 485.108571] invalid opcode: 0000 [#1] SMP [ 485.109849] Modules linked in: iptable_filter ip_tables x_tables lm85 dme1737 hwmon_vid autofs4 nfsd xen_gntalloc bridge stp llc ipv6 nls_iso8859_1 ipmi_si ipmi_devintf ipmi_msghandler openvswitch vxlan tun tmem xen_acpi_processor xen_gntdev xen_pciback xen_blkback xen_netback radeon fbcon bitblit softcursor font tileblit ttm drm_kms_helper drm microcode evdev radeonfb fb_ddc i2c_algo_bit e1000e cfbfillrect cfbimgblt k10temp cfbcopyarea backlight fb fbdev rtc_cmos floppy button i2c_nforce2 processor forcedeth ohci_pci i2c_core thermal_sys ata_generic dm_zero dm_thin_pool dm_persistent_data dm_bio_prison xts lrw gf128mul glue_helper ablk_helper cryptd aes_x86_64 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi tg3 ptp pps_core libphy hwmon e1000 fuse btrfs ext4 jbd2 linear raid0 dm_raid raid1 [ 485.121413] raid10 dm_snapshot dm_bufio dm_crypt dm_mirror dm_region_hash dm_log firewire_core hid_sunplus hid_samsung hid_pl hid_petalynx hid_gyration usbhid ohci_hcd uhci_hcd usb_storage ehci_pci ehci_hcd megaraid_sas 3w_xxxx qla1280 aic7xxx scsi_transport_spi sr_mod cdrom sg ahci libahci sata_nv sata_sil pata_amd libata [ 485.127787] CPU: 1 PID: 8164 Comm: kdc0.0-guest-rx Not tainted 3.15.0 #103 [ 485.129470] Hardware name: empty empty/S2932/S2932-E/S2932-SI, BIOS 'V2.06 ' 10/22/2009 [ 485.131247] task: ffff880117394ac0 ti: ffff8800bf56c000 task.ti: ffff8800bf56c000 [ 485.132989] RIP: e030:[] [] xenvif_rx_action+0x496/0x830 [xen_netback] [ 485.134937] RSP: e02b:ffff8800bf56fd78 EFLAGS: 00010292 [ 485.136621] RAX: 000000000000002c RBX: 0000000000000012 RCX: 0000000000000001 [ 485.138434] RDX: ffff880126e2e8c8 RSI: ffff880126e2df78 RDI: ffff8800bf560238 [ 485.140285] RBP: ffff8800bf56fe58 R08: 0000000000000001 R09: 0000000000000000 [ 485.142147] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800c8e88ee0 [ 485.144041] R13: 0000000000000011 R14: 0000000000000000 R15: ffff8800c0a50800 [ 485.145963] FS: 00007f55125c8740(0000) GS:ffff880126e20000(0000) knlGS:0000000000000000 [ 485.147958] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 485.149830] CR2: 0000000001760000 CR3: 00000000b9553000 CR4: 0000000000000660 [ 485.151865] Stack: [ 485.153594] ffff8800bf56fdd4 0000000000000000 ffff8800ffffffff ffffffff814ba418 [ 485.155769] ffff88011e72b230 000000111e72b85a ffff8800c0a5b148 ffff8800c0a50800 [ 485.157911] 000000000000183b 0000000000000000 ffff8800bf56fdf8 000000001e72b230 [ 485.160098] Call Trace: [ 485.161900] [] ? _raw_spin_unlock_irqrestore+0x47/0x62 [ 485.163984] [] xenvif_kthread_guest_rx+0x12b/0x1ea [xen_netback] [ 485.166000] [] ? __wake_up_sync+0xd/0xd [ 485.168024] [] ? xenvif_stop_queue+0x53/0x53 [xen_netback] [ 485.170158] [] kthread+0xcd/0xd5 [ 485.172166] [] ? kthread_freezable_should_stop+0x43/0x43 [ 485.174323] [] ret_from_fork+0x7c/0xb0 [ 485.176385] [] ? kthread_freezable_should_stop+0x43/0x43 [ 485.178676] Code: ff 41 89 44 24 28 41 8b b7 34 a9 00 00 2b b5 60 ff ff ff 39 de 0f 86 78 03 00 00 89 da 48 c7 c7 11 9d 81 a0 31 c0 e8 34 d1 c9 e0 <0f> 0b 48 8b bd 50 ff ff ff e8 8d b9 be e0 48 85 c0 49 89 c4 0f [ 485.186512] RIP [] xenvif_rx_action+0x496/0x830 [xen_netback] [ 485.189164] RSP [ 485.191614] ---[ end trace f396ff56268b095a ]---