uvm_fault(fffffd8064cc8758,20119000,2,3) at uvm_fault+0x176 sys/uvm/uvm_fault.c:946 uvm_fault_wire(fffffd8064cc8758,20119000,2011c000,3) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1386 uvm_map_pageable_wire(fffffd8064cc8758,fffffd806b83d7e8,fffffd806b1726d0,3e6,ffffffff816079fe,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlock(ffff80002123d260,ffff80002129afe8,ffff80002129b030) at sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 syscall(ffff80002129b0b0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002129b0b0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x99def222790, count: -14 ddb{0}> show registers rdi 0x3 rsi 0x40000 acpi_pdirpa+0x2be68 rbp 0xffff80002129a880 rbx 0x3 rdx 0xffff800000ac7e80 rcx 0x3 rax 0x3ffff acpi_pdirpa+0x2be67 r8 0xffffffff8160568f witness_checkorder+0x101f r9 0x5 r10 0xda78f6142eee7720 r11 0x5a7bed5a558eb8e7 r12 0xffffffff82818f80 w_lodata+0x542d0 r13 0xfffffd806ed933c8 r14 0xffffffff82805550 w_lodata+0x408a0 r15 0xfffffd8002cd3540 rip 0xffffffff81ce8318 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002129a870 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.0) pid=370838 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff80002123ca80,0xffffffff828c87f8 process=0xffff800021236190 user=0xffff800021296000, vmspace=0xfffffd8064cc8758 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 93617 387145 38991 0 7 0 syz-executor.0 *93617 370838 38991 0 7 0x4000000 syz-executor.0 45593 278822 63183 0 3 0x82 nanoslp syz-executor.1 69023 125437 0 0 3 0x14200 acct acct 38991 163096 63183 0 3 0x82 nanoslp syz-executor.0 1556 500035 0 0 3 0x14200 bored sosplice 63183 116328 14280 0 3 0x82 thrsleep syz-fuzzer 63183 113282 14280 0 3 0x4000082 nanoslp syz-fuzzer 63183 35568 14280 0 3 0x4000082 kqread syz-fuzzer 63183 334156 14280 0 3 0x4000082 thrsleep syz-fuzzer 63183 100711 14280 0 3 0x4000082 thrsleep syz-fuzzer 63183 92840 14280 0 3 0x4000082 thrsleep syz-fuzzer 63183 445985 14280 0 3 0x4000082 thrsleep syz-fuzzer 63183 7821 14280 0 3 0x4000082 thrsleep syz-fuzzer 14280 391933 14656 0 3 0x10008a sigsusp ksh 14656 258640 51669 0 3 0x92 kqread sshd 49592 311390 1 0 3 0x100083 ttyin getty 51669 83774 1 0 3 0x80 kqread sshd 93609 74527 78879 74 3 0x100092 bpf pflogd 78879 483825 1 0 3 0x80 netio pflogd 31468 120852 55270 73 3 0x100090 kqread syslogd 55270 97736 1 0 3 0x100082 netio syslogd 79676 267125 1 77 3 0x100090 poll dhclient 59384 437046 1 0 3 0x80 poll dhclient 41736 96567 0 0 3 0x14200 bored smr 48518 78437 0 0 3 0x14200 pgzero zerothread 88644 9212 0 0 3 0x14200 aiodoned aiodoned 58893 52607 0 0 3 0x14200 syncer update 26361 206298 0 0 3 0x14200 cleaner cleaner 61698 280607 0 0 3 0x14200 reaper reaper 98609 246001 0 0 3 0x14200 pgdaemon pagedaemon 38463 420185 0 0 3 0x14200 bored crynlk 23830 2464 0 0 3 0x14200 bored crypto 28265 326635 0 0 3 0x14200 bored viomb 31514 67522 0 0 3 0x40014200 acpi0 acpi0 24925 154290 0 0 3 0x40014200 idle1 91747 119673 0 0 3 0x14200 bored softnet 70761 460622 0 0 3 0x14200 bored systqmp 19316 391151 0 0 3 0x14200 bored systq 9649 7134 0 0 3 0x40014200 bored softclock 67357 498493 0 0 3 0x40014200 idle0 1 394488 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 93617 (syz-executor.0) thread 0xffff80002123d260 (370838) shared rwlock vmmaplk r = 0 (0xfffffd8064cc8770) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176 #1 rw_enter+0x446 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5463 #3 uvm_map_pageable+0x120 sys/uvm/uvm_map.c:2463 #4 sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 #5 syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 #6 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828c8a10) #0 witness_lock+0x4b0 