witness: lock_object uninitialized: 0xffff800000d1f028 Starting stack trace... witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x742adb957680, 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(ffff800000d1f028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x742adb957680, count: -9 ddb{0}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff800021278fb0 rbx 0x3 rdx 0x3fd rcx 0 rax 0x14 r8 0xffff800021278f50 r9 0x8080808080808080 r10 0xffff800021278ea0 r11 0x8895a3ade02837e r12 0xffff800000d1f001 r13 0xffff800000d1f028 r14 0 r15 0 rip 0xffffffff8227e57c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff800021278fa0 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor3149761085) pid=440723 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff8000211fd5e8,0xffff8000211fc860 process=0xffff8000212a4878 user=0xffff800021274000, vmspace=0xfffffd80704fa758 estcpu=32, cpticks=18, pctcpu=0.0 user=0, sys=7, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 94806 17526 59323 0 2 0x480 syz-executor3149761085 94806 103873 59323 0 3 0x4000000 futex syz-executor3149761085 94806 293685 59323 0 2 0x4000000 syz-executor3149761085 63560 440350 67160 0 2 0 syz-executor3149761085 63560 201053 67160 0 2 0x4000000 syz-executor3149761085 63560 442968 67160 0 2 0x4000000 syz-executor3149761085 12255 458945 50677 0 2 0 syz-executor3149761085 12255 333634 50677 0 3 0x4000080 fsleep syz-executor3149761085 12255 321556 50677 0 2 0x4000000 syz-executor3149761085 9717 434524 73987 0 2 0 syz-executor3149761085 9717 484276 73987 0 3 0x4000080 fsleep syz-executor3149761085 9717 85378 73987 0 2 0x4000000 syz-executor3149761085 14845 161381 71189 0 2 0 syz-executor3149761085 14845 190847 71189 0 3 0x4000000 futex syz-executor3149761085 14845 6169 71189 0 3 0x4000000 futex syz-executor3149761085 62633 390095 38105 0 2 0 syz-executor3149761085 59323 360680 38105 0 2 0x480 syz-executor3149761085 73987 454176 38105 0 2 0 syz-executor3149761085 50677 97387 38105 0 2 0 syz-executor3149761085 86056 271532 38105 0 2 0x480 syz-executor3149761085 67160 355781 38105 0 2 0x480 syz-executor3149761085 71189 522915 38105 0 2 0 syz-executor3149761085 50742 173961 38105 0 2 0 syz-executor3149761085 38105 59870 23610 0 3 0x82 nanoslp syz-executor3149761085 23610 369958 54962 0 3 0x10008a sigsusp ksh 54962 423014 63632 0 3 0x9a kqread sshd 85021 286739 1 0 2 0x100083 getty 63632 88990 1 0 3 0x88 kqread sshd 5175 278877 62103 74 3 0x1100092 bpf pflogd 62103 122966 1 0 3 0x80 netio pflogd 80049 217119 8760 73 2 0x1100090 syslogd 8760 493444 1 0 3 0x100082 netio syslogd 4445 126743 1 0 3 0x100080 kqread resolvd 20068 156966 78355 77 3 0x100092 kqread dhcpleased 20842 519862 78355 77 3 0x100092 kqread dhcpleased 78355 494196 1 0 3 0x80 kqread dhcpleased 98911 229559 0 0 3 0x14200 bored smr 89184 247254 0 0 2 0x14200 zerothread 21050 447125 0 0 3 0x14200 aiodoned aiodoned 66136 509687 0 0 3 0x14200 syncer update 75320 462461 0 0 3 0x14200 cleaner cleaner 93357 253168 0 0 7 0x14200 reaper 68962 119674 0 0 3 0x14200 pgdaemon pagedaemon 66253 266641 0 0 3 0x14200 bored viomb 39779 113583 0 0 3 0x40014200 acpi0 acpi0 59137 394689 0 0 3 0x40014200 idle1 86763 424428 0 0 3 0x14200 bored softnet3 53917 507915 0 0 3 0x14200 bored softnet2 46502 86860 0 0 3 0x14200 bored softnet1 22052 209879 0 0 3 0x14200 bored softnet0 98524 141146 0 0 3 0x14200 bored systqmp 35795 33914 0 0 3 0x14200 bored systq 7775 110001 0 0 3 0x40014200 bored softclock 