witness: lock_object uninitialized: 0xffff800000f10028 Starting stack trace... witness_checkorder(ffff800000f10028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000f10028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000f10018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000f10000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000f10000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f3a40) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021267a40,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021267a40,ffff800025588fd0,ffff800025589030) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000255890a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000255890a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0fb0, 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(ffff800000f10028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000f10028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000f10018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000f10000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000f10000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f3a40) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021267a40,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021267a40,ffff800025588fd0,ffff800025589030) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000255890a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000255890a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0fb0, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800025588d70 rbx 0x3 rdx 0 rcx 0 rax 0xffff800021267a40 r8 0xffff800025588d10 r9 0x8080808080808080 r10 0x14e7d6bd54a315a2 r11 0x9801ad5a9b7c8813 r12 0xffff800000f10001 r13 0xffff800000f10028 r14 0 r15 0 rip 0xffffffff81410c88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800025588d60 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.2) pid=313773 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=85, nice=20 forw=0xffffffffffffffff, list=0xffff800021267500,0xffff8000212667f0 process=0xffff8000211f3a40 user=0xffff800025584000, vmspace=0xfffffd806077ba40 estcpu=35, cpticks=13, pctcpu=0.5 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85158 266365 54088 0 2 0 syz-executor.3 85158 392723 54088 0 3 0x4000080 fsleep syz-executor.3 71682 267832 54190 0 2 0 syz-executor.0 71682 347056 54190 0 3 0x4000080 fsleep syz-executor.0 45975 73762 63515 0 2 0x480 syz-executor.1 45975 290395 63515 0 3 0x4000080 lockf syz-executor.1 45975 446145 63515 0 3 0x4000080 lockf syz-executor.1 45975 265119 63515 0 3 0x4000080 fsleep syz-executor.1 45975 266015 63515 0 3 0x4000080 fsleep syz-executor.1 54088 51261 42738 0 2 0x482 syz-executor.3 54190 140741 42738 0 2 0x482 syz-executor.0 63515 177505 42738 0 2 0x482 syz-executor.1 77171 77900 42738 0 2 0x482 syz-executor.2 149 228298 0 0 3 0x14200 acct acct 52160 187039 0 0 3 0x14280 nfsidl nfsio 53255 29182 0 0 3 0x14280 nfsidl nfsio 70286 280677 0 0 3 0x14280 nfsidl nfsio 73722 310893 0 0 3 0x14280 nfsidl nfsio 69519 239715 0 0 3 0x14280 nfsidl nfsio 25504 479357 0 0 3 0x14280 nfsidl nfsio 61110 511005 0 0 3 0x14280 nfsidl nfsio 40965 286131 0 0 3 0x14280 nfsidl nfsio 5526 31447 0 0 3 0x14280 nfsidl nfsio 61262 46334 0 0 3 0x14280 nfsidl nfsio 13242 245131 0 0 3 0x14280 nfsidl nfsio 96116 218165 0 0 3 0x14280 nfsidl nfsio 15262 126531 0 0 3 0x14280 nfsidl nfsio 14129 103194 0 0 3 0x14280 nfsidl nfsio 53568 440100 0 0 3 0x14280 nfsidl nfsio 20506 494724 0 0 3 0x14280 nfsidl nfsio 48506 375544 0 0 3 0x14280 nfsidl nfsio 31515 313170 0 0 3 0x14280 nfsidl nfsio 89731 452295 0 0 3 0x14280 nfsidl nfsio 65819 59453 0 0 3 0x14280 nfsidl nfsio 10469 89908 0 0 3 0x14200 bored sosplice 42738 260023 49464 0 3 0x82 thrsleep syz-fuzzer 42738 168283 49464 0 2 0x4000482 syz-fuzzer 42738 195511 49464 0 3 0x4000082 thrsleep syz-fuzzer 42738 337645 49464 0 3 0x4000082 