uvm_fault(0xffffffff82522438, 0xffff800000ac2000, 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(0xffffffff82522438, 0xffff800000ac2000, 0, 1) -> e uvm_unmap_remove(ffff800000ac1f00,0,80000000,ffff800015965938,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000ac1f00,0,80000000,ffff800015965938,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 end trace frame: 0xffff800015965970, count: 0 ddb> trace uvm_unmap_remove(ffff800000ac1f00,0,80000000,ffff800015965938,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:497 [inline] uvm_unmap_remove(ffff800000ac1f00,0,80000000,ffff800015965938,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2217 uvm_map_deallocate(ffff800000ac1f00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4233 vm_impl_init_vmx(ffff800015967c70,ffff8000ffff29f8) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000abc800,ffff8000ffff29f8) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1375 [inline] vm_create(ffff800000abc800,ffff8000ffff29f8) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd803db92750,c5005601,ffff800000abc800,1,fffffd803f7c68a0,ffff8000ffff29f8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd80303c9448,c5005601,ffff800000abc800,ffff8000ffff29f8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000ffff29f8,ffff800015965d18,ffff800015965d60) at sys_ioctl+0x5b9 syscall(ffff800015965de0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,2332405c0e0) at Xsyscall+0x128 end of kernel end trace frame: 0x2356007c2a0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff800015965920 rbx 0 rdx 0x1897 __ALIGN_SIZE+0x897 rcx 0xffff800014b49000 rax 0xffff800000ac1f00 r8 0x1 r9 0 r10 0xe73b43bfe628994f r11 0x3fbbd7d8a6425d62 r12 0 r13 0xfffffd802eb0d540 r14 0 r15 0xffff800000ac1f00 rip 0xffffffff8172244b uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800015965870 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.0) pid=246692 stat=onproc flags process=0 proc=4000000 pri=65, usrpri=65, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3b40,0xffffffff82585f08 process=0xffff8000ffff6370 user=0xffff800015960000, vmspace=0xfffffd803f014dd0 estcpu=15, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 94525 459639 75880 0 2 0 syz-executor.0 94525 49899 75880 0 2 0x4000000 syz-executor.0 *94525 246692 75880 0 7 0x4000000 syz-executor.0 20802 85959 29055 0 2 0x10 syz-executor.1 20802 333090 29055 0 3 0x4000090 msgwait syz-executor.1 20802 284715 29055 0 3 0x4000090 fsleep syz-executor.1 75880 171494 32457 0 3 0x82 nanosleep syz-executor.0 29055 513938 32457 0 3 0x82 nanosleep syz-executor.1 32457 295534 92514 0 3 0x82 thrsleep syz-fuzzer 32457 330340 92514 0 3 0x4000082 thrsleep syz-fuzzer 32457 405479 92514 0 3 0x4000082 thrsleep syz-fuzzer 32457 117776 92514 0 3 0x4000082 thrsleep syz-fuzzer 32457 121167 92514 0 3 0x4000082 thrsleep syz-fuzzer 32457 123251 92514 0 3 0x4000082 kqread syz-fuzzer 32457 457874 92514 0 3 0x4000082 thrsleep syz-fuzzer 92514 84292 27377 0 3 0x10008a pause ksh 27377 104209 59848 0 3 0x92 select sshd 51326 369678 1 0 3 0x100083 ttyin getty 59848 372309 1 0 3 0x80 select sshd 258 141038 94531 73 2 0x100090 syslogd 94531 363313 1 0 3 0x100082 netio syslogd 60206 171465 1 77 3 0x100090 poll dhclient 60296 171482 1 0 3 0x80 poll dhclient 84056 124714 0 0 2 0x14200 zerothread 8700 302317 0 0 3 0x14200 aiodoned aiodoned 71902 362549 0 0 3 0x14200 syncer update 3055 247204 0 0 3 0x14200 cleaner cleaner 64509 98448 0 0 3 0x14200 reaper reaper 55458 355483 0 0 3 0x14200 pgdaemon pagedaemon 45444 470128 0 0 3 0x14200 bored crynlk 11820 479278 0 0 3 0x14200 bored crypto 70352 84726 0 0 3 0x40014200 acpi0 acpi0 79371 472327 0 0 3 0x14200 bored softnet 36714 176659 0 0 3 0x14200 bored systqmp 29450 475468 0 0 3 0x14200 bored systq 11332 351599 0 0 3 0x40014200 bored softclock 59322 392058 0 0 3 0x40014200 