login: uvm_fault(0xffffffff8390c430, 0x48, 0, 1) -> e kernel: page fault trap, code=0 Stopped at uvm_unmap_remove+0x426: movq 0x48(%r15),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *287770 79258 0 0x14000 0x200 0 reaper uvm_unmap_remove(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000,ffff80002a7639c8,0,1,129ce9e1f74a439d) at uvm_unmap_remove+0x426 sys/uvm/uvm_map.c:1969 uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 vm_map_unlock_ln sys/uvm/uvm_map.c:-1 [inline] uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 sys/uvm/uvm_map.c:1793 km_free(ffff80003c9d8000,6000,ffffffff83695ae8,ffffffff83485c30) at km_free+0x87 sys/uvm/uvm_km.c:714 uvm_uarea_free(ffff80003c937788) at uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 reaper(ffff80002a72ca60) at reaper+0x1a9 sys/kern/kern_exit.c:493 end trace frame: 0x0, count: 10 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xffffffff8390c430, 0x48, 0, 1) -> e ddb> trace uvm_unmap_remove(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000,ffff80002a7639c8,0,1,129ce9e1f74a439d) at uvm_unmap_remove+0x426 sys/uvm/uvm_map.c:1969 uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 vm_map_unlock_ln sys/uvm/uvm_map.c:-1 [inline] uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 sys/uvm/uvm_map.c:1793 km_free(ffff80003c9d8000,6000,ffffffff83695ae8,ffffffff83485c30) at km_free+0x87 sys/uvm/uvm_km.c:714 uvm_uarea_free(ffff80003c937788) at uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 reaper(ffff80002a72ca60) at reaper+0x1a9 sys/kern/kern_exit.c:493 end trace frame: 0x0, count: -5 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a7639b0 rbx 0xffffffff838a47e8 kernel_map_store rdx 0 rcx 0 rax 0xffff80002a72ca60 r8 0 r9 0x1 r10 0xf3277684c03dae7a r11 0x59c41226fd331edf r12 0xffff80003c9de000 r13 0xffff80003c9d8000 r14 0 r15 0 rip 0xffffffff81ffb346 uvm_unmap_remove+0x426 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a763920 ss 0x10 uvm_unmap_remove+0x426: movq 0x48(%r15),%r14 ddb> show proc PROC (reaper) tid=287770 pid=79258 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=4, usrpri=50, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a72c530,0xffff80002a72cfa0 process=0xffff8000ffffc900 user=0xffff80002a75e000, vmspace=0xffffffff8390c430 estcpu=0, cpticks=9, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 41341 383521 78245 0 3 0x80 fsleep syz-executor 41341 421675 78245 0 3 0x4000080 lockf syz-executor 26128 521521 41291 0 3 0x80 fsleep syz-executor 26128 116303 41291 0 3 0x4000080 pipewr syz-executor 41291 519138 48719 0 3 0x82 nanoslp syz-executor 26742 57050 46145 0 3 0x80 fsleep syz-executor 26742 202101 46145 0 3 0x4000080 kqread syz-executor 39454 452532 645 -1 3 0x90 fsleep syz-executor 39454 414726 645 -1 3 0x4000090 kqsel syz-executor 87266 160396 0 0 3 0x14200 acct acct 56685 369617 66446 0 3 0x80 fsleep syz-executor 56685 435875 66446 0 3 