witness: lock_object uninitialized: 0xffff8000014ce030 Starting stack trace... witness_checkorder(ffff8000014ce030,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff8000014ce030,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_do_enter_write(ffff8000014ce018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000014ce000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff800033cb4260) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000358bb9c8,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000358bb9c8,ffff80003c518970,ffff80003c5188c0) at sys_exit+0x1a syscall(ffff80003c518970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c518970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e6fbd4b3230, count: 249 End of stack trace. Stopped at db_enter+0x25: addq $0x8,%rsp ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000014ce030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000014ce018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000014ce000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff800033cb4260) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000358bb9c8,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000358bb9c8,ffff80003c518970,ffff80003c5188c0) at sys_exit+0x1a syscall(ffff80003c518970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c518970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e6fbd4b3230, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c518600 rbx 0 rdx 0 rcx 0xffff8000358bb9c8 rax 0xffffffff83791ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80003c5185a0 r9 0x8080808080808080 r10 0xab04c37e473d0eea r11 0x935e18d0300850a4 r12 0 r13 0x1 r14 0xffff8000014ce030 r15 0x3 rip 0xffffffff82edcdb5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c5185f0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=97038 pid=45615 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000358bb9c8 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000358ba7d8,0xffff8000ffff8550 process=0xffff800033cb4260 user=0xffff80003c513000, vmspace=0xfffffd806bb63578 estcpu=36, cpticks=11, pctcpu=0.0, user=0, sys=9, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 49902 449427 42466 0 2 0 syz-executor 49902 299414 42466 0 2 0x4000000 syz-executor 49902 264418 42466 0 3 0x4000080 fsleep syz-executor 59253 136227 93898 0 2 0 syz-executor 59253 516819 93898 0 3 0x4000080 wsevent_read syz-executor 59253 445842 93898 0 2 0x4000000 syz-executor 59253 451212 93898 0 2 0x4000000 syz-executor 1117 298856 47016 0 2 0x480 syz-executor 1117 438195 47016 0 3 0x4000080 kqsel syz-executor 1117 264470 47016 0 3 0x4000080 fsleep syz-executor 1117 132961 47016 0 3 0x4000080 fsleep syz-executor 39284 174561 77590 0 2 0 syz-executor 39284 228014 77590 0 3 0x4000080 kqpoll syz-executor 39284 448211 77590 0 2 0x4000080 syz-executor 39284 508561 77590 0 3 0x4000080 fsleep syz-executor 39284 278212 77590 0 3 0x4000080 fsleep syz-executor 82101 453913 0 0 3 0x14200 bored sosplice 46259 44364 0 0 3 0x14200 acct acct 49760 216406 86239 0 2 0x482 syz-executor 99246 298744 86239 0 2 0x482 syz-executor 56178 440541 86239 0 3 0x82 wait syz-executor 77590 512050 86239 0 2 0x482 syz-executor 48048 499976 86239 0 2 0x482 syz-executor 47016 232733 86239 0 7 0x3 syz-executor 93898 473703 86239 0 2 0x482 syz-executor 42466 319849 86239 0 2 0x482 syz-executor 86239 316214 52092 0 3 0x82 kqread syz-executor 52092 32117 750 0 3 0x10008a sigsusp ksh 750 375375 59721 0 3 0x98 kqread sshd-session 59721 290523 54659 0 3 0x92 kqread sshd-session 14300 401661 1 0 2 0x100083 getty 54659 401713 1 0 3 0x88 kqread sshd 88802 191525 65898 74 3 0x1100092 bpf pflogd 65898 520940 1 0 3 0x80 sbwait pflogd 8406 83453 7424 73 2 0x1100090 syslogd 7424 13087 1 0 3 0x100082 sbwait syslogd 38021 70326 1 0 3 0x100080 kqread resolvd 96972 490202 99603 77 3 0x100092 kqread dhcpleased 98046 111183 99603 77 3 0x100092 kqread dhcpleased 99603 246137 1 0 3 0x80 kqread dhcpleased 66725 177172 0 0 3 0x14200 bored smr 25559 215340 0 0 3 0x14200 pgzero zerothread 75807 441752 0 0 3 0x14200 aiodoned aiodoned 25244 516998 0 0 3 0x14200 syncer update 92906 113925 0 0 3 0x14200 cleaner cleaner 61379 228854 0 0 3 0x14200 reaper reaper 88381 128032 0 0 3 0x14200 pgdaemon pagedaemon 21812 440460 0 0 3 0x14200 bored viomb 28116 84747 0 0 3 0x40014200 acpi0 acpi0 850 472202 0 0 3 0x40014200 idle1 82200 316181 0 0 3 0x14200 bored softnet3 96636 24372 0 0 3 0x14200 bored softnet2 4867 453992 0 0 3 0x14200 bored softnet1 70161 312839 0 0 2 0x14200 softnet0 60320 440000 0 0 3 0x14200 bored systqmp 22059 124090 0 0 3 0x14200 bored systq 20138 448805 0 0 2 0x14200 softclockmp 52079 92696 0 0 3 0x40014200 tmoslp softclock 37478 122814 0 0 3 0x40014200 idle0 1 326918 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 11245K 11356K 166960K 11420 0 pcb 17 12K 12K 166960K 40 0 rtable 217 6K 7K 166960K 367 0 pf 36 17K 19K 166960K 54 0 ifaddr 