wpanic: excl->share Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 185237 66775 0 0x2 0x1 1 syz-executor *312477 33975 0 0x14000 0x200 0 softclockmp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5a1c) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffff80000159c878,1,0) at witness_checkorder+0x122c sys/kern/subr_witness.c:854 rw_do_enter_read(ffff80000159c860,0) at rw_do_enter_read+0x99 sys/kern/kern_rwlock.c:355 in6_hasmulti(fffffd805f10e9f0,ffff80000159c800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd805f10e9f0,ffff80000159c800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd805f10e900,ffffffff83987338,0,0,ffff80002a1fe7b0,0) at ip6_output+0x13bd sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff8000015ad900,83,0) at mld6_sendpkt+0x385 sys/netinet6/mld6.c:499 mld6_fasttimo() at mld6_fasttimo+0x16d mld6_checktimer sys/netinet6/mld6.c:395 [inline] mld6_fasttimo() at mld6_fasttimo+0x16d sys/netinet6/mld6.c:369 pffasttimo(ffffffff83a152a8) at pffasttimo+0x184 sys/kern/uipc_domain.c:-1 timeout_run(ffffffff8383b068,ffffffff83a152a8) at timeout_run+0x159 sys/kern/kern_timeout.c:698 softclock_thread_run(ffffffff8383b068) at softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 softclock_thread_mp(ffff8000ffffe298) at softclock_thread_mp+0x86 end trace frame: 0x0, count: 3 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: excl->share ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5a1c) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffff80000159c878,1,0) at witness_checkorder+0x122c sys/kern/subr_witness.c:854 rw_do_enter_read(ffff80000159c860,0) at rw_do_enter_read+0x99 sys/kern/kern_rwlock.c:355 in6_hasmulti(fffffd805f10e9f0,ffff80000159c800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd805f10e9f0,ffff80000159c800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd805f10e900,ffffffff83987338,0,0,ffff80002a1fe7b0,0) at ip6_output+0x13bd sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff8000015ad900,83,0) at mld6_sendpkt+0x385 sys/netinet6/mld6.c:499 mld6_fasttimo() at mld6_fasttimo+0x16d mld6_checktimer sys/netinet6/mld6.c:395 [inline] mld6_fasttimo() at mld6_fasttimo+0x16d sys/netinet6/mld6.c:369 pffasttimo(ffffffff83a152a8) at pffasttimo+0x184 sys/kern/uipc_domain.c:-1 timeout_run(ffffffff8383b068,ffffffff83a152a8) at timeout_run+0x159 sys/kern/kern_timeout.c:698 softclock_thread_run(ffffffff8383b068) at softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 softclock_thread_mp(ffff8000ffffe298) at softclock_thread_mp+0x86 end trace frame: 0x0, count: -12 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a1fe400 rbx 0xffffffff83879e07 cpu_info_full_primary+0x2e07 rdx 0 rcx 0xffff8000ffffe298 rax 0xffffffff83878ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xbc5a96f12ea2c910 r11 0xed86c64201832205 r12 0xffffffff83879c08 cpu_info_full_primary+0x2c08 r13 0 r14 0 r15 0x1 rip 0xffffffff817c1d35 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a1fe3f0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (softclockmp) tid=312477 pid=33975 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=0, usrpri=50, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffe000,0xffff8000ffffe540 process=0xffff8000ffffa680 user=0xffff80002a1f9000, vmspace=0xffffffff838bee00 estcpu=0, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93794 123424 36703 0 2 0 syz-executor 93794 30984 36703 0 3 0x4000080 ttyin syz-executor 29399 203691 4410 0 2 0 syz-executor 29399 315319 4410 0 3 0x4000080 fsleep syz-executor 98303 225319 37172 0 2 0x1 syz-executor 98303 129714 37172 0 3 0x4000080 fsleep syz-executor 37 390892 66775 60929 2 0x10 syz-executor 37 179785 66775 60929 3 0x4000090 pipewr syz-executor 37 89859 66775 60929 3 0x4000090 fsleep syz-executor 25769 