witness: lock_object uninitialized: 0xffff800000e89028 Starting stack trace... witness_checkorder(ffff800000e89028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000e89028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000e89018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e89000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000e89000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000ffffadc0) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff8000244ee550,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff8000244ee550,ffff8000245796e0,ffff800024579740) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000245797b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000245797b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffafc0, 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(ffff800000e89028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000e89028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000e89018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e89000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000e89000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000ffffadc0) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff8000244ee550,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff8000244ee550,ffff8000245796e0,ffff800024579740) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000245797b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000245797b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffafc0, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800024579480 rbx 0x3 rdx 0 rcx 0 rax 0xffff8000244ee550 r8 0xffff800024579420 r9 0x8080808080808080 r10 0xc274102bbe33dda6 r11 0x297e1cc43a4225a6 r12 0xffff800000e89001 r13 0xffff800000e89028 r14 0 r15 0 rip 0xffffffff820ea248 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800024579470 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=319532 stat=onproc flags process=1008 proc=2000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021236540,0xffffffff8293a028 process=0xffff8000ffffadc0 user=0xffff800024574000, vmspace=0xfffffd80797c18d0 estcpu=36, cpticks=11, pctcpu=0.0 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 55881 199421 103 0 2 0 syz-executor.3 55881 378950 103 0 3 0x4000080 fsleep syz-executor.3 2353 385911 66945 0 2 0x480 syz-executor.2 2353 304947 66945 0 3 0x4000080 ttyout syz-executor.2 2353 184843 66945 0 3 0x4000080 netio syz-executor.2 2353 503230 66945 0 3 0x4000080 ttyout syz-executor.2 2353 119372 66945 0 3 0x4000080 fsleep syz-executor.2 66945 35763 57392 0 2 0x482 syz-executor.2 27254 42906 57392 0 2 0x482 syz-executor.1 85306 410032 57392 0 2 0x482 syz-executor.0 76666 257994 0 0 3 0x14200 acct acct 103 384962 57392 0 2 0x482 syz-executor.3 31621 212729 1 0 2 0x100083 getty 42662 203705 0 0 3 0x14280 nfsidl nfsio 70696 135018 0 0 3 0x14280 nfsidl nfsio 2819 227254 0 0 3 0x14280 nfsidl nfsio 74198 139842 0 0 3 0x14280 nfsidl nfsio 97784 217629 0 0 3 0x14280 nfsidl nfsio 36843 157723 0 0 3 0x14280 nfsidl nfsio 1201 184623 0 0 3 0x14280 nfsidl nfsio 20573 463266 0 0 3 0x14280 nfsidl nfsio 60197 170636 0 0 3 0x14280 nfsidl nfsio 18727 128154 0 0 3 0x14280 nfsidl nfsio 32096 122134 0 0 3 0x14280 nfsidl nfsio 66705 368741 0 0 3 0x14280 nfsidl nfsio 74507 492354 0 0 3 0x14280 nfsidl nfsio 96481 319871 0 0 3 0x14280 nfsidl nfsio 8122 193190 0 0 3 0x14280 nfsidl nfsio 5895 151612 0 0 3 0x14280 nfsidl nfsio 83938 73551 0 0 3 0x14280 nfsidl nfsio 5541 92629 0 0 3 0x14280 nfsidl nfsio 62993 144445 0 0 3 0x14280 nfsidl nfsio 33065 420753 0 0 3 0x14280 nfsidl nfsio 32307 97488 0 0 3 0x14200 bored sosplice 57392 410280 16040 0 3 0x82 thrsleep syz-fuzzer 57392 190740 16040 0 3 0x4000082 