witness: lock_object uninitialized: 0xffff800000f59028 Starting stack trace... witness_checkorder(ffff800000f59028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000f59028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000f59018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000f59000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000f59000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff8008) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002a25faa8,0,0,1) at exit1+0x3d8 sys/kern/kern_exit.c:222 sys_exit(ffff80002a25faa8,ffff80002a2b8100,ffff80002a2b8150) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a2b81d0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d43ea2d97c0, count: 249 End of stack trace. Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000f59028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000f59028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000f59018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000f59000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000f59000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff8008) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002a25faa8,0,0,1) at exit1+0x3d8 sys/kern/kern_exit.c:222 sys_exit(ffff80002a25faa8,ffff80002a2b8100,ffff80002a2b8150) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a2b81d0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d43ea2d97c0, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a2b7e90 rbx 0x3 rdx 0 rcx 0xffff80002a25faa8 rax 0xffff800029d2bff0 r8 0xffff80002a2b7e30 r9 0x8080808080808080 r10 0xb71015f3b45798df r11 0x12ae3716064d337a r12 0xffff800000f59001 r13 0xffff800000f59028 r14 0 r15 0 rip 0xffffffff8230af4c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a2b7e80 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.3) tid=471920 pid=12046 tcnt=1 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a25faa8 forw=0xffffffffffffffff, list=0xffff80002a25f008,0xffffffff82c62498 process=0xffff8000ffff8008 user=0xffff80002a2b3000, vmspace=0xfffffd806efc73a8 estcpu=36, cpticks=14, pctcpu=0.1, user=0, sys=8, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 9455 101679 54308 0 3 0x82 nanoslp syz-executor.3 42476 88621 54308 0 3 0x82 piperd syz-executor.0 16108 401727 54308 0 3 0x82 piperd syz-executor.2 90951 337936 54308 0 3 0x82 piperd syz-executor.1 58726 453491 54308 0 3 0x82 piperd syz-executor.6 24526 86626 54308 0 3 0x82 piperd syz-executor.5 42933 58249 54308 0 3 0x82 piperd syz-executor.7 11830 290192 54308 0 3 0x82 piperd syz-executor.4 20663 207893 0 0 3 0x14200 bored sosplice 21804 169892 14669 0 3 0x100082 netio arp 14669 357965 1 0 3 0x10008a sigsusp sh 54308 450279 38605 0 3 0x2000082 wait syz-fuzzer 54308 248686 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 280509 38605 0 3 0x6000082 wait syz-fuzzer 54308 396513 38605 0 3 0x6000082 kqread syz-fuzzer 54308 470698 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 304204 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 224686 38605 0 3 0x6000082 wait syz-fuzzer 54308 173414 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 490817 38605 0 3 0x6000082 wait syz-fuzzer 54308 478400 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 305945 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 360061 38605 0 3 0x6000082 thrsleep syz-fuzzer 54308 50819 38605 0 3 0x6000082 wait syz-fuzzer 54308 366832 38605 0 3 0x6000082 wait syz-fuzzer 54308 94238 38605 0 3 0x6000082 wait syz-fuzzer 54308 133583 38605 0 3 0x6000082 wait syz-fuzzer 38605 299307 62222 0 3 0x10008a sigsusp ksh 62222 366482 80150 0 3 0x9a kqread sshd 49491 336893 1 0 3 0x100083 ttyin getty 80150 97 1 0 3 0x88 kqread sshd 