473711 4141 0 2 0x1 syz-executor 25769 207953 4141 0 2 0x4000001 syz-executor 72502 186546 14147 0 2 0 syz-executor 72502 450630 14147 0 2 0x4000000 syz-executor 67333 343359 40467 0 3 0x80 nanoslp syz-executor 67333 471607 40467 0 3 0x4000080 fsleep syz-executor 67333 149015 40467 0 3 0x4000080 kqread syz-executor 68324 126541 17628 0 2 0 syz-executor 68324 324597 17628 0 3 0x4000080 fsleep syz-executor 68324 239760 17628 0 2 0x4000000 syz-executor 37172 479178 60861 0 2 0x3 syz-executor 40467 252188 60861 0 2 0x3 syz-executor 17628 265441 60861 0 2 0x3 syz-executor 4410 179443 60861 0 3 0x82 nanoslp syz-executor 14147 454881 60861 0 2 0x3 syz-executor 36703 456953 60861 0 3 0x82 nanoslp syz-executor 66775 185237 60861 0 7 0x3 syz-executor 4141 66184 60861 0 2 0x3 syz-executor 60861 101715 13844 0 3 0x82 kqread syz-executor 13844 387733 1628 0 3 0x10008a sigsusp ksh 1628 472999 27340 0 3 0x98 kqread sshd-session 27340 201819 5990 0 3 0x92 kqread sshd-session 25686 89406 1 0 3 0x100083 ttyin getty 5990 78130 1 0 3 0x88 kqread sshd 9701 346067 99338 74 3 0x1100092 bpf pflogd 99338 368823 1 0 3 0x80 sbwait pflogd 81268 315480 68458 73 3 0x1100090 kqread syslogd 68458 249125 1 0 3 0x100082 sbwait syslogd 37650 369299 1 0 3 0x100080 kqread resolvd 80689 335615 2168 77 3 0x100092 kqread dhcpleased 40581 508485 2168 77 3 0x100092 kqread dhcpleased 2168 32609 1 0 3 0x80 kqread dhcpleased 78246 457823 0 0 3 0x14200 bored smr 84221 17433 0 0 2 0x14200 zerothread 44104 40878 0 0 3 0x14200 aiodoned aiodoned 19241 62465 0 0 3 0x14200 syncer update 25114 37855 0 0 3 0x14200 cleaner cleaner 54869 396301 0 0 3 0x14200 reaper reaper 84845 522924 0 0 3 0x14200 pgdaemon pagedaemon 16996 232378 0 0 3 0x14200 bored viomb 81645 211992 0 0 3 0x40014200 acpi0 acpi0 97977 335134 0 0 3 0x40014200 idle1 29544 67873 0 0 3 0x14200 bored softnet1 40671 354657 0 0 3 0x14200 bored softnet0 83874 469098 0 0 3 0x14200 bored systqmp 61084 40082 0 0 3 0x14200 bored systq *33975 312477 0 0 7 0x14200 softclockmp 93083 491981 0 0 3 0x40014200 tmoslp softclock 75819 121330 0 0 3 0x40014200 idle0 1 24069 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 25769 (syz-executor) thread 0xffff8000fffe87e8 (207953) exclusive rrwlock inode r = 0 (0xfffffd8069347ec0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688 #7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209 #8 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #8 syscall+0xa50 sys/arch/amd64/amd64/trap.c:796 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83970b08) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #1 ktrsysret+0xde sys/kern/kern_ktrace.c:209 #2 syscall+0xa50 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #2 syscall+0xa50 sys/arch/amd64/amd64/trap.c:796 #3 Xsyscall+0x128 Process 72502 (syz-executor) thread 0xffff8000fffe8d18 (450630) exclusive rrwlock inode r = 0 (0xfffffd8069347b48) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #10 namei+0x7ca sys/kern/vfs_lookup.c:250 #11 ptm_vn_open+0x40 sys/kern/tty_pty.c:1014 #12 ptmioctl+0x8a0 sys/kern/tty_pty.c:1179 #13 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #14 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #15 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #16 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #16 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775 #17 Xsyscall+0x128 Process 33975 (softclockmp) thread 0xffff8000ffffe298 (312477) exclusive rwlock maddr r = 0 (0xffff80000159c878) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 mld6_fasttimo+0x8c mld6_checktimer sys/netinet6/mld6.c:-1 [inline] #2 mld6_fasttimo+0x8c sys/netinet6/mld6.c:369 #3 pffasttimo+0x184 sys/kern/uipc_domain.c:-1 #4 timeout_run+0x159 sys/kern/kern_timeout.c:698 #5 softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 #6 softclock_thread_mp+0x86 #7 proc_trampoline+0x10 shared rwlock netlock r = 0 (0xffffffff83832e50) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 mld6_fasttimo+0x5f sys/netinet6/mld6.c:-1 #3 pffasttimo+0x184 sys/kern/uipc_domain.c:-1 #4 timeout_run+0x159 sys/kern/kern_timeout.c:698 #5 softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 #6 softclock_thread_mp+0x86 #7 proc_trampoline+0x10 shared rwlock timeout r = 0 (0xffffffff8383b008) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 timeout_run+0x131 sys/kern/kern_timeout.c:694 #2 softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 #3 softclock_thread_mp+0x86 #4 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11068 12167K 12339K 166960K 12531 0 pcb 19 13K 14K 166960K 105 0 rtable 253 9K 9K 166960K 395 0 pf 36 18K 18K 166960K 69 0 ifaddr 43 7K 8K 166960K 58 0 ifgroup 55 2K 2K 166960K 81 0 sysctl 1 1K 9K 166960K 7 0 counters 70 37K 38K 166960K 98 0 ioctlops 0 0K 4K 166960K 1682 0 iov 0 0K 12K 166960K 9 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1337 84K 85K 166960K 1524 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 10 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 93K 166960K 350 0 sigio 0 0K 0K 166960K 5 0 proc 72 115K 164K 166960K 543 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 37 0 in_multi 98 7K 7K 166960K 107 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 494 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 250 167K 178K 166960K 5098 0 UVM aobj 15 5K 5K 166960K 15 0 pinsyscall 43 86K 107K 166960K 1474 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 14 0 NDP 12 0K 2K 166960K 37 0 temp 43 8671K 8736K 166960K 14068 0 kqueue 13 20K 26K 166960K 60 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 56 0 52 1 0 1 1 0 8 0 rtentry 176 116 0 4 6 0 6 6 0 8 0 unpcb 144 282 0 260 3 0 3 3 0 8 2 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 189 0 185 7 0 7 7 0 8 6 arp 136 19 0 0 1 0 1 1 0 8 0 inpcb 328 403 0 390 10 1 9 9 0 8 7 nd6 152 24 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 12 0 12 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 6 0 1 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 37 0 1 1 0 1 1 0 8 0 pfstkey 128 41 0 5 2 0 2 2 0 8 0 pfstate 448 39 0 3 4 0 4 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 458 0 6 29 0 29 29 0 8 0 art_table 40 461 0 6 5 0 5 5 0 8 0 art_node 32 116 0 15 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 8 0 0 1 0 1 1 0 8 0 shmpl 112 11 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1967 0 459 96 0 96 96 0 8 0 ffsino 296 1967 0 459 117 0 117 117 0 8 0 nchpl 144 2480 0 775 64 0 64 64 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 vnodes 216 2143 0 0 120 0 120 120 0 8 0 namei 1024 8488 0 8488 2 1 1 2 0 8 1 percpumem 16 64 0 14 1 0 1 1 0 8 0 vcpupl 3968 1 0 0 1 0 1 1 0 8 0 vmpool 848 1 0 0 1 0 1 1 0 8 0 kstatmem 264 44 0 18 3 0 3 3 0 8 1 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 12390 0 12390 10 2 8 8 1 8 8 plimitpl 152 53 0 34 1 0 1 1 0 8 0 sigapl 424 658 0 610 7 1 6 7 0 8 0 knotepl 120 326 0 0 10 0 10 10 0 8 0 kqueuepl 224 90 0 80 1 0 1 1 0 8 0 pipepl 344 132 0 103 3 0 3 3 0 8 0 fdescpl 528 642 0 610 3 0 3 3 0 8 0 filepl 160 3533 0 3294 17 3 14 14 0 8 4 lockfpl 104 74 0 71 1 0 1 1 0 8 0 lockfspl 48 31 0 28 1 0 1 1 0 8 0 sessionpl 144 22 0 13 1 0 1 1 0 8 0 pgrppl 48 37 0 20 1 0 1 1 0 8 0 ucredpl 104 266 0 251 1 0 1 1 0 8 0 zombiepl 144 759 0 759 2 1 1 1 0 8 1 processpl 1232 658 0 610 5 1 4 5 0 8 0 procpl 664 1078 0 1019 6 0 6 6 0 8 0 sosppl 176 3 0 3 2 1 1 1 0 8 1 sockpl 752 750 0 711 13 2 11 13 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 124 0 0 16 0 16 16 0 8 0 mcl2k 2048 72 0 0 9 0 9 9 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 195 0 0 12 