witness: lock_object uninitialized: 0xffff800000ed5028 Starting stack trace... witness_checkorder(ffff800000ed5028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000ed5028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000ed5018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000ed5000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:95 [inline] unveil_delete_names(ffff800000ed5000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:105 unveil_destroy(ffff800023efe160) at unveil_destroy+0xad sys/kern/kern_unveil.c:186 exit1(ffff80002119e540,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff80002119e540,ffff80002120cc10,ffff80002120cc70) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff80002120cce0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002120cce0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7c0, 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(ffff800000ed5028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000ed5028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000ed5018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000ed5000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:95 [inline] unveil_delete_names(ffff800000ed5000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:105 unveil_destroy(ffff800023efe160) at unveil_destroy+0xad sys/kern/kern_unveil.c:186 exit1(ffff80002119e540,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff80002119e540,ffff80002120cc10,ffff80002120cc70) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff80002120cce0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002120cce0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7c0, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002120c9b0 rbx 0x3 rdx 0 rcx 0 rax 0xffff80002119e540 r8 0xffff80002120c950 r9 0x8080808080808080 r10 0x70e68b4e7f5c6cac r11 0x67e57e9d5e4eb997 r12 0xffff800000ed5001 r13 0xffff800000ed5028 r14 0 r15 0 rip 0xffffffff81057df8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002120c9a0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=261268 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff4548,0xffff8000fffead30 process=0xffff800023efe160 user=0xffff800021207000, vmspace=0xfffffd805ad60190 estcpu=36, cpticks=19, pctcpu=0.22 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 25767 351498 585 0 3 0x82 piperd syz-executor.4 27013 163250 585 0 3 0x82 piperd syz-executor.6 51648 261443 0 0 3 0x14280 nfsidl nfsio 98226 214874 0 0 3 0x14280 nfsidl nfsio 77466 69089 0 0 3 0x14280 nfsidl nfsio 4596 339450 0 0 3 0x14280 nfsidl nfsio 49189 119152 0 0 3 0x14280 nfsidl nfsio 12934 181702 0 0 3 0x14280 nfsidl nfsio 58257 216538 0 0 3 0x14280 nfsidl nfsio 20596 366509 0 0 3 0x14280 nfsidl nfsio 46174 232984 0 0 3 0x14280 nfsidl nfsio 30006 381430 0 0 3 0x14280 nfsidl nfsio 77613 405396 0 0 3 0x14280 nfsidl nfsio 29141 426478 0 0 3 0x14280 nfsidl nfsio 49507 124538 0 0 3 0x14280 nfsidl nfsio 95660 49567 0 0 3 0x14280 nfsidl nfsio 23373 248615 0 0 3 0x14280 nfsidl nfsio 76009 221357 0 0 3 0x14280 nfsidl nfsio 62483 167608 0 0 3 0x14280 nfsidl nfsio 37720 269787 0 0 3 0x14280 nfsidl nfsio 67140 31288 0 0 3 0x14280 nfsidl nfsio 91510 475680 0 0 3 0x14280 nfsidl nfsio 79706 442664 1 0 2 0x100083 getty 65752 52222 585 0 3 0x82 piperd syz-executor.2 87091 62331 585 0 3 0x82 piperd syz-executor.3 90892 83343 585 0 2 0x2 syz-executor.1 33186 371842 585 0 2 0x482 syz-executor.0 21838 442091 585 0 3 0x82 piperd syz-executor.7 69768 375993 585 0 2 0x482 syz-executor.5 60716 180550 0 0 3 0x14200 bored sosplice 585 483994 16433 0 3 0x82 thrsleep syz-fuzzer 585 432479 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 82042 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 421291 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 11451 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 241243 16433 0 3 0x4000082 kqread syz-fuzzer 585 169975 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 180317 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 70056 16433 0 3 0x4000082 thrsleep syz-fuzzer 585 451003 16433 0 3 0x4000082 thrsleep syz-fuzzer 16433 345519 43597 0 3 0x10008a sigsusp ksh 43597 260680 21619 