witness: lock_object uninitialized: 0xffff800000eb4028 Starting stack trace... witness_checkorder(ffff800000eb4028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000eb4028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000eb4018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000eb4000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000eb4000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f0438) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff8000246a3500,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:225 single_thread_check_locked(ffff8000246a3500,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1958 userret(ffff8000246a3500) at userret+0x224 single_thread_check sys/kern/kern_sig.c:1999 [inline] userret(ffff8000246a3500) at userret+0x224 sys/kern/kern_sig.c:1946 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7f7fffffadd0, count: 249 End of stack trace. Stopped at db_enter+0x18: 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+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000eb4028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000eb4028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000eb4018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000eb4000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000eb4000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f0438) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff8000246a3500,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:225 single_thread_check_locked(ffff8000246a3500,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1958 userret(ffff8000246a3500) at userret+0x224 single_thread_check sys/kern/kern_sig.c:1999 [inline] userret(ffff8000246a3500) at userret+0x224 sys/kern/kern_sig.c:1946 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7f7fffffadd0, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800027c49270 rbx 0x3 rdx 0 rcx 0 rax 0xffff8000246a3500 r8 0xffff800027c49210 r9 0x8080808080808080 r10 0xd0b63ad352a229be r11 0xc470484c753f046a r12 0xffff800000eb4001 r13 0xffff800000eb4028 r14 0 r15 0 rip 0xffffffff81410c88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800027c49260 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=286113 stat=onproc flags process=1008 proc=82000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000246a2fc0,0xffffffff8283e338 process=0xffff8000211f0438 user=0xffff800027c44000, vmspace=0xfffffd80726ae5c8 estcpu=36, cpticks=11, pctcpu=0.0 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41395 176908 29387 0 2 0 syz-executor.0 41395 363685 29387 0 3 0x4000080 fsleep syz-executor.0 81762 432577 98786 0 2 0 syz-executor.2 81762 412488 98786 0 3 0x4000080 fsleep syz-executor.2 84497 396415 86772 0 2 0x482 syz-executor.1 1032 121802 86772 0 2 0x482 syz-executor.3 29387 399519 86772 0 2 0x482 syz-executor.0 91566 71456 1 0 2 0x100083 getty 98786 296522 86772 0 2 0x482 syz-executor.2 50451 391122 0 0 3 0x14200 acct acct 10315 235847 0 0 3 0x14280 nfsidl nfsio 2514 287595 0 0 3 0x14280 nfsidl nfsio 49317 427956 0 0 3 0x14280 nfsidl nfsio 2540 185912 0 0 3 0x14280 nfsidl nfsio 49803 259393 0 0 3 0x14280 nfsidl nfsio 70904 339953 0 0 3 0x14280 nfsidl nfsio 76615 141661 0 0 3 0x14280 nfsidl nfsio 32055 110240 0 0 3 0x14280 nfsidl nfsio 99609 375346 0 0 3 0x14280 nfsidl nfsio 96854 107157 0 0 3 0x14280 nfsidl nfsio 30981 162565 0 0 3 0x14280 nfsidl nfsio 11062 48084 0 0 3 0x14280 nfsidl nfsio 5595 62664 0 0 3 0x14280 nfsidl nfsio 23382 117096 0 0 3 0x14280 nfsidl nfsio 97762 490885 0 0 3 0x14280 nfsidl nfsio 13314 402809 0 0 3 0x14280 nfsidl nfsio 25752 265222 0 0 3 0x14280 nfsidl nfsio 23997 278171 0 0 3 0x14280 nfsidl nfsio 33394 81260 0 0 3 0x14280 nfsidl nfsio 61030 421435 0 0 3 0x14280 nfsidl nfsio 98163 222829 0 0 3 0x14200 bored sosplice 86772 443264 33110 0 3 0x82 thrsleep syz-fuzzer 86772 111340 33110 0 3 0x4000082 thrsleep syz-fuzzer 86772 27074 33110 0 3 0x4000082 thrsleep syz-fuzzer 86772 520997 33110 0 3 0x4000082 thrsleep