Warning: Permanently added '10.128.0.192' (ED25519) to the list of known hosts. 2022/02/10 03:04:43 parsed 1 programs 2022/02/10 03:04:47 executed programs: 0 login: panic: kernel diagnostic assertion "m->m_pkthdr.pf.prio <= IFQ_MAXPRIO" failed: file "/syzkaller/managers/multicore/kernel/sys/net/ifq.c", line 858 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *102370 17733 0 0x2 0 1K ifconfig 429331 43069 0 0x100002 0 0 sh db_enter() at db_enter+0x18 panic(ffffffff825739a5) at panic+0x177 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 priq_enq(ffff800000bffab0,fffffd80761e0200) at priq_enq+0x2ae ifq_enqueue(ffff800000bffab0,fffffd80761e0200) at ifq_enqueue+0x48 tun_enqueue(ffff800000bff800,fffffd80761e0200) at tun_enqueue+0x3a ether_output(ffff800000bff800,fffffd80761e0200,ffff800021314588,0) at ether_output+0xb7 ip6_output(fffffd80761e0200,0,0,1,ffff800021314728,0) at ip6_output+0x195c nd6_ns_output(ffff800000bff800,0,ffff800000bf2b48,0,1) at nd6_ns_output+0x579 nd6_dad_start(ffff800000bf2b00) at nd6_dad_start+0x341 in6_ioctl_change_ifaddr(8080691a,ffff800021314a40,ffff800000bff800) at in6_ioctl_change_ifaddr+0x54f ifioctl(fffffd806d5ff798,8080691a,ffff800021314a40,ffff8000212b6a90) at ifioctl+0xdf4 soo_ioctl(fffffd806a1b0b48,8080691a,ffff800021314a40,ffff8000212b6a90) at soo_ioctl+0x26c sys_ioctl(ffff8000212b6a90,ffff800021314b50,ffff800021314bb0) at sys_ioctl+0x4a2 end trace frame: 0xffff800021314c10, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: kernel diagnostic assertion "m->m_pkthdr.pf.prio <= IFQ_MAXPRIO" failed: file "/syzkaller/managers/multicore/kernel/sys/net/ifq.c", line 858 ddb{1}> trace db_enter() at db_enter+0x18 panic(ffffffff825739a5) at panic+0x177 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 priq_enq(ffff800000bffab0,fffffd80761e0200) at priq_enq+0x2ae ifq_enqueue(ffff800000bffab0,fffffd80761e0200) at ifq_enqueue+0x48 tun_enqueue(ffff800000bff800,fffffd80761e0200) at tun_enqueue+0x3a ether_output(ffff800000bff800,fffffd80761e0200,ffff800021314588,0) at ether_output+0xb7 ip6_output(fffffd80761e0200,0,0,1,ffff800021314728,0) at ip6_output+0x195c nd6_ns_output(ffff800000bff800,0,ffff800000bf2b48,0,1) at nd6_ns_output+0x579 nd6_dad_start(ffff800000bf2b00) at nd6_dad_start+0x341 in6_ioctl_change_ifaddr(8080691a,ffff800021314a40,ffff800000bff800) at in6_ioctl_change_ifaddr+0x54f ifioctl(fffffd806d5ff798,8080691a,ffff800021314a40,ffff8000212b6a90) at ifioctl+0xdf4 soo_ioctl(fffffd806a1b0b48,8080691a,ffff800021314a40,ffff8000212b6a90) at soo_ioctl+0x26c sys_ioctl(ffff8000212b6a90,ffff800021314b50,ffff800021314bb0) at sys_ioctl+0x4a2 syscall(ffff800021314c20) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc25c0, count: -16 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800021314330 rbx 0xffff800020ce9bff rdx 0x3fd rcx 0 rax 0x94 r8 0x101010101010101 r9 0x8080808080808080 r10 0xfb8d2089734fcaf r11 0x6bc825f97bee6713 r12 0xffff800020ce9a00 r13 0 r14 0 r15 0x1 rip 