On Sun, Oct 29, 2017 at 11:51:55PM +0100, Fengguang Wu wrote:
>Hi Linus,
>
>Up to now we see the below boot error/warnings when testing v4.14-rc6.
>
>They hit the RC release mainly due to various imperfections in 0day's
>auto bisection. So I manually list them here and CC the likely easy to
>debug ones to the corresponding maintainers in the followup emails.
>
>boot_successes: 4700
>boot_failures: 247
>
>BUG:kernel_hang_in_test_stage: 152
>BUG:kernel_reboot-without-warning_in_test_stage: 10
>BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/mutex.c: 1
>BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/rwsem.c: 3
>BUG:sleeping_function_called_from_invalid_context_at_mm/page_alloc.c: 21
>BUG:soft_lockup-CPU##stuck_for#s: 1
>BUG:unable_to_handle_kernel: 13

Here are 3 dmesgs related to wireless and 1 from ethernet.

[  235.351487] ieee80211 phy3:   BCN EN: 0 (BI=100)
[  235.351488] ieee80211 phy3:   beaconing vifs remaining: 0
[  235.351491] ieee80211 phy3: mac80211_hwsim_bss_info_changed(changed=0x4000 vif->addr=02:00:00:00:03:00)
[  235.351495] ieee80211 phy3: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=0 ps=0 smps=static)
[  235.351503] ieee80211 phy3: mac80211_hwsim_config (freq=2412(2412 - 0)/noht idle=1 ps=0 smps=static)
[  235.425464] BUG: unable to handle kernel paging request at 0000000000010007
[  235.425470] IP: run_timer_softirq+0x13a/0x470
[  235.425471] PGD 7f7b9067 P4D 7f7b9067 PUD 7e803067 PMD 0 
[  235.425474] Oops: 0002 [#1] SMP
[  235.425475] Modules linked in: cmac ccm arc4 mac80211_hwsim mac80211 cfg80211 rfkill rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sr_mod cdrom sg ata_generic pata_acpi sb_edac crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc ppdev aesni_intel crypto_simd glue_helper cryptd snd_pcm snd_timer snd soundcore pcspkr serio_raw ata_piix i2c_piix4 parport_pc libata parport floppy ip_tables
[  235.425498] CPU: 1 PID: 191 Comm: sed Not tainted 4.14.0-rc6 #1
[  235.425499] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[  235.425500] task: ffff88007f30a680 task.stack: ffffc900005d8000
[  235.425502] RIP: 0010:run_timer_softirq+0x13a/0x470
[  235.425503] RSP: 0018:ffff880059f03ec8 EFLAGS: 00010006
[  235.425504] RAX: 000000000000ffff RBX: 0000000000000001 RCX: ffff8800073267c0
[  235.425505] RDX: ffff880059f03ed0 RSI: ffff880059f122e8 RDI: ffff880059f03ed8
[  235.425506] RBP: ffff880059f03f40 R08: ffff880059f127a8 R09: ffff880059f03ed8
[  235.425507] R10: ffff880059f12330 R11: 000000000000021a R12: ffff880059f122c0
[  235.425508] R13: ffff880059f03ed0 R14: dead000000000200 R15: ffff8800073267c0
[  235.425509] FS:  00007fee278f9800(0000) GS:ffff880059f00000(0000) knlGS:0000000000000000
[  235.425510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  235.425511] CR2: 0000000000010007 CR3: 000000007f7bd004 CR4: 00000000001606e0
[  235.425514] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  235.425515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  235.425515] Call Trace:
[  235.425517]  <IRQ>
[  235.425522]  ? kvm_clock_get_cycles+0x25/0x30
[  235.425524]  ? ktime_get+0x40/0xa0
[  235.425527]  __do_softirq+0x104/0x2ab
