witness: lock_object uninitialized: 0xffff800000d65028 Starting stack trace... witness_checkorder(ffff800000d65028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000d65028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000d65018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d65000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000d65000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002126c878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002129f338,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff80002129f338,ffff8000295b1060,ffff8000295b10b0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff8000295b1130) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295b1130) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x782dd5bb7100, count: 249 End of stack trace. Stopped at db_enter+0x1c: 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000d65028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000d65028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000d65018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d65000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000d65000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002126c878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002129f338,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff80002129f338,ffff8000295b1060,ffff8000295b10b0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff8000295b1130) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295b1130) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x782dd5bb7100, count: -9 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff8000295b0e00 rbx 0x3 rdx 0 rcx 0xffff80002129f338 rax 0xffffffff82bd4ff0 cpu_info_full_primary+0x1ff0 r8 0xffff8000295b0da0 r9 0x8080808080808080 r10 0x138f21f19968d7aa r11 0x97579fb07a31497a r12 0xffff800000d65001 r13 0xffff800000d65028 r14 0 r15 0 rip 0xffffffff8275560c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000295b0df0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.6) pid=244853 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002129fb60,0xffff80002129e868 process=0xffff80002126c878 user=0xffff8000295ac000, vmspace=0xfffffd806bbb0928 estcpu=36, cpticks=16, pctcpu=0.0 user=0, sys=8, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 29600 475769 27957 0 2 0 syz-executor.0 29600 69584 27957 0 2 0x4000000 syz-executor.0 57596 499417 97163 0 2 0 syz-executor.1 57596 513417 97163 0 3 0x4000080 msgwait syz-executor.1 57596 312855 97163 0 3 0x4000080 msgwait syz-executor.1 57596 47478 97163 0 3 0x4000080 msgwait syz-executor.1 2427 258571 89918 0 2 0x482 syz-executor.6 35708 507025 0 0 3 0x14200 bored sosplice 69200 60072 89918 0 2 0x2 syz-executor.7 68071 253027 89918 0 2 0x482 syz-executor.5 43761 21074 89918 0 2 0x482 syz-executor.3 35716 447733 89918 0 2 0x482 syz-executor.2 97163 75555 89918 0 2 0x482 syz-executor.1 27957 91009 89918 0 2 0x482 syz-executor.0 89918 164597 59682 0 3 0x2000082 wait syz-fuzzer 89918 239158 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 67977 59682 0 3 0x6000082 wait syz-fuzzer 89918 445345 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 330310 59682 0 3 0x6000082 wait syz-fuzzer 89918 20572 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 393428 59682 0 3 0x6000082 wait syz-fuzzer 89918 417774 59682 0 3 0x6000082 wait syz-fuzzer 89918 423331 59682 0 3 0x6000082 wait syz-fuzzer 89918 193911 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 355435 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 329300 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 79922 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 301681 59682 0 3 0x6000082 wait syz-fuzzer 89918 505183 59682 0 3 0x6000082 thrsleep syz-fuzzer 89918 285802 59682 0 3 0x6000082 kqread syz-fuzzer 59682 14640 27889 0 3 0x10008a sigsusp ksh 27889 30329 68543 0 3 0x9a kqread sshd 83458 516266 1 0 2 