On Thu, Nov 09, 2017 at 11:12:06AM +0800, Fengguang Wu wrote:
Hi Alex,
So looking over the trace the panic seems to be happening after a
decnet interface is getting deleted. Is there any chance we could try
compiling the kernel without decnet support to see if that is the
source of these issues? I don't know if anyone on the Intel Wired Lan
team is testing with that enabled so if we can eliminate that as a
possible cause that would be useful.
Sure and thank you for the suggestion!
It looks disabling DECNET still triggers the vlan_device_event BUG.
However when looking at the dmesgs, I find another warning just before
the vlan_device_event BUG. Not sure if it's related one or independent
now-fixed issue.
Please press Enter to activate this console.
[ 1291.938326] Writes: Total: 2 Max/Min: 0/0 Fail: 0
[ 1297.731690] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 1297.828227] 8021q: adding VLAN 0 to HW filter on device eth0
[ 1300.506245] 8021q: adding VLAN 0 to HW filter on device eth0
[ 1302.467460] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
LKP: HOSTNAME vm-lkp-wsx03-openwrt-i386-10, MAC , kernel 4.13.0 1, serial
console /dev/ttyS0
[ 1304.161688] Kernel tests: Boot OK!
[ 1306.558532] 8021q: adding VLAN 0 to HW filter on device eth0
[ 1308.507499] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 1310.526380] 8021q: adding VLAN 0 to HW filter on device eth0
[ 1311.246017] LKP: waiting for network...
[ 1312.543432] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 1313.985807]
[ 1313.991541] =====================================
[ 1314.002398] WARNING: bad unlock balance detected!
[ 1314.013154] 4.13.0 #1 Not tainted
[ 1314.021549] -------------------------------------
[ 1314.032505] procd/1244 is trying to release lock (rcu_preempt_state) at:
[ 1314.047216] [<c10e5840>] rcu_read_unlock_special+0x580/0x5b0
[ 1314.059825] but there are no more locks to release!
[ 1314.070546]
[ 1314.070546] other info that might help us debug this:
[ 1314.085941] 2 locks held by procd/1244:
[ 1314.095139] #0: (&sig->cred_guard_mutex){......}, at: [<c12587b8>]
prepare_bprm_creds+0x28/0xc0
[ 1314.114616] #1: (rcu_read_lock){......}, at: [<c1260140>]
path_init+0x490/0x6f0
[ 1314.132155]
[ 1314.132155] stack backtrace:
[ 1314.144402] CPU: 0 PID: 1244 Comm: procd Not tainted 4.13.0 #1
[ 1314.160197] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 1314.179404] Call Trace:
[ 1314.186768] dump_stack+0x16/0x1c
[ 1314.195387] print_unlock_imbalance_bug+0xb9/0xd0
[ 1314.205753] ? rcu_read_unlock_special+0x580/0x5b0
[ 1314.216381] ? rcu_read_unlock_special+0x580/0x5b0
[ 1314.226982] lock_release+0x1cc/0x490
[ 1314.235602] ? rcu_gp_kthread_wake+0x34/0x50
[ 1314.245262] ? rcu_read_unlock_special+0x580/0x5b0
[ 1314.255724] rt_mutex_unlock+0x1e/0xb0
[ 1314.264610] rcu_read_unlock_special+0x580/0x5b0
[ 1314.274814] __rcu_read_unlock+0xa7/0xb0
[ 1314.283954] unlazy_walk+0xcf/0x1f0
[ 1314.292409] trailing_symlink+0x349/0x4e0
[ 1314.301583] path_openat+0x333/0x1280
[ 1314.310197] do_filp_open+0x67/0x140
[ 1314.318696] ? getname_kernel+0x23/0x1e0
[ 1314.327766] ? cache_alloc_debugcheck_after+0x13a/0x2a0