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4b0 sys/kern/subr_witness.c:1176 #1 syscall+0x3fd mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3fd sys/arch/amd64/amd64/trap.c:590 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9565 6452K 7222K 78643K 21367 0 pcb 13 8K 8K 78643K 515 0 rtable 83 3K 5K 78643K 1286 0 ifaddr 86 15K 16K 78643K 370 0 sysctl 2 0K 0K 78643K 2 0 counters 44 34K 34K 78643K 134 0 ioctlops 0 0K 4K 78643K 1809 0 iov 0 0K 24K 78643K 288 0 mount 1 1K 1K 78643K 1 0 vnodes 1233 78K 78K 78643K 5093 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 46 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 581 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 11201 0 sigio 0 0K 0K 78643K 32 0 proc 62 63K 95K 78643K 972 0 subproc 32 2K 2K 78643K 157 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 548 0 in_multi 26 1K 2K 78643K 522 0 ether_multi 1 0K 0K 78643K 94 0 mrt 0 0K 0K 78643K 51 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 2K 78643K 839 0 pfkey data 0 0K 0K 78643K 5 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 319 621K 621K 78643K 27359 0 UVM aobj 100 3K 3K 78643K 109 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 503 0 NDP 16 0K 0K 78643K 118 0 temp 147 3981K 4616K 78643K 44310 0 kqueue 5 8K 16K 78643K 291 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 arp 64 20 0 14 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 120 222 0 220 1 0 1 1 0 8 0 rtentry 112 246 0 215 2 0 2 2 0 8 0 unpcb 120 1722 0 1698 3 2 1 2 0 8 0 syncache 296 53 0 53 8 8 0 1 0 8 0 tcpqe 32 23 0 23 4 4 0 1 0 8 0 tcpcb 736 1234 0 1227 20 18 2 4 0 8 0 inpcb 296 3540 0 3532 9 8 1 2 0 8 0 rttmr 72 10 0 10 2 2 0 1 0 8 0 nd6 48 67 0 62 1 0 1 1 0 8 0 pkpcb 40 20 0 20 5 5 0 1 0 8 0 kcovpl 48 9 0 7 1 0 1 1 0 8 0 ppxss 1128 6 0 6 3 3 0 1 0 8 0 pffrag 232 15 0 15 4 4 0 1 0 482 0 pffrnode 88 15 0 15 4 4 0 1 0 8 0 pffrent 40 218 0 218 6 6 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 pfrktable 1344 42 0 42 2 2 0 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 115 0 108 1 0 1 1 0 8 0 pfstkey 112 115 0 108 1 0 1 1 0 8 0 pfstate 328 115 0 108 5 2 3 3 0 8 0 pfrule 1360 129 0 103 4 1 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1057 0 902 16 5 11 13 0 8 0 art_table 32 1058 0 902 2 0 2 2 0 8 0 art_node 16 244 0 218 1 0 1 1 0 8 0 sysvmsgpl 40 76 0 36 2 1 1 1 0 8 0 semupl 112 5 0 5 1 1 0 1 0 8 0 semapl 112 579 0 569 1 0 1 1 0 8 0 shmpl 112 106 0 10 4 1 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 14444 0 13023 90 1 89 89 0 8 0 ffsino 272 14444 0 13023 95 0 95 95 0 8 0 nchpl 144 26873 0 25285 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 66116 0 66116 2 1 1 1 0 8 1 percpumem 16 78 0 45 1 0 1 1 0 8 0 vcpupl 1984 44 0 0 6 0 6 6 0 8 0 vmpool 560 60 0 16 5 1 4 4 0 8 0 pfiaddrpl 120 14 0 14 2 2 0 1 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 80657 0 80657 20 19 1 8 0 8 1 plimitpl 152 434 0 426 1 0 1 1 0 8 0 sigapl 424 11400 0 11366 4 0 4 4 0 8 0 futexpl 56 71639 0 71639 2 1 1 1 0 8 1 knotepl 112 104576 0 104550 4 3 1 2 0 8 0 kqueuepl 168 6203 0 6198 1 0 1 1 0 8 0 pipepl 336 408 0 397 13 11 2 3 0 8 0 fdescpl 496 11380 0 11364 3 0 3 3 0 8 0 filepl 152 33957 0 33853 11 6 5 7 0 8 1 lockfpl 104 894 0 893 1 0 1 1 0 8 0 lockfspl 48 345 0 344 1 0 1 1 0 8 0 sessionpl 144 25 0 14 1 0 1 1 0 8 0 pgrppl 48 60 0 49 1 0 1 1 0 8 0 ucredpl 96 3662 0 3653 1 0 1 1 0 8 0 zombiepl 144 11366 0 11365 2 1 1 1 0 8 0 processpl 1072 11400 0 11365 3 0 3 3 0 8 0 procpl 672 25536 0 25493 8 4 4 5 0 8 0 sosppl 168 55 0 55 7 7 0 1 0 8 0 sockpl 432 5544 0 5510 14 9 5 8 0 8 0 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 15 0 0 2 0 2 2 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 19 