uvm_fault(0xffffffff82516880, 0xffff800000aad000, 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(0xffffffff82516880, 0xffff800000aad000, 0, 1) -> e uvm_unmap_remove(ffff800000aacf00,0,80000000,ffff80001796fe78,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:496 [inline] uvm_unmap_remove(ffff800000aacf00,0,80000000,ffff80001796fe78,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2215 end trace frame: 0xffff80001796feb0, count: 0 ddb> trace uvm_unmap_remove(ffff800000aacf00,0,80000000,ffff80001796fe78,1,0) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:496 [inline] uvm_unmap_remove(ffff800000aacf00,0,80000000,ffff80001796fe78,1,0) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2215 uvm_map_deallocate(ffff800000aacf00) at uvm_map_deallocate+0x6e sys/uvm/uvm_map.c:4231 vm_impl_init_vmx(ffff800017953658,ffff8000ffff2ee8) at vm_impl_init_vmx+0x1e0 vm_create(ffff800000a8c800,ffff8000ffff2ee8) at vm_create+0x182 vm_impl_init sys/arch/amd64/amd64/vmm.c:1376 [inline] vm_create(ffff800000a8c800,ffff8000ffff2ee8) at vm_create+0x182 sys/arch/amd64/amd64/vmm.c:1164 VOP_IOCTL(fffffd80361b7680,c5005601,ffff800000a8c800,1,fffffd803f7c6a20,ffff8000ffff2ee8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802ecc96a0,c5005601,ffff800000a8c800,ffff8000ffff2ee8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524 sys_ioctl(ffff8000ffff2ee8,ffff800017970258,ffff8000179702a0) at sys_ioctl+0x5b9 syscall(ffff800017970320) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,ffffffffffffff59,0,3,cca8eb020e0) at Xsyscall+0x128 end of kernel end trace frame: 0xccd0ae85c70, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001796fe60 rbx 0 rdx 0x16fb __ALIGN_SIZE+0x6fb rcx 0xffff800014b21000 rax 0xffff800000aacf00 r8 0x1 r9 0 r10 0x228d667e7db534f5 r11 0x9e444c3eedd34cc1 r12 0 r13 0xfffffd802ed132f8 r14 0 r15 0xffff800000aacf00 rip 0xffffffff81dfd0bb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001796fdb0 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=391888 stat=onproc flags process=0 proc=4000000 pri=75, usrpri=75, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff38c8,0xffffffff82555660 process=0xffff8000ffff6d90 user=0xffff80001796b000, vmspace=0xfffffd803f013000 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 95281 308210 96210 0 2 0 syz-executor.0 95281 248472 96210 0 3 0x4000080 fsleep syz-executor.0 48478 298247 24406 0 2 0 syz-executor.1 48478 7607 24406 0 3 0x4000080 fsleep syz-executor.1 *48478 391888 24406 0 7 0x4000000 syz-executor.1 96210 156701 31022 0 3 0x82 nanosleep syz-executor.0 24406 348727 31022 0 3 0x82 nanosleep syz-executor.1 31022 424759 40771 0 3 0x82 thrsleep syz-fuzzer 31022 92723 40771 0 3 0x4000082 thrsleep syz-fuzzer 31022 19094 40771 0 3 0x4000082 thrsleep syz-fuzzer 31022 475688 40771 0 3 0x4000082 thrsleep syz-fuzzer 31022 376817 40771 0 3 0x4000082 thrsleep syz-fuzzer 31022 470053 40771 0 3 0x4000082 kqread syz-fuzzer 31022 223038 40771 0 3 0x4000082 thrsleep syz-fuzzer 40771 425397 91175 0 3 0x10008a pause ksh 91175 522427 46261 0 3 0x92 select sshd 27753 322336 1 0 3 0x100083 ttyin getty 46261 484485 1 0 3 0x80 select sshd 78204 307025 60750 73 2 0x100010 syslogd 60750 229656 1 0 3 0x100082 netio syslogd 99870 310457 1 77 3 0x100090 poll dhclient 9351 175839 1 0 3 0x80 poll dhclient 83792 270690 0 0 2 0x14200 zerothread 45956 185678 0 0 3 0x14200 aiodoned aiodoned 1191 330366 0 0 3 0x14200 syncer update 12789 439811 0 0 3 0x14200 cleaner cleaner 99397 35427 0 0 3 0x14200 reaper reaper 88079 455504 0 0 3 0x14200 pgdaemon pagedaemon 76608 228900 0 0 3 0x14200 bored crynlk 85078 507591 0 0 3 0x14200 bored crypto 2988 517279 0 0 3 0x40014200 acpi0 acpi0 70756 41875 0 0 3 0x14200 bored softnet 71601 87175 0 0 3 0x14200 bored systqmp 67860 478150 0 0 3 0x14200 bored systq 7095 478635 0 0 3 0x40014200 bored softclock 17452 225821 0 0 3 0x40014200 idle0 69640 6607 0 0 3 0x14200 bored smr 1 284616 