witness: lock_object uninitialized: 0xffff800000fd1028 Starting stack trace... witness_checkorder(ffff800000fd1028,9,0) at witness_checkorder+0x13b witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000fd1028,9,0) at witness_checkorder+0x13b sys/kern/subr_witness.c:777 rw_enter_write(ffff800000fd1018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000fd1000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002d713100) at unveil_destroy+0x9d sys/kern/kern_unveil.c:183 exit1(ffff80002a1aaaa0,0,0,1) at exit1+0x3ef sys/kern/kern_exit.c:218 sys_exit(ffff80002a1aaaa0,ffff800033f42670,ffff800033f425d0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800033f42670) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800033f42670) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fcc90e0a610, count: 249 End of stack trace. Stopped at db_enter+0x1c: 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000fd1028,9,0) at witness_checkorder+0x140 rw_enter_write(ffff800000fd1018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000fd1000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002d713100) at unveil_destroy+0x9d sys/kern/kern_unveil.c:183 exit1(ffff80002a1aaaa0,0,0,1) at exit1+0x3ef sys/kern/kern_exit.c:218 sys_exit(ffff80002a1aaaa0,ffff800033f42670,ffff800033f425d0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800033f42670) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800033f42670) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fcc90e0a610, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800033f42330 rbx 0 rdx 0 rcx 0xffff80002a1aaaa0 rax 0xffffffff82d12ff0 cpu_info_full_primary+0x1ff0 r8 0xffff800033f422d0 r9 0x8080808080808080 r10 0xd4e6aaee4c85bdf9 r11 0xf00ee128dcb8c376 r12 0 r13 0x1 r14 0xffff800000fd1028 r15 0x3 rip 0xffffffff8114c29c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800033f42320 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.5) tid=243776 pid=93669 tcnt=1 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a1aaaa0 forw=0xffffffffffffffff, list=0xffff80002a1a9d58,0xffff80002b46f810 process=0xffff80002d713100 user=0xffff800033f3d000, vmspace=0xfffffd8068ecb3b0 estcpu=36, cpticks=8, pctcpu=0.0, user=0, sys=8, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87308 217098 44669 0 2 0 syz-executor.3 87308 482985 44669 0 7 0x4000000 syz-executor.3 86785 474096 29565 0 2 0x480 syz-executor.6 86785 464432 29565 0 3 0x4000080 fsleep syz-executor.6 81933 386376 72138 0 2 0 syz-executor.7 81933 426173 72138 0 3 0x4000080 fsleep syz-executor.7 19970 207020 29540 0 2 0x480 syz-executor.1 19970 505097 29540 0 3 0x4000080 fsleep syz-executor.1 19970 131586 29540 0 3 0x4000080 fsleep syz-executor.1 19970 445185 29540 0 3 0x4000080 fsleep syz-executor.1 70414 418673 65397 0 2 0 syz-executor.4 70414 3164 65397 0 2 0x4000000 syz-executor.4 72532 91224 46315 0 2 0x490 syz-executor.2 72532 278753 46315 0 3 0x4000090 netio syz-executor.2 72532 285630 46315 0 3 0x4000090 fsleep syz-executor.2 72532 405876 46315 0 3 0x4000090 fsleep syz-executor.2 65397 359304 15230 0 2 0x482 syz-executor.4 29565 68180 15230 0 2 0x482 syz-executor.6 60845 86963 