login: witness: lock_object uninitialized: 0xffff800001580030 Starting stack trace... witness_checkorder(ffff800001580030,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff800001580030,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_do_enter_write(ffff800001580018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff800001580000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003b0c0238) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c4ef748,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c4ef748,ffff80002ec9a6c0,ffff80002ec9a610) at sys_exit+0x1a syscall(ffff80002ec9a6c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ec9a6c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x727265b4e000, count: 249 End of stack trace. Stopped at db_enter+0x25: 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+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800001580030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff800001580018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff800001580000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003b0c0238) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c4ef748,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c4ef748,ffff80002ec9a6c0,ffff80002ec9a610) at sys_exit+0x1a syscall(ffff80002ec9a6c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ec9a6c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x727265b4e000, count: -9 ddb{0}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff80002ec9a350 rbx 0 rdx 0 rcx 0xffff80003c4ef748 rax 0xffffffff83851ff0 cpu_info_full_primary+0x1ff0 r8 0xffff80002ec9a2f0 r9 0x8080808080808080 r10 0xffff80002ec9a240 r11 0xef73d084dce91e41 r12 0 r13 0x1 r14 0xffff800001580030 r15 0x3 rip 0xffffffff81441685 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002ec9a340 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=476179 pid=85475 tcnt=0 stat=onproc flags process=1018 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c4ef748 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a3654a8,0xffff80002a364d08 process=0xffff80003b0c0238 user=0xffff80002ec95000, vmspace=0xfffffd8068105ad8 estcpu=36, cpticks=11, pctcpu=0.8, user=0, sys=8, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30457 239066 7358 0 2 0 syz-executor 30457 401252 7358 0 3 0x4000080 fsleep syz-executor 30457 16941 7358 0 2 0x4000000 syz-executor 40367 232724 59961 0 2 0 syz-executor 40367 241339 59961 0 2 0x4000000 syz-executor 7059 340464 15177 0 2 0 syz-executor 7059 499044 15177 0 3 0x4000080 fsleep syz-executor 7059 25967 15177 0 3 0x4000080 fsleep syz-executor 79263 492884 67261 0 2 0 syz-executor 79263 146695 67261 0 2 0x4000000 syz-executor 79263 36013 67261 0 3 0x4000080 fsleep syz-executor 79263 517565 67261 0 2 0x4000000 syz-executor 14401 302895 1 0 2 0x100083 getty 59961 316549 99742 0 2 0x482 syz-executor 20277 241643 99742 0 2 0x2 syz-executor 15229 17865 0 0 3 0x14280 nfsidl nfsio 59736 188433 0 0 3 0x14280 nfsidl nfsio 87790 338213 0 0 3 0x14280 nfsidl nfsio 44528 101681 0 0 3 0x14280 nfsidl nfsio 64309 26346 0 0 3 0x14280 nfsidl nfsio 34257 290897 0 0 3 0x14280 nfsidl nfsio 94260 130590 0 0 3 0x14280 nfsidl nfsio 11253 39095 0 0 3 0x14280 nfsidl nfsio 56501 47379 0 0 3 0x14280 nfsidl nfsio 22043 473487 0 0 3 0x14280 nfsidl nfsio 36564 167623 0 0 3 0x14280 nfsidl nfsio 57927 264478 0 0 3 0x14280 nfsidl nfsio 36577 364581 0 0 3 0x14280 nfsidl nfsio 47615 255387 0 0 3 0x14280 nfsidl nfsio 94716 16683 0 0 3 0x14280 nfsidl nfsio 18630 205832 0 0 3 0x14280 nfsidl nfsio 80238 355177 0 0 3 0x14280 nfsidl nfsio 43067 111952 0 0 3 0x14280 nfsidl nfsio 97776 493861 0 0 3 0x14280 nfsidl nfsio 31391 383369 0 0 3 0x14280 nfsidl nfsio 81518 397137 0 0 3 0x14200 bored sosplice 67261 181214 99742 0 2 0x482 syz-executor 21934 390955 99742 0 2 0x2 syz-executor 73934 307612 99742 0 2 0x482 syz-executor 7358 312677 99742 0 2 0x482 syz-executor 26361 106397 99742 0 2 0x482 syz-executor 15177 504328 99742 0 2 0x482 syz-executor 99742 286500 