[  235.425530]  irq_exit+0xf1/0x100
[  235.425532]  smp_apic_timer_interrupt+0x69/0x140
[  235.425534]  apic_timer_interrupt+0x9d/0xb0
[  235.425534]  </IRQ>
[  235.425538] RIP: 0010:console_unlock+0x1f0/0x4f0
[  235.425539] RSP: 0018:ffffc900005dbd18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
[  235.425540] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ffffffff
[  235.425541] RDX: ffffc900005dbcd0 RSI: 0000000000000004 RDI: 0000000000000246
[  235.425542] RBP: ffffc900005dbd50 R08: 0000000000000000 R09: 0000000000000000
[  235.425543] R10: ffff8800000be360 R11: 0000000082354701 R12: 0000000000000068
[  235.425544] R13: ffffffff82075560 R14: 0000000000000000 R15: ffffffff823546a0
[  235.425547]  vprintk_emit+0x302/0x3b0
[  235.425549]  printk_emit+0x33/0x3b
[  235.425553]  ? __kmalloc+0x195/0x210
[  235.425555]  devkmsg_write+0xf6/0x150
[  235.425558]  __vfs_write+0xd3/0x150
[  235.425560]  vfs_write+0xc7/0x1b0
[  235.425561]  SyS_write+0x46/0xa0
[  235.425563]  entry_SYSCALL_64_fastpath+0x1a/0xa5
[  235.425564] RIP: 0033:0x7fee26ff6720
[  235.425565] RSP: 002b:00007ffc0955bca8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  235.425566] RAX: ffffffffffffffda RBX: 00007ffc0955bab0 RCX: 00007fee26ff6720
[  235.425567] RDX: 0000000000000001 RSI: 0000000000611598 RDI: 0000000000000001
[  235.425568] RBP: 00000000025b9f88 R08: 00007fee272b4760 R09: 00007fee272b3600
[  235.425569] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000021d5720
[  235.425569] R13: 00000000025b9fe0 R14: 00007ffc0955bbd0 R15: 00000000021d56a8
[  235.425571] Code: 4c 8d 6c c5 90 49 8b 45 00 48 85 c0 74 de 4d 8b 7d 00 4d 89 7c 24 08 0f 1f 44 00 00 49 8b 07 49 8b 57 08 48 85 c0 48 89 02 74 04 <48> 89 50 08 41 f6 47 2a 20 49 c7 47 08 00 00 00 00 4c 89 e7 4d 
[  235.425595] RIP: run_timer_softirq+0x13a/0x470 RSP: ffff880059f03ec8
[  235.425596] CR2: 0000000000010007
[  235.425599] ---[ end trace d8e5bfc8241675f9 ]---
[  235.425600] Kernel panic - not syncing: Fatal exception in interrupt

[  192.135748] 
[  192.146702] Starting AP wlan3 (old add_ap argument type)
[  192.146704] 
[  192.150146] Connect STA wlan0 to AP
[  192.150148] 
[  192.223018] BUG: unable to handle kernel paging request at 0000000000010007
[  192.224767] IP: run_timer_softirq+0x13a/0x470
[  192.226028] PGD 0 P4D 0 
[  192.227007] Oops: 0002 [#1] SMP
[  192.239453] Modules linked in: cmac ccm arc4 mac80211_hwsim mac80211 cfg80211 rfkill rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sr_mod cdrom sg ata_generic pata_acpi sb_edac crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc ppdev aesni_intel crypto_simd glue_helper cryptd snd_pcm snd_timer snd soundcore pcspkr serio_raw floppy parport_pc parport ata_piix libata i2c_piix4 ip_tables
[  192.247986] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.0-rc6 #1
[  192.249595] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[  192.251943] task: ffff8800570fcd00 task.stack: ffffc90000374000
[  192.253418] RIP: 0010:run_timer_softirq+0x13a/0x470
[  192.254746] RSP: 0018:ffff880059f03ec8 EFLAGS: 00010006
[  192.256134] RAX: 000000000000ffff RBX: 0000000000000001 RCX: ffff88007f3dcf40
