uvm_fault(0xffffffff8254c078, 0xffff800000aef000, 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(0xffffffff8254c078, 0xffff800000aef000, 0, 1) -> e uvm_unmap_remove(ffff800000aeef00,0,71d000,ffff800017b48920,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000aeef00,0,71d000,ffff800017b48920,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2232 end trace frame: 0xffff800017b489d0, count: 0 ddb> trace uvm_unmap_remove(ffff800000aeef00,0,71d000,ffff800017b48920,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000aeef00,0,71d000,ffff800017b48920,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2232 uvm_share(ffff800000aeef00,0,7,fffffd803f011440,20000000,80000000) at uvm_share+0x55b vm_impl_init_vmx(ffff800014937248,ffff8000149156e0) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000ada800,ffff8000149156e0) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000ada800,ffff8000149156e0) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd80365bd410,c5005601,ffff800000ada800,1,fffffd803f7c6ba0,ffff8000149156e0) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802d5ce880,c5005601,ffff800000ada800,ffff8000149156e0) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000149156e0,ffff800017b48d78,ffff800017b48dc0) at sys_ioctl+0x5b9 syscall(ffff800017b48e40) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f561ab71f0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800017b488f0 rbx 0 rdx 0x661 rcx 0xffff800014f43000 rax 0xffff800000aeef00 r8 0 r9 0x1 r10 0x389ab066e97889d4 r11 0x438d535929d6539d r12 0 r13 0xfffffd802d60cd40 r14 0x10000 __ALIGN_SIZE+0xf000 r15 0xffff800000aeef00 rip 0xffffffff8190b8ab uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800017b48840 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=337232 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000149151d0,0xffff8000149147c0 process=0xffff8000ffff6a90 user=0xffff800017b43000, vmspace=0xfffffd803f011440 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 2655 116683 23563 0 2 0 syz-executor.1 2655 45317 23563 0 3 0x4000080 fsleep syz-executor.1 41186 49483 72256 0 2 0 syz-executor.0 *41186 337232 72256 0 7 0x4000000 syz-executor.0 86518 38349 0 0 3 0x14200 bored sosplice 72256 131930 45843 0 3 0x82 nanosleep syz-executor.0 23563 50520 45843 0 3 0x82 nanosleep syz-executor.1 45843 21529 5513 0 3 0x82 thrsleep syz-fuzzer 45843 487190 5513 0 3 0x4000082 thrsleep syz-fuzzer 45843 116399 5513 0 3 0x4000082 kqread syz-fuzzer 45843 210996 5513 0 3 0x4000082 thrsleep syz-fuzzer 45843 82226 5513 0 3 0x4000082 thrsleep syz-fuzzer 45843 67320 5513 0 3 0x4000082 thrsleep syz-fuzzer 45843 105495 5513 0 3 0x4000082 thrsleep syz-fuzzer 5513 515231 28499 0 3 0x10008a pause ksh 28499 329111 39682 0 3 0x92 select sshd 22332 306639 1 0 3 0x100083 ttyin getty 39682 407221 1 0 3 0x80 select sshd 94389 411533 29297 73 2 0x100010 syslogd 29297 162914 1 0 3 0x100082 netio syslogd 90702 507149 1 77 3 0x100090 poll dhclient 16119 242629 1 0 3 0x80 poll dhclient 79456 181222 0 0 2 0x14200 zerothread 76333 130103 0 0 3 0x14200 aiodoned aiodoned 89501 11903 0 0 3 0x14200 syncer update 13665 55176 0 0 3 0x14200 cleaner cleaner 68613 332164 0 0 3 0x14200 reaper reaper 76537 225637 0 0 3 0x14200 pgdaemon pagedaemon 87064 350200 0 0 3 0x14200 bored crynlk 446 249729 0 0 3 0x14200 bored crypto 52822 260774 0 0 3 0x40014200 acpi0 acpi0 37272 113843 0 0 3 0x14200 bored softnet 27750 492043 0 0 3 0x14200 bored systqmp 55659 445240 0 0 3 0x14200 bored systq 87065 342105 0 0 3 0x40014200 bored softclock 61531 365793 0 0 3 0x40014200 idle0 60556 450393 0 0 3 0x14200 bored smr 1 99256 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 9511 6482K 7133K 78643K 11462 0 pcb 13 8K 9K 78643K 121 0 rtable 109 4K 4K 78643K 343 0 ifaddr 85 17K 17K 78643K 127 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 35 0 iov 0 0K 16K 78643K 83 0 mount 1 1K 1K 78643K 1 0 vnodes 1242 78K 78K 