[ 1314.340076] ? getname_kernel+0x23/0x1e0
[ 1314.349179] do_open_execat+0xab/0x2a0
[ 1314.358063] open_exec+0x57/0x80
[ 1314.366128] load_script+0x33c/0x3d0
[ 1314.374556] ? kvm_sched_clock_read+0x9/0x20
[ 1314.384219] ? sched_clock+0x9/0x10
[ 1314.392611] ? sched_clock_cpu+0x1a/0x1e0
[ 1314.401875] ? _raw_read_unlock+0x55/0x90
[ 1314.411080] search_binary_handler+0xd9/0x160
[ 1314.420799] do_execveat_common+0x8f6/0xb10
[ 1314.430334] SyS_execve+0x1f/0x30
[ 1314.438458] do_int80_syscall_32+0x95/0x1b0
[ 1314.447956] entry_INT80_32+0x2f/0x2f
[ 1314.456606] EIP: 0xb7e9ab07
[ 1314.464062] EFLAGS: 00000296 CPU: 0
[ 1314.472421] EAX: ffffffda EBX: 0807b584 ECX: bfb0fd70 EDX: 08061250
[ 1314.485257] ESI: 0807b584 EDI: 00000000 EBP: bfb0fd58 ESP: bfb0fd28
[ 1314.498024] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 1314.613681] hotplug-call (1244) used greatest stack depth: 6384 bytes left
[ 1314.957636] 8021q: adding VLAN 0 to HW filter on device eth0
[ 1316.955154] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 1318.197800] 8021q: adding VLAN 0 to HW filter on device eth0
[ 1320.222754] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 1321.409456] BUG: unable to handle kernel paging request at 6b6b6f4f
[ 1321.421942] IP: vlan_device_event+0x7f5/0xa40
[ 1321.431239] *pde = 00000000
Note that this call trace is different from the ones posted in earlier
emails.
[ 1321.431267]
[ 1321.443356] Oops: 0000 [#1] PREEMPT
[ 1321.451390] CPU: 0 PID: 798 Comm: netifd Not tainted 4.13.0 #1
[ 1321.462802] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 1321.479743] task: cf8ae5c0 task.stack: cf114000
[ 1321.489345] EIP: vlan_device_event+0x7f5/0xa40
[ 1321.498701] EFLAGS: 00010206 CPU: 0
[ 1321.506683] EAX: 000000f9 EBX: 00000002 ECX: 00000001 EDX: 6b6b6b6b
[ 1321.518893] ESI: 000014f9 EDI: cf3ec700 EBP: cf115dd8 ESP: cf115da4
[ 1321.531044] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 1321.541906] CR0: 80050033 CR2: 6b6b6f4f CR3: 10a02000 CR4: 00000690
[ 1321.554097] Call Trace:
[ 1321.560423] ? __local_bh_enable_ip+0xf6/0x1a0
[ 1321.569987] ? _raw_write_unlock_bh+0x2a/0x30
[ 1321.579393] notifier_call_chain+0x4e/0xa0
[ 1321.588336] raw_notifier_call_chain+0xc/0x10
[ 1321.597604] call_netdevice_notifiers_info+0x59/0x90
[ 1321.607779] __dev_notify_flags+0xea/0x130
[ 1321.616697] dev_change_flags+0x60/0x70
[ 1321.625255] dev_ifsioc+0x47b/0x5a0
[ 1321.633354] ? mutex_lock_nested+0x14/0x20
[ 1321.642292] dev_ioctl+0x36f/0xb20
[ 1321.650403] sock_ioctl+0x1cd/0x350
[ 1321.658401] ? sock_fasync+0xb0/0xb0
[ 1321.666573] vfs_ioctl+0x33/0x70
[ 1321.674214] do_vfs_ioctl+0x8d/0xc60
[ 1321.682384] ? kmem_cache_free+0x186/0x290
[ 1321.691201] ? putname+0x9f/0xe0
[ 1321.698876] ? putname+0x9f/0xe0
[ 1321.706491] ? do_sys_open+0x28d/0x420
[ 1321.714920] ? __fget_light+0xb7/0xf0
[ 1321.723153] SyS_ioctl+0x98/0xb0
[ 1321.730961] do_int80_syscall_32+0x95/0x1b0
[ 1321.740064] entry_INT80_32+0x2f/0x2f
[ 1321.748335] EIP: 0xb7eb9648
[ 1321.755299] EFLAGS: 00000246 CPU: 0
[ 1321.763209] EAX: ffffffda EBX: 00000005 ECX: 00008914 EDX: bfed0640
[ 1321.775289] ESI: bfed0640 EDI: bfed0660 EBP: bfed0678 ESP: bfed060c