0 3 0x9a kqread sshd 21619 433988 1 0 3 0x88 kqread sshd 32746 93489 90854 74 3 0x1100092 bpf pflogd 90854 193560 1 0 3 0x80 netio pflogd 7696 217315 35903 73 2 0x1100090 syslogd 35903 197746 1 0 3 0x100082 netio syslogd 7581 186158 1 0 3 0x100080 kqread resolvd 10453 470178 19167 77 3 0x100092 kqread dhcpleased 91815 205158 19167 77 3 0x100092 kqread dhcpleased 19167 463695 1 0 3 0x80 kqread dhcpleased 37252 189118 0 0 3 0x14200 bored smr 58907 168518 0 0 2 0x14200 zerothread 142 253723 0 0 3 0x14200 aiodoned aiodoned 96777 346066 0 0 3 0x14200 syncer update 86324 344643 0 0 3 0x14200 cleaner cleaner 30400 346147 0 0 2 0x14200 reaper 95632 218769 0 0 3 0x14200 pgdaemon pagedaemon 60155 59060 0 0 3 0x14200 bored viomb 71402 419086 0 0 3 0x40014200 acpi0 acpi0 48111 367372 0 0 7 0x40014200 idle1 46359 48577 0 0 3 0x14200 bored softnet 85472 212571 0 0 3 0x14200 bored systqmp 22533 212623 0 0 3 0x14200 bored systq 34473 53550 0 0 3 0x40014200 bored softclock 11093 31220 0 0 3 0x40014200 idle0 1 374044 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 90892 (syz-executor.1) thread 0xffff80002e38d7a0 (83343) exclusive rrwlock inode r = 0 (0xfffffd805e8cbd60) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vget+0x1d3 sys/kern/vfs_subr.c:677 #6 ufs_ihashget+0x121 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x7c sys/ufs/ffs/ffs_vfsops.c:1318 #8 ufs_lookup+0x13ba sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x58 sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x6e5 sys/kern/vfs_lookup.c:561 #11 namei+0x36a sys/kern/vfs_lookup.c:245 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850 #13 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80667d4a28) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1850 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 30400 (reaper) thread 0xffff8000210f9500 (346147) exclusive rwlock kmmaplk r = 0 (0xffffffff829d69c8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvm_unmap+0x78 sys/uvm/uvm_map.c:2068 #4 uvm_uarea_free+0x35 sys/uvm/uvm_glue.c:288 #5 reaper+0x158 sys/kern/kern_exit.c:446 #6 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10233 6520K 7103K 78643K 36894 0 pcb 13 18K 23K 78643K 2348 0 rtable 204 10K 11K 78643K 4761 0 ifaddr 93 21K 23K 78643K 1308 0 sysctl 2 0K 0K 78643K 2 0 counters 56 35K 36K 78643K 452 0 ioctlops 0 0K 6K 78643K 5835 0 iov 0 0K 16K 78643K 1390 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1403 88K 88K 78643K 10115 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 4 9K 13K 78643K 191 0 VM map 2 1K 1K 78643K 2 0 sem 21 10K 20K 78643K 434 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 11 37K 89K 78643K 18214 0 sigio 0 0K 0K 78643K 147 0 proc 83 112K 124K 78643K 3497 0 subproc 104 6K 6K 78643K 1059 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 689 0 in_multi 67 4K 7K 78643K 1797 0 ether_multi 1 0K 0K 78643K 143 0 mrt 2 0K 0K 78643K 61 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 313 1394K 1394K 78643K 313 0 exec 0 0K 2K 78643K 5347 0 pfkey data 0 0K 0K 78643K 3 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 643 1424K 1433K 78643K 226308 0 UVM aobj 131 4K 4K 78643K 140 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 795 0 NDP 14 0K 2K 78643K 467 0 temp 145 4715K 70508K 78643K 244491 0 kqueue 12 18K 28K 78643K 1031 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 1225 0 1222 16 15 1 5 0 8 0 rtentry 112 1781 0 1696 4 1 3 4 0 8 0 unpcb 136 14818 0 14803 149 148 1 9 0 8 0 syncache 296 33 0 33 9 9 0 1 0 8 0 tcpqe 32 69 0 69 4 4 0 1 0 8 0 tcpcb 736 5689 0 5685 186 185 1 14 0 8 0 arp 120 253 0 236 1 0 1 1 0 8 0 inpcb 312 15093 0 15086 230 228 2 11 0 8 1 rttmr 72 8 0 8 2 2 0 1 0 8 0 nd6 48 336 0 321 1 0 1 1 0 8 0 pkpcb 40 60 0 60 11 11 0 1 0 8 0 kcovpl 48 79 0 71 1 0 1 1 0 8 0 ppxss 1248 61 0 61 13 13 0 1 0 8 0 pfstscr 40 74 0 74 3 3 0 1 0 8 0 pffrag 232 102 0 100 7 6 1 1 0 482 0 pffrnode 88 102 0 100 7 6 1 1 0 8 0 pffrent 40 366 0 364 8 7 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 pfrke_plain 168 4 0 4 2 2 0 1 0 8 0 pfrktable 1344 28 0 23 2 1 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfqueue 264 4 0 4 1 1 0 1 0 8 0 pfstitem 