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 9463 6444K 6762K 78643K 10958 0 0 pcb 13 8K 8K 78643K 252 0 0 rtable 108 3K 4K 78643K 209 0 0 ifaddr 39 10K 11K 78643K 47 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 1 2K 2K 78643K 25 0 0 iov 0 0K 32K 78643K 32 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1216 76K 77K 78643K 1357 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 4 0 0 VM map 3 0K 0K 78643K 6 0 0 sem 12 0K 0K 78643K 66 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 201 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 48 38K 54K 78643K 370 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 21 0 0 in_multi 33 2K 2K 78643K 53 0 0 ether_multi 1 0K 0K 78643K 4 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 54 238K 238K 78643K 54 0 0 exec 0 0K 1K 78643K 208 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 87 20K 21K 78643K 1277 0 0 UVM aobj 10 2K 2K 78643K 13 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 34 0 0 NDP 6 0K 0K 78643K 12 0 0 temp 128 3534K 3598K 78643K 4036 0 0 kqueue 0 0K 0K 78643K 2 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 21 0 19 1 0 1 1 0 8 0 rtentry 112 45 0 1 2 0 2 2 0 8 0 unpcb 120 73 0 65 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 2516 0 2516 1 1 0 1 0 8 0 tcpcb 544 60 0 56 1 0 1 1 0 8 0 inpcb 280 359 0 352 2 0 2 2 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 213 0 0 14 0 14 14 0 8 0 art_table 32 214 0 0 2 0 2 2 0 8 0 art_node 16 44 0 4 1 0 1 1 0 8 0 semapl 112 64 0 54 1 0 1 1 0 8 0 shmpl 112 11 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1646 0 250 46 0 46 46 0 8 0 ffsino 240 1646 0 250 83 0 83 83 0 8 0 nchpl 144 2184 0 572 60 0 60 60 0 8 0 uvmvnodes 72 1802 0 0 33 0 33 33 0 8 0 vnodes 208 1802 0 0 95 0 95 95 0 8 0 namei 1024 5497 0 5497 3 2 1 1 0 8 1 vmpool 520 4 0 3 1 0 1 1 0 8 0 scsiplug 64 2 0 2 1 0 1 1 0 8 1 scxspl 192 5902 0 5902 10 8 2 7 0 8 2 plimitpl 152 32 0 25 1 0 1 1 0 8 0 sigapl 432 372 0 358 2 0 2 2 0 8 0 futexpl 56 4071 0 4069 1 0 1 1 0 8 0 knotepl 112 72 0 53 1 0 1 1 0 8 0 kqueuepl 104 46 0 44 1 0 1 1 0 8 0 pipepl 112 186 0 167 2 1 1 1 0 8 0 fdescpl 424 373 0 358 2 0 2 2 0 8 0 filepl 120 2242 0 2144 4 0 4 4 0 8 1 lockfpl 104 56 0 55 1 0 1 1 0 8 0 lockfspl 48 21 0 20 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 96 190 0 183 1 0 1 1 0 8 0 zombiepl 144 358 0 358 3 2 1 1 0 8 1 processpl 864 387 0 358 4 0 4 4 0 8 0 procpl 632 609 0 571 4 0 4 4 0 8 0 sockpl 384 462 0 445 3 0 3 3 0 8 1 mcl64k 65536 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 3 0 3 1 1 0 1 0 8 0 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 20 0 20 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 60206 0 60160 17 10 7 13 0 8 0 mtagpl 80 4 0 2 2 1 1 1 0 8 0 mbufpl 256 97120 0 97038 11 2 9 9 0 8 1 bufpl 256 6517 0 1657 304 0 304 304 0 8 0 anonpl 16 48861 0 35353 73 2 71 71 0 62 16 amapchunkpl 152 1569 0 1458 10 2 8 8 0 158 3 amappl16 192 1818 0 1071 50 4 46 50 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 128 0 122 2 1 1 1 0 8 0 amappl12 160 12 0 9 1 0 1 1 0 8 0 amappl11 152 43 0 32 1 0 1 1 0 8 0 amappl10 144 8 0 8 2 2 0 1 0 8 0 amappl9 136 650 0 641 1 0 1 1 0 8 0 amappl8 128 225 0 203 1 0 1 1 0 8 0 amappl7 120 34 0 31 1 0 1 1 0 8 0 amappl6 112 70 0 60 1 0 1 1 0 8 0 amappl5 104 143 0 133 1 0 1 1 0 8 0 amappl4 96 580 0 555 1 0 1 1 0 8 0 amappl3 88 205 0 199 1 0 1 1 0 8 0 amappl2 80 2204 0 2128 4 2 2 3 0 8 0 amappl1 72 16213 0 15788 27 18 9 20 0 8 0 amappl 80 826 0 787 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 12 0 3 1 0 1 1 0 8 0 uaddrrnd 24 377 0 358 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 377 0 358 1 0 1 1 0 8 0 vmmpekpl 168 6524 0 6499 2 0 2 2 0 8 0 vmmpepl 168 50757 0 48859 122 28 94 100 0 357 11 vmsppl 272 372 0 358 2 1 1 2 0 8 0 pdppl 4096 760 0 722 6 1 5 6 0 8 0 pvpl 32 157650 0 141096 178 7 171 171 0 265 37 pmappl 200 376 0 361 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 451 0 19 13 0 13 13 0 8 0