15230 0 2 0x2 syz-executor.0 93998 25107 0 0 3 0x14280 nfsidl nfsio 64794 445552 0 0 3 0x14280 nfsidl nfsio 49221 275783 0 0 3 0x14280 nfsidl nfsio 29547 460726 0 0 3 0x14280 nfsidl nfsio 75061 519721 0 0 3 0x14280 nfsidl nfsio 44806 391974 0 0 3 0x14280 nfsidl nfsio 72472 472715 0 0 3 0x14280 nfsidl nfsio 6305 424674 0 0 3 0x14280 nfsidl nfsio 39127 323349 0 0 3 0x14280 nfsidl nfsio 76868 427503 0 0 3 0x14280 nfsidl nfsio 22491 309749 0 0 3 0x14280 nfsidl nfsio 33667 47238 0 0 3 0x14280 nfsidl nfsio 49558 26725 0 0 3 0x14280 nfsidl nfsio 67575 354425 0 0 3 0x14280 nfsidl nfsio 89279 297671 0 0 3 0x14280 nfsidl nfsio 25583 420798 0 0 3 0x14280 nfsidl nfsio 33095 311021 0 0 3 0x14280 nfsidl nfsio 48609 124419 0 0 3 0x14280 nfsidl nfsio 24563 310556 0 0 3 0x14280 nfsidl nfsio 75308 469521 0 0 3 0x14280 nfsidl nfsio 44669 309528 15230 0 2 0x482 syz-executor.3 29540 476839 15230 0 2 0x482 syz-executor.1 72138 214893 15230 0 2 0x482 syz-executor.7 46315 165321 15230 0 2 0x482 syz-executor.2 30105 334273 0 0 3 0x14200 bored sosplice 95968 196519 15230 0 2 0x482 syz-executor.5 15230 328722 93225 0 3 0x1a000082 wait syz-fuzzer 15230 515640 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 314151 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 501008 93225 0 3 0x1e000082 wait syz-fuzzer 15230 432298 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 365822 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 292994 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 208553 93225 0 3 0x1e000082 wait syz-fuzzer 15230 102933 93225 0 3 0x1e000082 wait syz-fuzzer 15230 62959 93225 0 3 0x1e000082 wait syz-fuzzer 15230 403807 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 225937 93225 0 3 0x1e000082 thrsleep syz-fuzzer 15230 466023 93225 0 3 0x1e000082 wait syz-fuzzer 15230 113364 93225 0 3 0x1e000082 kqread syz-fuzzer 15230 464502 93225 0 3 0x1e000082 wait syz-fuzzer 15230 147910 93225 0 3 0x1e000082 wait syz-fuzzer 93225 417804 7683 0 3 0x810008a sigsusp ksh 7683 64826 29386 0 3 0x1800009a kqread sshd 35079 39051 1 0 2 0x18100083 getty 29386 237526 1 0 3 0x18000088 kqread sshd 71976 106743 89600 74 3 0x19100092 bpf pflogd 89600 18922 1 0 3 0x18000080 netio pflogd 50463 265310 4990 73 2 0x19100090 syslogd 4990 164696 1 0 3 0x18100082 netio syslogd 22200 379495 1 0 3 0x18100080 kqread resolvd 81311 207133 23293 77 3 0x18100092 kqread dhcpleased 49851 414558 23293 77 3 0x18100092 kqread dhcpleased 23293 9937 1 0 3 0x18000080 kqread dhcpleased 29469 509483 0 0 2 0x14200 smr 64166 509334 0 0 2 0x14200 zerothread 59827 263736 0 0 3 0x14200 aiodoned aiodoned 72157 38872 0 0 3 0x14200 syncer update 93264 109995 0 0 3 0x14200 cleaner cleaner 73041 105191 0 0 2 0x14200 reaper 22508 377773 0 0 3 0x14200 pgdaemon pagedaemon 96370 136393 0 0 3 0x14200 bored viomb 80292 17850 0 0 3 0x40014200 acpi0 acpi0 20726 72907 0 0 3 0x40014200 idle1 73801 18903 0 0 3 0x14200 bored softnet3 36932 248379 0 0 3 0x14200 bored softnet2 27601 472512 0 0 3 0x14200 bored softnet1 28907 18997 0 0 3 0x14200 bored softnet0 78788 275224 0 0 3 0x14200 bored systqmp 38991 519038 0 0 3 0x14200 bored systq 48549 386906 0 