[ 1321.787449] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 1321.798394] Code: 8d f4 5d b3 c4 8d 56 01 89 14 8d f4 5d b3 c4 0f 85 03 02 00 00
89 7d d4 31 f6 8b 7d d8 e9 84 00 00 00 8d 74 26 00 25 ff 01 00 00 <8b> 1c 82 31
d2 85 db 0f 95 c2 8b 04 95 e0 5d b3 c4 83 c0 01 85
[ 1321.833755] EIP: vlan_device_event+0x7f5/0xa40 SS:ESP: 0068:cf115da4
[ 1321.846005] CR2: 000000006b6b6f4f
[ 1321.431267]
Attached is the full .config and dmesg. Please don't waste time on reproducing
-- it's not quite possible since it seems to only happen in one of our
host machine.
Here are the faddr2line parsed 4.11 call traces:
[ 194.685204] wait for background monitors: 1164 oom-killer
[ 196.712107] BUG: unable to handle kernel paging request at 6b6b6e73
[ 196.725844] IP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 196.735827] *pde = 00000000
[ 196.735855]
[ 196.749561] Oops: 0000 [#1] PREEMPT
[ 196.769520] CPU: 0 PID: 797 Comm: netifd Not tainted 4.11.0 #1
[ 196.792728] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 196.821634] task: cfcc9000 task.stack: cfc7e000
[ 196.831969] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 196.842019] EFLAGS: 00010202 CPU: 0
[ 196.850925] EAX: 000000c2 EBX: 00000002 ECX: 00000000 EDX: 6b6b6b6b
[ 196.863985] ESI: 000008c2 EDI: d08c0f00 EBP: cfc7fdd4 ESP: cfc7fda0
[ 196.876463] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 196.887903] CR0: 80050033 CR2: 6b6b6e73 CR3: 10f0b000 CR4: 00000690
[ 196.900970] Call Trace:
[ 196.907905] ? dn_dev_delete+0x18c/0x1b0:
dn_dev_delete at net/decnet/dn_dev.c:1219
[ 196.917749] ? dn_dev_down+0x69/0x80:
dn_dev_down at net/decnet/dn_dev.c:1235
[ 196.926701] notifier_call_chain+0x4e/0xa0:
notifier_call_chain at kernel/notifier.c:95 (discriminator 1)
--
[ 197.042320] do_vfs_ioctl+0x91/0xcc0:
do_vfs_ioctl at fs/ioctl.c:685
[ 197.051621] ? kmem_cache_free+0x124/0x270:
kmem_cache_free at include/linux/rcupdate.h:981
[ 197.061767] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 197.080497] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 197.098679] ? do_sys_open+0x271/0x3e0:
do_sys_open at fs/open.c:1062
[ 197.108071] ? __fget_light+0xb7/0xf0:
__fget_light at fs/file.c:752 (discriminator 2)
[ 197.127385] SyS_ioctl+0x96/0xb0:
SyS_ioctl at fs/ioctl.c:700
[ 197.136262] do_int80_syscall_32+0x95/0x1b0:
do_int80_syscall_32 at arch/x86/entry/common.c:323
[ 197.146639] entry_INT80_32+0x2f/0x2f:
restore_all at arch/x86/entry/entry_32.S:530
[ 197.155513] EIP: 0xb7727648
[ 197.162874] EFLAGS: 00000246 CPU: 0
[ 197.171852] EAX: ffffffda EBX: 00000005 ECX: 00008914 EDX: bff1f5d0
[ 197.184875] ESI: bff1f5d0 EDI: bff1f5f0 EBP: bff1f608 ESP: bff1f59c
[ 197.198320] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 197.210120] Code: 8d fc a1 8d c4 8d 56 01 89 14 8d fc a1 8d c4 0f 85 b4 02 00 00
89 7d d8 31 f6 8b 7d e0 e9 84 00 00 00 8d 74 26 00 25 ff 01 00 00 <8b> 1c 82 31
d2 85 db 0f 95 c2 8b 04 95 e8 a1 8d c4 83 c0 01 85
[ 197.249301] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59 SS:ESP: 0068:cfc7fda0
[ 197.262812] CR2: 000000006b6b6e73
[ 199.290882] /bin/busybox wget -q