7955 0 3 0x82 kqread syz-executor 7955 265325 55641 0 3 0x10008a sigsusp ksh 55641 342207 85238 0 3 0x98 kqread sshd-session 85238 355646 19263 0 3 0x92 kqread sshd-session 19263 3594 1 0 3 0x88 kqread sshd 37404 30649 48127 74 3 0x1100092 bpf pflogd 48127 220181 1 0 3 0x80 sbwait pflogd 39912 472130 34321 73 2 0x1100090 syslogd 34321 451018 1 0 3 0x100082 sbwait syslogd 28232 305031 1 0 3 0x100080 kqread resolvd 10797 122794 5565 77 3 0x100092 kqread dhcpleased 49719 215544 5565 77 3 0x100092 kqread dhcpleased 5565 42676 1 0 3 0x80 kqread dhcpleased 38374 215008 0 0 3 0x14200 bored smr 7426 290026 0 0 2 0x14200 zerothread 37118 244952 0 0 3 0x14200 aiodoned aiodoned 25207 431890 0 0 3 0x14200 syncer update 42391 520262 0 0 3 0x14200 cleaner cleaner 62181 172403 0 0 2 0x14200 reaper 32737 52126 0 0 3 0x14200 pgdaemon pagedaemon 50375 309022 0 0 3 0x14200 bored viomb 52671 15531 0 0 3 0x40014200 acpi0 acpi0 70909 487701 0 0 7 0x40014200 idle1 28634 500282 0 0 3 0x14200 bored softnet3 76317 84090 0 0 3 0x14200 bored softnet2 12558 93033 0 0 3 0x14200 bored softnet1 49371 249924 0 0 2 0x14200 softnet0 23806 180403 0 0 3 0x14200 bored systqmp 94345 203061 0 0 3 0x14200 bored systq 43370 335365 0 0 2 0x14200 softclockmp 4401 28722 0 0 2 0x40014200 softclock 73847 261661 0 0 3 0x40014200 idle0 1 37844 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 79263 (syz-executor) thread 0xffff80002a364a68 (146695) exclusive rwlock vmmaplk r = 0 (0xfffffd8068105128) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_map_protect+0xe1 sys/uvm/uvm_map.c:3057 #4 sys_mprotect+0x34c sys/uvm/uvm_mmap.c:590 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 20277 (syz-executor) thread 0xffff80003c4ee558 (241643) exclusive rrwlock inode r = 0 (0xfffffd806bd88f18) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3087 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 21934 (syz-executor) thread 0xffff8000ffffd1f8 (390955) exclusive rrwlock inode r = 0 (0xfffffd806bd88428) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 sys_getdents+0x264 #6 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 62181 (reaper) thread 0xffff8000ffffd488 (172403) exclusive rwlock kmmaplk r = 0 (0xffffffff838cfdb0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:833 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:284 #6 reaper+0x1fe sys/kern/kern_exit.c:466 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 11047K 11378K 166960K 12953 0 pcb 19 15K 16K 166960K 325 0 rtable 205 8K 8K 166960K 599 0 pf 32 17K 25K 166960K 150 0 ifaddr 38 6K 8K 166960K 97 0 ifgroup 51 2K 2K 166960K 143 0 sysctl 4 1K 3K 166960K 8 0 counters 62 36K 36K 166960K 128 0 ioctlops 0 0K 4K 166960K 1712 0 iov 0 0K 24K 166960K 152 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1400 88K 89K 166960K 2433 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 28 73K 78K 166960K 58 0 dirhash 12 2K 2K 166960K 51 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 1644 0 sigio 0 0K 0K 166960K 94 0 proc 79 127K 152K 166960K 829 0 subproc 72 4K 4K 166960K 101 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 316 0 in_multi 78 5K 7K 166960K 209 0 ether_multi 1 0K 0K 166960K 11 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 676 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 224 72K 87K 166960K 17854 0 UVM aobj 120 8K 8K 166960K 124 0 pinsyscall 41 82K 104K 166960K 2853 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 89 0 NDP 11 0K 2K 166960K 65 0 temp 76 8644K 8772K 166960K 68655 0 kqueue 14 22K 30K 166960K 300 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 141 0 138 1 0 1 1 0 8 0 rtentry 112 182 0 93 4 0 4 4 0 8 0 unpcb 144 1051 0 1034 12 11 1 4 0 8 0 syncache 336 12 0 12 6 6 0 1 0 8 0 tcpqe 32 6 0 6 3 3 0 1 0 8 0 tcpcb 808 719 0 714 18 16 2 8 0 8 0 arp 120 32 0 14 1 0 1 1 0 8 0 inpcb 376 2068 0 2058 26 23 3 9 0 8 1 nd6 136 37 0 17 1 0 1 1 0 8 0 pkpcb 40 14 0 14 7 6 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1168 19 0 19 4 3 1 1 0 8 1 pppxif 