uvm_fault(fffffd80641d32f0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd80641d32f0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800020ebb700,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800020ebb700) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec7398,ffff800020ebb8c8,ffff800020ebb910) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800020ebb990) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ebb990) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x730463fabd0, 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(ffffffff82640480,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd80641d32f0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd80641d32f0,fffffd806b23f770,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd80641d32f0,fffffd806b23f770,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd80641d32f0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd80641d32f0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800020ebb700,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800020ebb700) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec7398,ffff800020ebb8c8,ffff800020ebb910) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800020ebb990) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ebb990) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x730463fabd0, count: -14 ddb{0}> show registers rdi 0 rsi 0x3ffff acpi_pdirpa+0x2be67 rbp 0xffff800020ebb180 rbx 0x2 rdx 0x40000 acpi_pdirpa+0x2be68 rcx 0xffff80002319a000 rax 0xffff8000009d7640 r8 0xffffffff816a48af kprintf+0x16f r9 0x1 r10 0x2 r11 0xbc030b9642edf55c r12 0x1 r13 0xfffffd806477e9f0 r14 0xffff800020ec7398 r15 0x3 rip 0xffffffff81a150c8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020ebb170 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.1) pid=218362 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020ec6288,0xffffffff826879a0 process=0xffff80002318cf90 user=0xffff800020eb6000, vmspace=0xfffffd80641d32f0 estcpu=36, cpticks=13, pctcpu=0.0 user=0, sys=13, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 33199 319962 28628 0 2 0 syz-executor.1 *33199 218362 28628 0 7 0x4000000 syz-executor.1 24399 92520 0 0 3 0x14280 nfsidl nfsio 47791 75169 0 0 3 0x14280 nfsidl nfsio 26566 206865 0 0 3 0x14280 nfsidl nfsio 18863 82743 0 0 3 0x14280 nfsidl nfsio 27447 203701 0 0 3 0x14280 nfsidl nfsio 55511 387305 0 0 3 0x14280 nfsidl nfsio 8199 39480 0 0 3 0x14280 nfsidl nfsio 87402 238889 0 0 3 0x14280 nfsidl nfsio 86834 496580 0 0 3 0x14280 nfsidl nfsio 50554 130140 0 0 3 0x14280 nfsidl nfsio 12854 217203 0 0 3 0x14280 nfsidl nfsio 10048 299635 0 0 3 0x14280 nfsidl nfsio 10160 362369 0 0 3 0x14280 nfsidl nfsio 78616 136877 0 0 3 0x14280 nfsidl nfsio 13235 281721 0 0 3 0x14280 nfsidl nfsio 52654 349727 0 0 3 0x14280 nfsidl nfsio 51647 117563 0 0 3 0x14280 nfsidl nfsio 10758 79693 0 0 3 0x14280 nfsidl nfsio 23469 58237 0 0 3 0x14280 nfsidl nfsio 63178 142603 0 0 3 0x14280 nfsidl nfsio 45161 47564 0 0 3 0x14200 bored sosplice 28628 286243 15334 0 2 0x482 syz-executor.1 36034 30900 15334 0 2 0x2 syz-executor.0 15334 412665 81801 0 3 0x82 thrsleep syz-fuzzer 15334 421282 81801 0 2 0x4000482 syz-fuzzer 15334 335167 81801 0 3 0x4000082 thrsleep syz-fuzzer 15334 21096 81801 0 2 0x4000482 syz-fuzzer 15334 283486 81801 0 3 0x4000082 thrsleep syz-fuzzer 15334 179572 81801 0 3 0x4000082 thrsleep syz-fuzzer 15334 106244 81801 0 3 0x4000082 thrsleep syz-fuzzer 15334 342242 81801 0 3 0x4000082 thrsleep syz-fuzzer 15334 370137 81801 0 3 0x4000082 kqread syz-fuzzer 15334 241682 81801 0 3 0x4000082 thrsleep syz-fuzzer 81801 17124 40216 0 3 0x10008a pause ksh 40216 78035 47148 0 3 0x92 