0x100083 getty 68543 306407 1 0 3 0x88 kqread sshd 89105 478676 75079 74 3 0x1100092 bpf pflogd 75079 233342 1 0 3 0x80 netio pflogd 13705 83382 34809 73 2 0x1100090 syslogd 34809 94317 1 0 3 0x100082 netio syslogd 42598 280685 1 0 3 0x100080 kqread resolvd 98689 209942 30402 77 3 0x100092 kqread dhcpleased 4341 498038 30402 77 3 0x100092 kqread dhcpleased 30402 335762 1 0 3 0x80 kqread dhcpleased 86866 86935 0 0 3 0x14200 bored smr 9768 212166 0 0 2 0x14200 zerothread 64748 21320 0 0 3 0x14200 aiodoned aiodoned 69475 31842 0 0 3 0x14200 syncer update 1641 106893 0 0 3 0x14200 cleaner cleaner 46454 514452 0 0 7 0x14200 reaper 23578 135665 0 0 3 0x14200 pgdaemon pagedaemon 90222 495019 0 0 3 0x14200 bored viomb 72805 449959 0 0 3 0x40014200 acpi0 acpi0 28247 250707 0 0 3 0x40014200 idle1 86494 40310 0 0 3 0x14200 bored softnet3 30598 430291 0 0 3 0x14200 bored softnet2 54052 165424 0 0 3 0x14200 bored softnet1 7871 61470 0 0 3 0x14200 bored softnet0 47393 354674 0 0 3 0x14200 bored systqmp 57554 291288 0 0 3 0x14200 bored systq 95639 98522 0 0 3 0x40014200 bored softclock 89115 487097 0 0 3 0x40014200 idle0 1 439751 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 69200 (syz-executor.7) thread 0xffff800021237078 (60072) exclusive rrwlock inode r = 0 (0xfffffd8067e1f1a8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064c84e78) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #9 Xsyscall+0x128 Process 46454 (reaper) thread 0xffff8000211acda0 (514452) exclusive rwlock kmmaplk r = 0 (0xffffffff82cccb10) #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{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10189 6480K 6873K 78643K 12347 0 pcb 14 8K 8K 78643K 26 0 rtable 212 6K 6K 78643K 388 0 pf 30 9K 10K 78643K 55 0 ifaddr 41 14K 15K 78643K 58 0 ifgroup 51 2K 2K 78643K 73 0 counters 58 35K 36K 78643K 72 0 ioctlops 0 0K 4K 78643K 1496 0 iov 0 0K 4K 78643K 21 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1344 84K 84K 78643K 1575 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 14 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 71 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 85K 78643K 650 0 proc 72 115K 115K 78643K 577 0 subproc 91 5K 6K 78643K 117 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 88 6K 7K 78643K 110 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 507 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 335 76K 85K 78643K 8765 0 UVM aobj 29 4K 4K 78643K 29 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 2 0K 0K 78643K 17 0 NDP 11 0K 1K 78643K 36 0 temp 43 5912K 5984K 78643K 8001 0 kqueue 12 18K 20K 78643K 40 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 75 0 72 2 1 1 2 0 8 0 rtentry 112 123 0 24 4 0 4 4 0 8 0 unpcb 144 489 0 474 4 2 2 3 0 8 1 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpqe 32 103 0 103 2 1 1 1 0 8 1 tcpcb 808 175 0 169 10 8 2 7 0 8 1 arp 120 20 0 4 1 0 1 1 0 8 0 inpcb 368 404 0 394 8 6 2 7 0 8 0 nd6 136 28 0 7 1 0 1 1 0 8 0 kcovpl 48 9 0 2 1 0 1 1 0 8 0 ppxss 1256 3 0 3 1 1 0 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 40 0 12 1 0 1 1 0 8 0 pfstkey 128 40 0 12 2 0 2 2 0 8 0 pfstate 376 40 0 12 4 0 4 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 256 507 0 95 29 0 29 29 0 8 2 art_table 32 508 0 95 4 0 4 4 0 8 0 art_node 16 122 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 18 0 14 1 0 1 1 0 8 0 semapl 112 59 0 49 1 0 1 1 0 8 0 shmpl 112 26 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2219 0 771 91 0 91 91 0 8 0 ffsino 272 2219 0 771 97 0 97 97 0 8 0 nchpl 144 3225 0 1577 64 0 64 64 0 8 0 uvmvnodes 80 2553 0 0 53 0 53 53 0 8 0 vnodes 216 2553 0 0 142 0 142 142 0 8 0 namei 1024 11606 0 11605 3 2 1 2 0 8 0 percpumem 16 49 0 7 1 0 1 1 0 8 0 kstatmem 264 36 0 14 2 0 2 2 0 8 0 scxspl 216 10635 0 10635 10 9 1 8 1 8 1 plimitpl 152 55 0 39 1 0 1 1 0 8 0 sigapl 424 971 0 925 7 1 6 6 0 8 0 futexpl 64 4670 0 4670 1 0 1 1 0 8 1 