0 3 0x14200 tmoslp softclockmp 28002 302569 0 0 3 0x40014200 tmoslp softclock 73643 155608 0 0 3 0x40014200 idle0 1 337557 0 0 3 0x8000082 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 10207 6558K 6946K 166960K 16888 0 pcb 15 13K 14K 166960K 170 0 rtable 225 6K 7K 166960K 835 0 pf 32 9K 10K 166960K 89 0 ifaddr 43 15K 15K 166960K 111 0 ifgroup 55 2K 2K 166960K 137 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 110 0 ioctlops 0 0K 4K 166960K 1826 0 iov 0 0K 32K 166960K 220 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1466 92K 92K 166960K 3932 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 39 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 488 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 93K 166960K 4550 0 sigio 0 0K 0K 166960K 257 0 proc 79 115K 115K 166960K 962 0 subproc 104 6K 6K 166960K 251 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 180 0 in_multi 91 6K 7K 166960K 269 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 139 625K 625K 166960K 139 0 exec 0 0K 1K 166960K 874 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 421 219K 219K 166960K 46411 0 UVM aobj 131 4K 4K 166960K 143 0 pinsyscall 26 52K 108K 166960K 1609 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 181 0 NDP 12 0K 0K 166960K 77 0 temp 74 6812K 6933K 166960K 70376 0 kqueue 12 18K 26K 166960K 545 0 SYN cache 2 760K 768K 166960K 3 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 120 208 0 205 3 2 1 3 0 8 0 rtentry 112 277 0 173 4 0 4 4 0 8 0 unpcb 144 2823 0 2806 27 21 6 6 0 8 5 syncache 336 28 0 28 7 6 1 1 0 8 1 sackhl 24 3 0 3 1 0 1 1 0 8 1 tcpqe 32 287 0 287 3 2 1 1 0 8 1 tcpcb 808 1027 0 1017 32 27 5 11 0 8 3 arp 120 49 0 31 1 0 1 1 0 8 0 inpcb 392 2297 0 2283 36 28 8 12 0 8 6 nd6 136 63 0 43 1 0 1 1 0 8 0 pkpcb 40 11 0 11 3 3 0 1 0 8 0 kcovpl 48 19 0 11 1 0 1 1 0 8 0 ppxss 1168 5 0 5 1 0 1 1 0 8 1 pffrag 232 10 0 9 1 0 1 1 0 482 0 pffrnode 88 10 0 9 1 0 1 1 0 8 0 pffrent 40 36 0 35 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 24 119 0 100 1 0 1 1 0 8 0 pfstkey 128 119 0 100 2 0 2 2 0 8 0 pfstate 376 119 0 100 4 1 3 4 0 8 1 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 1093 0 667 32 5 27 29 0 8 0 art_table 32 1094 0 667 4 0 4 4 0 8 0 art_node 16 276 0 180 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 9 1 0 1 1 0 8 0 semapl 112 486 0 476 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 7447 0 5902 97 0 97 97 0 8 0 ffsino 272 7447 0 5902 104 0 104 104 0 8 0 nchpl 144 13469 0 11730 67 0 67 67 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 43854 0 43853 2 1 1 2 0 8 0 percpumem 16 69 0 23 1 0 1 1 0 8 0 vcpupl 2048 77 0 0 10 0 10 10 0 8 0 vmpool 696 90 0 13 7 0 7 7 0 8 0 kstatmem 264 70 0 46 2 0 2 2 0 8 0 scxspl 216 42918 0 42918 20 19 1 8 1 8 1 plimitpl 152 1196 0 1180 1 0 1 1 0 8 0 sigapl 424 4864 0 4795 9 1 8 8 0 8 0 futexpl 64 31497 0 31490 1 0 1 1 0 8 0 knotepl 120 265 0 0 7 1 6 6 0 8 0 kqueuepl 216 1251 0 1243 15 10 5 5 0 8 4 pipepl 320 994 0 966 30 24 6 10 0 8 3 fdescpl 496 4824 0 4795 10 5 5 5 0 8 1 filepl 152 24983 0 24734 50 33 17 24 0 8 5 lockfpl 104 2307 0 2305 6 5 1 2 0 8 0 lockfspl 48 875 0 873 1 0 1 1 0 8 0 