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 314 0 0 18 0 18 18 0 8 0 mtagpl 96 379 0 0 8 0 8 8 0 8 0 mbufpl 256 1021 0 0 57 0 57 57 0 8 0 bufpl 280 19847 0 13598 447 0 447 447 0 8 0 anonpl 16 761459 0 750939 84 30 54 59 0 124 11 amapchunkpl 152 41908 0 41647 34 23 11 25 0 158 0 amappl16 192 35045 0 34626 48 24 24 33 0 8 2 amappl15 184 1570 0 1569 1 0 1 1 0 8 0 amappl14 176 135 0 129 1 0 1 1 0 8 0 amappl13 168 1615 0 1612 1 0 1 1 0 8 0 amappl12 160 333 0 332 1 0 1 1 0 8 0 amappl11 152 87 0 70 1 0 1 1 0 8 0 amappl10 144 2042 0 2037 1 0 1 1 0 8 0 amappl9 136 3300 0 3298 2 1 1 1 0 8 0 amappl8 128 392 0 272 4 0 4 4 0 8 0 amappl7 120 3353 0 3344 1 0 1 1 0 8 0 amappl6 112 2136 0 2114 1 0 1 1 0 8 0 amappl5 104 10812 0 10794 1 0 1 1 0 8 0 amappl4 96 669 0 635 1 0 1 1 0 8 0 amappl3 88 2314 0 2306 1 0 1 1 0 8 0 amappl2 80 90518 0 90421 3 0 3 3 0 8 0 amappl1 72 330176 0 329699 26 16 10 19 0 8 0 amappl 80 26033 0 25909 3 0 3 3 0 84 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 64 108 0 9 2 0 2 2 0 8 0 uaddrrnd 24 11440 0 11380 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 11440 0 11380 1 0 1 1 0 8 0 vmmpekpl 168 54491 0 54452 2 0 2 2 0 8 0 vmmpepl 168 1419206 0 1417352 155 56 99 99 0 357 12 vmsppl 368 11439 0 11380 6 0 6 6 0 8 0 pdppl 4096 22887 0 22804 105 20 85 85 0 8 2 pvpl 32 4239539 0 4226582 233 96 137 142 0 265 30 pmappl 232 11439 0 11380 5 1 4 4 0 8 0 extentpl 40 58 0 40 1 0 1 1 0 8 0 phpool 112 444 0 59 12 0 12 12 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:398 witness_checkorder(fffffd806ed933c8,9,0) at witness_checkorder+0x1049 rw_enter(fffffd806ed933b8,81) at rw_enter+0xd4 rrw_enter(fffffd806ed933b8,81) at rrw_enter+0x88 sys/kern/kern_rwlock.c:462 VOP_LOCK(fffffd8069ecacc0,81) at VOP_LOCK+0x4b sys/kern/vfs_vops.c:614 vn_lock(fffffd8069ecacc0,81) at vn_lock+0x6c sys/kern/vfs_vnops.c:575 uvn_get(fffffd806a41d208,119000,ffff80002129ac28,ffff80002129ac14,0,1) at uvn_get+0x276 uvm_vnode_lock sys/uvm/uvm_vnode.c:1499 [inline] uvn_get(fffffd806a41d208,119000,ffff80002129ac28,ffff80002129ac14,0,1) at uvn_get+0x276 sys/uvm/uvm_vnode.c:993 uvm_fault_lower(ffff80002129adc8,ffff80002129ada0,ffff80002129aca0,2,3) at uvm_fault_lower+0x6ff sys/uvm/uvm_fault.c:1116 uvm_fault(fffffd8064cc8758,20119000,2,3) at uvm_fault+0x176 sys/uvm/uvm_fault.c:946 uvm_fault_wire(fffffd8064cc8758,20119000,2011c000,3) at uvm_fault_wire+0x63 sys/uvm/uvm_fault.c:1386 uvm_map_pageable_wire(fffffd8064cc8758,fffffd806b83d7e8,fffffd806b1726d0,3e6,ffffffff816079fe,0) at uvm_map_pageable_wire+0x30d sys/uvm/uvm_map.c:2367 sys_mlock(ffff80002123d260,ffff80002129afe8,ffff80002129b030) at sys_mlock+0x180 sys/uvm/uvm_mmap.c:772 syscall(ffff80002129b0b0) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff80002129b0b0) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x99def222790, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d68ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828c8808) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c8808) at __mp_lock+0x122 sys/kern/kern_lock.c:147 sleep_setup(ffff8000222d5a30,ffffffff82849450,120,ffffffff823a2ad2) at sleep_setup+0xcf sys/kern/kern_synch.c:382 tsleep(ffffffff82849450,120,ffffffff823a2ad2,2) at tsleep+0x113 sleep_setup_timeout sys/kern/kern_synch.c:444 [inline] tsleep(ffffffff82849450,120,ffffffff823a2ad2,2) at tsleep+0x113 sys/kern/kern_synch.c:158 sys_nanosleep(ffff80002123ca80,ffff8000222d5b60,ffff8000222d5bb0) at sys_nanosleep+0x1f5 sys/kern/kern_time.c:297 syscall(ffff8000222d5c30) at syscall+0x4a1 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000222d5c30) at syscall+0x4a1 sys/arch/amd64/amd64/trap.c:590 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffae60, count: -9