thrsleep syz-fuzzer 42738 348123 49464 0 3 0x4000082 thrsleep syz-fuzzer 42738 414648 49464 0 3 0x4000082 kqread syz-fuzzer 42738 219812 49464 0 3 0x4000082 thrsleep syz-fuzzer 42738 45435 49464 0 3 0x4000082 thrsleep syz-fuzzer 49464 72732 17095 0 3 0x10008a sigsusp ksh 17095 403050 92194 0 3 0x9a poll sshd 52963 421580 1 0 2 0x100083 getty 92194 246260 1 0 3 0x88 poll sshd 9681 299259 89005 74 3 0x100092 bpf pflogd 89005 484116 1 0 3 0x80 netio pflogd 38804 156681 73947 73 2 0x100090 syslogd 73947 388950 1 0 3 0x100082 netio syslogd 75612 484547 1 0 3 0x100080 kqread resolvd 84129 514605 33487 77 3 0x100092 kqread dhcpleased 63859 186206 33487 77 3 0x100092 kqread dhcpleased 33487 399956 1 0 3 0x80 kqread dhcpleased 48838 381006 0 0 3 0x14200 bored smr 60118 339470 0 0 2 0x14200 zerothread 52740 27537 0 0 3 0x14200 aiodoned aiodoned 76103 332944 0 0 3 0x14200 syncer update 64250 216554 0 0 3 0x14200 cleaner cleaner 34548 398876 0 0 2 0x14200 reaper 90887 232629 0 0 3 0x14200 pgdaemon pagedaemon 66406 129322 0 0 3 0x14200 bored viomb 37104 248384 0 0 3 0x40014200 acpi0 acpi0 86462 216630 0 0 7 0x40014200 idle1 48962 171529 0 0 3 0x14200 bored softnet 86136 131747 0 0 3 0x14200 bored systqmp 94849 363738 0 0 3 0x14200 bored systq 47782 363379 0 0 2 0x40014200 softclock 65620 215251 0 0 3 0x40014200 idle0 1 359902 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 34548 (reaper) thread 0xffff800021148fc0 (398876) exclusive rwlock kmmaplk r = 0 (0xffffffff8298b1a0) #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:287 #5 reaper+0x158 sys/kern/kern_exit.c:451 #6 proc_trampoline+0x1c ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10192 6489K 8069K 78643K 36544 0 pcb 13 18K 20K 78643K 5671 0 rtable 133 14K 18K 78643K 5904 0 ifaddr 103 28K 32K 78643K 1392 0 sysctl 3 1K 1K 78643K 3 0 counters 46 34K 35K 78643K 460 0 ioctlops 0 0K 12K 78643K 16648 0 iov 0 0K 16K 78643K 1820 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1573 99K 99K 78643K 9565 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 166 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 4948 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 9 29K 49K 78643K 26529 0 sigio 0 0K 0K 78643K 377 0 proc 74 111K 111K 78643K 1890 0 subproc 52 3K 3K 78643K 482 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 900 0 in_multi 26 1K 3K 78643K 981 0 ether_multi 1 0K 0K 78643K 215 0 mrt 1 0K 0K 78643K 347 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 205 917K 917K 78643K 205 0 exec 0 0K 2K 78643K 4275 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 535 1000K 1002K 78643K 336356 0 UVM aobj 131 4K 4K 78643K 137 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 3707 0 NDP 8 0K 0K 78643K 329 0 temp 121 4244K 8340K 78643K 136884 0 kqueue 10 14K 22K 78643K 525 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 120 952 0 949 14 13 1 3 0 8 0 rtentry 112 1952 0 1920 2 0 2 2 0 8 0 unpcb 136 11580 0 11563 126 124 2 8 0 8 1 syncache 296 62 0 62 8 8 0 1 0 8 0 tcpqe 32 151 0 151 8 8 0 1 0 8 0 tcpcb 736 17653 0 17649 318 316 2 21 0 8 1 arp 120 98 0 92 1 0 1 1 0 8 0 inpcb 304 57931 0 57922 313 307 6 14 0 8 5 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 166 0 160 1 0 1 1 0 8 0 pkpcb 40 182 0 182 10 10 0 2 0 8 0 kcovpl 48 37 0 33 1 0 1 1 0 8 0 ppxss 1248 57 0 57 12 12 0 1 0 8 0 pfstscr 40 7 0 7 2 2 0 1 0 8 0 pffrag 232 324 0 323 15 14 1 1 0 482 0 pffrnode 88 324 0 323 15 14 1 1 0 8 0 pffrent 40 11929 0 11928 17 16 1 1 0 8 0 pfosfp 40 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 716 21 0 21 21 0 8 0 pfrktable 1344 290 0 269 3 1 2 3 0 8 0 pftag 88 86 0 85 3 2 1 1 0 8 0 pfstitem 24 27 0 25 1 0 1 1 0 8 0 pfstkey 112 41 0 39 1 0 1 1 0 8 0 pfstate 320 34 0 32 2 1 1 2 0 8 0 pfsrctr 152 10 0 10 1 1 0 1 0 8 0 pfrule 1360 9405 0 8827 53 4 49 49 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2872 0 2716 32 17 