select sshd 64702 103680 1 0 2 0x100083 getty 47148 122515 1 0 3 0x80 select sshd 7217 188926 24327 74 3 0x100092 bpf pflogd 24327 458245 1 0 3 0x80 netio pflogd 77228 231856 54370 73 2 0x100090 syslogd 54370 55660 1 0 3 0x100082 netio syslogd 89969 359282 1 77 3 0x100090 poll dhclient 89631 135367 1 0 3 0x80 poll dhclient 96113 51389 0 0 3 0x14200 bored smr 15420 43226 0 0 2 0x14200 zerothread 65274 77581 0 0 3 0x14200 aiodoned aiodoned 31356 471189 0 0 3 0x14200 syncer update 97762 38779 0 0 3 0x14200 cleaner cleaner 22684 489315 0 0 3 0x14200 reaper reaper 58549 445169 0 0 3 0x14200 pgdaemon pagedaemon 41891 484058 0 0 3 0x14200 bored crynlk 60501 375679 0 0 3 0x14200 bored crypto 62310 219535 0 0 3 0x40014200 acpi0 acpi0 87427 473008 0 0 7 0x40014200 idle1 35432 376813 0 0 3 0x14200 bored softnet 97033 18097 0 0 3 0x14200 bored systqmp 6509 428309 0 0 3 0x14200 bored systq 44748 411630 0 0 2 0x40014200 softclock 88713 149682 0 0 3 0x40014200 idle0 1 157575 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 33199 (syz-executor.1) thread 0xffff800020ec7398 (218362) exclusive rwlock vmmaplk r = 0 (0xfffffd80641d3308) #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 (0xffffffff825086d8) #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 (0xffffffff82643ee0) #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 9544 6446K 7070K 78643K 13557 0 pcb 13 8K 8K 78643K 187 0 rtable 90 11K 13K 78643K 488 0 ifaddr 104 20K 21K 78643K 249 0 sysctl 1 1K 1K 78643K 3 0 counters 43 33K 34K 78643K 95 0 ioctlops 0 0K 4K 78643K 1547 0 iov 0 0K 32K 78643K 161 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 2030 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 25 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 267 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1370 0 sigio 1 0K 0K 78643K 148 0 proc 62 63K 95K 78643K 506 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 105 0 in_multi 97 4K 4K 78643K 212 0 ether_multi 1 0K 0K 78643K 38 0 mrt 0 0K 0K 78643K 12 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 333 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 164 122K 123K 78643K 5185 0 UVM aobj 59 4K 4K 78643K 65 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 158 0 NDP 15 0K 0K 78643K 47 0 temp 144 3043K 3111K 78643K 36302 0 kqueue 5 5K 9K 78643K 50 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 10 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 65 0 63 1 0 1 1 0 8 0 rtentry 112 70 0 38 2 0 2 2 0 8 0 unpcb 120 721 0 709 1 0 1 1 0 8 0 syncache 264 14 0 14 5 5 0 1 0 8 0 tcpqe 32 51 0 51 2 2 0 1 0 8 0 tcpcb 544 418 0 413 2 1 1 2 0 8 0 inpcb 280 1683 0 1674 6 5 1 2 0 8 0 rttmr 72 3 0 3 3 3 0 1 0 8 0 nd6 48 11 0 7 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 7 0 7 4 4 0 1 0 8 0 pfstscr 40 3 0 2 1 0 1 1 0 8 0 pffrag 232 6 0 6 2 2 0 1 0 482 0 pffrnode 88 6 0 6 2 2 0 1 0 8 0 pffrent 40 143 0 143 2 2 0 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 pfstitem 24 93 0 60 1 0 1 1 0 8 0 pfstkey 112 95 0 62 2 0 2 2 0 8 0 pfstate 328 93 0 60 4 0 4 4 0 8 0 pfrule 1360 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 256 348 0 171 13 1 12 13 0 8 0 art_table 32 349 0 171 2 0 2 2 0 8 0 art_node 16 69 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 26 0 12 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 265 0 255 1 0 1 1 0 8 0 shmpl 112 63 0 6 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3252 0 1850 89 0 89 89 0 8 0 ffsino 272 3252 0 1850 95 0 95 95 0 8 0 nchpl 144 5732 0 4120 60 0 60 60 0 8 0 uvmvnodes 72 3939 0 0 72 0 72 72 0 8 0 vnodes 208 3939 0 0 208 0 208 208 0 8 0 namei 1024 15639 0 15638 3 2 1 1 0 8 0 percpumem 16 58 0 26 1 0 1 