thrsleep syz-fuzzer 57392 428726 16040 0 3 0x4000082 thrsleep syz-fuzzer 57392 432267 16040 0 3 0x4000082 thrsleep syz-fuzzer 57392 191098 16040 0 3 0x4000082 thrsleep syz-fuzzer 57392 70978 16040 0 3 0x4000082 thrsleep syz-fuzzer 57392 438035 16040 0 3 0x4000082 thrsleep syz-fuzzer 57392 190936 16040 0 3 0x4000082 kqread syz-fuzzer 57392 506415 16040 0 3 0x4000082 thrsleep syz-fuzzer 16040 51455 49631 0 3 0x10008a sigsusp ksh 49631 356257 5033 0 3 0x9a poll sshd 5033 411958 1 0 3 0x88 poll sshd 48973 95273 2827 74 3 0x100092 bpf pflogd 2827 462041 1 0 3 0x80 netio pflogd 23711 232580 50881 73 2 0x100090 syslogd 50881 425885 1 0 3 0x100082 netio syslogd 36441 467090 1 0 3 0x100080 kqread resolvd 70077 182386 95391 77 3 0x100092 kqread dhcpleased 48473 94547 95391 77 3 0x100092 kqread dhcpleased 95391 290956 1 0 3 0x80 kqread dhcpleased 70337 149352 0 0 3 0x14200 bored smr 7527 463119 0 0 2 0x14200 zerothread 29040 126929 0 0 3 0x14200 aiodoned aiodoned 35509 522602 0 0 3 0x14200 syncer update 76877 466065 0 0 3 0x14200 cleaner cleaner 62084 170164 0 0 3 0x14200 reaper reaper 90597 327701 0 0 3 0x14200 pgdaemon pagedaemon 83702 291927 0 0 3 0x14200 bored viomb 59639 245017 0 0 3 0x40014200 acpi0 acpi0 47050 428280 0 0 7 0x40014200 idle1 83611 46188 0 0 3 0x14200 bored softnet 4403 188761 0 0 3 0x14200 bored systqmp 83675 453681 0 0 3 0x14200 bored systq 8008 126426 0 0 2 0x40014200 softclock 62850 145208 0 0 3 0x40014200 idle0 1 394966 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 10207 6500K 8149K 78643K 43511 0 pcb 13 20K 25K 78643K 4546 0 rtable 139 5K 7K 78643K 6921 0 ifaddr 64 21K 25K 78643K 2242 0 sysctl 3 1K 2K 78643K 9 0 counters 48 34K 35K 78643K 790 0 ioctlops 0 0K 4K 78643K 6630 0 iov 0 0K 48K 78643K 2523 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1449 91K 91K 78643K 14971 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 201 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 3232 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 8 25K 49K 78643K 25537 0 sigio 0 0K 0K 78643K 497 0 proc 77 111K 111K 78643K 5817 0 subproc 52 3K 3K 78643K 2085 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 3942 0 in_multi 51 3K 4K 78643K 3391 0 ether_multi 1 0K 0K 78643K 414 0 mrt 2 0K 0K 78643K 154 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 265 1182K 1182K 78643K 265 0 exec 0 0K 2K 78643K 7612 0 pfkey data 0 0K 1K 78643K 82 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 675 1864K 1864K 78643K 307633 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 1539 0 NDP 9 0K 1K 78643K 813 0 temp 103 4202K 8298K 78643K 185161 0 kqueue 10 14K 25K 78643K 1081 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 1853 0 1850 25 22 3 3 0 8 2 rtentry 112 2231 0 2174 2 0 2 2 0 8 0 unpcb 136 67352 0 67333 267 266 1 9 0 8 0 syncache 296 85 0 85 23 23 0 1 0 8 0 tcpcb 736 8359 0 8347 305 297 8 19 0 8 6 arp 120 349 0 338 1 0 1 1 0 8 0 inpcb 304 25554 0 25540 351 344 7 16 0 8 5 rttmr 72 43 0 43 15 15 0 1 0 8 0 nd6 48 630 0 620 1 0 1 1 0 8 0 pkpcb 40 268 0 268 18 18 0 2 0 8 0 kcovpl 48 158 0 154 1 0 1 1 0 8 0 ppxss 1248 107 0 107 23 22 1 1 0 8 1 pffrag 232 147 0 147 14 14 0 1 0 482 0 pffrnode 88 145 0 145 14 14 0 1 0 8 0 pffrent 40 1685 0 1685 17 17 0 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 pfrktable 1344 44 0 44 2 2 0 1 0 8 0 pftag 88 4 0 4 1 1 0 1 0 8 0 pfstitem 24 17 0 15 1 0 1 1 0 8 0 pfstkey 112 17 0 15 1 0 1 1 0 8 0 pfstate 320 17 0 15 2 1 1 2 0 8 0 pfrule 1360 53 0 41 3 1 2 2 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 8680 0 8468 42 27 15 20 0 8 0 art_table 32 8682 0 8469 3 0 3 3 0 8 0 art_node 16 2181 0 2132 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 3230 0 3220 