15 18 0 8 1 art_table 32 2873 0 2716 5 2 3 3 0 8 0 art_node 16 987 0 960 1 0 1 1 0 8 0 sysvmsgpl 40 56 0 21 1 0 1 1 0 8 0 semapl 112 4946 0 4936 1 0 1 1 0 8 0 shmpl 112 134 0 6 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 35453 0 34014 91 0 91 91 0 8 0 ffsino 272 35453 0 34014 97 0 97 97 0 8 0 nchpl 144 69715 0 68115 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 238477 0 238477 5 4 1 1 0 8 1 percpumem 16 242 0 207 1 0 1 1 0 8 0 vcpupl 2048 204 0 0 26 0 26 26 0 8 0 vmpool 560 223 0 19 15 0 15 15 0 8 0 pfiaddrpl 120 1685 0 1599 3 0 3 3 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 216741 0 216741 22 21 1 8 0 8 1 plimitpl 152 1213 0 1202 1 0 1 1 0 8 0 sigapl 424 26690 0 26631 7 0 7 7 0 8 0 futexpl 64 288131 0 288127 5 4 1 1 0 8 0 knotepl 112 170 0 0 3 0 3 3 0 8 0 kqueuepl 216 5225 0 5217 88 87 1 8 0 8 0 pipepl 336 3809 0 3793 103 101 2 7 0 8 0 fdescpl 496 26654 0 26632 5 2 3 4 0 8 0 filepl 152 198375 0 198217 259 250 9 19 0 8 1 lockfpl 104 4841 0 4835 10 9 1 4 0 8 0 lockfspl 48 1762 0 1758 2 1 1 2 0 8 0 sessionpl 144 53 0 40 1 0 1 1 0 8 0 pgrppl 48 80 0 67 1 0 1 1 0 8 0 ucredpl 96 19606 0 19589 1 0 1 1 0 8 0 zombiepl 144 36606 0 36605 2 1 1 1 0 8 0 processpl 1064 26690 0 26631 4 0 4 4 0 8 0 procpl 672 72740 0 72667 22 15 7 7 0 8 0 srpgc 96 42 0 42 11 11 0 1 0 8 0 sosppl 168 101 0 101 19 19 0 1 0 8 0 sockpl 480 71185 0 71156 862 850 12 36 0 8 7 mcl64k 65536 41 0 0 4 1 3 3 0 8 0 mcl16k 16384 20 0 0 3 0 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 26 0 0 2 1 1 2 0 8 0 mcl8k 8192 25 0 0 4 2 2 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 412 0 0 21 7 14 21 0 8 0 mtagpl 96 1014 0 0 17 6 11 11 0 8 0 mbufpl 256 14368 0 0 831 0 831 831 0 8 0 bufpl 288 44242 0 37897 454 0 454 454 0 8 0 anonpl 24 7391569 0 7371076 324 195 129 176 0 186 0 amapchunkpl 152 823051 0 822234 130 98 32 52 0 158 0 amappl16 200 63009 0 62302 170 132 38 49 0 8 0 amappl15 192 2370 0 2367 1 0 1 1 0 8 0 amappl14 184 793 0 791 4 3 1 1 0 8 0 amappl13 176 8113 0 8110 1 0 1 1 0 8 0 amappl12 168 2750 0 2747 1 0 1 1 0 8 0 amappl11 160 4572 0 4555 1 0 1 1 0 8 0 amappl10 152 1951 0 1940 1 0 1 1 0 8 0 amappl9 144 5221 0 5219 1 0 1 1 0 8 0 amappl8 136 3338 0 3234 4 0 4 4 0 8 0 amappl7 128 2170 0 2158 1 0 1 1 0 8 0 amappl6 120 5074 0 5051 1 0 1 1 0 8 0 amappl5 112 17573 0 17550 1 0 1 1 0 8 0 amappl4 104 12676 0 12648 1 0 1 1 0 8 0 amappl3 96 10425 0 10405 1 0 1 1 0 8 0 amappl2 88 9729 0 9668 2 0 2 2 0 8 0 amappl1 80 480958 0 480435 20 9 11 13 0 8 0 amappl 88 335001 0 334699 8 1 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 72 136 0 6 3 0 3 3 0 8 0 uaddrrnd 24 26877 0 26650 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 26877 0 26650 2 0 2 2 0 8 0 vmmpekpl 168 169195 0 169135 3 0 3 3 0 8 0 vmmpepl 168 2405160 0 2402290 504 376 128 154 0 357 0 vmsppl 368 26876 0 26650 21 0 21 21 0 8 0 rwobjpl 56 573321 0 565522 131 20 111 113 0 8 0 pdppl 4096 53762 0 53504 324 66 258 258 0 8 0 pvpl 32 12125141 0 12102110 627 436 191 318 0 265 0 pmappl 248 26876 0 26650 15 0 15 15 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 2397 0 520 54 0 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(ffff800000f10028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000f10028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000f10018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000f10000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000f10000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f3a40) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021267a40,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021267a40,ffff800025588fd0,ffff800025589030) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff8000255890a0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000255890a0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc0fb0, 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