witness: lock_object uninitialized: 0xffff800000e1b028 Starting stack trace... witness_checkorder(ffff800000e1b028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e1b028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e1b018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e1b000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e1b000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002657ae30) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211d9098,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211d9098,ffff800029de9340,ffff800029de9390) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029de9410) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029de9410) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d99eb0629f0, 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(ffff800000e1b028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e1b028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e1b018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e1b000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e1b000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002657ae30) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211d9098,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211d9098,ffff800029de9340,ffff800029de9390) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029de9410) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029de9410) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d99eb0629f0, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800029de90e0 rbx 0x3 rdx 0 rcx 0xffff8000211d9098 rax 0xffff800020d58ff0 r8 0xffff800029de9080 r9 0x8080808080808080 r10 0x5eea7fb1605c5619 r11 0xd2bb07d1485360f2 r12 0xffff800000e1b001 r13 0xffff800000e1b028 r14 0 r15 0 rip 0xffffffff81a54b4c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800029de90d0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.4) pid=174074 stat=onproc flags process=1018 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000211d9b78,0xffff8000211d98d0 process=0xffff80002657ae30 user=0xffff800029de4000, vmspace=0xfffffd8008a0eae0 estcpu=36, cpticks=20, pctcpu=0.1 user=0, sys=7, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53513 18966 84883 0 2 0x100000 sh 84883 18159 38849 0 3 0x10008a sigsusp sh 89602 218094 54222 0 7 0 syz-executor.7 89602 517382 54222 0 2 0x4000080 syz-executor.7 89602 420863 54222 0 3 0x4000080 fsleep syz-executor.7 89602 289396 54222 0 3 0x4000080 fsleep syz-executor.7 26444 29471 67703 0 3 0x82 wait syz-executor.0 38849 393043 67703 0 3 0x82 wait syz-executor.2 54222 93126 67703 0 3 0x82 nanoslp syz-executor.7 15836 106877 67703 0 3 0x82 nanoslp syz-executor.4 40981 39684 67703 0 3 0x82 piperd syz-executor.6 3790 200497 67703 0 3 0x82 piperd syz-executor.3 8403 389740 67703 0 3 0x82 piperd syz-executor.1 69563 226585 67703 0 3 0x82 piperd syz-executor.5 926 362832 0 0 3 0x14280 nfsidl nfsio 47364 461292 0 0 3 0x14280 nfsidl nfsio 55688 138820 0 0 3 0x14280 nfsidl nfsio 63228 455379 0 0 3 0x14280 nfsidl nfsio 70629 163809 0 0 3 0x14280 nfsidl nfsio 15980 119491 0 0 3 0x14280 nfsidl nfsio 15073 163950 0 0 3 0x14280 nfsidl nfsio 86215 406512 0 0 3 0x14280 nfsidl nfsio 98934 274675 0 0 3 0x14280 nfsidl nfsio 21740 404710 0 0 3 0x14280 nfsidl nfsio 58342 422707 0 0 3 0x14280 nfsidl nfsio 65917 447637 0 0 3 0x14280 nfsidl nfsio 17267 441142 0 0 3 0x14280 nfsidl nfsio 46836 153823 0 0 3 0x14280 nfsidl nfsio 72005 4667 0 0 3 0x14280 nfsidl nfsio 54488 26209 0 0 3 0x14280 nfsidl nfsio 34835 460436 0 0 3 0x14280 nfsidl nfsio 98363 353556 0 0 3 0x14280 nfsidl nfsio 91567 67252 0 0 3 0x14280 nfsidl nfsio 66727 42044 0 0 3 0x14280 nfsidl nfsio 87790 149968 0 0 3 0x14200 bored sosplice 67703 9579 75168 0 3 0x2000082 wait syz-fuzzer 67703 94048 75168 0 3 0x6000082 thrsleep syz-fuzzer 67703 268312 75168 0 3 0x6000082 kqread syz-fuzzer 67703 136637 75168 0 3 0x6000082 thrsleep syz-fuzzer 67703 269460 75168 0 3 0x6000082 thrsleep syz-fuzzer 67703 185881 75168 0 3 0x6000082 thrsleep syz-fuzzer 67703 383333 75168 0 3 0x6000082 wait