uvm_fault(fffffd807e9eb180,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807e9eb180,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f65ba0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f65ba0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff8000231062a0,ffff800021f65d68,ffff800021f65db0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f65e30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f65e30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3aebaf0b7d0, count: 243 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:398 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff828f16c8,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807e9eb180,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807e9eb180,fffffd806877e800,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807e9eb180,fffffd806877e800,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807e9eb180,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807e9eb180,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f65ba0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f65ba0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff8000231062a0,ffff800021f65d68,ffff800021f65db0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f65e30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f65e30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3aebaf0b7d0, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800021f65620 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff800023116000 rax 0xffff800000ad8600 r8 0xffffffff820f27ff kprintf+0x16f r9 0x1 r10 0x2 r11 0xa866abba1f49c67 r12 0x1 r13 0xfffffd8066b50950 r14 0xffff8000231062a0 r15 0x3 rip 0xffffffff813b5e58 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800021f65610 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=202885 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800023106c60,0xffffffff828f3448 process=0xffff800020e32400 user=0xffff800021f60000, vmspace=0xfffffd807e9eb180 estcpu=36, cpticks=13, pctcpu=0.0 user=0, sys=13, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22800 465892 95555 0 2 0 syz-executor.1 *22800 202885 95555 0 7 0x4000000 syz-executor.1 42233 443413 0 0 3 0x14200 acct acct 78135 216347 0 0 3 0x14200 bored sosplice 92806 23181 0 0 3 0x14280 nfsidl nfsio 77827 24858 0 0 3 0x14280 nfsidl nfsio 63259 413498 0 0 3 0x14280 nfsidl nfsio 29126 110393 0 0 3 0x14280 nfsidl nfsio 49078 253508 0 0 3 0x14280 nfsidl nfsio 63505 82833 0 0 3 0x14280 nfsidl nfsio 44020 175537 0 0 3 0x14280 nfsidl nfsio 11785 193052 0 0 3 0x14280 nfsidl nfsio 21639 390858 0 0 3 0x14280 nfsidl nfsio 92584 34147 0 0 3 0x14280 nfsidl nfsio 77585 40474 0 0 3 0x14280 nfsidl nfsio 7986 205850 0 0 3 0x14280 nfsidl nfsio 7568 470984 0 0 3 0x14280 nfsidl nfsio 98822 418761 0 0 3 0x14280 nfsidl nfsio 92795 418968 0 0 3 0x14280 nfsidl nfsio 92966 310925 0 0 3 0x14280 nfsidl nfsio 18695 415405 0 0 3 0x14280 nfsidl nfsio 66160 69428 0 0 3 0x14280 nfsidl nfsio 9968 136406 0 0 3 0x14280 nfsidl nfsio 4384 227490 0 0 3 0x14280 nfsidl nfsio 95555 331629 76608 0 2 0x482 syz-executor.1 37481 256313 76608 0 3 0x82 piperd syz-executor.0 76608 480126 80678 0 3 0x82 thrsleep syz-fuzzer 76608 259382 80678 0 2 0x4000482 syz-fuzzer 76608 326298 80678 0 3 0x4000082 thrsleep syz-fuzzer 76608 476073 80678 0 3 0x4000082 thrsleep syz-fuzzer 76608 453390 80678 0 3 0x4000082 thrsleep syz-fuzzer 76608 91585 80678 0 3 0x4000082 thrsleep syz-fuzzer 76608 329433 80678 0 3 0x4000082 thrsleep syz-fuzzer 76608 312704 80678 0 3 0x4000082 kqread syz-fuzzer 76608 501338 80678 0 3 0x4000082 thrsleep syz-fuzzer 76608 315784 80678 0 2 0x4000002 syz-fuzzer 80678 14337 94215 0 3 0x10008a pause ksh 94215 101791 82770 0 3 0x92 select sshd 96838 234381 1 0 2 0x100083 getty 82770 155638 1 0 3 0x80 select sshd 86575 495735 19097 74 3 0x100092 bpf pflogd 