41 6K 7K 166960K 48 0 ifgroup 59 2K 2K 166960K 69 0 sysctl 1 1K 1K 166960K 1 0 counters 66 36K 36K 166960K 70 0 ioctlops 0 0K 4K 166960K 1490 0 iov 0 0K 12K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1337 84K 84K 166960K 1436 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 9 0 dirhash 15 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 89K 166960K 251 0 sigio 0 0K 0K 166960K 2 0 proc 78 116K 128K 166960K 548 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 20 0 in_multi 88 6K 7K 166960K 104 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 377 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 264 73K 77K 166960K 3897 0 UVM aobj 9 2K 2K 166960K 9 0 pinsyscall 43 86K 102K 166960K 1339 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 13 0K 2K 166960K 31 0 temp 42 8631K 8696K 166960K 7140 0 kqueue 15 24K 26K 166960K 39 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 42 0 39 1 0 1 1 0 8 0 rtentry 112 112 0 12 4 0 4 4 0 8 0 unpcb 144 91 0 67 2 1 1 2 0 8 0 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 808 34 0 27 1 0 1 1 0 8 0 arp 120 19 0 2 1 0 1 1 0 8 0 inpcb 376 220 0 206 8 6 2 8 0 8 0 nd6 136 24 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 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 26 0 0 1 0 1 1 0 8 0 pfstkey 128 26 0 0 1 0 1 1 0 8 0 pfstate 376 26 0 0 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 453 0 44 29 1 28 29 0 8 0 art_table 32 454 0 44 4 0 4 4 0 8 0 art_node 16 111 0 21 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semapl 112 7 0 2 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 0 3 0 3 3 0 8 0 dino2pl 256 1770 0 255 95 0 95 95 0 8 0 ffsino 280 1770 0 255 109 0 109 109 0 8 0 nchpl 144 2116 0 429 63 0 63 63 0 8 0 uvmvnodes 80 1902 0 0 39 0 39 39 0 8 0 vnodes 216 1902 0 0 106 0 106 106 0 8 0 namei 1024 6487 0 6487 2 1 1 1 0 8 1 percpumem 16 49 0 2 1 0 1 1 0 8 0 kstatmem 264 30 0 4 2 0 2 2 0 8 0 scxspl 216 6950 0 6950 10 9 1 8 1 8 1 plimitpl 152 39 0 21 1 0 1 1 0 8 0 sigapl 424 553 0 501 7 1 6 7 0 8 0 futexpl 64 1793 0 1788 1 0 1 1 0 8 0 knotepl 120 295 0 0 9 0 9 9 0 8 0 kqueuepl 216 46 0 31 1 0 1 1 0 8 0 pipepl 328 113 0 86 3 0 3 3 0 8 0 fdescpl 504 533 0 502 5 0 5 5 0 8 0 filepl 152 2151 0 1901 13 3 10 12 0 8 0 lockfpl 104 81 0 78 1 0 1 1 0 8 0 lockfspl 48 31 0 28 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 210 0 195 1 0 1 1 0 8 0 zombiepl 144 522 0 518 1 0 1 1 0 8 0 processpl 1168 553 0 501 5 1 4 5 0 8 0 procpl 656 761 0 697 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 2 0 2 1 1 0 1 0 8 0 sockpl 688 360 0 319 10 6 4 10 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 0 17 17 0 8 0 mcl2k 2048 17 0 0 3 0 3 3 0 8 0 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 160 0 0 10 0 10 10 0 8 0 bufpl 280 2489 0 129 169 0 169 169 0 8 0 anonpl 24 92831 0 89304 23 1 22 23 0 184 0 amapchunkpl 152 11591 0 10979 25 1 24 24 0 158 0 amappl16 200 1349 0 1321 4 2 2 4 0 8 0 amappl15 192 7 0 6 1 0 1 1 0 8 0 amappl14 184 114 0 102 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1176 0 1144 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 1 0 0 1 0 1 1 0 8 0 amappl9 144 273 0 273 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 118 0 106 1 0 1 1 0 8 0 amappl6 120 174 0 171 1 0 1 1 0 8 0 amappl5 112 118 0 109 1 0 1 1 0 8 0 amappl4 104 314 0 296 1 0 1 1 0 8 0 amappl3 96 2011 0 1872 5 1 4 4 0 8 0 amappl2 88 659 0 597 2 0 2 2 0 8 0 amappl1 80 8542 0 7972 14 0 14 14 0 8 0 amappl 88 3510 0 3304 7 2 5 6 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 533 0 501 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 533 0 501 1 0 1 1 0 8 0 vmmpekpl 168 6267 0 6230 2 0 2 2 0 8 0 vmmpepl 168 38901 0 36941 92 5 87 88 0 357 1 vmsppl 456 532 0 501 5 1 4 5 0 8 0 rwobjpl 64 15414 0 12524 47 0 47 47 0 8 0 pdppl 4096 1074 0 1002 100 28 72 84 0 8 0 pvpl 32 10933 0 0 90 1 89 89 0 265 0 pmappl 248 532 0 501 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 278 0 34 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:437 witness_checkorder(ffff8000014ce030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000014ce018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000014ce000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff800033cb4260) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000358bb9c8,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000358bb9c8,ffff80003c518970,ffff80003c5188c0) at sys_exit+0x1a syscall(ffff80003c518970) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c518970) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e6fbd4b3230, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 ktrsysret(ffff80002a38c538,5b,0,ffff80002a3fa790) at ktrsysret+0xe1 sys/kern/kern_ktrace.c:209 syscall(ffff80002a3fa840) at syscall+0xa43 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a3fa840) at syscall+0xa43 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d4a32aa09a0, count: -7