0xffffffff8147cfe8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021314320 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (ifconfig) pid=102370 stat=onproc flags process=2 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000212b6010,0xffff8000212b7a60 process=0xffff8000ffff3a48 user=0xffff80002130f000, vmspace=0xfffffd8069c60d08 estcpu=0, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 79409 481467 43069 0 2 0x100000 sh 85272 381225 268 0 2 0x100000 sh *17733 102370 43207 0 7 0x2 ifconfig 43207 15466 79541 0 3 0x10008a sigsusp sh 43069 429331 32441 0 7 0x100002 sh 25019 169876 24156 0 2 0x100000 sh 81984 524226 91985 0 2 0x100000 sh 50502 355995 36157 0 2 0x2 ifconfig 36157 292808 63484 0 3 0x10008a sigsusp sh 24156 279690 71650 0 3 0x10008a sigsusp sh 91985 193410 8413 0 3 0x10008a sigsusp sh 32441 463089 1067 0 3 0x82 wait syz-executor.6 79541 165607 1067 0 3 0x82 wait syz-executor.3 63484 210605 1067 0 3 0x82 wait syz-executor.1 268 392158 771 0 3 0x10008a sigsusp sh 771 148795 1067 0 3 0x82 wait syz-executor.7 7267 250687 1067 0 3 0x2 biowait syz-executor.0 8413 252734 1067 0 3 0x82 wait syz-executor.2 71650 450961 1067 0 3 0x82 wait syz-executor.5 87293 220595 1067 0 3 0x2 biowait syz-executor.4 1067 457437 19864 0 3 0x82 kqread syz-execprog 1067 464723 19864 0 3 0x4000082 nanoslp syz-execprog 1067 148652 19864 0 2 0x4000002 syz-execprog 1067 494999 19864 0 3 0x4000082 thrsleep syz-execprog 1067 339793 19864 0 3 0x4000082 thrsleep syz-execprog 1067 435269 19864 0 3 0x4000082 thrsleep syz-execprog 1067 291835 19864 0 3 0x4000082 thrsleep syz-execprog 1067 198493 19864 0 3 0x4000082 thrsleep syz-execprog 1067 336649 19864 0 3 0x4000082 thrsleep syz-execprog 1067 174499 19864 0 3 0x4000082 thrsleep syz-execprog 19864 123535 98199 0 3 0x10008a sigsusp ksh 98199 30018 30015 0 3 0x9a kqread sshd 83202 117659 1 0 3 0x100083 ttyin getty 30015 59992 1 0 3 0x88 kqread sshd 98355 114048 28777 74 3 0x100092 bpf pflogd 28777 411607 1 0 3 0x80 netio pflogd 21095 208952 43554 73 3 0x100090 kqread syslogd 43554 425079 1 0 3 0x100082 netio syslogd 14294 55514 1 0 3 0x100080 kqread resolvd 81344 389447 93014 77 3 0x100092 kqread dhcpleased 65200 14980 93014 77 3 0x100092 kqread dhcpleased 93014 332466 1 0 3 0x80 kqread dhcpleased 20923 56435 0 0 3 0x14200 bored smr 66898 418965 0 0 2 0x14200 zerothread 36896 487104 0 0 3 0x14200 aiodoned aiodoned 31693 216463 0 0 3 0x14200 syncer update 37736 399475 0 0 3 0x14200 cleaner cleaner 92469 145268 0 0 3 0x14200 reaper reaper 22821 446567 0 0 3 0x14200 pgdaemon pagedaemon 23615 322525 0 0 3 0x14200 bored viomb 47384 384396 0 0 3 0x40014200 acpi0 acpi0 82652 339047 0 0 3 0x40014200 idle1 44765 142270 0 0 3 0x14200 bored softnet 56027 425563 0 0 3 0x14200 bored systqmp 61561 505779 0 0 3 0x14200 bored systq 45915 176002 0 0 3 0x40014200 bored softclock 85459 203260 0 0 3 0x40014200 idle0 1 54594 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &ifq->ifq_mtx r = 0 (0xffff800000bffad8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b #3 ifq_enqueue+0x34 #4 tun_enqueue+0x3a #5 ether_output+0xb7 #6 ip6_output+0x195c #7 nd6_ns_output+0x579 #8 nd6_dad_start+0x341 #9 in6_ioctl_change_ifaddr+0x54f #10 ifioctl+0xdf4 #11 soo_ioctl+0x26c #12 sys_ioctl+0x4a2 #13 syscall+0x489 #14 Xsyscall+0x128 Process 17733 (ifconfig) thread 0xffff8000212b6a90 (102370) exclusive rwlock netlock r = 0 (0xffffffff828e4ab0) #0 witness_lock+0x44d #1 in6_ioctl_change_ifaddr+0xba #2 ifioctl+0xdf4 #3 soo_ioctl+0x26c #4 sys_ioctl+0x4a2 #5 syscall+0x489 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a3d4a8) #0 witness_lock+0x44d #1 soo_ioctl+0x25a #2 sys_ioctl+0x4a2 #3 syscall+0x489 #4 Xsyscall+0x128 exclusive mutex &ifq->ifq_mtx r = 0 (0xffff800000bffad8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b #3 ifq_enqueue+0x34 #4 tun_enqueue+0x3a #5 ether_output+0xb7 #6 ip6_output+0x195c #7 nd6_ns_output+0x579 #8 nd6_dad_start+0x341 #9 in6_ioctl_change_ifaddr+0x54f #10 ifioctl+0xdf4 #11 soo_ioctl+0x26c #12 sys_ioctl+0x4a2 #13 syscall+0x489 #14 Xsyscall+0x128 Process 7267 (syz-executor.0) thread 0xffff8000ffff5500 (250687) exclusive rrwlock inode r = 0 (0xfffffd806c62a5f8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 rrw_enter+0x8b #3 VOP_LOCK+0x87 #4 vn_lock+0x84 #5 vget+0x1d3 #6 ufs_ihashget+0x121 #7 ffs_vget+0x7c #8 ufs_lookup+0x13ba #9 VOP_LOOKUP+0x58 #10 vfs_lookup+0x6e5 #11 namei+0x36a #12 dounlinkat+0x99 #13 syscall+0x489 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c384810) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 rrw_enter+0x8b #3 VOP_LOCK+0x87 #4 vn_lock+0x84 #5 vfs_lookup+0xd1 #6 namei+0x36a #7 dounlinkat+0x99 #8 syscall+0x489 #9 Xsyscall+0x128 Process 87293 (syz-executor.4) thread 0xffff8000ffff4fc0 (220595) exclusive rrwlock inode r = 0 (0xfffffd806c62a708) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 rrw_enter+0x8b #3 VOP_LOCK+0x87 #4 vn_lock+0x84 #5 vget+0x1d3 #6 ufs_ihashget+0x121 #7 ffs_vget+0x7c #8 ufs_lookup+0x13ba #9 VOP_LOOKUP+0x58 #10 vfs_lookup+0x6e5 #11 namei+0x36a #12 dounlinkat+0x99 #13 syscall+0x489 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c384920) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 rrw_enter+0x8b #3 VOP_LOCK+0x87 #4 vn_lock+0x84 #5 vfs_lookup+0xd1 #6 namei+0x36a #7 dounlinkat+0x99 #8 syscall+0x489 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10172 6471K 6471K 78643K 11262 0 pcb 13 8K 8K 78643K 13 0 rtable 148 4K 4K 78643K 226 0 ifaddr 70 14K 14K 78643K 74 0 counters 54 35K 35K 78643K 54 0 ioctlops 0 0K 4K 78643K 1486 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1167 73K 73K 78643K 1180 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 22 81K 89K 78643K 107 0 proc 81 111K 124K 78643K 443 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 52 3K 3K 78643K 52 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 594 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 237 73K 74K 78643K 2959 