syz-fuzzer 86772 228943 33110 0 3 0x4000082 thrsleep syz-fuzzer 86772 105083 33110 0 3 0x4000082 thrsleep syz-fuzzer 86772 296082 33110 0 3 0x4000082 kqread syz-fuzzer 86772 428755 33110 0 3 0x4000082 thrsleep syz-fuzzer 86772 274990 33110 0 3 0x4000082 thrsleep syz-fuzzer 33110 40419 91644 0 3 0x10008a sigsusp ksh 91644 219832 14958 0 3 0x9a poll sshd 14958 410469 1 0 3 0x88 poll sshd 51519 252696 18452 74 3 0x100092 bpf pflogd 18452 13939 1 0 3 0x80 netio pflogd 79834 451963 84315 73 2 0x100090 syslogd 84315 240383 1 0 3 0x100082 netio syslogd 10963 72930 1 0 3 0x100080 kqread resolvd 56559 148434 41946 77 3 0x100092 kqread dhcpleased 14705 212915 41946 77 3 0x100092 kqread dhcpleased 41946 27220 1 0 3 0x80 kqread dhcpleased 44643 176450 0 0 2 0x14200 smr 59954 393338 0 0 2 0x14200 zerothread 90581 517008 0 0 3 0x14200 aiodoned aiodoned 65678 323637 0 0 3 0x14200 syncer update 60425 236515 0 0 3 0x14200 cleaner cleaner 17753 491729 0 0 3 0x14200 reaper reaper 97443 470749 0 0 3 0x14200 pgdaemon pagedaemon 23672 265751 0 0 3 0x14200 bored viomb 60024 59613 0 0 3 0x40014200 acpi0 acpi0 81782 2946 0 0 7 0x40014200 idle1 61081 305138 0 0 3 0x14200 bored softnet 91479 50264 0 0 3 0x14200 bored systqmp 3964 321696 0 0 3 0x14200 bored systq 41630 96013 0 0 2 0x40014200 softclock 61985 333463 0 0 3 0x40014200 idle0 1 482671 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 10211 6496K 7618K 78643K 132517 0 pcb 13 20K 22K 78643K 4368 0 rtable 208 28K 29K 78643K 4930 0 ifaddr 93 28K 29K 78643K 2301 0 sysctl 2 0K 2K 78643K 7 0 counters 50 34K 35K 78643K 658 0 ioctlops 0 0K 8K 78643K 10725 0 iov 0 0K 28K 78643K 2088 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1544 97K 97K 78643K 32183 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 181 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 6019 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 9 29K 49K 78643K 25675 0 sigio 0 0K 0K 78643K 345 0 proc 74 111K 111K 78643K 3224 0 subproc 52 3K 3K 78643K 927 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1167 0 in_multi 51 3K 3K 78643K 1801 0 ether_multi 1 0K 0K 78643K 342 0 mrt 1 0K 0K 78643K 133 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 253 1129K 1129K 78643K 253 0 exec 0 0K 2K 78643K 5044 0 pfkey data 0 0K 0K 78643K 4 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 733 1832K 1832K 78643K 318425 0 UVM aobj 131 4K 4K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1634 0 NDP 11 0K 1K 78643K 514 0 temp 123 4234K 4346K 78643K 223220 0 kqueue 10 14K 22K 78643K 965 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> 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 1517 0 1514 19 18 1 3 0 8 0 rtentry 112 1146 0 1089 2 0 2 2 0 8 0 unpcb 136 17416 0 17401 167 166 1 8 0 8 0 syncache 296 101 0 101 31 31 0 1 0 8 0 tcpqe 32 74 0 74 17 17 0 1 0 8 0 tcpcb 736 10299 0 10293 299 295 4 19 0 8 3 arp 120 158 0 148 1 0 1 1 0 8 0 inpcb 304 28499 0 28492 296 292 4 12 0 8 3 rttmr 72 31 0 31 10 10 0 1 0 8 0 ip6q 72 3 0 3 1 1 0 1 0 8 0 ip6af 40 33 0 33 1 1 0 1 0 8 0 nd6 48 292 0 281 1 0 1 1 0 8 0 pkpcb 40 230 0 230 14 14 0 1 0 8 0 kcovpl 48 71 0 67 1 0 1 1 0 8 0 ppxss 1248 99 0 99 18 18 0 1 0 8 0 pfstscr 40 194 0 194 13 13 0 1 0 8 0 pffrag 232 309 0 309 10 10 0 1 0 482 0 pffrnode 88 309 0 309 10 10 0 1 0 8 0 pffrent 40 1648 0 1648 10 10 0 1 0 8 0 pfosfp 40 1441 0 1017 5 0 5 5 0 8 0 pfosfpen 112 1441 0 725 21 0 21 21 0 8 0 pfrktable 1344 442 0 413 12 9 3 3 0 8 0 pftag 88 33 0 28 1 0 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 65 0 63 1 0 1 1 0 8 0 pfstkey 112 429 0 427 1 0 1 1 0 8 0 pfstate 320 234 0 232 3 2 1 3 0 8 0 pfsrctr 152 17 0 17 2 2 0 1 0 8 0 pfrule 1360 5382 0 5057 29 1 28 28 0 8 0 art_heap8 4096 5 0 4 3 2 1 3 0 8 0 art_heap4 256 5353 0 5089 58 40 18 19 0 8 0 art_table 32 5358 0 5093 6 3 3 3 0 8 0 art_node 16 1145 0 1096 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 7 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 5950 0 5940 1 0 1 1 0 8 0 shmpl 112 131 0 3 