[  192.257832] RDX: ffff880059f03ed8 RSI: ffff880059f122e8 RDI: ffff880059f03ee0
[  192.259481] RBP: ffff880059f03f40 R08: ffff880059f12890 R09: ffff880059f03ee0
[  192.261128] R10: ffff880059f12330 R11: 0000000000000000 R12: ffff880059f122c0
[  192.262824] R13: ffff880059f03ed8 R14: dead000000000200 R15: ffff88007f3dcf40
[  192.264491] FS:  0000000000000000(0000) GS:ffff880059f00000(0000) knlGS:0000000000000000
[  192.266838] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  192.268293] CR2: 0000000000010007 CR3: 0000000001e09006 CR4: 00000000001606e0
[  192.269973] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  192.271667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  192.273332] Call Trace:
[  192.274310]  <IRQ>
[  192.275222]  ? kvm_clock_get_cycles+0x25/0x30
[  192.276478]  ? ktime_get+0x40/0xa0
[  192.277620]  __do_softirq+0x104/0x2ab
[  192.278748]  irq_exit+0xf1/0x100
[  192.279871]  smp_apic_timer_interrupt+0x69/0x140
[  192.281175]  apic_timer_interrupt+0x9d/0xb0
[  192.282416]  </IRQ>
[  192.283320] RIP: 0010:native_safe_halt+0x6/0x10
[  192.284656] RSP: 0018:ffffc90000377e90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
[  192.286888] RAX: 0000000080000000 RBX: ffff8800570fcd00 RCX: 0000000000000000
[  192.288572] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  192.290235] RBP: ffffc90000377e90 R08: 0000003a3e8206e2 R09: 0000000000000001
[  192.291956] R10: ffffc90000357e90 R11: 000000000000016c R12: 0000000000000001
[  192.293617] R13: ffff8800570fcd00 R14: 0000000000000000 R15: 0000000000000000
[  192.295314]  default_idle+0x20/0x110
[  192.296430]  arch_cpu_idle+0xf/0x20
[  192.297544]  default_idle_call+0x23/0x30
[  192.298741]  do_idle+0x174/0x1e0
[  192.299796]  cpu_startup_entry+0x1d/0x20
[  192.301024]  start_secondary+0x126/0x150
[  192.302234]  secondary_startup_64+0xa5/0xa5
[  192.303445] Code: 4c 8d 6c c5 90 49 8b 45 00 48 85 c0 74 de 4d 8b 7d 00 4d 89 7c 24 08 0f 1f 44 00 00 49 8b 07 49 8b 57 08 48 85 c0 48 89 02 74 04 <48> 89 50 08 41 f6 47 2a 20 49 c7 47 08 00 00 00 00 4c 89 e7 4d 
[  192.307859] RIP: run_timer_softirq+0x13a/0x470 RSP: ffff880059f03ec8
[  192.309393] CR2: 0000000000010007
[  192.310527] ---[ end trace 2e82b56d43f73bf8 ]---
[  192.311799] Kernel panic - not syncing: Fatal exception in interrupt

[  355.032077] ieee80211 phy0: mac80211_hwsim_bss_info_changed(changed=0x80209f vif->addr=02:00:00:00:00:00)
[  355.034265] ieee80211 phy0: mac80211_hwsim_bss_info_changed: BSSID changed: 00:00:00:00:00:00
[  355.036522] ieee80211 phy0:   ASSOC: assoc=0 aid=1
[  355.037757] ieee80211 phy0:   ERP_CTS_PROT: 0
[  355.038981] ieee80211 phy0:   ERP_PREAMBLE: 0
[  355.040084] BUG: unable to handle kernel NULL pointer dereference at           (null)
[  355.040086] IP:           (null)
[  355.040087] PGD 0 P4D 0 
[  355.040089] Oops: 0010 [#1] SMP
[  355.040090] Modules linked in: cmac ccm arc4 mac80211_hwsim mac80211 cfg80211 rfkill rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sr_mod cdrom sg ata_generic pata_acpi sb_edac crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc ppdev aesni_intel crypto_simd glue_helper cryptd serio_raw snd_pcm snd_timer snd soundcore parport_pc pcspkr floppy parport ata_piix i2c_piix4 libata ip_tables