1 0 8 0 vcpupl 1984 11 0 0 2 0 2 2 0 8 0 vmpool 560 15 0 4 1 0 1 1 0 8 0 scsiplug 64 2 0 2 1 1 0 1 0 8 0 scxspl 192 15380 0 15380 13 12 1 7 0 8 1 plimitpl 152 69 0 61 1 0 1 1 0 8 0 sigapl 424 1606 0 1554 6 0 6 6 0 8 0 futexpl 56 20393 0 20393 4 3 1 1 0 8 1 knotepl 112 122 0 103 1 0 1 1 0 8 0 kqueuepl 144 148 0 144 1 0 1 1 0 8 0 pipelkpl 48 245 0 235 1 0 1 1 0 8 0 pipepl 120 490 0 471 2 1 1 2 0 8 0 fdescpl 496 1570 0 1554 3 0 3 3 0 8 0 filepl 152 9340 0 9238 7 2 5 6 0 8 1 lockfpl 104 295 0 294 1 0 1 1 0 8 0 lockfspl 48 109 0 108 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 32 0 21 1 0 1 1 0 8 0 ucredpl 96 857 0 846 1 0 1 1 0 8 0 zombiepl 144 1558 0 1558 2 1 1 1 0 8 1 processpl 984 1606 0 1554 7 0 7 7 0 8 0 procpl 624 4337 0 4275 7 1 6 6 0 8 1 sosppl 128 23 0 23 6 6 0 1 0 8 0 sockpl 400 2479 0 2456 10 7 3 5 0 8 0 mcl64k 65536 19 0 0 3 0 3 3 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 12 0 0 2 0 2 2 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 159 0 0 19 0 19 19 0 8 0 mtagpl 80 248 0 0 6 0 6 6 0 8 0 mbufpl 256 987 0 0 60 0 60 60 0 8 0 bufpl 280 6248 0 145 436 0 436 436 0 8 0 anonpl 16 158965 0 144030 124 61 63 80 0 124 0 amapchunkpl 152 9445 0 9296 28 21 7 20 0 158 0 amappl16 192 8234 0 7397 98 55 43 55 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 24 0 19 1 0 1 1 0 8 0 amappl13 168 37 0 32 1 0 1 1 0 8 0 amappl12 160 6 0 4 2 1 1 1 0 8 0 amappl11 152 52 0 37 1 0 1 1 0 8 0 amappl10 144 1359 0 1349 1 0 1 1 0 8 0 amappl9 136 380 0 378 1 0 1 1 0 8 0 amappl8 128 391 0 345 2 0 2 2 0 8 0 amappl7 120 851 0 839 1 0 1 1 0 8 0 amappl6 112 30 0 26 1 0 1 1 0 8 0 amappl5 104 1484 0 1468 1 0 1 1 0 8 0 amappl4 96 499 0 470 1 0 1 1 0 8 0 amappl3 88 147 0 142 1 0 1 1 0 8 0 amappl2 80 11575 0 11503 2 0 2 2 0 8 0 amappl1 72 42004 0 41558 23 13 10 18 0 8 0 amappl 80 4591 0 4538 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 64 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1585 0 1558 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1585 0 1558 1 0 1 1 0 8 0 vmmpekpl 168 14051 0 14014 2 0 2 2 0 8 0 vmmpepl 168 193867 0 191825 155 60 95 111 0 357 1 vmsppl 368 1584 0 1558 3 0 3 3 0 8 0 pdppl 4096 3178 0 3127 8 1 7 7 0 8 0 pvpl 32 432540 0 414309 252 99 153 192 0 265 0 pmappl 232 1584 0 1558 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 323 0 16 9 0 9 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(ffffffff82640480,1) at pool_get+0x19c sys/kern/subr_pool.c:588 uvm_mapent_alloc(fffffd80641d32f0,0) at uvm_mapent_alloc+0x2d2 sys/uvm/uvm_map.c:1751 uvm_map_clip_end(fffffd80641d32f0,fffffd806b23f770,20010000) at uvm_map_clip_end+0x5d sys/uvm/uvm_map.c:4769 amap_copy(fffffd80641d32f0,fffffd806b23f770,2,1,20000000,20000001) at amap_copy+0x53b sys/uvm/uvm_amap.c:530 uvm_fault(fffffd80641d32f0,20000000,0,1) at uvm_fault+0xc3e uvmfault_amapcopy sys/uvm/uvm_fault.c:242 [inline] uvm_fault(fffffd80641d32f0,20000000,0,1) at uvm_fault+0xc3e sys/uvm/uvm_fault.c:559 pageflttrap(ffff800020ebb700,0) at pageflttrap+0x1b8 sys/arch/amd64/amd64/trap.c:221 kerntrap(ffff800020ebb700) at kerntrap+0xec sys/arch/amd64/amd64/trap.c:302 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b copyin() at copyin+0x4b sys_connect(ffff800020ec7398,ffff800020ebb8c8,ffff800020ebb910) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800020ebb990) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ebb990) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x730463fabd0, count: -14 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020e00ff0) 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(ffff800020e00ff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:182 end trace frame: 0x0, count: -5