http://inn:80/~lkp/cgi-bin/lkp-jobfile-append-var?job_file=/lkp/scheduled/vm-lkp-wsx03-openwrt-i386-11/trinity-300s-openwrt-i386-2016-03-16.cgz-a351e9b9fc24e982ec2f0e76379a49826036da12-20171109-13235-ab6tcc-wait_kernel-4.yaml&loadavg=5.12%202.92%201.17%204/93%201360&start_time=1510191311&end_time=1510191314&version=/lkp/lkp/.src-20171109-011142&;
-O /dev/null
[ 199.356767] wget: socket(AF_INET,1,0): Address family not supported by
protocol
[ 199.474622] ---[ end trace a8f7db573cc5216e ]---
[ 199.474631] Kernel panic - not syncing: Fatal exception
[ 199.474660] Kernel Offset: disabled
[ 199.534708] Rebooting in 3 seconds..
Elapsed time: 210
--
[ 180.393049] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 182.599047] BUG: unable to handle kernel paging request at 6b6b7147
[ 182.613337] IP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 182.619888] *pde = 00000000
[ 182.619914]
[ 182.628048] Oops: 0000 [#1] PREEMPT
[ 182.633526] CPU: 0 PID: 825 Comm: netifd Not tainted 4.11.0 #1
[ 182.641430] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 182.652999] task: d14d4000 task.stack: d0f08000
[ 182.662367] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 182.669241] EFLAGS: 00010206 CPU: 0
[ 182.676657] EAX: 00000177 EBX: 00000002 ECX: 00000000 EDX: 6b6b6b6b
[ 182.689423] ESI: 00000177 EDI: d0f60380 EBP: d0f09dd4 ESP: d0f09da0
[ 182.702454] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 182.714021] CR0: 80050033 CR2: 6b6b7147 CR3: 1377b000 CR4: 00000690
[ 182.882308] Call Trace:
[ 182.889342] ? dn_dev_delete+0x18c/0x1b0:
dn_dev_delete at net/decnet/dn_dev.c:1219
[ 182.898571] ? dn_dev_down+0x69/0x80:
dn_dev_down at net/decnet/dn_dev.c:1235
[ 182.907290] notifier_call_chain+0x4e/0xa0:
notifier_call_chain at kernel/notifier.c:95 (discriminator 1)
--
[ 183.008332] do_vfs_ioctl+0x91/0xcc0:
do_vfs_ioctl at fs/ioctl.c:685
[ 183.017013] ? kmem_cache_free+0x124/0x270:
kmem_cache_free at include/linux/rcupdate.h:981
[ 183.026481] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 183.034490] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 183.043013] ? do_sys_open+0x271/0x3e0:
do_sys_open at fs/open.c:1062
[ 183.051952] ? __fget_light+0xb7/0xf0:
__fget_light at fs/file.c:752 (discriminator 2)
[ 183.060765] SyS_ioctl+0x96/0xb0:
SyS_ioctl at fs/ioctl.c:700
[ 183.068929] do_int80_syscall_32+0x95/0x1b0:
do_int80_syscall_32 at arch/x86/entry/common.c:323
[ 183.078625] entry_INT80_32+0x2f/0x2f:
restore_all at arch/x86/entry/entry_32.S:530
[ 183.087469] EIP: 0xb7730648
[ 183.094893] EFLAGS: 00000246 CPU: 0
[ 183.103476] EAX: ffffffda EBX: 00000005 ECX: 00008914 EDX: bfa14970
[ 183.116369] ESI: bfa14970 EDI: bfa14990 EBP: bfa149a8 ESP: bfa1493c
[ 183.129277] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 183.140907] Code: 8d fc a1 8d c4 8d 56 01 89 14 8d fc a1 8d c4 0f 85 b4 02 00 00
89 7d d8 31 f6 8b 7d e0 e9 84 00 00 00 8d 74 26 00 25 ff 01 00 00 <8b> 1c 82 31
d2 85 db 0f 95 c2 8b 04 95 e8 a1 8d c4 83 c0 01 85
[ 183.174933] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59 SS:ESP: 0068:d0f09da0
[ 183.183587] CR2: 000000006b6b7147
[ 184.194926] LKP: waiting for network...