[  355.040114] CPU: 1 PID: 7283 Comm: wpa_supplicant Not tainted 4.14.0-rc6 #1
[  355.040115] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[  355.040116] task: ffff880007b48000 task.stack: ffffc90000694000
[  355.040117] RIP: 0010:          (null)
[  355.040117] RSP: 0018:ffff880059f03e88 EFLAGS: 00010206
[  355.040118] RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff8800041fb400
[  355.040119] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000001
[  355.040120] RBP: ffff880059f03eb8 R08: ffff880059f12810 R09: ffff880059f03ed8
[  355.040120] R10: ffff880059f12330 R11: 00000000000001ce R12: 0000000000000100
[  355.040121] R13: ffff8800041fb400 R14: 0000000000000000 R15: 0000000000000001
[  355.040122] FS:  00007fc0ef5dc480(0000) GS:ffff880059f00000(0000) knlGS:0000000000000000
[  355.040123] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  355.040124] CR2: 0000000000000000 CR3: 0000000008467002 CR4: 00000000001606e0
[  355.040126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  355.040127] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  355.040128] Call Trace:
[  355.040129]  <IRQ>
[  355.040133]  ? call_timer_fn+0x35/0x150
[  355.040136]  run_timer_softirq+0x1ee/0x470
[  355.040138]  ? kvm_clock_get_cycles+0x25/0x30
[  355.040140]  ? ktime_get+0x40/0xa0
[  355.040142]  __do_softirq+0x104/0x2ab
[  355.040145]  irq_exit+0xf1/0x100
[  355.040147]  smp_apic_timer_interrupt+0x69/0x140
[  355.040148]  apic_timer_interrupt+0x9d/0xb0
[  355.040149]  </IRQ>
[  355.040153] RIP: 0010:console_unlock+0x1f0/0x4f0
[  355.040153] RSP: 0018:ffffc90000697660 EFLAGS: 00000247 ORIG_RAX: ffffffffffffff10
[  355.040154] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ffffffff
[  355.040155] RDX: ffffc90000697618 RSI: 0000000000000004 RDI: 0000000000000247
[  355.040155] RBP: ffffc90000697698 R08: 0000000000000000 R09: 0000000000000000
[  355.040156] R10: ffff8800000bb3e0 R11: 0000000082354601 R12: 0000000000000031
[  355.040157] R13: ffffffff82075560 R14: 0000000000000000 R15: ffffffff823546a0
[  355.040159]  vprintk_emit+0x302/0x3b0
[  355.040163]  dev_vprintk_emit+0xff/0x200
[  355.040167]  ? __slab_free+0xa9/0x2c0
[  355.040169]  ? __slab_free+0xa9/0x2c0
[  355.040170]  dev_printk_emit+0x3b/0x50
[  355.040171]  __dev_printk+0x3c/0x80
[  355.040173]  dev_printk+0x47/0x50
[  355.040177]  mac80211_hwsim_bss_info_changed+0x182/0x3b0 [mac80211_hwsim]
[  355.040206]  ieee80211_bss_info_change_notify+0xbd/0x1a0 [mac80211]
[  355.040220]  ieee80211_set_disassoc+0x21d/0x3b0 [mac80211]
[  355.040233]  ieee80211_mgd_auth+0x36c/0x390 [mac80211]
[  355.040246]  ieee80211_auth+0x18/0x20 [mac80211]
[  355.040264]  cfg80211_mlme_auth+0xef/0x1f0 [cfg80211]
[  355.040274]  nl80211_authenticate+0x2db/0x320 [cfg80211]
[  355.040277]  genl_family_rcv_msg+0x1c6/0x380
[  355.040279]  genl_rcv_msg+0x4c/0x90
[  355.040281]  ? __kmalloc_node_track_caller+0x218/0x2d0
[  355.040283]  ? genl_family_rcv_msg+0x380/0x380
