uvm_fault(0xffffffff82512c50, 0xffff800000a89000, 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(0xffffffff82512c50, 0xffff800000a89000, 0, 1) -> e uvm_unmap_remove(ffff800000a88f00,0,1ef000,ffff80001596d5d0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a88f00,0,1ef000,ffff80001596d5d0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2232 end trace frame: 0xffff80001596d680, count: 0 ddb> trace uvm_unmap_remove(ffff800000a88f00,0,1ef000,ffff80001596d5d0,0,1) at uvm_unmap_remove+0x3eb uvmspace_dused sys/uvm/uvm_map.c:501 [inline] uvm_unmap_remove(ffff800000a88f00,0,1ef000,ffff80001596d5d0,0,1) at uvm_unmap_remove+0x3eb sys/uvm/uvm_map.c:2232 uvm_share(ffff800000a88f00,0,7,fffffd803f012550,20000000,200000) at uvm_share+0x55b vm_impl_init_vmx(ffff800015957040,ffff800014914f48) at vm_impl_init_vmx+0xf1 sys/arch/amd64/amd64/vmm.c:1269 vm_create(ffff800000a83800,ffff800014914f48) at vm_create+0x193 vm_impl_init sys/arch/amd64/amd64/vmm.c:1384 [inline] vm_create(ffff800000a83800,ffff800014914f48) at vm_create+0x193 sys/arch/amd64/amd64/vmm.c:1173 VOP_IOCTL(fffffd80365bc820,c5005601,ffff800000a83800,1,fffffd803f7c6ae0,ffff800014914f48) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291 vn_ioctl(fffffd802d750798,c5005601,ffff800000a83800,ffff800014914f48) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:533 sys_ioctl(ffff800014914f48,ffff80001596da28,ffff80001596da70) at sys_ioctl+0x5b9 syscall(ffff80001596daf0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xec226f2fda0, count: -9 ddb> show registers rdi 0 rsi 0 rbp 0xffff80001596d5a0 rbx 0 rdx 0x27ef __ALIGN_SIZE+0x17ef rcx 0xffff800014943000 rax 0xffff800000a88f00 r8 0 r9 0x1 r10 0xa1f0fde6a561114b r11 0x62fc709c4b3e27c8 r12 0 r13 0xfffffd802d7ece88 r14 0x10000 __ALIGN_SIZE+0xf000 r15 0xffff800000a88f00 rip 0xffffffff81fdb9fb uvm_unmap_remove+0x3eb cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001596d4f0 ss 0x10 uvm_unmap_remove+0x3eb: movq 0x100(%r15),%r15 ddb> show proc PROC (syz-executor.1) pid=257195 stat=onproc flags process=0 proc=4000000 pri=83, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff800014915458,0xffff8000149147c0 process=0xffff8000ffff7890 user=0xffff800015968000, vmspace=0xfffffd803f012550 estcpu=33, cpticks=15, pctcpu=0.39 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 96242 355695 0 0 3 0x14200 acct acct 71625 399356 66855 0 2 0 syz-executor.1 *71625 257195 66855 0 7 0x4000000 syz-executor.1 71625 336520 66855 0 3 0x4000080 fsleep syz-executor.1 96837 303700 87805 0 2 0 syz-executor.0 96837 447373 87805 0 3 0x4000080 fsleep syz-executor.0 96837 260352 87805 0 3 0x4000080 fsleep syz-executor.0 50472 486732 0 0 3 0x14200 bored sosplice 87805 210744 7575 0 3 0x82 nanosleep syz-executor.0 66855 285468 7575 0 3 0x82 nanosleep syz-executor.1 7575 307203 42177 0 3 0x82 kqread syz-fuzzer 7575 231939 42177 0 3 0x4000082 thrsleep syz-fuzzer 7575 339245 42177 0 3 0x4000082 thrsleep syz-fuzzer 7575 152359 42177 0 3 0x4000082 thrsleep syz-fuzzer 7575 315631 42177 0 3 0x4000082 thrsleep syz-fuzzer 7575 83605 42177 0 3 0x4000082 thrsleep syz-fuzzer 7575 66046 42177 0 3 0x4000082 thrsleep syz-fuzzer 42177 155578 3797 0 3 0x10008a pause ksh 3797 7161 57393 0 3 0x92 select sshd 97599 460718 1 0 3 0x100083 ttyin getty 57393 170832 1 0 3 0x80 select sshd 76983 264011 77784 73 3 0x100090 kqread syslogd 77784 203563 1 0 3 0x100082 netio syslogd 79790 153850 1 77 3 0x100090 poll dhclient 18512 175282 1 0 3 0x80 poll dhclient 20866 256481 0 0 2 0x14200 zerothread 45492 480531 0 0 3 0x14200 aiodoned aiodoned 55175 51550 0 0 3 0x14200 syncer update 94566 11128 0 0 3 0x14200 cleaner cleaner 38360 59519 0 0 3 0x14200 reaper reaper 90147 397166 0 0 3 0x14200 pgdaemon pagedaemon 63471 392155 0 0 3 0x14200 bored crynlk 23987 215589 0 0 3 0x14200 bored crypto 40340 408627 0 0 3 0x40014200 acpi0 acpi0 12476 105646 0 0 3 0x14200 bored softnet 10955 330521 0 0 3 0x14200 bored systqmp 96737 412566 0 0 3 0x14200 bored systq 1507 226758 0 0 3 0x40014200 bored softclock 19603 330013 0 0 3 0x40014200 idle0 69954 219482 0 0 3 0x14200 bored smr 1 30785 