[ 184.746928] ---[ end trace c7ee9b1b350863af ]---
[ 184.782874] Kernel panic - not syncing: Fatal exception
[ 184.815306] Kernel Offset: disabled
[ 184.823836] Rebooting in 3 seconds..
Elapsed time: 190
--
[ 183.673561] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 184.515624] BUG: unable to handle kernel paging request at 6b6b7023
[ 184.524212] IP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 184.530509] *pde = 00000000
[ 184.530535]
[ 184.538642] Oops: 0000 [#1] PREEMPT
[ 184.544085] CPU: 0 PID: 840 Comm: netifd Not tainted 4.11.0 #1
[ 184.551887] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 184.569331] task: d1382000 task.stack: d12f6000
[ 184.578697] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 184.589091] EFLAGS: 00010206 CPU: 0
[ 184.597582] EAX: 0000012e EBX: 00000002 ECX: 00000001 EDX: 6b6b6b6b
[ 184.610288] ESI: 00001b2e EDI: d1430880 EBP: d12f7dd4 ESP: d12f7da0
[ 184.622995] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 184.634749] CR0: 80050033 CR2: 6b6b7023 CR3: 112d9000 CR4: 00000690
[ 184.644895] Call Trace:
[ 184.649242] ? dn_dev_delete+0x18c/0x1b0:
dn_dev_delete at net/decnet/dn_dev.c:1219
[ 184.655134] ? dn_dev_down+0x69/0x80:
dn_dev_down at net/decnet/dn_dev.c:1235
[ 184.661137] notifier_call_chain+0x4e/0xa0:
notifier_call_chain at kernel/notifier.c:95 (discriminator 1)
--
[ 184.757796] do_vfs_ioctl+0x91/0xcc0:
do_vfs_ioctl at fs/ioctl.c:685
[ 184.763308] ? kmem_cache_free+0x124/0x270:
kmem_cache_free at include/linux/rcupdate.h:981
[ 184.769403] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 184.774518] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 184.781752] ? do_sys_open+0x271/0x3e0:
do_sys_open at fs/open.c:1062
[ 184.790883] ? __fget_light+0xb7/0xf0:
__fget_light at fs/file.c:752 (discriminator 2)
[ 184.800766] SyS_ioctl+0x96/0xb0:
SyS_ioctl at fs/ioctl.c:700
[ 184.810041] do_int80_syscall_32+0x95/0x1b0:
do_int80_syscall_32 at arch/x86/entry/common.c:323
[ 184.819724] entry_INT80_32+0x2f/0x2f:
restore_all at arch/x86/entry/entry_32.S:530
[ 184.828896] EIP: 0xb76b6648
[ 184.836320] EFLAGS: 00000246 CPU: 0
[ 184.844521] EAX: ffffffda EBX: 00000005 ECX: 00008914 EDX: bff988c0
[ 184.857641] ESI: bff988c0 EDI: bff988e0 EBP: bff988f8 ESP: bff9888c
[ 184.870665] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 184.882792] Code: 8d fc a1 8d c4 8d 56 01 89 14 8d fc a1 8d c4 0f 85 b4 02 00 00
89 7d d8 31 f6 8b 7d e0 e9 84 00 00 00 8d 74 26 00 25 ff 01 00 00 <8b> 1c 82 31
d2 85 db 0f 95 c2 8b 04 95 e8 a1 8d c4 83 c0 01 85
[ 184.920418] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59 SS:ESP: 0068:d12f7da0
[ 184.932108] CR2: 000000006b6b7023
[ 185.887101] ---[ end trace cb1ea16ac74a42c5 ]---
[ 185.923169] Kernel panic - not syncing: Fatal exception
[ 185.933931] Kernel Offset: disabled
[ 185.941930] Rebooting in 3 seconds..