90603 81110 36875 74 3 0x1100092 bpf pflogd 36875 198562 1 0 3 0x80 netio pflogd 60313 39858 65559 73 3 0x1100090 kqread syslogd 65559 37246 1 0 3 0x100082 netio syslogd 78461 306702 1 0 3 0x100080 kqread resolvd 42554 198387 80294 77 3 0x100092 kqread dhcpleased 27567 66108 80294 77 3 0x100092 kqread dhcpleased 80294 233867 1 0 3 0x80 kqread dhcpleased 12172 77694 0 0 3 0x14200 bored smr 71658 203826 0 0 3 0x14200 pgzero zerothread 62088 321246 0 0 3 0x14200 aiodoned aiodoned 60228 80076 0 0 3 0x14200 syncer update 35838 463757 0 0 3 0x14200 cleaner cleaner 56074 254289 0 0 7 0x14200 reaper 83863 274361 0 0 3 0x14200 pgdaemon pagedaemon 32043 484887 0 0 3 0x14200 bored viomb 16618 53247 0 0 3 0x40014200 acpi0 acpi0 63568 357291 0 0 3 0x40014200 idle1 39664 87882 0 0 3 0x14200 bored softnet3 17581 145100 0 0 3 0x14200 bored softnet2 57747 236340 0 0 3 0x14200 bored softnet1 24063 309996 0 0 3 0x14200 bored softnet0 71147 15608 0 0 3 0x14200 bored systqmp 96123 65299 0 0 3 0x14200 bored systq 26650 110888 0 0 3 0x14200 tmoslp softclockmp 38574 385350 0 0 3 0x40014200 tmoslp softclock 55455 255202 0 0 3 0x40014200 idle0 1 7452 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10211 6482K 7252K 166960K 16445 0 pcb 13 20K 24K 166960K 822 0 rtable 199 6K 7K 166960K 1248 0 pf 30 9K 10K 166960K 263 0 ifaddr 38 14K 16K 166960K 208 0 ifgroup 51 2K 2K 166960K 413 0 sysctl 2 0K 0K 166960K 2 0 counters 60 35K 36K 166960K 256 0 ioctlops 0 0K 4K 166960K 1743 0 iov 0 0K 34K 166960K 1026 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1456 91K 91K 166960K 4883 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 95 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 1343 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 12 41K 93K 166960K 8469 0 sigio 0 0K 0K 166960K 296 0 proc 72 115K 128K 166960K 1432 0 subproc 117 7K 7K 166960K 367 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 261 0 in_multi 77 5K 7K 166960K 397 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 157 705K 705K 166960K 157 0 exec 0 0K 1K 166960K 2310 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 435 211K 215K 166960K 86090 0 UVM aobj 131 6K 6K 166960K 131 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 242 0 NDP 11 0K 1K 166960K 163 0 temp 74 5928K 6060K 166960K 62462 0 kqueue 12 18K 26K 166960K 471 0 SYN cache 2 1304K 1312K 166960K 3 0 ddb{1}> 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 120 400 0 396 7 6 1 3 0 8 0 rtentry 112 415 0 324 4 0 4 4 0 8 0 unpcb 144 14630 0 14615 100 96 4 10 0 8 3 syncache 312 53 0 53 16 16 0 1 0 8 0 sackhl 24 2 0 2 1 1 0 1 0 8 0 tcpqe 32 269 0 269 11 11 0 1 0 8 0 tcpcb 808 1797 0 1783 71 69 2 12 0 8 0 arp 120 83 0 69 1 0 1 1 0 8 0 inpcb 368 5417 0 5400 134 126 8 20 0 8 6 nd6 136 88 0 67 2 0 2 2 0 8 0 pkpcb 40 83 0 83 4 4 0 1 0 8 0 kcovpl 48 28 0 19 1 0 1 1 0 8 0 ppxss 1256 28 0 28 8 8 0 1 0 8 0 pffrag 232 201 0 199 4 3 1 1 0 482 0 pffrnode 88 201 0 199 4 3 1 1 0 8 0 pffrent 40 552 0 550 4 3 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 24 238 0 231 1 0 1 1 0 8 0 pfstkey 128 238 0 231 2 1 1 2 0 8 0 pfstate 376 238 0 231 8 7 1 4 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 1395 0 1003 42 14 28 31 0 8 0 art_table 32 1396 0 1003 4 0 4 4 0 8 0 art_node 16 405 0 322 1 0 1 1 0 8 0 semapl 112 1341 0 1331 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 12788 0 11310 93 0 93 93 0 8 0 ffsino 272 12788 0 11310 99 0 99 99 0 8 0 nchpl 144 24085 0 22435 63 0 63 63 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 82866 0 82866 7 6 1 2 0 8 1 percpumem 16 141 0 98 1 0 1 1 0 8 0 vcpupl 2048 64 0 0 8 0 8 8 0 8 0 vmpool 696 75 0 11 6 0 6 6 0 8 0 kstatmem 264 218 0 196 2 0 2 2 0 8 0 scxspl 216 67434 0 