syz-fuzzer 67703 285252 75168 0 3 0x6000082 wait syz-fuzzer 67703 262130 75168 0 3 0x6000082 wait syz-fuzzer 67703 320470 75168 0 3 0x6000082 wait syz-fuzzer 67703 53335 75168 0 3 0x6000082 thrsleep syz-fuzzer 67703 440960 75168 0 3 0x6000082 wait syz-fuzzer 67703 84462 75168 0 3 0x6000082 wait syz-fuzzer 67703 488158 75168 0 3 0x6000082 wait syz-fuzzer 67703 70562 75168 0 3 0x6000082 thrsleep syz-fuzzer 67703 324619 75168 0 3 0x6000082 thrsleep syz-fuzzer 75168 447625 62647 0 3 0x10008a sigsusp ksh 62647 309824 19647 0 3 0x9a kqread sshd 31958 205110 1 0 3 0x100083 ttyopn getty 19647 355690 1 0 3 0x88 kqread sshd 62384 403741 52036 74 3 0x1100092 bpf pflogd 52036 410662 1 0 3 0x80 netio pflogd 8611 22698 40011 73 3 0x1100090 kqread syslogd 40011 380204 1 0 3 0x100082 netio syslogd 6951 166619 1 0 3 0x100080 kqread resolvd 64537 171562 61246 77 3 0x100092 kqread dhcpleased 20941 347071 61246 77 3 0x100092 kqread dhcpleased 61246 233616 1 0 3 0x80 kqread dhcpleased 10861 96585 0 0 3 0x14200 bored smr 37833 306238 0 0 2 0x14200 zerothread 30518 478406 0 0 3 0x14200 aiodoned aiodoned 64798 314412 0 0 3 0x14200 syncer update 33899 299785 0 0 3 0x14200 cleaner cleaner 309 84834 0 0 2 0x14200 reaper 77782 306664 0 0 3 0x14200 pgdaemon pagedaemon 65638 246663 0 0 3 0x14200 bored viomb 67501 415742 0 0 3 0x40014200 acpi0 acpi0 99015 233687 0 0 3 0x40014200 idle1 66515 417839 0 0 3 0x14200 bored softnet3 82270 382380 0 0 3 0x14200 bored softnet2 48381 497289 0 0 3 0x14200 bored softnet1 96374 188209 0 0 3 0x14200 bored softnet0 37144 468137 0 0 3 0x14200 bored systqmp 10945 493615 0 0 3 0x14200 bored systq 57249 392956 0 0 3 0x40014200 bored softclock 63355 426710 0 0 3 0x40014200 idle0 1 178844 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 309 (reaper) thread 0xffff8000211ac2c0 (84834) exclusive rwlock kmmaplk r = 0 (0xffffffff82d0cfc0) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5345 #3 uvm_unmap+0x7c sys/uvm/uvm_map.c:1855 #4 uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288 #5 reaper+0x168 sys/kern/kern_exit.c:438 #6 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10218 6498K 7635K 78643K 23027 0 pcb 13 14K 16K 78643K 516 0 rtable 203 6K 7K 78643K 1061 0 pf 35 10K 10K 78643K 233 0 ifaddr 41 15K 17K 78643K 185 0 ifgroup 60 2K 2K 78643K 329 0 sysctl 3 1K 3K 78643K 6 0 counters 62 36K 36K 78643K 244 0 ioctlops 0 0K 4K 78643K 1734 0 iov 0 0K 36K 78643K 620 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1565 98K 98K 78643K 5000 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 80 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 2669 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 85K 78643K 8288 0 sigio 0 0K 0K 78643K 187 0 proc 76 115K 127K 78643K 1293 0 subproc 104 6K 10K 78643K 365 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 577 0 in_multi 78 5K 7K 78643K 292 0 ether_multi 1 0K 0K 78643K 7 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 175 784K 784K 78643K 175 0 exec 0 0K 1K 78643K 1296 0 pfkey data 0 0K 0K 78643K 5 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 8 62K 64K 78643K 10 0 UVM amap 397 97K 102K 78643K 84989 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 123 0 NDP 17 0K 1K 78643K 146 0 temp 74 5920K 6552K 78643K 58964 0 kqueue 12 18K 26K 78643K 535 0 SYN cache 2 16K 24K 78643K 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 120 346 0 343 5 4 1 3 0 8 0 rtentry 112 306 0 213 4 0 4 4 0 8 0 unpcb 144 3388 0 3373 44 43 1 8 0 8 0 syncache 296 47 0 47 13 13 0 1 0 8 0 tcpqe 32 190 0 190 7 7 0 1 0 8 0 tcpcb 808 2011 0 1999 91 89 2 8 0 8 0 arp 120 47 0 32 1 0 1 1 0 8 0 inpcb 368 4237 0 4222 106 98 8 10 0 8 6 nd6 136 72 0 52 2 0 2 2 0 8 0 pkpcb 40 73 0 73 4 4 0 1 0 8 0 kcovpl 48 23 0 15 1 0 1 1 0 8 0 ppxss 1256 50 0 50 14 14 0 1 0 8 0 pffrag 232 86 0 81 3 2 1 1 0 482 0 pffrnode 88 86 0 81 3 2 1 1 0 8 0 pffrent 40 349 0 344 3 2 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 24 202 0 177 1 0 1 1 0 8 0 pfstkey 128 204 0 179 1 0 1 1 0 8 0 pfstate 376 204 0 179 5 2 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 