[  355.040284]  netlink_rcv_skb+0xdc/0x100
[  355.040286]  genl_rcv+0x28/0x40
[  355.040287]  netlink_unicast+0x178/0x210
[  355.040289]  netlink_sendmsg+0x2a1/0x390
[  355.040291]  sock_sendmsg+0x38/0x50
[  355.040292]  ___sys_sendmsg+0x2a3/0x2b0
[  355.040294]  ? generic_perform_write+0x132/0x1a0
[  355.040296]  ? __generic_file_write_iter+0x185/0x1c0
[  355.040297]  ? __might_sleep+0x4a/0x80
[  355.040298]  ? generic_file_write_iter+0xf5/0x1d0
[  355.040300]  ? __vfs_write+0xd3/0x150
[  355.040301]  __sys_sendmsg+0x45/0x80
[  355.040303]  ? __sys_sendmsg+0x45/0x80
[  355.040304]  SyS_sendmsg+0x12/0x20
[  355.040305]  entry_SYSCALL_64_fastpath+0x1a/0xa5
[  355.040306] RIP: 0033:0x7fc0ed7aeb77
[  355.040307] RSP: 002b:00007ffee2e19348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  355.040308] RAX: ffffffffffffffda RBX: 00007ffee2e19410 RCX: 00007fc0ed7aeb77
[  355.040308] RDX: 0000000000000000 RSI: 00007ffee2e193d0 RDI: 0000000000000007
[  355.040309] RBP: 00007ffee2e194b0 R08: 0000000000000000 R09: 00000000000000f0
[  355.040309] R10: 0000000000000064 R11: 0000000000000246 R12: 0000000000000000
[  355.040310] R13: 0000000000000005 R14: 0000000000000000 R15: 00000000000000a0
[  355.040311] Code:  Bad RIP value.
[  355.040315] RIP:           (null) RSP: ffff880059f03e88
[  355.040315] CR2: 0000000000000000
[  355.040318] ---[ end trace 09dd654f779f8114 ]---
[  355.040319] Kernel panic - not syncing: Fatal exception in interrupt

[  637.493893] 
[  637.503113] aftersleep: 1509160694.376269, aftersend: 1509160694.376308, nextTx: 1509160691.813570
[  637.503127] 
[  637.505683] Shutting ./send-data down.
[  637.505693] 
[  692.501365] INFO: rcu_sched self-detected stall on CPU
[  692.501376] 	0-...: (1 GPs behind) idle=7e2/140000000000002/0 softirq=22704/22705 fqs=2 
[  692.501377] 	 (t=563642 jiffies g=16442 c=16441 q=112906)
[  692.501387] rcu_sched kthread starved for 563642 jiffies! g16442 c16441 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=2
[  692.501391] rcu_sched       I    0     8      2 0x80000000
[  692.501397] Call Trace:
[  692.501415]  __schedule+0x3c0/0x850
[  692.501421]  schedule+0x3d/0x90
[  692.501427]  schedule_timeout+0x161/0x350
[  692.501434]  ? call_timer_fn+0x150/0x150
[  692.501441]  rcu_gp_kthread+0x554/0x960
[  692.501445]  ? rcu_gp_kthread+0x554/0x960
[  692.501453]  kthread+0x114/0x150
[  692.501457]  ? rcu_note_context_switch+0x160/0x160
[  692.501462]  ? kthread_create_on_node+0x40/0x40
[  692.501478]  ret_from_fork+0x25/0x30
[  692.501500] NMI backtrace for cpu 0
[  692.501506] CPU: 0 PID: 4649 Comm: date Not tainted 4.14.0-rc6 #1
[  692.501508] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[  692.501510] Call Trace:
[  692.501512]  <IRQ>
[  692.501519]  dump_stack+0x63/0x86
[  692.501524]  nmi_cpu_backtrace+0xca/0xd0
[  692.501530]  ? irq_force_complete_move+0x140/0x140
[  692.501535]  nmi_trigger_cpumask_backtrace+0xea/0x120
[  692.501540]  arch_trigger_cpumask_backtrace+0x19/0x20
[  692.501545]  rcu_dump_cpu_stacks+0xa0/0xd5
[  692.501550]  rcu_check_callbacks+0x7b4/0x910
[  692.501557]  ? update_wall_time+0x443/0x6f0
[  692.501562]  ? tick_sched_do_timer+0x60/0x60
