uvm_fault(0xffffffff82538f58, 0xffff800000a08000, 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(0xffffffff82538f58, 0xffff800000a08000, 0, 1) -> e uvm_unmap_remove(ffff800000a07f00,0,1000,ffff80001593bc90,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a07f00,0,1000,ffff80001593bc90,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 end trace frame: 0xffff80001593bd40, count: 0 ddb> trace uvm_unmap_remove(ffff800000a07f00,0,1000,ffff80001593bc90,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a07f00,0,1000,ffff80001593bc90,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2225 uvm_share(ffff800000a07f00,0,7,fffffd803f012550,20000000,200000) at uvm_share+0x55b vm_impl_init_vmx(ffff80001593fa68,ffff8000ffff2ee8) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a18800,ffff8000ffff2ee8) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a18800,ffff8000ffff2ee8) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd803654a270,c5005601,ffff800000a18800,1,fffffd803f7c6840,ffff8000ffff2ee8) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd803620cd28,c5005601,ffff800000a18800,ffff8000ffff2ee8) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff8000ffff2ee8,ffff80001593c0e8,ffff80001593c130) at sys_ioctl+0x5b9 syscall(ffff80001593c1b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6890e882b00, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001593bc60 rbx 0 rdx 0x66a rcx 0xffff800016b63000 rax 0xffff800000a07f00 r8 0 r9 0x1 r10 0x3be67a26b4dc750f r11 0x481509917d4ce84b r12 0 r13 0xfffffd802e01e7f8 r14 0x1000 __ALIGN_SIZE r15 0xffff800000a07f00 rip 0xffffffff815649cb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001593bbb0 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=478577 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff2780,0xffffffff82545ea8 process=0xffff8000ffff70f0 user=0xffff800015937000, vmspace=0xfffffd803f012550 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90923 522395 24543 0 2 0 syz-executor.1 *90923 478577 24543 0 7 0x4000000 syz-executor.1 24543 377702 16095 0 2 0x482 syz-executor.1 39510 272035 16095 0 2 0x2 syz-executor.0 16095 175070 2375 0 3 0x82 thrsleep syz-fuzzer 16095 356489 2375 0 3 0x4000082 nanosleep syz-fuzzer 16095 456504 2375 0 3 0x4000082 thrsleep syz-fuzzer 16095 364336 2375 0 3 0x4000082 thrsleep syz-fuzzer 16095 366780 2375 0 3 0x4000082 thrsleep syz-fuzzer 16095 114898 2375 0 3 0x4000082 thrsleep syz-fuzzer 16095 372485 2375 0 3 0x4000082 thrsleep syz-fuzzer 16095 52190 2375 0 3 0x4000082 kqread syz-fuzzer 2375 439794 92994 0 3 0x10008a pause ksh 92994 430580 81206 0 3 0x92 select sshd 19157 209290 1 0 3 0x100083 ttyin getty 81206 146083 1 0 3 0x80 select sshd 4768 478280 97952 73 3 0x100090 kqread syslogd 97952 122147 1 0 3 0x100082 netio syslogd 59827 418260 1 77 3 0x100090 poll dhclient 37483 424730 1 0 3 0x80 poll dhclient 10804 476404 0 0 2 0x14200 zerothread 31667 487615 0 0 3 0x14200 aiodoned aiodoned 99530 119186 0 0 3 0x14200 syncer update 36937 244769 0 0 3 0x14200 cleaner cleaner 54674 278057 0 0 3 0x14200 reaper reaper 78174 116903 0 0 3 0x14200 pgdaemon pagedaemon 60484 267950 0 0 3 0x14200 bored crynlk 12941 61698 0 0 3 0x14200 bored crypto 37864 377478 0 0 3 0x40014200 acpi0 acpi0 20749 415164 0 0 3 0x14200 bored softnet 21580 75726 0 0 3 0x14200 bored systqmp 14536 346847 0 0 3 0x14200 bored systq 90867 91996 0 0 3 0x40014200 bored softclock 34355 275822 0 0 3 0x40014200 idle0 84049 153568 0 0 3 0x14200 bored smr 1 262473 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 9456 6326K 6581K 78643K 10599 0 pcb 13 8K 8K 