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 9481 6337K 7503K 78643K 11848 0 pcb 13 8K 8K 78643K 49 0 rtable 107 3K 3K 78643K 240 0 ifaddr 64 13K 13K 78643K 83 0 counters 19 16K 16K 78643K 19 0 ioctlops 1 2K 2K 78643K 29 0 iov 0 0K 16K 78643K 55 0 mount 1 1K 1K 78643K 1 0 vnodes 1231 77K 77K 78643K 1547 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 21 0 VM map 7 1K 1K 78643K 8 0 sem 12 0K 0K 78643K 158 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1794 195K 288K 78643K 12646 0 file desc 6 17K 25K 78643K 229 0 proc 48 38K 63K 78643K 373 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 10 0 in_multi 58 3K 3K 78643K 62 0 ether_multi 1 0K 0K 78643K 2 0 mrt 0 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 48 212K 212K 78643K 48 0 exec 0 0K 1K 78643K 209 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 113 54K 58K 78643K 1388 0 UVM aobj 8 2K 2K 78643K 64 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 31 0 NDP 9 0K 0K 78643K 17 0 temp 108 3555K 3619K 78643K 20573 0 kqueue 0 0K 0K 78643K 1 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 8 0 1 1 0 1 1 0 8 0 rtpcb 96 63 0 61 1 0 1 1 0 8 0 rtentry 112 49 0 4 2 0 2 2 0 8 0 unpcb 120 128 0 119 1 0 1 1 0 8 0 syncache 280 6 0 6 2 2 0 1 0 8 0 tcpqe 32 113 0 113 1 1 0 1 0 8 0 tcpcb 640 46 0 42 1 0 1 1 0 8 0 inpcb 280 307 0 299 3 2 1 2 0 8 0 nd6 48 4 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 221 0 2 14 0 14 14 0 8 0 art_table 32 222 0 2 2 0 2 2 0 8 0 art_node 16 48 0 7 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 16 1 0 1 1 0 8 0 semupl 112 4 0 4 2 1 1 1 0 8 1 semapl 112 156 0 146 1 0 1 1 0 8 0 shmpl 112 62 0 56 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1720 0 323 46 0 46 46 0 8 0 ffsino 240 1720 0 323 83 0 83 83 0 8 0 nchpl 144 2257 0 645 60 0 60 60 0 8 0 uvmvnodes 72 2046 0 0 38 0 38 38 0 8 0 vnodes 208 2046 0 0 108 0 108 108 0 8 0 namei 1024 6008 0 6008 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 6754 0 6754 8 5 3 7 0 8 3 plimitpl 152 36 0 29 1 0 1 1 0 8 0 sigapl 432 399 0 385 2 0 2 2 0 8 0 futexpl 56 6666 0 6663 1 0 1 1 0 8 0 knotepl 112 122 0 103 2 0 2 2 0 8 1 kqueuepl 104 67 0 63 1 0 1 1 0 8 0 pipepl 128 214 0 195 1 0 1 1 0 8 0 fdescpl 424 400 0 385 2 0 2 2 0 8 0 filepl 120 2657 0 2552 4 0 4 4 0 8 0 lockfpl 104 87 0 86 1 0 1 1 0 8 0 lockfspl 48 30 0 29 1 0 1 1 0 8 0 sessionpl 128 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 243 0 236 1 0 1 1 0 8 0 zombiepl 144 385 0 385 1 0 1 1 0 8 1 processpl 896 416 0 385 4 0 4 4 0 8 0 procpl 648 687 0 646 4 0 4 4 0 8 0 sockpl 384 504 0 486 4 0 4 4 0 8 2 mcl64k 65536 281 0 281 33 8 25 33 0 8 25 mcl16k 16384 4 0 4 1 1 0 1 0 8 0 mcl12k 12288 7 0 7 2 1 1 1 0 8 1 mcl9k 9216 3 0 3 2 1 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 32 0 32 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 67099 0 67070 13 8 5 11 0 8 0 mtagpl 80 21 0 2 2 1 1 1 0 8 0 mbufpl 256 107930 0 107807 25 11 14 24 0 8 5 bufpl 280 7017 0 2148 349 0 349 349 0 8 0 anonpl 16 69968 0 45873 100 3 97 97 0 62 0 amapchunkpl 152 1910 0 1722 11 1 10 10 0 158 2 amappl16 192 2944 0 1608 71 4 67 67 0 8 0 amappl14 176 145 0 137 1 0 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 8 0 8 1 1 0 1 0 8 0 amappl11 152 143 0 130 1 0 1 1 0 8 0 amappl10 144 10 0 7 1 0 1 1 0 8 0 amappl9 136 560 0 556 1 0 1 1 0 8 0 amappl8 128 161 0 132 1 0 1 1 0 8 0 amappl7 120 34 0 31 1 0 1 1 0 8 0 amappl6 112 152 0 143 1 0 1 1 0 8 0 amappl5 104 132 0 123 1 0 1 1 0 8 0 amappl4 96 612 0 583 1 0 1 1 0 8 0 amappl3 88 212 0 205 1 0 1 1 0 8 0 amappl2 80 2431 0 2358 3 1 2 3 0 8 0 amappl1 72 16391 0 15961 27 18 9 20 0 8 0 amappl 80 916 0 866 3 1 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 63 0 56 1 0 1 1 0 8 0 uaddrrnd 24 406 0 385 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 406 0 385 1 0 1 1 0 8 0 vmmpekpl 168 6716 0 6693 2 0 2 2 0 8 0 vmmpepl 168 55941 0 53395 134 20 114 126 0 357 3 vmsppl 272 399 0 385 2 1 1 2 0 8 0 pdppl 4096 818 0 776 7 1 6 6 0 8 0 pvpl 32 188663 0 161138 222 0 222 222 0 265 0 pmappl 200 405 0 386 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 188 0 33 6 0 6 6 0 8 0