78643K 1504 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 7 1K 1K 78643K 8 0 sem 12 0K 1K 78643K 105 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 320 0 sigio 0 0K 0K 78643K 10 0 proc 49 38K 63K 78643K 397 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 17 0 in_multi 85 3K 3K 78643K 107 0 ether_multi 1 0K 0K 78643K 1 0 mrt 0 0K 0K 78643K 8 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 229 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 115 54K 54K 78643K 1623 0 UVM aobj 18 2K 2K 78643K 20 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 74 0 NDP 12 0K 0K 78643K 26 0 temp 135 3559K 3625K 78643K 18467 0 kqueue 0 0K 0K 78643K 4 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 11 0 5 1 0 1 1 0 8 0 rtpcb 96 50 0 48 1 0 1 1 0 8 0 rtentry 112 75 0 32 2 0 2 2 0 8 0 unpcb 120 986 0 976 3 2 1 3 0 8 0 syncache 280 6 0 6 2 1 1 1 0 8 1 tcpqe 32 189 0 189 1 1 0 1 0 8 0 tcpcb 640 121 0 117 2 1 1 2 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 90 0 90 1 1 0 1 0 8 0 inpcb 280 778 0 771 2 0 2 2 0 8 1 rttmr 72 4 0 4 1 1 0 1 0 8 0 nd6 48 7 0 4 1 0 1 1 0 8 0 ppxss 1128 6 0 6 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 304 0 99 16 2 14 15 0 8 0 art_table 32 306 0 99 2 0 2 2 0 8 0 art_node 16 74 0 36 1 0 1 1 0 8 0 sysvmsgpl 40 75 0 49 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 103 0 93 1 0 1 1 0 8 0 shmpl 112 18 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1888 0 491 46 0 46 46 0 8 0 ffsino 240 1888 0 491 83 0 83 83 0 8 0 nchpl 144 2579 0 2115 60 32 28 60 0 8 8 uvmvnodes 72 2142 0 0 39 0 39 39 0 8 0 vnodes 208 2142 0 0 113 0 113 113 0 8 0 namei 1024 7431 0 7431 1 0 1 1 0 8 1 vcpupl 1984 4 0 0 1 0 1 1 0 8 0 vmpool 520 6 0 1 1 0 1 1 0 8 0 scxspl 208 7115 0 7115 9 7 2 7 0 8 2 plimitpl 152 30 0 23 1 0 1 1 0 8 0 sigapl 432 490 0 476 2 0 2 2 0 8 0 futexpl 56 10723 0 10722 1 0 1 1 0 8 0 knotepl 112 97 0 78 1 0 1 1 0 8 0 kqueuepl 104 124 0 122 1 0 1 1 0 8 0 pipepl 128 404 0 385 2 0 2 2 0 8 1 fdescpl 424 491 0 476 2 0 2 2 0 8 0 filepl 120 4697 0 4599 8 3 5 8 0 8 2 lockfpl 104 87 0 86 1 0 1 1 0 8 0 lockfspl 48 38 0 37 1 0 1 1 0 8 0 sessionpl 128 17 0 7 1 0 1 1 0 8 0 pgrppl 48 57 0 47 1 0 1 1 0 8 0 ucredpl 96 448 0 441 1 0 1 1 0 8 0 zombiepl 144 476 0 476 1 0 1 1 0 8 1 processpl 896 506 0 476 4 0 4 4 0 8 0 procpl 648 917 0 879 4 0 4 4 0 8 0 sosppl 144 10 0 10 2 1 1 1 0 8 1 sockpl 384 1843 0 1824 9 4 5 9 0 8 1 mcl64k 65536 37 0 37 1 0 1 1 0 8 1 mcl16k 16384 5 0 5 1 0 1 1 0 8 1 mcl12k 12288 10 0 10 1 0 1 1 0 8 1 mcl9k 9216 7 0 7 1 0 1 1 0 8 1 mcl8k 8192 13 0 13 1 0 1 1 0 8 1 mcl4k 4096 39 0 39 2 1 1 1 0 8 1 mcl2k2 2112 9 0 9 1 0 1 1 0 8 1 mcl2k 2048 66120 0 66090 16 11 5 12 0 8 0 mtagpl 80 18 0 2 2 1 1 1 0 8 0 mbufpl 256 108360 0 108192 26 9 17 22 0 8 0 bufpl 280 6807 0 1956 347 0 347 347 0 8 0 anonpl 16 59557 0 39438 85 3 82 84 0 62 1 amapchunkpl 152 2208 0 2051 9 2 7 9 0 158 0 amappl16 192 2520 0 1411 58 1 57 58 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 191 0 183 1 0 1 1 0 8 0 amappl12 160 16 0 14 2 1 1 1 0 8 0 amappl11 152 49 0 37 1 0 1 1 0 8 0 amappl10 144 154 0 150 1 0 1 1 0 8 0 amappl9 136 564 0 559 1 0 1 1 0 8 0 amappl8 128 160 0 128 2 0 2 2 0 8 0 amappl7 120 174 0 170 1 0 1 1 0 8 0 amappl6 112 55 0 46 1 0 1 1 0 8 0 amappl5 104 138 0 127 1 0 1 1 0 8 0 amappl4 96 705 0 675 1 0 1 1 0 8 0 amappl3 88 129 0 122 1 0 1 1 0 8 0 amappl2 80 3141 0 3067 3 1 2 3 0 8 0 amappl1 72 18239 0 17807 26 16 10 20 0 8 0 amappl 80 1159 0 1110 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 19 0 2 1 0 1 1 0 8 0 uaddrrnd 24 497 0 476 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 497 0 476 1 0 1 1 0 8 0 vmmpekpl 168 7522 0 7493 2 0 2 2 0 8 0 vmmpepl 168 65301 0 63000 134 21 113 129 0 357 12 vmsppl 272 490 0 476 2 1 1 2 0 8 0 pdppl 4096 1000 0 958 7 1 6 6 0 8 0 pvpl 32 188761 0 165494 196 2 194 196 0 265 5 pmappl 200 496 0 477 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 163 0 27 5 0 5 5 0 8 0