[  692.501566]  update_process_times+0x2f/0x60
[  692.501569]  tick_sched_handle+0x2a/0x60
[  692.501573]  tick_sched_timer+0x39/0x80
[  692.501578]  __hrtimer_run_queues+0xdd/0x230
[  692.501583]  hrtimer_interrupt+0xa3/0x1f0
[  692.501589]  smp_apic_timer_interrupt+0x5f/0x140
[  692.501594]  apic_timer_interrupt+0x9d/0xb0
[  692.501599] RIP: 0010:__do_softirq+0x70/0x2ab
[  692.501601] RSP: 0000:ffff88017fc03f50 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10
[  692.501605] RAX: 0000000000019800 RBX: ffff88017fc0d600 RCX: 00000000000006e0
[  692.501608] RDX: 0000000000000002 RSI: 0000000000400000 RDI: 00000000000006e0
[  692.501610] RBP: ffff88017fc03fb0 R08: 00000031cf097d88 R09: 0000001e00984cc0
[  692.501612] R10: 0000000000000000 R11: 00000000000003fe R12: 0000000000000000
[  692.501614] R13: ffff880135f90000 R14: ffffc90001873f58 R15: 0000000000000000
[  692.501623]  ? hrtimer_interrupt+0x112/0x1f0
[  692.501628]  irq_exit+0xf1/0x100
[  692.501633]  smp_apic_timer_interrupt+0x69/0x140
[  692.501637]  apic_timer_interrupt+0x9d/0xb0
[  692.501688]  </IRQ>
[  692.501695] RIP: 0010:exit_to_usermode_loop+0x52/0xb0
[  692.501698] RSP: 0000:ffffc90001873f08 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10
[  692.501702] RAX: 0000000000000008 RBX: 0000000000000008 RCX: ffffffff81e10480
[  692.501704] RDX: 0140000000000000 RSI: 0000000000000008 RDI: ffffc90001873f58
[  692.501706] RBP: ffffc90001873f28 R08: 0000000000000000 R09: 0000000000000000
[  692.501708] R10: ffff88017fc03e30 R11: 000000000000b6cd R12: ffff880135f90000
[  692.501711] R13: ffff880135f90000 R14: ffffc90001873f58 R15: 0000000000000000
[  692.501719]  prepare_exit_to_usermode+0x7a/0xa0
[  692.501723]  retint_user+0x8/0x10
[  692.501727] RIP: 0033:0x7f7689bdf9e0
[  692.501729] RSP: 002b:00007ffd2be7f4f8 EFLAGS: 00010202 ORIG_RAX: ffffffffffffff02
[  692.501732] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  692.501734] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd2be7f500
[  692.501736] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  692.501738] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[  692.501740] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[  692.502982] nfs: server inn not responding, still trying
[  692.515524] NETDEV WATCHDOG: eth0 (e1000): transmit queue 0 timed out
[  692.515635] ------------[ cut here ]------------
[  692.515652] WARNING: CPU: 2 PID: 1 at net/sched/sch_generic.c:320 dev_watchdog+0x22d/0x240
[  692.515655] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sr_mod cdrom sg ata_generic pata_acpi ppdev snd_pcm snd_timer snd serio_raw soundcore pcspkr parport_pc i2c_piix4 floppy parport ata_piix libata ip_tables
[  692.515706] CPU: 2 PID: 1 Comm: systemd Not tainted 4.14.0-rc6 #1
[  692.515710] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[  692.515714] task: ffff88016d1c8000 task.stack: ffffc90000c54000
[  692.515722] RIP: 0010:dev_watchdog+0x22d/0x240
[  692.515726] RSP: 0018:ffff88017fd03e50 EFLAGS: 00010282
[  692.515730] RAX: 0000000000000039 RBX: 0000000000000000 RCX: 0000000000000002