Elapsed time: 200
initrds=(
--
[ 187.387267] Kernel tests: Boot OK!
[ 187.599199] BUG: unable to handle kernel paging request at 00010469
[ 187.612158] IP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 187.621886] *pde = 00000000
[ 187.621914]
[ 187.634461] Oops: 0000 [#1] PREEMPT
[ 187.643080] CPU: 0 PID: 843 Comm: netifd Not tainted 4.11.0 #1
[ 187.655163] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 187.672953] task: d1fb4000 task.stack: d37f0000
[ 187.682807] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 187.692696] EFLAGS: 00010202 CPU: 0
[ 187.701021] EAX: 000000da EBX: 00000002 ECX: 00000001 EDX: 00010101
[ 187.713754] ESI: 000014da EDI: d1430400 EBP: d37f1dd4 ESP: d37f1da0
[ 187.726692] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 187.737968] CR0: 80050033 CR2: 00010469 CR3: 112f6000 CR4: 00000690
[ 187.750892] Call Trace:
[ 187.757538] ? dn_dev_delete+0x18c/0x1b0:
dn_dev_delete at net/decnet/dn_dev.c:1219
[ 187.766612] ? dn_dev_down+0x69/0x80:
dn_dev_down at net/decnet/dn_dev.c:1235
[ 187.775196] notifier_call_chain+0x4e/0xa0:
notifier_call_chain at kernel/notifier.c:95 (discriminator 1)
--
[ 188.034214] do_vfs_ioctl+0x91/0xcc0:
do_vfs_ioctl at fs/ioctl.c:685
[ 188.042772] ? kmem_cache_free+0x124/0x270:
kmem_cache_free at include/linux/rcupdate.h:981
[ 188.051981] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 188.060043] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 188.067987] ? do_sys_open+0x271/0x3e0:
do_sys_open at fs/open.c:1062
[ 188.076807] ? __fget_light+0xb7/0xf0:
__fget_light at fs/file.c:752 (discriminator 2)
[ 188.085329] SyS_ioctl+0x96/0xb0:
SyS_ioctl at fs/ioctl.c:700
[ 188.093430] do_int80_syscall_32+0x95/0x1b0:
do_int80_syscall_32 at arch/x86/entry/common.c:323
[ 188.102980] entry_INT80_32+0x2f/0x2f:
restore_all at arch/x86/entry/entry_32.S:530
[ 188.111665] EIP: 0xb769e648
[ 188.118966] EFLAGS: 00000246 CPU: 0
[ 188.127423] EAX: ffffffda EBX: 00000005 ECX: 00008914 EDX: bfca7f30
[ 188.140188] ESI: bfca7f30 EDI: bfca7f50 EBP: bfca7f68 ESP: bfca7efc
[ 188.152891] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 188.163971] Code: 8d fc a1 8d c4 8d 56 01 89 14 8d fc a1 8d c4 0f 85 b4 02 00 00
89 7d d8 31 f6 8b 7d e0 e9 84 00 00 00 8d 74 26 00 25 ff 01 00 00 <8b> 1c 82 31
d2 85 db 0f 95 c2 8b 04 95 e8 a1 8d c4 83 c0 01 85
[ 188.200306] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59 SS:ESP: 0068:d37f1da0
[ 188.213133] CR2: 0000000000010469
[ 190.758141] ---[ end trace e2dace73b5c3f492 ]---
[ 190.801431] Kernel panic - not syncing: Fatal exception
[ 190.813396] Kernel Offset: disabled
[ 190.822370] Rebooting in 3 seconds..