idle0 86649 404046 0 0 3 0x14200 bored smr 1 195280 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 Kern Lim devbuf 9446 6314K 6963K 78643K 11054 0 0 pcb 13 8K 8K 78643K 53 0 0 rtable 108 3K 4K 78643K 215 0 0 ifaddr 35 10K 10K 78643K 48 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 20 0 0 iov 0 0K 12K 78643K 24 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1221 77K 77K 78643K 1432 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 3 0 0 VM map 3 0K 0K 78643K 3 0 0 sem 12 0K 0K 78643K 26 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 209 0 0 proc 48 38K 54K 78643K 374 0 0 subproc 32 2K 2K 78643K 34 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 18 0 0 in_multi 33 2K 2K 78643K 33 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 200 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 96 21K 21K 78643K 1307 0 0 UVM aobj 6 2K 2K 78643K 6 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 38 0 0 NDP 5 0K 0K 78643K 12 0 0 temp 120 3530K 3593K 78643K 3769 0 0 SYN cache 2 16K 16K 78643K 2 0 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 29 0 27 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 87 0 79 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 6879 0 6879 1 1 0 1 0 8 0 tcpcb 544 96 0 90 1 0 1 1 0 8 0 inpcb 280 190 0 181 1 0 1 1 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 212 0 0 14 0 14 14 0 8 0 art_table 32 213 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 1 0 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 24 0 14 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1732 0 340 46 0 46 46 0 8 0 ffsino 240 1732 0 340 83 0 83 83 0 8 0 nchpl 144 2260 0 648 61 0 61 61 0 8 0 uvmvnodes 72 1891 0 0 35 0 35 35 0 8 0 vnodes 208 1891 0 0 100 0 100 100 0 8 0 namei 1024 6507 0 6507 3 2 1 1 0 8 1 vmpool 520 1 0 0 1 0 1 1 0 8 0 scxspl 192 5713 0 5713 10 9 1 7 0 8 1 plimitpl 152 38 0 31 1 0 1 1 0 8 0 sigapl 432 380 0 366 2 0 2 2 0 8 0 futexpl 56 3889 0 3888 1 0 1 1 0 8 0 knotepl 112 70 0 51 1 0 1 1 0 8 0 kqueuepl 104 30 0 28 1 0 1 1 0 8 0 pipepl 112 218 0 199 2 1 1 1 0 8 0 fdescpl 424 381 0 366 2 0 2 2 0 8 0 filepl 120 2870 0 2772 4 0 4 4 0 8 1 lockfpl 104 9 0 8 1 0 1 1 0 8 0 lockfspl 48 5 0 4 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 908 0 899 1 0 1 1 0 8 0 zombiepl 144 366 0 366 3 2 1 1 0 8 1 processpl 864 395 0 366 4 0 4 4 0 8 0 procpl 632 630 0 591 4 0 4 4 0 8 0 sockpl 384 310 0 291 3 0 3 3 0 8 1 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl12k 12288 4 0 4 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 17 0 17 1 0 1 1 0 8 1 mcl4k 4096 19 0 19 2 1 1 1 0 8 1 mcl2k 2048 54235 0 54189 21 14 7 17 0 8 0 mtagpl 80 8 0 2 2 1 1 1 0 8 0 mbufpl 256 89508 0 89422 17 6 11 11 0 8 2 bufpl 256 6294 0 1515 299 0 299 299 0 8 0 anonpl 16 44415 0 30217 60 2 58 58 0 62 0 amapchunkpl 152 1657 0 1543 9 4 5 7 0 158 0 amappl16 192 1663 0 869 40 0 40 40 0 8 0 amappl14 176 33 0 29 2 1 1 1 0 8 0 amappl13 168 90 0 88 1 0 1 1 0 8 0 amappl12 160 8 0 5 1 0 1 1 0 8 0 amappl11 152 146 0 131 1 0 1 1 0 8 0 amappl10 144 9 0 9 1 1 0 1 0 8 0 amappl9 136 580 0 574 1 0 1 1 0 8 0 amappl8 128 146 0 125 1 0 1 1 0 8 0 amappl7 120 35 0 31 1 0 1 1 0 8 0 amappl6 112 153 0 143 1 0 1 1 0 8 0 amappl5 104 126 0 117 1 0 1 1 0 8 0 amappl4 96 602 0 572 1 0 1 1 0 8 0 amappl3 88 121 0 116 1 0 1 1 0 8 0 amappl2 80 2363 0 2287 4 2 2 3 0 8 0 amappl1 72 16111 0 15683 28 19 9 20 0 8 0 amappl 80 855 0 814 1 0 1 1 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 382 0 366 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 382 0 366 1 0 1 1 0 8 0 vmmpekpl 168 6585 0 6561 2 0 2 2 0 8 0 vmmpepl 168 51973 0 50014 164 39 125 132 0 357 39 vmsppl 272 380 0 366 2 1 1 2 0 8 0 pdppl 4096 770 0 732 6 1 5 6 0 8 0 pvpl 32 154276 0 137070 166 23 143 143 0 265 4 pmappl 200 381 0 366 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 456 0 27 13 0 13 13 0 8 0