78643K 27 0 rtable 108 3K 4K 78643K 212 0 ifaddr 46 11K 11K 78643K 53 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 16 0 iov 0 0K 16K 78643K 23 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1242 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 3 0 sem 12 0K 1K 78643K 16 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 5 13K 25K 78643K 63 0 proc 47 38K 63K 78643K 361 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 5 0 in_multi 40 2K 2K 78643K 47 0 ether_multi 1 0K 0K 78643K 3 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 36 159K 159K 78643K 36 0 exec 0 0K 1K 78643K 181 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 103 21K 22K 78643K 974 0 UVM aobj 5 2K 2K 78643K 5 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 12 0 NDP 6 0K 0K 78643K 11 0 temp 81 3007K 3071K 78643K 3298 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 45 0 1 2 0 2 2 0 8 0 unpcb 120 61 0 53 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 326 0 326 1 0 1 1 0 8 1 tcpcb 544 26 0 22 1 0 1 1 0 8 0 ipq 40 2 0 2 1 0 1 1 0 8 1 ipqe 40 6 0 6 1 0 1 1 0 8 1 inpcb 280 76 0 69 1 0 1 1 0 8 0 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 256 212 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 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1468 0 65 46 0 46 46 0 8 0 ffsino 240 1468 0 65 83 0 83 83 0 8 0 nchpl 144 1741 0 126 60 0 60 60 0 8 0 uvmvnodes 72 1523 0 0 28 0 28 28 0 8 0 vnodes 208 1523 0 0 81 0 81 81 0 8 0 namei 1024 4353 0 4353 1 0 1 1 0 8 1 vmpool 520 1 0 0 1 0 1 1 0 8 0 scxspl 192 4853 0 4853 8 1 7 7 0 8 7 plimitpl 152 18 0 11 1 0 1 1 0 8 0 sigapl 432 234 0 221 2 0 2 2 0 8 0 futexpl 56 988 0 988 1 0 1 1 0 8 1 knotepl 112 63 0 44 1 0 1 1 0 8 0 kqueuepl 104 17 0 15 1 0 1 1 0 8 0 pipepl 128 186 0 167 2 0 2 2 0 8 1 fdescpl 424 235 0 221 2 0 2 2 0 8 0 filepl 120 1384 0 1288 4 0 4 4 0 8 1 lockfpl 104 13 0 12 1 0 1 1 0 8 0 lockfspl 48 6 0 5 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 96 157 0 150 1 0 1 1 0 8 0 zombiepl 144 221 0 221 1 0 1 1 0 8 1 processpl 864 249 0 221 4 0 4 4 0 8 0 procpl 632 290 0 254 4 0 4 4 0 8 0 sockpl 384 164 0 147 3 0 3 3 0 8 1 mcl64k 65536 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 2 0 2 1 0 1 1 0 8 1 mcl4k 4096 14 0 14 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 68069 0 68010 23 7 16 19 0 8 8 mtagpl 80 2 0 2 1 1 0 1 0 8 0 mbufpl 256 107860 0 107762 14 3 11 11 0 8 1 bufpl 280 6256 0 1385 349 0 349 349 0 8 0 anonpl 16 40785 0 22563 76 2 74 74 0 62 0 amapchunkpl 152 1170 0 1022 11 0 11 11 0 158 5 amappl16 192 1203 0 201 51 0 51 51 0 8 0 amappl15 184 97 0 87 1 0 1 1 0 8 0 amappl14 176 25 0 23 2 1 1 1 0 8 0 amappl12 160 5 0 4 2 1 1 1 0 8 0 amappl11 152 46 0 35 1 0 1 1 0 8 0 amappl10 144 9 0 8 1 0 1 1 0 8 0 amappl9 136 559 0 556 1 0 1 1 0 8 0 amappl8 128 119 0 93 2 0 2 2 0 8 1 amappl7 120 98 0 87 1 0 1 1 0 8 0 amappl6 112 53 0 47 1 0 1 1 0 8 0 amappl5 104 138 0 128 1 0 1 1 0 8 0 amappl4 96 444 0 417 1 0 1 1 0 8 0 amappl3 88 113 0 106 1 0 1 1 0 8 0 amappl2 80 1120 0 1047 3 1 2 3 0 8 0 amappl1 72 14044 0 13621 26 10 16 20 0 8 6 amappl 80 511 0 469 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 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 236 0 221 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 236 0 221 1 0 1 1 0 8 0 vmmpekpl 168 5833 0 5809 2 0 2 2 0 8 0 vmmpepl 168 36418 0 34311 137 10 127 127 0 357 35 vmsppl 272 234 0 221 2 0 2 2 0 8 1 pdppl 4096 478 0 442 6 0 6 6 0 8 1 pvpl 32 132040 0 110851 177 0 177 177 0 265 6 pmappl 200 235 0 221 1 0 1 1 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 154 0 13 5 0 5 5 0 8 0