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 33759 0 32251 95 0 95 95 0 8 0 ffsino 272 33759 0 32251 101 0 101 101 0 8 0 nchpl 144 66621 0 65019 61 0 61 61 0 8 0 uvmvnodes 80 6506 0 0 133 0 133 133 0 8 0 vnodes 224 6506 0 0 383 0 383 383 0 8 0 namei 1024 246392 0 246392 10 9 1 1 0 8 1 percpumem 16 407 0 371 1 0 1 1 0 8 0 vcpupl 2048 204 0 0 26 0 26 26 0 8 0 vmpool 560 266 0 62 16 1 15 15 0 8 0 pfiaddrpl 120 12 0 12 2 2 0 1 0 8 0 scsiplug 72 7 0 7 3 3 0 1 0 8 0 scxspl 216 201513 0 201513 41 39 2 8 0 8 2 plimitpl 152 2896 0 2885 1 0 1 1 0 8 0 sigapl 424 25351 0 25293 7 0 7 7 0 8 0 futexpl 64 233989 0 233987 8 7 1 1 0 8 0 knotepl 112 273 0 0 5 1 4 4 0 8 0 kqueuepl 216 5376 0 5368 94 93 1 5 0 8 0 pipepl 336 5520 0 5504 130 128 2 9 0 8 0 fdescpl 496 25310 0 25289 5 2 3 4 0 8 0 filepl 152 218478 0 218315 330 318 12 21 0 8 4 lockfpl 104 8012 0 8008 24 22 2 4 0 8 1 lockfspl 48 1973 0 1970 1 0 1 1 0 8 0 sessionpl 144 185 0 172 1 0 1 1 0 8 0 pgrppl 48 345 0 332 1 0 1 1 0 8 0 ucredpl 96 22711 0 22696 1 0 1 1 0 8 0 zombiepl 144 25455 0 25453 5 4 1 1 0 8 0 processpl 1064 25351 0 25292 4 0 4 4 0 8 0 procpl 672 66022 0 65950 45 38 7 8 0 8 0 srpgc 96 236 0 236 26 26 0 1 0 8 0 sosppl 168 191 0 191 34 33 1 1 0 8 1 sockpl 480 95144 0 95108 1775 1762 13 34 0 8 7 mcl64k 65536 41 0 0 4 1 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 30 0 0 2 1 1 2 0 8 0 mcl8k 8192 25 0 0 4 1 3 3 0 8 0 mcl4k 4096 41 0 0 5 2 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 383 0 0 18 1 17 17 0 8 0 mtagpl 96 1196 0 0 9 0 9 9 0 8 0 mbufpl 256 9729 0 0 565 1 564 564 0 8 0 bufpl 288 49467 0 42931 468 0 468 468 0 8 0 anonpl 24 6561638 0 6539587 546 406 140 211 0 186 0 amapchunkpl 152 764494 0 763712 252 219 33 61 0 158 0 amappl16 200 71464 0 70531 358 308 50 62 0 8 0 amappl15 192 4942 0 4942 8 8 0 1 0 8 0 amappl14 184 4990 0 4988 2 1 1 1 0 8 0 amappl13 176 1819 0 1816 1 0 1 1 0 8 0 amappl12 168 1838 0 1831 1 0 1 1 0 8 0 amappl11 160 4351 0 4336 1 0 1 1 0 8 0 amappl10 152 3335 0 3326 1 0 1 1 0 8 0 amappl9 144 1600 0 1596 1 0 1 1 0 8 0 amappl8 136 8065 0 7964 4 0 4 4 0 8 0 amappl7 128 5580 0 5565 1 0 1 1 0 8 0 amappl6 120 2247 0 2226 1 0 1 1 0 8 0 amappl5 112 22009 0 21984 1 0 1 1 0 8 0 amappl4 104 13244 0 13213 1 0 1 1 0 8 0 amappl3 96 4475 0 4452 1 0 1 1 0 8 0 amappl2 88 3465 0 3398 8 6 2 2 0 8 0 amappl1 80 453851 0 453339 14 2 12 13 0 8 0 amappl 88 304325 0 303978 11 2 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 25576 0 25350 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 25576 0 25350 2 0 2 2 0 8 0 vmmpekpl 168 170631 0 170563 5 1 4 4 0 8 0 vmmpepl 168 2363808 0 2360849 703 567 136 161 0 357 0 vmsppl 368 25575 0 25350 25 4 21 21 0 8 0 rwobjpl 56 550833 0 542178 189 66 123 123 0 8 0 pdppl 4096 51160 0 50904 400 142 258 259 0 8 2 pvpl 32 11192914 0 11170177 823 629 194 320 0 265 0 pmappl 248 25575 0 25350 17 2 15 15 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 2212 0 617 46 0 46 46 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(ffff800000e89028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000e89028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000e89018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e89000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000e89000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000ffffadc0) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff8000244ee550,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff8000244ee550,ffff8000245796e0,ffff800024579740) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000245797b0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000245797b0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffafc0, 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