0 12 12 0 8 0 bufpl 280 4893 0 126 341 0 341 341 0 8 0 anonpl 32 9488 0 0 77 0 77 77 0 246 0 amapchunkpl 152 16056 0 15539 32 0 32 32 0 158 11 amappl16 200 2719 0 2684 23 10 13 15 0 8 8 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 6 0 5 1 0 1 1 0 8 0 amappl13 176 424 0 423 1 0 1 1 0 8 0 amappl12 168 996 0 953 3 0 3 3 0 8 0 amappl11 160 12 0 12 1 1 0 1 0 8 0 amappl10 152 45 0 31 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 78 0 77 1 0 1 1 0 8 0 amappl6 120 278 0 265 1 0 1 1 0 8 0 amappl5 112 81 0 69 1 0 1 1 0 8 0 amappl4 104 413 0 383 1 0 1 1 0 8 0 amappl3 96 2587 0 2489 4 1 3 3 0 8 0 amappl2 88 749 0 672 2 0 2 2 0 8 0 amappl1 80 9822 0 9224 15 2 13 15 0 8 0 amappl 88 4346 0 4174 5 0 5 5 0 92 0 uvmvnodes 80 111 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 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 128 254 0 254 2 1 1 1 0 8 1 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 83 0 82 1 0 1 1 0 8 0 aobjpl 72 14 0 0 1 0 1 1 0 8 0 uaddrrnd 24 642 0 610 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 642 0 610 1 0 1 1 0 8 0 vmmpekpl 168 7073 0 7030 3 0 3 3 0 8 0 vmmpepl 168 48203 0 46224 98 2 96 97 0 357 9 vmsppl 488 641 0 610 5 0 5 5 0 8 1 rwobjpl 80 16534 0 15472 28 2 26 27 0 8 0 pdppl 4096 1293 0 1221 101 29 72 85 0 8 0 pvpl 32 16638 0 0 136 1 135 135 0 265 0 pmappl 256 642 0 610 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 293 0 33 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff833b5a1c) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffff80000159c878,1,0) at witness_checkorder+0x122c sys/kern/subr_witness.c:854 rw_do_enter_read(ffff80000159c860,0) at rw_do_enter_read+0x99 sys/kern/kern_rwlock.c:355 in6_hasmulti(fffffd805f10e9f0,ffff80000159c800) at in6_hasmulti+0x41 in6_lookupmulti sys/netinet6/in6.c:-1 [inline] in6_hasmulti(fffffd805f10e9f0,ffff80000159c800) at in6_hasmulti+0x41 sys/netinet6/in6.c:1150 ip6_output(fffffd805f10e900,ffffffff83987338,0,0,ffff80002a1fe7b0,0) at ip6_output+0x13bd sys/netinet6/ip6_output.c:507 mld6_sendpkt(ffff8000015ad900,83,0) at mld6_sendpkt+0x385 sys/netinet6/mld6.c:499 mld6_fasttimo() at mld6_fasttimo+0x16d mld6_checktimer sys/netinet6/mld6.c:395 [inline] mld6_fasttimo() at mld6_fasttimo+0x16d sys/netinet6/mld6.c:369 pffasttimo(ffffffff83a152a8) at pffasttimo+0x184 sys/kern/uipc_domain.c:-1 timeout_run(ffffffff8383b068,ffffffff83a152a8) at timeout_run+0x159 sys/kern/kern_timeout.c:698 softclock_thread_run(ffffffff8383b068) at softclock_thread_run+0xe7 sys/kern/kern_timeout.c:842 softclock_thread_mp(ffff8000ffffe298) at softclock_thread_mp+0x86 end trace frame: 0x0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff83970900) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83970900) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 ktrsyscall(ffff8000ffffdc90,b,20,ffff80002a3084e0) at ktrsyscall+0x2c7 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff8000ffffdc90,b,20,ffff80002a3084e0) at ktrsyscall+0x2c7 sys/kern/kern_ktrace.c:183 syscall(ffff80002a3084e0) at syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a3084e0) at syscall+0x304 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71fcdf3e2bb0, count: 7 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff83970900) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83970900) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 ktrsyscall(ffff8000ffffdc90,b,20,ffff80002a3084e0) at ktrsyscall+0x2c7 ktrwrite sys/kern/kern_ktrace.c:-1 [inline] ktrsyscall(ffff8000ffffdc90,b,20,ffff80002a3084e0) at ktrsyscall+0x2c7 sys/kern/kern_ktrace.c:183 syscall(ffff80002a3084e0) at syscall+0x304 mi_syscall sys/sys/syscall_mi.h:154 [inline] syscall(ffff80002a3084e0) at syscall+0x304 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71fcdf3e2bb0, count: -8