sessionpl 144 35 0 18 1 0 1 1 0 8 0 pgrppl 48 94 0 77 1 0 1 1 0 8 0 ucredpl 104 3435 0 3421 1 0 1 1 0 8 0 zombiepl 144 6389 0 6388 2 1 1 1 0 8 0 processpl 1136 4864 0 4795 7 1 6 6 0 8 0 procpl 680 12350 0 12255 13 4 9 10 0 8 0 srpgc 96 8 0 8 4 4 0 1 0 8 0 sosppl 168 26 0 26 6 6 0 1 0 8 0 sockpl 584 5339 0 5305 48 37 11 12 0 8 8 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 10 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 12 0 0 1 0 1 1 0 8 0 mcl8k 8192 18 0 0 3 1 2 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 359 0 0 45 1 44 45 0 8 1 mtagpl 96 228 0 0 5 0 5 5 0 8 0 mbufpl 256 475 0 0 24 0 24 24 0 8 0 bufpl 280 11205 0 4936 449 0 449 449 0 8 0 anonpl 24 543365 0 528744 130 19 111 113 0 186 10 amapchunkpl 152 147411 0 146466 66 15 51 51 0 158 12 amappl16 200 10948 0 10467 47 12 35 38 0 8 6 amappl15 192 48 0 46 1 0 1 1 0 8 0 amappl14 184 188 0 173 2 1 1 2 0 8 0 amappl13 176 16 0 16 2 2 0 1 0 8 0 amappl12 168 5632 0 5601 3 1 2 2 0 8 0 amappl11 160 89 0 74 1 0 1 1 0 8 0 amappl10 152 65 0 55 1 0 1 1 0 8 0 amappl9 144 301 0 298 1 0 1 1 0 8 0 amappl8 136 290 0 209 3 0 3 3 0 8 0 amappl7 128 74 0 61 1 0 1 1 0 8 0 amappl6 120 533 0 512 2 1 1 2 0 8 0 amappl5 112 296 0 281 1 0 1 1 0 8 0 amappl4 104 718 0 674 3 1 2 3 0 8 0 amappl3 96 28693 0 28595 3 0 3 3 0 8 0 amappl2 88 5419 0 5338 4 2 2 4 0 8 0 amappl1 80 25867 0 25324 23 11 12 23 0 8 0 amappl 88 45625 0 45360 7 0 7 7 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 4914 0 4807 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4914 0 4807 1 0 1 1 0 8 0 vmmpekpl 168 39861 0 39793 4 0 4 4 0 8 0 vmmpepl 168 302543 0 299975 232 98 134 141 0 357 9 vmsppl 448 4913 0 4807 14 2 12 12 0 8 0 rwobjpl 56 82249 0 74567 117 6 111 111 0 8 1 pdppl 4096 9835 0 9691 306 161 145 146 0 8 1 pvpl 32 45945 0 0 371 0 371 371 0 265 0 pmappl 248 4913 0 4807 8 1 7 7 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 752 0 247 15 0 15 15 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000fd1028,9,0) at witness_checkorder+0x140 rw_enter_write(ffff800000fd1018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000fd1000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002d713100) at unveil_destroy+0x9d sys/kern/kern_unveil.c:183 exit1(ffff80002a1aaaa0,0,0,1) at exit1+0x3ef sys/kern/kern_exit.c:218 sys_exit(ffff80002a1aaaa0,ffff800033f42670,ffff800033f425d0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800033f42670) at syscall+0x53b mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff800033f42670) at syscall+0x53b sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6fcc90e0a610, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82d92e28) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d92e28) at __mp_lock+0x122 sys/kern/kern_lock.c:147 vn_ioctl(fffffd80690264d0,80044b02,ffff80002d78b8f0,ffff80002b46f800) at vn_ioctl+0x44 sys/kern/vfs_vnops.c:508 sys_ioctl(ffff80002b46f800,ffff80002d78bad0,ffff80002d78ba30) at sys_ioctl+0x4a9 syscall(ffff80002d78bad0) at syscall+0x5b5 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002d78bad0) at syscall+0x5b5 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf3446807800, count: -8