[  692.515733] RDX: 0000000000000001 RSI: 0000000000000002 RDI: 0000000000000292
[  692.515737] RBP: ffff88017fd03e80 R08: 00000103cb4cbce8 R09: 0000000000000039
[  692.515740] R10: ffff88017fd12330 R11: 000000000007c9cc R12: 0000000000000001
[  692.515743] R13: 0000000000000002 R14: ffff88014c8b6000 R15: ffff88013fc52e80
[  692.515756] FS:  00007f9d83ce3900(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
[  692.515760] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  692.515763] CR2: 00007f2c8a838c80 CR3: 000000013fd39000 CR4: 00000000000006e0
[  692.515774] Call Trace:
[  692.515779]  <IRQ>
[  692.515792]  ? qdisc_rcu_free+0x50/0x50
[  692.515801]  call_timer_fn+0x35/0x150
[  692.515808]  run_timer_softirq+0x1ee/0x470
[  692.515816]  ? kvm_clock_get_cycles+0x25/0x30
[  692.515824]  ? ktime_get+0x40/0xa0
[  692.515833]  __do_softirq+0x104/0x2ab
[  692.515938]  irq_exit+0xf1/0x100
[  692.515950]  smp_apic_timer_interrupt+0x69/0x140
[  692.515959]  apic_timer_interrupt+0x9d/0xb0
[  692.515964]  </IRQ>
[  692.515976] RIP: 0010:console_unlock+0x1f0/0x4f0
[  692.515980] RSP: 0018:ffffc90000c57b30 EFLAGS: 00000247 ORIG_RAX: ffffffffffffff10
[  692.515989] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000ffffffff
[  692.515993] RDX: ffffc90000c57ae8 RSI: 0000000000000004 RDI: 0000000000000247
[  692.515997] RBP: ffffc90000c57b68 R08: 0000000000000000 R09: 0000000000000000
[  692.516022] R10: ffff8800000bc380 R11: 0000000082354601 R12: 000000000000003a
[  692.516095] R13: ffffffff82075560 R14: 0000000000000000 R15: ffffffff823546a0
[  692.516117]  console_device+0x4e/0x60
[  692.516130]  tty_lookup_driver+0x71/0xc0
[  692.516139]  tty_open+0x18e/0x420
[  692.516154]  chrdev_open+0xb4/0x1c0
[  692.516168]  do_dentry_open+0x1fc/0x300
[  692.516177]  ? cdev_put+0x30/0x30
[  692.516188]  vfs_open+0x4f/0x70
[  692.516198]  path_openat+0x5dd/0x13f0
[  692.516210]  ? __radix_tree_delete+0x8c/0xb0
[  692.516225]  do_filp_open+0x8a/0xf0
[  692.516239]  ? __might_sleep+0x4a/0x80
[  692.516247]  ? getname_flags+0x4f/0x1f0
[  692.516258]  ? kmem_cache_alloc+0x173/0x1c0
[  692.516269]  do_sys_open+0x123/0x200
[  692.516277]  ? do_sys_open+0x123/0x200
[  692.516287]  SyS_open+0x1e/0x20
[  692.516296]  entry_SYSCALL_64_fastpath+0x1a/0xa5
[  692.516303] RIP: 0033:0x7f9d825967f0
[  692.516308] RSP: 002b:00007ffd25c7b408 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[  692.516315] RAX: ffffffffffffffda RBX: 000000000000002d RCX: 00007f9d825967f0
[  692.516320] RDX: 0000000000000000 RSI: 0000000000080101 RDI: 0000555b6e5c9546
[  692.516324] RBP: fffffffffffffe10 R08: 0000555b7024c960 R09: 6f43206c61636f00
[  692.516329] R10: 6c6962697461706d R11: 0000000000000246 R12: 0000000000000000
[  692.516333] R13: 00000000ffffffff R14: 00007ffd25c7b5f0 R15: 0000000000000000
[  692.516342] Code: 63 8e 60 04 00 00 eb 95 4c 89 f7 c6 05 08 cd 7f 00 01 e8 77 6f fd ff 89 d9 48 89 c2 4c 89 f6 48 c7 c7 b0 a5 d5 81 e8 54 1e 8c ff <0f> ff eb c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 
[  692.516459] ---[ end trace 8718dce5c9fa325b ]---
[  692.520507] e1000 0000:00:03.0 eth0: Reset adapter

.config attached.

Thanks,
Fengguang