uvm_fault(0xffffffff8253beb0, 0xffff800000a24000, 0, 1) -> e kernel: page fault trap, code=0 Stopped at uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic kernel page fault uvm_fault(0xffffffff8253beb0, 0xffff800000a24000, 0, 1) -> e uvm_unmap_remove(ffff800000a23f00,0,1000,ffff800016b384e0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a23f00,0,1000,ffff800016b384e0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff800016b38590, count: 0 ddb> trace uvm_unmap_remove(ffff800000a23f00,0,1000,ffff800016b384e0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a23f00,0,1000,ffff800016b384e0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_share(ffff800000a23f00,0,7,fffffd803f012440,20000000,200000) at uvm_share+0x55b vm_impl_init_vmx(ffff800015935a68,ffff8000ffff2c70) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a22800,ffff8000ffff2c70) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a22800,ffff8000ffff2c70) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd8036623750,c5005601,ffff800000a22800,1,fffffd803f7c69c0,ffff8000ffff2c70) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802d55a178,c5005601,ffff800000a22800,ffff8000ffff2c70) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000ffff2c70,ffff800016b38938,ffff800016b38980) at sys_ioctl+0x5b9 syscall(ffff800016b38a00) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb5ab2722000, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800016b384b0 rbx 0 rdx 0x35f rcx 0xffff800016b5b000 rax 0xffff800000a23f00 r8 0 r9 0x1 r10 0x26a6c96abce654c1 r11 0x39fc032b4c3a0ab0 r12 0 r13 0xfffffd802d5dd448 r14 0x1000 __ALIGN_SIZE r15 0xffff800000a23f00 rip 0xffffffff818c51eb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800016b38400 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=128801 stat=onproc flags process=0 proc=4000000 pri=65, usrpri=65, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2018,0xffffffff825770b0 process=0xffff8000ffff6d90 user=0xffff800016b33000, vmspace=0xfffffd803f012440 estcpu=15, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 18344 125093 7891 0 2 0 syz-executor.1 *18344 128801 7891 0 7 0x4000000 syz-executor.1 95359 111887 0 0 3 0x14200 bored sosplice 7891 407930 33014 0 3 0x82 nanosleep syz-executor.1 8743 318319 33014 0 2 0x2 syz-executor.0 33014 124054 93815 0 3 0x82 thrsleep syz-fuzzer 33014 436856 93815 0 2 0x4000482 syz-fuzzer 33014 162080 93815 0 3 0x4000082 thrsleep syz-fuzzer 33014 473923 93815 0 3 0x4000082 thrsleep syz-fuzzer 33014 173598 93815 0 3 0x4000082 thrsleep syz-fuzzer 33014 106255 93815 0 3 0x4000082 kqread syz-fuzzer 33014 13959 93815 0 3 0x4000082 thrsleep syz-fuzzer 93815 489367 80749 0 3 0x10008a pause ksh 80749 362089 68124 0 3 0x92 select sshd 16754 340561 1 0 3 0x100083 ttyin getty 68124 125000 1 0 3 0x80 select sshd 49434 509608 85167 73 3 0x100090 kqread syslogd 85167 507051 1 0 3 0x100082 netio syslogd 61167 482536 1 77 3 0x100090 poll dhclient 90770 209798 1 0 3 0x80 poll dhclient 96521 54287 0 0 2 0x14200 zerothread 49489 206716 0 0 3 0x14200 aiodoned aiodoned 83394 136631 0 0 3 0x14200 syncer update 14127 481059 0 0 3 0x14200 cleaner cleaner 52733 326302 0 0 3 0x14200 reaper reaper 40015 17083 0 0 3 0x14200 pgdaemon pagedaemon 54920 105088 0 0 3 0x14200 bored crynlk 61697 460017 0 0 3 0x14200 bored crypto 19295 262129 0 0 3 0x40014200 acpi0 acpi0 29533 229298 0 0 3 0x14200 bored softnet 89034 236957 0 0 3 0x14200 bored systqmp 70117 248988 0 0 3 0x14200 bored systq 40339 440911 0 0 3 0x40014200 bored softclock 47712 33900 0 0 3 0x40014200 idle0 78423 202055 0 0 3 0x14200 bored smr 1 518121 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9474 6332K 6655K 78643K 10674 0 pcb 13 8K 8K 78643K 37 0 rtable 103 3K 3K 78643K 209 0 