1093 0 710 34 3 31 31 0 8 6 art_table 32 1094 0 710 4 0 4 4 0 8 0 art_node 16 267 0 182 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 5 1 0 1 1 0 8 0 semapl 112 2667 0 2657 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 12052 0 10576 93 0 93 93 0 8 0 ffsino 272 12052 0 10576 99 0 99 99 0 8 0 nchpl 144 23159 0 22607 63 40 23 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 80803 0 80803 7 4 3 3 0 8 3 percpumem 16 135 0 91 1 0 1 1 0 8 0 kstatmem 264 208 0 182 3 1 2 3 0 8 0 scxspl 216 64872 0 64872 17 16 1 8 1 8 1 plimitpl 152 558 0 542 1 0 1 1 0 8 0 sigapl 424 8605 0 8539 9 1 8 8 0 8 0 futexpl 64 74766 0 74764 1 0 1 1 0 8 0 knotepl 120 627 0 0 13 2 11 12 0 8 0 kqueuepl 216 1148 0 1140 26 25 1 8 0 8 0 pipepl 320 2149 0 2120 81 76 5 9 0 8 2 fdescpl 496 8561 0 8535 5 1 4 5 0 8 0 filepl 152 51894 0 51650 130 114 16 20 0 8 6 lockfpl 104 2177 0 2175 3 2 1 2 0 8 0 lockfspl 48 853 0 851 1 0 1 1 0 8 0 sessionpl 144 39 0 22 1 0 1 1 0 8 0 pgrppl 48 213 0 196 1 0 1 1 0 8 0 ucredpl 104 5148 0 5132 1 0 1 1 0 8 0 zombiepl 144 11454 0 11452 1 0 1 1 0 8 0 processpl 1072 8605 0 8539 5 0 5 5 0 8 0 procpl 696 23769 0 23684 32 22 10 11 0 8 1 sosppl 168 104 0 101 12 11 1 1 0 8 0 sockpl 488 8101 0 8068 242 229 13 29 0 8 8 mcl64k 65536 31 0 0 4 2 2 3 0 8 0 mcl16k 16384 35 0 0 5 3 2 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 17 0 0 2 0 2 2 0 8 0 mcl8k 8192 26 0 0 3 0 3 3 0 8 0 mcl4k 4096 33 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 331 0 0 37 7 30 37 0 8 0 mtagpl 96 719 0 0 15 0 15 15 0 8 0 mbufpl 256 1122 0 0 51 0 51 51 0 8 0 bufpl 288 16325 0 9996 453 0 453 453 0 8 0 anonpl 24 879284 0 867997 144 50 94 105 0 186 5 amapchunkpl 152 266702 0 265899 74 35 39 42 0 158 3 amappl16 200 17234 0 16865 94 64 30 33 0 8 8 amappl15 192 30 0 28 1 0 1 1 0 8 0 amappl14 184 214 0 200 2 1 1 2 0 8 0 amappl13 176 4 0 4 2 2 0 1 0 8 0 amappl12 168 9440 0 9409 3 1 2 2 0 8 0 amappl11 160 105 0 90 1 0 1 1 0 8 0 amappl10 152 57 0 42 1 0 1 1 0 8 0 amappl9 144 238 0 238 12 11 1 1 0 8 1 amappl8 136 565 0 437 5 0 5 5 0 8 0 amappl7 128 127 0 113 1 0 1 1 0 8 0 amappl6 120 420 0 396 3 2 1 3 0 8 0 amappl5 112 370 0 359 1 0 1 1 0 8 0 amappl4 104 820 0 781 3 1 2 3 0 8 0 amappl3 96 52712 0 52640 5 2 3 3 0 8 0 amappl2 88 9081 0 9009 3 1 2 3 0 8 0 amappl1 80 39512 0 38949 23 10 13 23 0 8 0 amappl 88 84153 0 83916 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 72 133 0 3 3 0 3 3 0 8 0 uaddrrnd 24 8561 0 8533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 8561 0 8533 1 0 1 1 0 8 0 vmmpekpl 168 71018 0 70944 5 0 5 5 0 8 0 vmmpepl 168 522272 0 520010 292 147 145 145 0 357 25 vmsppl 464 8560 0 8533 5 1 4 5 0 8 0 rwobjpl 56 134955 0 127357 118 7 111 111 0 8 2 pdppl 4096 17130 0 17066 674 606 68 80 0 8 4 pvpl 32 2368144 0 2351036 435 265 170 368 0 265 0 pmappl 248 8560 0 8533 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1681 0 828 25 0 25 25 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82c01ff0) 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(ffffffff82cb5dd0) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x129 sys/kern/kern_lock.c:147 intr_handler(ffff800022cff040,ffff800000069c00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cb5dd0) at __mp_lock+0x133 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7a55691b3dc0, count: -10 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(ffff800000e1b028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e1b028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e1b018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e1b000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e1b000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002657ae30) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211d9098,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211d9098,ffff800029de9340,ffff800029de9390) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff800029de9410) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff800029de9410) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d99eb0629f0, count: -9