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 18 1K 1K 78643K 18 0 temp 53 4683K 4747K 78643K 4084 0 kqueue 12 18K 18K 78643K 25 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 24 0 21 1 0 1 1 0 8 0 rtentry 112 66 0 1 2 0 2 2 0 8 0 unpcb 136 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 1 0 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 120 12 0 0 1 0 1 1 0 8 0 inpcb 304 55 0 47 1 0 1 1 0 8 0 nd6 48 9 0 0 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 12 0 0 1 0 1 1 0 8 0 pfstkey 112 12 0 0 1 0 1 1 0 8 0 pfstate 320 12 0 0 1 0 1 1 0 8 0 pfrule 1360 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 263 0 0 17 0 17 17 0 8 0 art_table 32 264 0 0 3 0 3 3 0 8 0 art_node 16 65 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1480 0 49 90 0 90 90 0 8 0 ffsino 272 1480 0 49 96 0 96 96 0 8 0 nchpl 144 1729 0 63 62 0 62 62 0 8 0 uvmvnodes 80 1490 0 0 31 0 31 31 0 8 0 vnodes 224 1490 0 0 88 0 88 88 0 8 0 namei 1024 5728 0 5728 2 0 2 2 0 8 2 percpumem 16 39 0 0 1 0 1 1 0 8 0 scxspl 216 5270 0 5268 2 1 1 2 0 8 0 plimitpl 152 24 0 9 1 0 1 1 0 8 0 sigapl 424 411 0 362 6 0 6 6 0 8 0 futexpl 64 10 0 10 1 0 1 1 0 8 1 knotepl 120 102 0 0 4 0 4 4 0 8 0 kqueuepl 216 21 0 13 1 0 1 1 0 8 0 pipepl 336 134 0 106 3 0 3 3 0 8 0 fdescpl 496 397 0 362 5 0 5 5 0 8 0 filepl 152 1486 0 1352 6 0 6 6 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 26 0 9 1 0 1 1 0 8 0 pgrppl 48 26 0 9 1 0 1 1 0 8 0 ucredpl 96 69 0 57 1 0 1 1 0 8 0 zombiepl 144 362 0 362 1 0 1 1 0 8 1 processpl 1064 411 0 362 4 0 4 4 0 8 0 procpl 672 422 0 364 6 0 6 6 0 8 0 sockpl 480 114 0 88 4 0 4 4 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 57 0 0 8 0 8 8 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 200 0 0 12 0 12 12 0 8 0 bufpl 288 3614 0 139 249 0 249 249 0 8 0 anonpl 24 56483 0 50614 50 4 46 47 0 186 9 amapchunkpl 152 5935 0 5440 20 0 20 20 0 158 0 amappl16 200 225 0 150 6 1 5 5 0 8 0 amappl15 192 97 0 90 1 0 1 1 0 8 0 amappl14 184 26 0 23 1 0 1 1 0 8 0 amappl13 176 96 0 86 1 0 1 1 0 8 0 amappl12 168 15 0 12 1 0 1 1 0 8 0 amappl11 160 48 0 33 1 0 1 1 0 8 0 amappl10 152 40 0 35 1 0 1 1 0 8 0 amappl9 144 444 0 441 1 0 1 1 0 8 0 amappl8 136 519 0 487 2 0 2 2 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 211 0 192 2 0 2 2 0 8 1 amappl5 112 191 0 176 1 0 1 1 0 8 0 amappl4 104 808 0 772 2 0 2 2 0 8 0 amappl3 96 160 0 148 1 0 1 1 0 8 0 amappl2 88 517 0 469 3 0 3 3 0 8 1 amappl1 80 10893 0 10291 19 0 19 19 0 8 5 amappl 88 2563 0 2381 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 397 0 362 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 397 0 362 1 0 1 1 0 8 0 vmmpekpl 168 8356 0 8335 2 0 2 2 0 8 0 vmmpepl 168 37432 0 35642 91 0 91 91 0 357 11 vmsppl 368 396 0 362 4 0 4 4 0 8 0 rwobjpl 56 12120 0 9601 41 0 41 41 0 8 4 pdppl 4096 801 0 724 95 14 81 81 0 8 4 pvpl 32 236261 0 226259 262 0 262 262 0 265 178 pmappl 248 396 0 362 3 0 3 3 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 588 0 17 17 0 17 17 