57748 339843 0 0 3 0x40014200 idle0 1 447360 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 63560 (syz-executor3149761085) thread 0xffff8000211f3b40 (201053) exclusive rwlock futex r = 0 (0xffffffff82b8c6c0) #0 witness_lock+0x447 #1 sys_futex+0x60 sys/kern/sys_futex.c:98 #2 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #2 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #3 Xsyscall+0x128 Process 62633 (syz-executor3149761085) thread 0xffff8000211f2580 (390095) exclusive rwlock vmmaplk r = 0 (0xfffffd80704fadc0) #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 uvmspace_fork+0x3b sys/uvm/uvm_map.c:3894 #4 process_new+0x304 sys/kern/kern_fork.c:262 #5 fork1+0x318 sys/kern/kern_fork.c:383 #6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #7 Xsyscall+0x128 Process 50742 (syz-executor3149761085) thread 0xffff8000212362d0 (173961) exclusive rwlock vmmaplk r = 0 (0xfffffd806d78cdb8) #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 uvmspace_fork+0xb6 sys/uvm/uvm_map.c:3903 #4 process_new+0x304 sys/kern/kern_fork.c:262 #5 fork1+0x318 sys/kern/kern_fork.c:383 #6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #7 Xsyscall+0x128 exclusive rwlock vmmaplk r = 0 (0xfffffd806d78c4a8) #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 uvmspace_fork+0x3b sys/uvm/uvm_map.c:3894 #4 process_new+0x304 sys/kern/kern_fork.c:262 #5 fork1+0x318 sys/kern/kern_fork.c:383 #6 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #6 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 #7 Xsyscall+0x128 Process 93357 (reaper) thread 0xffff8000211ad310 (253168) exclusive rwlock kmmaplk r = 0 (0xffffffff82d768b8) #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 10159 6455K 6456K 78643K 11237 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 114 0 pf 15 6K 10K 78643K 26 0 ifaddr 13 9K 9K 78643K 13 0 ifgroup 22 1K 1K 78643K 22 0 counters 44 33K 33K 78643K 44 0 ioctlops 0 0K 4K 78643K 1475 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1176 74K 74K 78643K 1192 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 88 175K 175K 78643K 1438 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 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 25 122K 122K 78643K 25 0 exec 0 0K 1K 78643K 269 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 149 7K 7K 78643K 3828 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 4 0 temp 1 5904K 5968K 78643K 3079 0 kqueue 11 16K 18K 78643K 24 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 20 0 17 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 1 1 0 1 0 8 0 tcpqe 32 132 0 132 1 1 0 1 0 8 0 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 368 33 0 27 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 9 0 0 1 0 1 1 0 8 0 pfstkey 128 9 0 0 1 0 1 1 0 8 0 pfstate 376 9 0 0 1 0 1 1 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 97 0 0 7 0 7 7 0 8 0 art_table 32 98 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1432 0 38 88 0 88 88 0 8 0 ffsino 272 1432 0 38 93 0 93 93 0 8 0 nchpl 144 1618 0 49 59 0 59 59 0 8 0 uvmvnodes 80 1446 0 0 30 0 30 30 0 8 0 vnodes 216 1446 0 0 81 0 81 81 0 8 0 namei 1024 5469 0 5466 3 1 2 2 0 8 1 percpumem 16 35 0 0 1 0 1 1 0 8 0 kstatmem 264 8 0 0 1 0 1 1 0 8 0 scxspl 216 4956 0 4956 3 2 1 2 1 8 1 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 424 576 0 528 7 1 6 6 0 8 0 futexpl 64 636 0 633 1 0 1 1 0 8 0 knotepl 120 41 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 94 0 91 1 0 