0x4000080 sbwait syz-executor 56685 188552 66446 0 3 0x4000080 fsleep syz-executor 5229 127316 93588 0 3 0x80 fsleep syz-executor 5229 39151 93588 0 3 0x4000080 piperd syz-executor 54129 459942 1 0 3 0x100083 ttyin getty 78245 119228 48719 0 3 0x82 nanoslp syz-executor 66446 516431 48719 0 3 0x82 nanoslp syz-executor 35981 119973 0 0 3 0x14280 nfsidl nfsio 75714 395277 0 0 3 0x14280 nfsidl nfsio 60752 342833 0 0 3 0x14280 nfsidl nfsio 50021 457710 0 0 3 0x14280 nfsidl nfsio 56511 174892 0 0 3 0x14280 nfsidl nfsio 48854 419499 0 0 3 0x14280 nfsidl nfsio 40787 452474 0 0 3 0x14280 nfsidl nfsio 70820 481994 0 0 3 0x14280 nfsidl nfsio 37299 348083 0 0 3 0x14280 nfsidl nfsio 58846 100956 0 0 3 0x14280 nfsidl nfsio 34241 386318 0 0 3 0x14280 nfsidl nfsio 23484 154337 0 0 3 0x14280 nfsidl nfsio 59119 93561 0 0 3 0x14280 nfsidl nfsio 10834 204425 0 0 3 0x14280 nfsidl nfsio 9076 187738 0 0 3 0x14280 nfsidl nfsio 22515 96678 0 0 3 0x14280 nfsidl nfsio 10275 184467 0 0 3 0x14280 nfsidl nfsio 39267 369883 0 0 3 0x14280 nfsidl nfsio 44684 314646 0 0 3 0x14280 nfsidl nfsio 41677 41378 0 0 3 0x14280 nfsidl nfsio 645 398504 48719 0 2 0xc82 syz-executor 30525 503130 48719 0 3 0x82 nanoslp syz-executor 37155 273507 48719 0 3 0x82 wait syz-executor 93588 430301 48719 0 2 0xc82 syz-executor 46145 221483 48719 0 2 0xc82 syz-executor 48719 369425 2312 0 3 0x82 kqread syz-executor 2312 459915 94981 0 3 0x10008a sigsusp ksh 94981 343560 9027 0 3 0x98 kqread sshd-session 9027 241848 35326 0 3 0x92 kqread sshd-session 35326 21150 1 0 3 0x88 kqread sshd 7744 20005 41990 73 3 0x1100090 kqread syslogd 41990 509494 1 0 3 0x100082 sbwait syslogd 68127 399617 1 0 3 0x100080 kqread resolvd 84523 183968 76670 77 3 0x100092 kqread dhcpleased 71950 210909 76670 77 3 0x100092 kqread dhcpleased 76670 212256 1 0 3 0x80 kqread dhcpleased 67524 295063 0 0 3 0x14200 bored smr 89605 233381 0 0 3 0x14200 pgzero zerothread 35819 238963 0 0 3 0x14200 aiodoned aiodoned 97454 230691 0 0 3 0x14200 syncer update 16693 458594 0 0 3 0x14200 cleaner cleaner *79258 287770 0 0 7 0x14200 reaper 61048 315447 0 0 3 0x14200 pgdaemon pagedaemon 53862 511695 0 0 3 0x14200 bored viomb 67266 178090 0 0 3 0x40014200 acpi0 acpi0 42917 299930 0 0 3 0x14200 bored softnet0 23164 99189 0 0 3 0x14200 bored systqmp 28411 497733 0 0 3 0x14200 bored systq 4616 225644 0 0 3 0x40014200 tmoslp softclock 11997 35723 0 0 3 0x40014200 idle0 1 439290 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11067 12119K 13224K 166960K 14384 0 pcb 18 14K 16K 166960K 296 0 rtable 213 9K 10K 166960K 605 0 pf 31 13K 14K 166960K 110 0 ifaddr 36 6K 8K 166960K 94 0 ifgroup 50 2K 2K 166960K 142 0 sysctl 4 1K 9K 166960K 11 0 counters 33 17K 18K 166960K 75 0 ioctlops 0 0K 4K 166960K 291 0 iov 0 0K 24K 166960K 49 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1456 91K 92K 166960K 2328 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 13K 166960K 