ifaddr 53 11K 12K 78643K 60 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 22 0 iov 0 0K 12K 78643K 20 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 76K 77K 78643K 1270 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 3 0K 0K 78643K 4 0 sem 12 0K 1K 78643K 27 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 108 0 sigio 0 0K 0K 78643K 2 0 proc 48 38K 63K 78643K 374 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 12 0 in_multi 36 2K 2K 78643K 48 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 54 238K 238K 78643K 54 0 exec 0 0K 1K 78643K 191 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 106 21K 22K 78643K 1106 0 UVM aobj 8 2K 2K 78643K 10 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 24 0 NDP 9 0K 0K 78643K 13 0 temp 104 3011K 3075K 78643K 3435 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 0 1 0 1 1 0 8 0 rtpcb 80 27 0 25 1 0 1 1 0 8 0 rtentry 112 50 0 7 2 0 2 2 0 8 0 unpcb 120 78 0 70 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 504 0 504 1 1 0 1 0 8 0 tcpcb 544 84 0 80 1 0 1 1 0 8 0 inpcb 280 189 0 182 2 0 2 2 0 8 1 nd6 48 5 0 2 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 242 0 39 15 0 15 15 0 8 0 art_table 32 244 0 39 2 0 2 2 0 8 0 art_node 16 49 0 9 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0 semupl 112 6 0 6 1 0 1 1 0 8 1 semapl 112 25 0 15 1 0 1 1 0 8 0 shmpl 112 8 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1562 0 164 46 0 46 46 0 8 0 ffsino 240 1562 0 164 83 0 83 83 0 8 0 nchpl 144 1910 0 300 60 0 60 60 0 8 0 uvmvnodes 72 1634 0 0 30 0 30 30 0 8 0 vnodes 208 1634 0 0 86 0 86 86 0 8 0 namei 1024 4857 0 4856 1 0 1 1 0 8 0 vmpool 520 2 0 1 1 0 1 1 0 8 0 scxspl 192 5301 0 5301 8 1 7 7 0 8 7 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 432 279 0 266 2 0 2 2 0 8 0 futexpl 56 2621 0 2621 1 0 1 1 0 8 1 knotepl 112 59 0 40 1 0 1 1 0 8 0 kqueuepl 104 42 0 40 1 0 1 1 0 8 0 pipepl 128 214 0 195 2 0 2 2 0 8 1 fdescpl 424 280 0 266 2 0 2 2 0 8 0 filepl 120 1825 0 1727 5 0 5 5 0 8 2 lockfpl 104 24 0 23 1 0 1 1 0 8 0 lockfspl 48 11 0 10 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 19 0 9 1 0 1 1 0 8 0 ucredpl 96 140 0 133 1 0 1 1 0 8 0 zombiepl 144 266 0 266 1 0 1 1 0 8 1 processpl 864 295 0 266 4 0 4 4 0 8 0 procpl 632 416 0 380 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 384 296 0 279 5 0 5 5 0 8 3 mcl64k 65536 231 0 231 29 4 25 29 0 8 25 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 17 0 17 2 1 1 1 0 8 1 mcl2k 2048 67812 0 67757 21 8 13 20 0 8 5 mtagpl 80 6 0 2 2 1 1 1 0 8 0 mbufpl 256 108201 0 108064 21 4 17 20 0 8 8 bufpl 280 6406 0 1530 349 0 349 349 0 8 0 anonpl 16 46826 0 27220 85 1 84 84 0 62 4 amapchunkpl 152 1304 0 1157 9 2 7 9 0 158 1 amappl16 192 1585 0 495 57 0 57 57 0 8 2 amappl15 184 51 0 46 1 0 1 1 0 8 0 amappl14 176 63 0 59 1 0 1 1 0 8 0 amappl12 160 4 0 4 1 1 0 1 0 8 0 amappl11 152 94 0 79 1 0 1 1 0 8 0 amappl10 144 11 0 8 1 0 1 1 0 8 0 amappl9 136 560 0 557 1 0 1 1 0 8 0 amappl8 128 116 0 92 1 0 1 1 0 8 0 amappl7 120 90 0 79 1 0 1 1 0 8 0 amappl6 112 95 0 86 1 0 1 1 0 8 0 amappl5 104 132 0 123 1 0 1 1 0 8 0 amappl4 96 456 0 427 1 0 1 1 0 8 0 amappl3 88 193 0 183 1 0 1 1 0 8 0 amappl2 80 1452 0 1385 3 1 2 3 0 8 0 amappl1 72 14718 0 14291 26 16 10 20 0 8 0 amappl 80 639 0 596 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 9 0 2 1 0 1 1 0 8 0 uaddrrnd 24 282 0 266 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 282 0 266 1 0 1 1 0 8 0 vmmpekpl 168 6192 0 6171 2 0 2 2 0 8 0 vmmpepl 168 42083 0 39892 143 9 134 136 0 357 37 vmsppl 272 279 0 266 2 1 1 2 0 8 0 pdppl 4096 570 0 534 6 1 5 6 0 8 0 pvpl 32 149369 0 126762 195 0 195 195 0 265 10 pmappl 200 281 0 267 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 190 0 21 6 0 6 6 0 8 0