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 34945 0 33441 95 0 95 95 0 8 0 ffsino 272 34945 0 33441 101 0 101 101 0 8 0 nchpl 144 69047 0 67449 61 0 61 61 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 258307 0 258307 4 3 1 1 0 8 1 percpumem 16 341 0 304 1 0 1 1 0 8 0 vcpupl 2048 293 0 0 37 0 37 37 0 8 0 vmpool 560 327 0 34 22 1 21 21 0 8 0 pfiaddrpl 120 325 0 254 12 9 3 3 0 8 0 scsiplug 72 15 0 15 5 5 0 1 0 8 0 scxspl 216 209468 0 209468 39 38 1 8 0 8 1 plimitpl 152 2784 0 2773 1 0 1 1 0 8 0 sigapl 424 25765 0 25706 8 1 7 7 0 8 0 futexpl 64 250821 0 250819 2 1 1 1 0 8 0 knotepl 112 147 0 0 3 0 3 3 0 8 0 kqueuepl 216 4679 0 4669 101 100 1 5 0 8 0 pipepl 336 4313 0 4297 140 136 4 9 0 8 2 fdescpl 496 25700 0 25678 5 2 3 4 0 8 0 filepl 152 188817 0 188664 277 261 16 18 0 8 9 lockfpl 104 7976 0 7974 17 16 1 2 0 8 0 lockfspl 48 2164 0 2162 1 0 1 1 0 8 0 sessionpl 144 89 0 76 1 0 1 1 0 8 0 pgrppl 48 146 0 133 1 0 1 1 0 8 0 ucredpl 96 20125 0 20113 1 0 1 1 0 8 0 zombiepl 144 25804 0 25802 3 2 1 1 0 8 0 processpl 1064 25765 0 25706 6 2 4 5 0 8 0 procpl 672 68744 0 68675 25 18 7 8 0 8 0 srpgc 96 90 0 90 22 22 0 1 0 8 0 sosppl 168 208 0 208 32 32 0 1 0 8 0 sockpl 480 47677 0 47649 838 829 9 34 0 8 4 mcl64k 65536 28 0 0 4 1 3 3 0 8 0 mcl16k 16384 41 0 0 6 3 3 3 0 8 0 mcl12k 12288 49 0 0 2 0 2 2 0 8 0 mcl9k 9216 36 0 0 2 0 2 2 0 8 0 mcl8k 8192 44 0 0 4 0 4 4 0 8 0 mcl4k 4096 48 0 0 4 1 3 3 0 8 0 mcl2k2 2112 19 0 0 2 0 2 2 0 8 0 mcl2k 2048 805 0 0 53 2 51 51 0 8 0 mtagpl 96 1765 0 0 25 0 25 25 0 8 0 mbufpl 256 12043 0 0 686 0 686 686 0 8 0 bufpl 288 46619 0 40275 454 0 454 454 0 8 0 anonpl 24 7116933 0 7089911 443 280 163 176 0 186 0 amapchunkpl 152 777020 0 776090 227 191 36 45 0 158 0 amappl16 200 64520 0 63472 226 169 57 68 0 8 0 amappl15 192 8036 0 8036 3 3 0 1 0 8 0 amappl14 184 6556 0 6553 1 0 1 1 0 8 0 amappl13 176 2339 0 2338 1 0 1 1 0 8 0 amappl12 168 2140 0 2136 1 0 1 1 0 8 0 amappl11 160 2241 0 2222 1 0 1 1 0 8 0 amappl10 152 2634 0 2618 1 0 1 1 0 8 0 amappl9 144 2007 0 2005 1 0 1 1 0 8 0 amappl8 136 4906 0 4765 5 0 5 5 0 8 0 amappl7 128 3265 0 3252 1 0 1 1 0 8 0 amappl6 120 2104 0 2079 1 0 1 1 0 8 0 amappl5 112 23688 0 23659 1 0 1 1 0 8 0 amappl4 104 7878 0 7850 1 0 1 1 0 8 0 amappl3 96 4310 0 4291 1 0 1 1 0 8 0 amappl2 88 4387 0 4303 5 3 2 2 0 8 0 amappl1 80 458809 0 458289 14 3 11 13 0 8 0 amappl 88 316242 0 315878 12 3 9 9 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 26027 0 25711 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 26027 0 25711 2 0 2 2 0 8 0 vmmpekpl 168 163184 0 163112 4 0 4 4 0 8 0 vmmpepl 168 2315592 0 2312144 739 584 155 187 0 357 0 vmsppl 368 26026 0 25711 30 1 29 29 0 8 0 rwobjpl 56 546953 0 538694 150 32 118 120 0 8 0 pdppl 4096 52062 0 51715 426 78 348 348 0 8 1 pvpl 32 11681701 0 11657255 648 447 201 251 0 265 3 pmappl 248 26026 0 25711 20 0 20 20 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 2439 0 565 55 1 54 54 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000eb4028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000eb4028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000eb4018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000eb4000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000eb4000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f0438) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff8000246a3500,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:225 single_thread_check_locked(ffff8000246a3500,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1958 userret(ffff8000246a3500) at userret+0x224 single_thread_check sys/kern/kern_sig.c:1999 [inline] userret(ffff8000246a3500) at userret+0x224 sys/kern/kern_sig.c:1946 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7f7fffffadd0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a 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+0x23 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020d38ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5