12 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 20 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 1047 0 sigio 0 0K 0K 166960K 21 0 proc 60 59K 108K 166960K 651 0 subproc 72 4K 4K 166960K 101 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 108 0 in_multi 77 5K 7K 166960K 172 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 453 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 230 159K 173K 166960K 10673 0 UVM aobj 22 10K 10K 166960K 28 0 pinsyscall 39 78K 94K 166960K 2224 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 43 0 NDP 13 0K 2K 166960K 63 0 temp 81 8676K 8744K 166960K 30214 0 kqueue 16 22K 31K 166960K 185 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 100 0 97 1 0 1 1 0 8 0 rtentry 136 161 0 80 4 0 4 4 0 8 0 unpcb 144 452 0 434 3 1 2 2 0 8 1 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 362 0 358 13 6 7 7 0 8 6 arp 96 25 0 8 1 0 1 1 0 8 0 ipq 40 6 0 4 1 0 1 1 0 8 0 ipqe 40 11 0 9 1 0 1 1 0 8 0 inpcb 328 1065 0 1057 13 6 7 7 0 8 6 ip6q 72 2 0 1 1 0 1 1 0 8 0 ip6af 40 3 0 2 1 0 1 1 0 8 0 nd6 112 38 0 19 1 0 1 1 0 8 0 pkpcb 40 6 0 6 2 1 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1072 31 0 31 2 1 1 1 0 8 1 pppxif 1384 3 0 3 1 0 1 1 0 8 1 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfrule 1360 3 0 2 1 0 1 1 0 8 0 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 709 0 367 32 3 29 32 0 8 7 art_table 40 714 0 367 6 0 6 6 0 8 0 art_node 32 160 0 87 1 0 1 1 0 8 0 sysvmsgpl 40 36 0 35 2 1 1 1 0 8 0 semapl 112 18 0 8 1 0 1 1 0 8 0 shmpl 112 22 0 5 1 0 1 1 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3266 0 1769 95 0 95 95 0 8 0 ffsino 256 3266 0 1769 95 0 95 95 0 8 0 nchpl 144 4693 0 2996 64 0 64 64 0 8 0 rtmask 32 4 0 4 2 1 1 1 0 8 1 vnodes 216 3956 0 0 220 0 220 220 0 8 0 namei 1024 15542 0 15542 3 2 1 2 0 8 1 vcpupl 3904 3 0 1 1 0 1 1 0 8 0 vmpool 808 3 0 1 1 0 1 1 0 8 0 kstatmem 264 82 0 60 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 2 1 1 1 0 8 1 scxspl 216 20796 0 20796 10 2 8 8 1 8 8 plimitpl 152 164 0 145 1 0 1 1 0 8 0 sigapl 424 1358 0 1294 8 0 8 8 0 8 0 knotepl 120 57724 0 57670 47 35 12 17 0 8 8 kqueuepl 184 277 0 265 1 0 1 1 0 8 0 pipepl 304 257 0 228 8 0 8 8 0 8 5 fdescpl 448 1322 0 1292 5 1 4 5 0 8 0 filepl 120 7365 0 7142 13 2 11 11 0 8 3 lockfpl 104 291 0 286 1 0 1 1 0 8 0 lockfspl 48 119 0 115 1 0 1 1 0 8 0 sessionpl 144 29 0 21 1 0 1 1 0 8 0 pgrppl 48 51 0 35 1 0 1 1 0 8 0 ucredpl 104 1018 0 1005 1 0 1 1 0 8 0 zombiepl 144 1536 0 1534 1 0 1 1 0 8 0 processpl 1152 1358 0 1294 5 0 5 5 0 8 0 procpl 664 2672 0 2600 7 0 7 7 0 8 0 sosppl 176 8 0 8 2 1 1 1 0 8 1 sockpl 552 1698 0 1669 12 5 7 8 0 8 4 mcl64k 65536 120 0 120 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 25 0 25 1 0 1 1 0 8 1 mcl4k 4096 3629 0 3575 16 8 8 16 0 8 1 mcl2k2 2112 2 0 2 2 1 1 1 0 8 1 mcl2k 2048 1268 0 1264 8 4 4 5 0 8 3 mtagpl 96 29 0 18 1 0 1 1 0 8 0 mbufpl 256 15011 0 14856 27 