67434 25 23 2 8 1 8 2 plimitpl 152 724 0 707 1 0 1 1 0 8 0 sigapl 424 8778 0 8733 11 4 7 9 0 8 0 futexpl 64 66728 0 66728 2 1 1 1 0 8 1 knotepl 120 361 0 0 10 1 9 9 0 8 0 kqueuepl 216 1053 0 1045 9 8 1 5 0 8 0 pipepl 320 1952 0 1921 69 60 9 13 0 8 5 fdescpl 496 8738 0 8713 5 0 5 5 0 8 0 filepl 152 60529 0 60273 137 121 16 23 0 8 3 lockfpl 104 3834 0 3832 5 4 1 2 0 8 0 lockfspl 48 1214 0 1212 1 0 1 1 0 8 0 sessionpl 144 44 0 26 1 0 1 1 0 8 0 pgrppl 48 193 0 175 1 0 1 1 0 8 0 ucredpl 104 10397 0 10384 1 0 1 1 0 8 0 zombiepl 144 10268 0 10267 4 3 1 1 0 8 0 processpl 1072 8778 0 8733 5 1 4 5 0 8 0 procpl 680 24137 0 24075 13 5 8 10 0 8 0 srpgc 96 24 0 24 10 9 1 1 0 8 1 sosppl 168 66 0 66 11 10 1 1 0 8 1 sockpl 488 20560 0 20524 461 447 14 35 0 8 8 mcl64k 65536 25 0 0 4 1 3 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 18 0 0 3 1 2 3 0 8 0 mcl4k 4096 33 0 0 4 1 3 3 0 8 0 mcl2k2 2112 10 0 0 1 0 1 1 0 8 0 mcl2k 2048 328 0 0 32 11 21 32 0 8 0 mtagpl 96 187 0 0 4 1 3 4 0 8 0 mbufpl 256 1333 0 0 60 0 60 60 0 8 0 bufpl 288 16186 0 9864 452 0 452 452 0 8 0 anonpl 24 948587 0 934216 170 67 103 118 0 186 0 amapchunkpl 152 270700 0 269872 80 39 41 46 0 158 0 amappl16 200 19027 0 18568 104 78 26 38 0 8 0 amappl15 192 25 0 22 2 1 1 1 0 8 0 amappl14 184 251 0 231 5 3 2 2 0 8 0 amappl13 176 16 0 16 2 2 0 1 0 8 0 amappl12 168 9711 0 9680 4 2 2 3 0 8 0 amappl11 160 59 0 45 1 0 1 1 0 8 0 amappl10 152 72 0 60 2 1 1 1 0 8 0 amappl9 144 272 0 271 1 0 1 1 0 8 0 amappl8 136 633 0 500 5 0 5 5 0 8 0 amappl7 128 260 0 232 3 1 2 3 0 8 0 amappl6 120 655 0 639 1 0 1 1 0 8 0 amappl5 112 278 0 267 1 0 1 1 0 8 0 amappl4 104 702 0 672 2 1 1 2 0 8 0 amappl3 96 52845 0 52771 10 7 3 4 0 8 0 amappl2 88 9527 0 9443 5 2 3 3 0 8 0 amappl1 80 40300 0 39729 24 10 14 23 0 8 0 amappl 88 85157 0 84921 9 1 8 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 8814 0 8724 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8814 0 8724 1 0 1 1 0 8 0 vmmpekpl 168 70355 0 70277 4 0 4 4 0 8 0 vmmpepl 168 537833 0 535461 343 213 130 145 0 357 0 vmsppl 464 8813 0 8724 14 1 13 13 0 8 0 rwobjpl 56 137951 0 130220 119 6 113 113 0 8 0 pdppl 4096 17636 0 17512 703 565 138 138 0 8 14 pvpl 32 2518724 0 2498770 447 263 184 357 0 265 0 pmappl 248 8813 0 8724 8 1 7 7 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1759 0 825 29 1 28 28 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82bafff0) 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(ffffffff82c5af50) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c5af50) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a192590,ffff800000077e80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff82c5af50) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c5af50) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82c5af50) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c5af50) at __mp_lock+0x122 sys/kern/kern_lock.c:147 reaper(ffff80002a1862a0) at reaper+0x160 sys/kern/kern_exit.c:446 end trace frame: 0x0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000f59028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000f59028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000f59018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000f59000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000f59000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff8008) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002a25faa8,0,0,1) at exit1+0x3d8 sys/kern/kern_exit.c:222 sys_exit(ffff80002a25faa8,ffff80002a2b8100,ffff80002a2b8150) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a2b81d0) at syscall+0x4e6 sys/arch/amd64/amd64/trap.c:606 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d43ea2d97c0, count: -9