1472 2 0 2 2 2 0 1 0 8 0 pffrag 232 14 0 12 1 0 1 1 0 482 0 pffrnode 88 12 0 10 1 0 1 1 0 8 0 pffrent 40 86 0 84 1 0 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 24 113 0 87 1 0 1 1 0 8 0 pfstkey 128 113 0 87 2 0 2 2 0 8 0 pfstate 376 113 0 87 6 0 6 6 0 8 0 pfrule 1344 22 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 751 0 415 33 10 23 29 0 8 1 art_table 32 753 0 415 4 0 4 4 0 8 0 art_node 16 177 0 100 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 7 1 0 1 1 0 8 0 semapl 112 50 0 24 1 0 1 1 0 8 0 shmpl 112 121 0 4 4 0 4 4 0 8 0 dirhash 1024 43 0 26 3 0 3 3 0 8 0 dino2pl 256 4284 0 2775 95 0 95 95 0 8 0 ffsino 280 4284 0 2775 109 0 109 109 0 8 0 nchpl 144 6662 0 4967 64 0 64 64 0 8 0 uvmvnodes 80 4976 0 0 102 0 102 102 0 8 0 vnodes 216 4976 0 0 277 0 277 277 0 8 0 namei 1024 22411 0 22410 4 3 1 3 0 8 0 percpumem 16 78 0 33 1 0 1 1 0 8 0 kstatmem 264 80 0 58 2 0 2 2 0 8 0 scsiplug 72 5 0 5 3 3 0 1 0 8 0 scxspl 216 20434 0 20434 11 10 1 8 1 8 1 plimitpl 152 492 0 473 1 0 1 1 0 8 0 sigapl 424 1969 0 1900 10 1 9 9 0 8 0 futexpl 64 22228 0 22224 1 0 1 1 0 8 0 knotepl 120 596 0 0 16 0 16 16 0 8 0 kqueuepl 216 473 0 463 2 1 1 2 0 8 0 pipepl 328 271 0 244 3 0 3 3 0 8 0 fdescpl 504 1929 0 1900 5 0 5 5 0 8 0 filepl 152 12140 0 11923 22 12 10 14 0 8 0 lockfpl 104 719 0 717 2 1 1 2 0 8 0 lockfspl 48 217 0 215 1 0 1 1 0 8 0 sessionpl 144 36 0 27 1 0 1 1 0 8 0 pgrppl 48 58 0 41 1 0 1 1 0 8 0 ucredpl 104 1896 0 1882 1 0 1 1 0 8 0 zombiepl 144 2807 0 2805 1 0 1 1 0 8 0 processpl 1168 1969 0 1900 7 1 6 6 0 8 0 procpl 656 4700 0 4622 8 0 8 8 0 8 0 srpgc 96 8 0 8 3 3 0 1 0 8 0 sosppl 168 8 0 8 2 2 0 1 0 8 0 sockpl 688 3292 0 3262 29 24 5 10 0 8 1 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 37 0 0 5 0 5 5 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 294 0 0 15 0 15 15 0 8 0 bufpl 280 5982 0 154 417 0 417 417 0 8 0 anonpl 24 257477 0 253803 135 91 44 63 0 184 13 amapchunkpl 152 57366 0 56866 46 24 22 31 0 158 1 amappl16 200 4823 0 4786 62 54 8 24 0 8 4 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 137 0 125 1 0 1 1 0 8 0 amappl13 176 26 0 26 2 2 0 1 0 8 0 amappl12 168 2627 0 2597 3 1 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 5 0 4 1 0 1 1 0 8 0 amappl9 144 271 0 271 1 1 0 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 127 0 114 1 0 1 1 0 8 0 amappl6 120 220 0 216 1 0 1 1 0 8 0 amappl5 112 151 0 141 1 0 1 1 0 8 0 amappl4 104 368 0 349 1 0 1 1 0 8 0 amappl3 96 11845 0 11734 4 0 4 4 0 8 0 amappl2 88 792 0 727 2 0 2 2 0 8 0 amappl1 80 14803 0 14239 16 1 15 16 0 8 0 amappl 88 17318 0 17149 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 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 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 123 0 4 3 0 3 3 0 8 0 uaddrrnd 24 1929 0 1899 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1929 0 1899 1 0 1 1 0 8 0 vmmpekpl 168 17865 0 17813 4 1 3 3 0 8 0 vmmpepl 168 124228 0 122398 133 41 92 100 0 357 6 vmsppl 456 1928 0 1899 7 2 5 5 0 8 0 rwobjpl 64 39731 0 33696 102 4 98 98 0 8 0 pdppl 4096 3865 0 3798 119 48 71 85 0 8 4 pvpl 32 17972 0 0 145 0 145 145 0 265 0 pmappl 248 1928 0 1899 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 339 0 90 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800001580030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff800001580018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff800001580000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003b0c0238) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff80003c4ef748,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80003c4ef748,ffff80002ec9a6c0,ffff80002ec9a610) at sys_exit+0x1a syscall(ffff80002ec9a6c0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002ec9a6c0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x727265b4e000, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029a9bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1218 sched_idle(ffff800029a9bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5