19097 101526 1 0 3 0x80 netio pflogd 25055 343583 1303 73 2 0x100090 syslogd 1303 303774 1 0 3 0x100082 netio syslogd 6454 159679 1 77 3 0x100090 poll dhclient 86385 264726 1 0 3 0x80 poll dhclient 15777 203172 0 0 2 0x14200 smr 38659 139392 0 0 2 0x14200 zerothread 60275 273016 0 0 3 0x14200 aiodoned aiodoned 49530 456532 0 0 3 0x14200 syncer update 3201 517016 0 0 3 0x14200 cleaner cleaner 41255 206184 0 0 3 0x14200 reaper reaper 32955 274320 0 0 3 0x14200 pgdaemon pagedaemon 20482 407624 0 0 3 0x14200 bored crynlk 71711 103173 0 0 3 0x14200 bored crypto 85246 221734 0 0 3 0x40014200 acpi0 acpi0 32445 144203 0 0 7 0x40014200 idle1 71034 151568 0 0 3 0x14200 bored softnet 32256 140225 0 0 3 0x14200 bored systqmp 29741 217338 0 0 3 0x14200 bored systq 90426 187756 0 0 2 0x40014200 softclock 10590 522399 0 0 3 0x40014200 idle0 1 175740 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 22800 (syz-executor.1) thread 0xffff8000231062a0 (202885) exclusive rwlock vmmaplk r = 0 (0xfffffd807e9eb198) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 vm_map_lock_ln+0x111 sys/uvm/uvm_map.c:5445 #3 uvmfault_lookup+0xbe sys/uvm/uvm_fault.c:1442 #4 uvm_fault+0xbbd uvmfault_amapcopy sys/uvm/uvm_fault.c:232 [inline] #4 uvm_fault+0xbbd sys/uvm/uvm_fault.c:559 #5 pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 #6 kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 #7 alltraps_kern_meltdown+0x7b #8 copyin+0x4b #9 sys_connect+0x9b sys/kern/uipc_syscalls.c:360 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rwlock netlock r = 0 (0xffffffff827107f8) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_connect+0x6a sys/kern/uipc_syscalls.c:355 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82892090) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9567 6568K 7461K 78643K 17989 0 pcb 13 8K 8K 78643K 203 0 rtable 111 8K 10K 78643K 666 0 ifaddr 138 28K 28K 78643K 292 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 81 0 ioctlops 0 0K 4K 78643K 1655 0 iov 0 0K 24K 78643K 192 0 mount 1 1K 1K 78643K 1 0 vnodes 1233 78K 78K 78643K 2984 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 13 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 201 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1287 0 sigio 0 0K 0K 78643K 11 0 proc 64 63K 95K 78643K 546 0 subproc 32 2K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 111 0 in_multi 174 6K 6K 78643K 282 0 ether_multi 1 0K 0K 78643K 33 0 mrt 0 0K 0K 78643K 25 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 304 0 pfkey data 0 0K 0K 78643K 2 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 154 122K 123K 78643K 4207 0 UVM aobj 29 7K 7K 78643K 29 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 170 0 NDP 17 0K 0K 78643K 44 0 temp 148 3861K 3925K 78643K 23211 0 kqueue 3 4K 16K 78643K 33 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 8 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 58 0 56 1 0 1 1 0 8 0 rtentry 112 90 0 56 2 0 2 2 0 8 0 unpcb 120 504 0 494 1 0 1 1 0 8 0 syncache 264 13 0 13 4 4 0 1 0 8 0 tcpqe 32 381 0 381 4 4 0 2 0 8 0 tcpcb 544 1345 0 1341 3 2 1 2 0 8 0 inpcb 280 2116 0 2108 9 8 1 2 0 8 0 rttmr 72 12 0 12 3 3 0 1 0 8 0 nd6 48 18 0 13 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 3 0 1 0 8 0 ppxss 1128 2 0 2 2 2 0 1 0 8 0 pfstscr 40 11 0 9 1 0 1 1 0 8 0 pffrag 232 6 0 5 4 3 1 1 0 482 0 pffrnode 88 6 0 5 4 3 1 1 0 8 0 pffrent 40 16 0 15 4 3 1 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 97 0 87 4 3 1 2 0 8 0 pftag 88 10 0 10 1 1 0 1 0 8 0 pfstitem 24 29 0 24 1 0 1 1 0 8 0 pfstkey 112 32 0 27 1 0 1 1 0 8 0 pfstate 328 27 0 23 2 0 2 2 0 8 0 pfrule 1360 54 0 32 3 1 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 530 0 370 16 6 10 14 0 8 0 art_table 32 532 0 370 2 0 2 2 0 8 0 art_node 16 89 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 23 