knotepl 120 110 0 0 4 0 4 4 0 8 0 kqueuepl 216 51 0 43 1 0 1 1 0 8 0 pipepl 320 438 0 413 8 5 3 8 0 8 0 fdescpl 496 953 0 928 5 1 4 5 0 8 0 filepl 152 5408 0 5187 24 13 11 19 0 8 1 lockfpl 104 85 0 83 1 0 1 1 0 8 0 lockfspl 48 40 0 38 1 0 1 1 0 8 0 sessionpl 144 25 0 9 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 350 0 338 1 0 1 1 0 8 0 zombiepl 144 963 0 959 1 0 1 1 0 8 0 processpl 1072 971 0 925 4 0 4 4 0 8 0 procpl 696 1929 0 1859 9 1 8 8 0 8 1 sosppl 168 16 0 16 1 1 0 1 0 8 0 sockpl 488 968 0 940 17 8 9 12 0 8 4 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 254 0 0 32 0 32 32 0 8 0 mtagpl 96 49 0 0 2 0 2 2 0 8 0 mbufpl 256 288 0 0 18 0 18 18 0 8 0 bufpl 288 5123 0 143 356 0 356 356 0 8 0 anonpl 24 232758 0 221597 92 7 85 91 0 186 1 amapchunkpl 152 28012 0 27134 42 4 38 40 0 158 2 amappl16 200 5807 0 5437 24 4 20 24 0 8 0 amappl15 192 6 0 5 1 0 1 1 0 8 0 amappl14 184 176 0 160 2 0 2 2 0 8 0 amappl13 176 21 0 20 1 0 1 1 0 8 0 amappl12 168 1655 0 1621 4 2 2 3 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 26 0 18 1 0 1 1 0 8 0 amappl9 144 190 0 189 2 1 1 1 0 8 0 amappl8 136 212 0 151 3 0 3 3 0 8 0 amappl7 128 78 0 65 2 1 1 2 0 8 0 amappl6 120 284 0 262 2 1 1 2 0 8 0 amappl5 112 194 0 183 1 0 1 1 0 8 0 amappl4 104 620 0 577 3 1 2 3 0 8 0 amappl3 96 5929 0 5845 4 1 3 3 0 8 0 amappl2 88 1222 0 1153 3 1 2 3 0 8 0 amappl1 80 12035 0 11483 23 10 13 23 0 8 0 amappl 88 8220 0 7988 6 0 6 6 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 28 0 0 1 0 1 1 0 8 0 uaddrrnd 24 953 0 926 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 953 0 926 1 0 1 1 0 8 0 vmmpekpl 168 13764 0 13695 4 0 4 4 0 8 0 vmmpepl 168 79301 0 77060 131 25 106 120 0 357 4 vmsppl 464 952 0 926 5 1 4 5 0 8 0 rwobjpl 56 29007 0 24959 59 1 58 58 0 8 0 pdppl 4096 1914 0 1852 130 62 68 80 0 8 6 pvpl 32 531413 0 514710 340 180 160 339 0 265 1 pmappl 248 952 0 926 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 788 0 81 21 0 21 21 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000d65028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000d65028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000d65018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d65000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000d65000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff80002126c878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002129f338,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff80002129f338,ffff8000295b1060,ffff8000295b10b0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff8000295b1130) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000295b1130) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x782dd5bb7100, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d58ff0) 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(ffffffff82cf3cd0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cf3cd0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82cf3cd0,1) at __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x4c6 sys/kern/sched_bsd.c:470 yield() at yield+0x5b sys/kern/sched_bsd.c:324 pool_get(ffffffff82d389b8,1) at pool_get+0x19d sys/kern/subr_pool.c:589 uvm_mapent_alloc(ffffffff82ccca18,0) at uvm_mapent_alloc+0x2ff sys/uvm/uvm_map.c:1542 uvm_map_clip_start(ffffffff82ccca18,fffffd8079af3750,ffff800027b8c000) at uvm_map_clip_start+0x9b sys/uvm/uvm_map.c:4722 uvm_unmap_remove(ffffffff82ccca18,ffff800027b8c000,ffff800027b92000,ffff8000211b97d0,0,1,e2e40be959dccbd0) at uvm_unmap_remove+0x3a1 uvm_unmap(ffffffff82ccca18,ffff800027b8c000,ffff800027b92000) at uvm_unmap+0x9d vm_map_unlock_ln sys/uvm/uvm_map.c:5379 [inline] uvm_unmap(ffffffff82ccca18,ffff800027b8c000,ffff800027b92000) at uvm_unmap+0x9d sys/uvm/uvm_map.c:1856 uvm_uarea_free(ffff800021237330) at uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288 reaper(ffff8000211acda0) at reaper+0x168 sys/kern/kern_exit.c:438 end trace frame: 0x0, count: -14