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8291fff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a3d2a0) at __mp_lock+0x122 intr_handler(ffff8000212e4360,ffff80000004ad00) at intr_handler+0x5e Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f __mp_lock(ffffffff82a3d2a0) at __mp_lock+0x122 syscall(ffff8000212e4530) at syscall+0x3ef Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdc590, count: 6 ddb{0}> trace x86_ipi_db(ffffffff8291fff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82a3d2a0) at __mp_lock+0x122 intr_handler(ffff8000212e4360,ffff80000004ad00) at intr_handler+0x5e Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f __mp_lock(ffffffff82a3d2a0) at __mp_lock+0x122 syscall(ffff8000212e4530) at syscall+0x3ef Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffdc590, count: -9 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 panic(ffffffff825739a5) at panic+0x177 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 priq_enq(ffff800000bffab0,fffffd80761e0200) at priq_enq+0x2ae ifq_enqueue(ffff800000bffab0,fffffd80761e0200) at ifq_enqueue+0x48 tun_enqueue(ffff800000bff800,fffffd80761e0200) at tun_enqueue+0x3a ether_output(ffff800000bff800,fffffd80761e0200,ffff800021314588,0) at ether_output+0xb7 ip6_output(fffffd80761e0200,0,0,1,ffff800021314728,0) at ip6_output+0x195c nd6_ns_output(ffff800000bff800,0,ffff800000bf2b48,0,1) at nd6_ns_output+0x579 nd6_dad_start(ffff800000bf2b00) at nd6_dad_start+0x341 in6_ioctl_change_ifaddr(8080691a,ffff800021314a40,ffff800000bff800) at in6_ioctl_change_ifaddr+0x54f ifioctl(fffffd806d5ff798,8080691a,ffff800021314a40,ffff8000212b6a90) at ifioctl+0xdf4 soo_ioctl(fffffd806a1b0b48,8080691a,ffff800021314a40,ffff8000212b6a90) at soo_ioctl+0x26c sys_ioctl(ffff8000212b6a90,ffff800021314b50,ffff800021314bb0) at sys_ioctl+0x4a2 end trace frame: 0xffff800021314c10, count: 0 ddb{1}> trace db_enter() at db_enter+0x18 panic(ffffffff825739a5) at panic+0x177 __assert(ffffffff825e91ae,ffffffff825cdabe,35a,ffffffff82591901) at __assert+0x25 priq_enq(ffff800000bffab0,fffffd80761e0200) at priq_enq+0x2ae ifq_enqueue(ffff800000bffab0,fffffd80761e0200) at ifq_enqueue+0x48 tun_enqueue(ffff800000bff800,fffffd80761e0200) at tun_enqueue+0x3a ether_output(ffff800000bff800,fffffd80761e0200,ffff800021314588,0) at ether_output+0xb7 ip6_output(fffffd80761e0200,0,0,1,ffff800021314728,0) at ip6_output+0x195c nd6_ns_output(ffff800000bff800,0,ffff800000bf2b48,0,1) at nd6_ns_output+0x579 nd6_dad_start(ffff800000bf2b00) at nd6_dad_start+0x341 in6_ioctl_change_ifaddr(8080691a,ffff800021314a40,ffff800000bff800) at in6_ioctl_change_ifaddr+0x54f ifioctl(fffffd806d5ff798,8080691a,ffff800021314a40,ffff8000212b6a90) at ifioctl+0xdf4 soo_ioctl(fffffd806a1b0b48,8080691a,ffff800021314a40,ffff8000212b6a90) at soo_ioctl+0x26c sys_ioctl(ffff8000212b6a90,ffff800021314b50,ffff800021314bb0) at sys_ioctl+0x4a2 syscall(ffff800021314c20) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc25c0, count: -16 ddb{1}>