2 1 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 197 0 187 1 0 1 1 0 8 0 shmpl 112 27 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3095 0 1690 89 0 89 89 0 8 0 ffsino 272 3095 0 1690 96 1 95 95 0 8 0 nchpl 144 5084 0 3476 60 0 60 60 0 8 0 uvmvnodes 72 4761 0 0 87 0 87 87 0 8 0 vnodes 208 4761 0 0 251 0 251 251 0 8 0 namei 1024 15706 0 15706 7 6 1 1 0 8 1 percpumem 16 51 0 19 1 0 1 1 0 8 0 vcpupl 1984 15 0 0 2 0 2 2 0 8 0 vmpool 560 20 0 5 4 2 2 2 0 8 0 pfiaddrpl 120 29 0 16 2 1 1 1 0 8 0 scxspl 192 16092 0 16092 15 14 1 7 0 8 1 plimitpl 152 105 0 97 1 0 1 1 0 8 0 sigapl 424 1524 0 1471 9 3 6 7 0 8 0 futexpl 56 25333 0 25333 7 6 1 1 0 8 1 knotepl 112 101 0 82 1 0 1 1 0 8 0 kqueuepl 144 152 0 150 1 0 1 1 0 8 0 pipelkpl 48 269 0 259 1 0 1 1 0 8 0 pipepl 120 538 0 519 1 0 1 1 0 8 0 fdescpl 496 1487 0 1471 3 0 3 3 0 8 0 filepl 152 9756 0 9655 7 2 5 5 0 8 1 lockfpl 104 301 0 300 1 0 1 1 0 8 0 lockfspl 48 104 0 103 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 788 0 779 1 0 1 1 0 8 0 zombiepl 144 1474 0 1474 3 2 1 1 0 8 1 processpl 984 1524 0 1471 8 1 7 7 0 8 0 procpl 624 3365 0 3302 7 1 6 6 0 8 0 sosppl 128 11 0 11 3 3 0 1 0 8 0 sockpl 400 2693 0 2673 11 8 3 4 0 8 1 mcl64k 65536 14 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 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 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 264 0 0 32 3 29 32 0 8 0 mtagpl 80 103 0 0 3 0 3 3 0 8 0 mbufpl 256 404 0 0 21 1 20 20 0 8 0 bufpl 280 6200 0 146 433 0 433 433 0 8 0 anonpl 16 149251 0 131929 135 50 85 85 0 124 10 amapchunkpl 152 6977 0 6809 30 22 8 21 0 158 0 amappl16 192 7624 0 6660 113 56 57 59 0 8 8 amappl15 184 339 0 337 1 0 1 1 0 8 0 amappl14 176 940 0 933 1 0 1 1 0 8 0 amappl13 168 32 0 28 1 0 1 1 0 8 0 amappl12 160 18 0 14 1 0 1 1 0 8 0 amappl11 152 393 0 377 1 0 1 1 0 8 0 amappl10 144 16 0 11 1 0 1 1 0 8 0 amappl9 136 387 0 385 1 0 1 1 0 8 0 amappl8 128 374 0 334 2 0 2 2 0 8 0 amappl7 120 116 0 106 1 0 1 1 0 8 0 amappl6 112 23 0 19 1 0 1 1 0 8 0 amappl5 104 1405 0 1386 1 0 1 1 0 8 0 amappl4 96 495 0 465 1 0 1 1 0 8 0 amappl3 88 1084 0 1078 1 0 1 1 0 8 0 amappl2 80 11335 0 11258 2 0 2 2 0 8 0 amappl1 72 36056 0 35620 23 13 10 18 0 8 0 amappl 80 3631 0 3576 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 28 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1507 0 1476 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1507 0 1476 1 0 1 1 0 8 0 vmmpekpl 168 13919 0 13879 2 0 2 2 0 8 0 vmmpepl 168 180796 0 178608 166 59 107 109 0 357 5 vmsppl 368 1506 0 1476 3 0 3 3 0 8 0 pdppl 4096 3021 0 2967 8 1 7 7 0 8 0 pvpl 32 426937 0 407440 292 96 196 197 0 265 32 pmappl 232 1506 0 1476 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 308 0 32 9 1 8 9 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 yield() at yield+0x77 sys/kern/sched_bsd.c:304 pool_get(ffffffff828f16c8,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd807e9eb180,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd807e9eb180,fffffd806877e800,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd807e9eb180,fffffd806877e800,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd807e9eb180,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd807e9eb180,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800021f65ba0,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800021f65ba0) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff8000231062a0,ffff800021f65d68,ffff800021f65db0) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800021f65e30) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021f65e30) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3aebaf0b7d0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d80ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187 sched_idle(ffff800020d80ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5