1 1 0 8 0 fdescpl 496 559 0 529 4 0 4 4 0 8 0 filepl 152 1275 0 1217 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 104 71 0 59 1 0 1 1 0 8 0 zombiepl 144 570 0 569 2 1 1 1 0 8 0 processpl 1072 576 0 528 4 0 4 4 0 8 0 procpl 696 854 0 794 6 0 6 6 0 8 0 sockpl 488 88 0 64 4 0 4 4 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 280 0 0 35 0 35 35 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 286 0 0 19 1 18 19 0 8 0 bufpl 288 2570 0 90 178 0 178 178 0 8 0 anonpl 24 183528 0 181215 26 11 15 25 0 186 0 amapchunkpl 152 12639 0 12358 14 1 13 13 0 158 1 amappl16 200 5154 0 5148 5 4 1 5 0 8 0 amappl15 192 31 0 31 1 1 0 1 0 8 0 amappl14 184 152 0 141 1 0 1 1 0 8 0 amappl13 176 14 0 14 1 1 0 1 0 8 0 amappl12 168 1096 0 1076 2 1 1 2 0 8 0 amappl11 160 83 0 69 1 0 1 1 0 8 0 amappl10 152 14 0 14 1 1 0 1 0 8 0 amappl9 144 153 0 153 1 1 0 1 0 8 0 amappl8 136 34 0 32 1 0 1 1 0 8 0 amappl7 128 264 0 248 1 0 1 1 0 8 0 amappl6 120 175 0 160 1 0 1 1 0 8 0 amappl5 112 117 0 106 1 0 1 1 0 8 0 amappl4 104 456 0 423 1 0 1 1 0 8 0 amappl3 96 3356 0 3301 3 1 2 2 0 8 0 amappl2 88 729 0 673 2 0 2 2 0 8 0 amappl1 80 10624 0 10118 13 1 12 12 0 8 0 amappl 88 3524 0 3421 3 0 3 3 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 560 0 529 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 559 0 529 1 0 1 1 0 8 0 vmmpekpl 168 8337 0 8313 2 0 2 2 0 8 0 vmmpepl 168 44197 0 42812 64 1 63 63 0 357 0 vmsppl 464 559 0 529 4 0 4 4 0 8 0 rwobjpl 56 22066 0 19846 33 1 32 32 0 8 0 pdppl 4096 1128 0 1058 84 14 70 70 0 8 0 pvpl 32 298743 0 293171 58 12 46 57 0 265 0 pmappl 248 559 0 529 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 518 0 18 15 0 15 15 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(ffff800000d1f028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000d1f028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000d1f018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000d1f000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000212a4878) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff8000211fc2e0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220 sys_exit(ffff8000211fc2e0,ffff800021279210,ffff800021279260) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff8000212792e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212792e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x742adb957680, 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(ffffffff82d6e788) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d6e788) at __mp_lock+0x122 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82d6e788,1) 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(ffffffff82cbd8c8,1) at pool_get+0x19d sys/kern/subr_pool.c:589 uvm_mapent_alloc(ffffffff82d767c0,0) at uvm_mapent_alloc+0x2ff sys/uvm/uvm_map.c:1542 uvm_map_clip_start(ffffffff82d767c0,fffffd8070522938,ffff800021298000) at uvm_map_clip_start+0x9b sys/uvm/uvm_map.c:4722 uvm_unmap_remove(ffffffff82d767c0,ffff800021298000,ffff80002129e000,ffff8000211b9910,0,1,585f903dd8f502a8) at uvm_unmap_remove+0x3a1 uvm_unmap(ffffffff82d767c0,ffff800021298000,ffff80002129e000) at uvm_unmap+0x9d vm_map_unlock_ln sys/uvm/uvm_map.c:5379 [inline] uvm_unmap(ffffffff82d767c0,ffff800021298000,ffff80002129e000) at uvm_unmap+0x9d sys/uvm/uvm_map.c:1856 uvm_uarea_free(ffff8000211fd330) at uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288 reaper(ffff8000211ad310) at reaper+0x168 sys/kern/kern_exit.c:438 end trace frame: 0x0, count: -14