Messages in this thread | | | Date | Thu, 9 Nov 2017 12:09:45 +0800 | From | Fengguang Wu <> | Subject | Re: [vlan_device_event] BUG: unable to handle kernel paging request at 6b6b6ccf |
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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
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