24 35 0 33 1 0 1 1 0 8 0 pfstkey 112 181 0 179 1 0 1 1 0 8 0 pfstate 320 109 0 107 3 2 1 3 0 8 0 pfrule 1360 155 0 140 4 2 2 3 0 8 0 art_heap8 4096 39 0 38 5 4 1 3 0 8 0 art_heap4 256 7122 0 6800 42 18 24 29 0 8 0 art_table 32 7161 0 6838 5 1 4 4 0 8 0 art_node 16 1778 0 1704 1 0 1 1 0 8 0 semapl 112 424 0 405 1 0 1 1 0 8 0 shmpl 112 137 0 9 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 24232 0 22736 94 0 94 94 0 8 0 ffsino 272 24232 0 22736 101 0 101 101 0 8 0 nchpl 144 48451 0 46823 63 1 62 63 0 8 0 rtmask 32 8 0 8 2 2 0 1 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 190949 0 190949 22 21 1 6 0 8 1 percpumem 16 238 0 198 1 0 1 1 0 8 0 vcpupl 2048 351 0 0 44 0 44 44 0 8 0 vmpool 560 418 0 67 26 0 26 26 0 8 0 pfiaddrpl 120 15 0 8 2 1 1 1 0 8 0 scsiplug 72 11 0 11 4 4 0 1 0 8 0 scxspl 216 140936 0 140936 19 18 1 3 0 8 1 plimitpl 152 2313 0 2297 1 0 1 1 0 8 0 sigapl 424 18434 0 18374 11 3 8 8 0 8 0 futexpl 64 176273 0 176273 6 5 1 1 0 8 1 knotepl 120 1134 0 0 10 0 10 10 0 8 0 kqueuepl 216 3599 0 3591 72 71 1 8 0 8 0 pipepl 336 3568 0 3540 74 71 3 13 0 8 0 fdescpl 496 18370 0 18346 8 4 4 5 0 8 0 filepl 152 133105 0 132865 194 182 12 24 0 8 0 lockfpl 104 6031 0 6029 13 12 1 2 0 8 0 lockfspl 48 1488 0 1486 1 0 1 1 0 8 0 sessionpl 144 97 0 80 1 0 1 1 0 8 0 pgrppl 48 133 0 116 1 0 1 1 0 8 0 ucredpl 96 16033 0 16018 1 0 1 1 0 8 0 zombiepl 144 22304 0 22302 3 2 1 1 0 8 0 processpl 1064 18434 0 18374 5 0 5 5 0 8 0 procpl 672 47814 0 47744 14 6 8 8 0 8 0 srpgc 96 94 0 94 18 17 1 1 0 8 1 sosppl 168 92 0 92 24 24 0 1 0 8 0 sockpl 480 31324 0 31299 687 681 6 34 0 8 2 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 279 0 0 20 0 20 20 0 8 0 mtagpl 96 1130 0 0 15 0 15 15 0 8 0 mbufpl 256 1672 0 0 86 0 86 86 0 8 0 bufpl 288 30345 0 24009 453 0 453 453 0 8 0 anonpl 24 5173428 0 5152535 375 216 159 172 0 186 0 amapchunkpl 152 553528 0 552531 124 78 46 54 0 158 0 amappl16 200 48764 0 47997 214 171 43 54 0 8 0 amappl15 192 3268 0 3264 1 0 1 1 0 8 0 amappl14 184 3359 0 3344 1 0 1 1 0 8 0 amappl13 176 1967 0 1964 1 0 1 1 0 8 0 amappl12 168 5034 0 5026 1 0 1 1 0 8 0 amappl11 160 1351 0 1336 1 0 1 1 0 8 0 amappl10 152 1192 0 1185 1 0 1 1 0 8 0 amappl9 144 2204 0 2199 1 0 1 1 0 8 0 amappl8 136 5082 0 4917 6 0 6 6 0 8 0 amappl7 128 3066 0 3050 1 0 1 1 0 8 0 amappl6 120 2189 0 2163 2 1 1 2 0 8 0 amappl5 112 14243 0 14224 1 0 1 1 0 8 0 amappl4 104 6782 0 6746 8 6 2 2 0 8 0 amappl3 96 7530 0 7516 1 0 1 1 0 8 0 amappl2 88 4598 0 4543 3 1 2 3 0 8 0 amappl1 80 331009 0 330471 25 11 14 19 0 8 0 amappl 88 224135 0 223779 11 1 10 10 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 72 139 0 9 3 0 3 3 0 8 0 uaddrrnd 24 18788 0 18412 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 18788 0 18412 3 0 3 3 0 8 0 vmmpekpl 168 125589 0 125484 5 0 5 5 0 8 0 vmmpepl 168 1683979 0 1680735 522 335 187 202 0 357 25 vmsppl 368 18787 0 18412 36 1 35 35 0 8 0 rwobjpl 56 401051 0 393022 151 35 116 118 0 8 0 pdppl 4096 37583 0 37175 1174 754 420 422 0 8 12 pvpl 32 8558653 0 8535056 648 415 233 265 0 265 0 pmappl 248 18787 0 18412 25 1 24 24 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 2581 0 1286 38 0 38 38 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(ffff800000ed5028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000ed5028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000ed5018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000ed5000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:95 [inline] unveil_delete_names(ffff800000ed5000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:105 unveil_destroy(ffff800023efe160) at unveil_destroy+0xad sys/kern/kern_unveil.c:186 exit1(ffff80002119e540,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff80002119e540,ffff80002120cc10,ffff80002120cc70) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff80002120cce0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002120cce0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb7c0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020ce8ff0) 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(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178 end trace frame: 0x0, count: -5