Elapsed time: 200
initrds=(
--
[ 164.885369] e1000: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control:
RX
[ 166.578856] BUG: unable to handle kernel paging request at 6b6b6dff
[ 166.592439] IP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 166.602482] *pde = 00000000
[ 166.602489]
[ 166.615576] Oops: 0000 [#1] PREEMPT
[ 166.624387] CPU: 0 PID: 854 Comm: netifd Not tainted 4.11.0 #1
[ 166.636837] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.10.2-1 04/01/2014
[ 166.655248] task: d1067000 task.stack: cec6a000
[ 166.665648] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59
[ 166.676310] EFLAGS: 00010206 CPU: 0
[ 166.685169] EAX: 000000a5 EBX: 00000002 ECX: 00000000 EDX: 6b6b6b6b
[ 166.699033] ESI: 000002a5 EDI: d08c0600 EBP: cec6bdd4 ESP: cec6bda0
[ 166.712190] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 166.879605] CR0: 80050033 CR2: 6b6b6dff CR3: 0ff72000 CR4: 00000690
[ 166.892850] Call Trace:
[ 166.899886] ? dn_dev_delete+0x18c/0x1b0:
dn_dev_delete at net/decnet/dn_dev.c:1219
[ 166.909194] ? dn_dev_down+0x69/0x80:
dn_dev_down at net/decnet/dn_dev.c:1235
[ 166.917921] notifier_call_chain+0x4e/0xa0:
notifier_call_chain at kernel/notifier.c:95 (discriminator 1)
--
[ 167.019748] do_vfs_ioctl+0x91/0xcc0:
do_vfs_ioctl at fs/ioctl.c:685
[ 167.028761] ? kmem_cache_free+0x124/0x270:
kmem_cache_free at include/linux/rcupdate.h:981
[ 167.038544] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 167.046836] ? putname+0x9f/0xe0:
putname at fs/namei.c:258
[ 167.054973] ? do_sys_open+0x271/0x3e0:
do_sys_open at fs/open.c:1062
[ 167.064009] ? __fget_light+0xb7/0xf0:
__fget_light at fs/file.c:752 (discriminator 2)
[ 167.073020] SyS_ioctl+0x96/0xb0:
SyS_ioctl at fs/ioctl.c:700
[ 167.081231] do_int80_syscall_32+0x95/0x1b0:
do_int80_syscall_32 at arch/x86/entry/common.c:323
[ 167.091042] entry_INT80_32+0x2f/0x2f:
restore_all at arch/x86/entry/entry_32.S:530
[ 167.099964] EIP: 0xb766b648
[ 167.107350] EFLAGS: 00000246 CPU: 0
[ 167.115941] EAX: ffffffda EBX: 00000005 ECX: 00008914 EDX: bf91e3e0
[ 167.128933] ESI: bf91e3e0 EDI: bf91e400 EBP: bf91e418 ESP: bf91e3ac
[ 167.142058] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
[ 167.153722] Code: 8d fc a1 8d c4 8d 56 01 89 14 8d fc a1 8d c4 0f 85 b4 02 00 00
89 7d d8 31 f6 8b 7d e0 e9 84 00 00 00 8d 74 26 00 25 ff 01 00 00 <8b> 1c 82 31
d2 85 db 0f 95 c2 8b 04 95 e8 a1 8d c4 83 c0 01 85
[ 167.191925] EIP: vlan_device_event+0x725/0xa30:
vlan_device_event at net/8021q/vlan.h:59 SS:ESP: 0068:cec6bda0
[ 167.205183] CR2: 000000006b6b6dff
[ 169.346073] ---[ end trace bdae39c57c143494 ]---
[ 169.453966] Kernel panic - not syncing: Fatal exception
[ 169.465655] Kernel Offset: disabled
[ 169.474311] Rebooting in 3 seconds..
Thanks,
Fengguang