10 17 26 0 8 0 bufpl 280 7471 0 1250 445 0 445 445 0 8 0 anonpl 24 195459 0 192245 54 9 45 45 0 187 17 amapchunkpl 152 36025 0 35534 42 8 34 34 0 158 14 amappl16 200 3655 0 3620 25 11 14 15 0 8 8 amappl15 192 23 0 23 1 1 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 443 0 442 1 0 1 1 0 8 0 amappl12 168 1728 0 1689 2 0 2 2 0 8 0 amappl11 160 5 0 4 1 0 1 1 0 8 0 amappl10 152 62 0 52 1 0 1 1 0 8 0 amappl9 144 270 0 270 1 1 0 1 0 8 0 amappl8 136 24 0 23 1 0 1 1 0 8 0 amappl7 128 94 0 93 1 0 1 1 0 8 0 amappl6 120 306 0 294 1 0 1 1 0 8 0 amappl5 112 72 0 64 1 0 1 1 0 8 0 amappl4 104 407 0 383 1 0 1 1 0 8 0 amappl3 96 6322 0 6227 3 0 3 3 0 8 0 amappl2 88 1440 0 1368 2 0 2 2 0 8 0 amappl1 80 13313 0 12765 14 1 13 13 0 8 0 amappl 88 9770 0 9609 4 0 4 4 0 92 0 uvmvnodes 80 123 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 259 0 259 2 1 1 1 0 8 1 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 27 0 6 1 0 1 1 0 8 0 uaddrrnd 24 1322 0 1292 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1322 0 1292 1 0 1 1 0 8 0 vmmpekpl 168 11614 0 11577 3 0 3 3 0 8 0 vmmpekpl: pool(0xffffffff838b6638:vmmpekpl): page inconsistency: page 0x0; at page head addr 0xfffffd806c0b8f90 (p 0xfffffd806c0b8000) vmmpepl 168 88678 0 86831 93 2 91 91 0 357 5 vmsppl 368 1321 0 1292 4 1 3 4 0 8 0 rwobjpl 40 24679 0 23687 13 0 13 13 0 8 0 pdppl 4096 2656 0 2588 111 42 69 82 0 8 1 pvpl 32 562836 0 552835 136 20 116 116 0 265 29 pmappl 216 1324 0 1293 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 427 0 80 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace uvm_unmap_remove(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000,ffff80002a7639c8,0,1,129ce9e1f74a439d) at uvm_unmap_remove+0x426 sys/uvm/uvm_map.c:1969 uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 vm_map_unlock_ln sys/uvm/uvm_map.c:-1 [inline] uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 sys/uvm/uvm_map.c:1793 km_free(ffff80003c9d8000,6000,ffffffff83695ae8,ffffffff83485c30) at km_free+0x87 sys/uvm/uvm_km.c:714 uvm_uarea_free(ffff80003c937788) at uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 reaper(ffff80002a72ca60) at reaper+0x1a9 sys/kern/kern_exit.c:493 end trace frame: 0x0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace uvm_unmap_remove(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000,ffff80002a7639c8,0,1,129ce9e1f74a439d) at uvm_unmap_remove+0x426 sys/uvm/uvm_map.c:1969 uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 vm_map_unlock_ln sys/uvm/uvm_map.c:-1 [inline] uvm_unmap(ffffffff838a47e8,ffff80003c9d8000,ffff80003c9de000) at uvm_unmap+0xa7 sys/uvm/uvm_map.c:1793 km_free(ffff80003c9d8000,6000,ffffffff83695ae8,ffffffff83485c30) at km_free+0x87 sys/uvm/uvm_km.c:714 uvm_uarea_free(ffff80003c937788) at uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:304 reaper(ffff80002a72ca60) at reaper+0x1a9 sys/kern/kern_exit.c:493 end trace frame: 0x0, count: -5