uvm_fault(0xfffffd806c2219b0, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *432311 22615 0 0 0x4000000 0 syz-executor ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002d9e0ce0,ffff800037645b70,ffff800037645ac0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037645b70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0fe9e5c0, 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(0xfffffd806c2219b0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002d9e0ce0,ffff800037645b70,ffff800037645ac0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037645b70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0fe9e5c0, count: -5 ddb> show registers rdi 0xffff80002d9e2000 rsi 0x14af __ALIGN_SIZE+0x4af rbp 0xffff800037645890 rbx 0xfffffd807f7d7340 rdx 0xffff80002d9e2000 rcx 0x14ae __ALIGN_SIZE+0x4ae rax 0xffffffff81bdc5e3 ktrops+0x43 r8 0xfffffd806f575968 r9 0xfffffd807f7d7340 r10 0xc0267c7e8377ecdc r11 0xaa8fe0cc9d7b88ec r12 0xffff80002d9e0ce0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000310 __kernel_virt_to_phys+0x310 rip 0xffffffff81bdc5f8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037645810 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=432311 pid=22615 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002d9e0a58,0xffff80002d9e1488 process=0xffff8000327f6f30 user=0xffff800037640000, vmspace=0xfffffd806c2219b0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 22615 128809 31419 0 2 0 syz-executor *22615 432311 31419 0 7 0x4000000 syz-executor 35582 454032 30603 0 3 0 vmmaplk syz-executor 35582 51162 30603 0 2 0x4000000 syz-executor 31751 259420 29583 0 2 0 syz-executor 31751 159635 29583 0 2 0x4000000 syz-executor 19348 508326 174 0 4 0x82004 syz-executor 19348 436996 174 0 2 0x4002004 syz-executor 13036 280603 49944 0 2 0 syz-executor 13036 178785 49944 0 2 0x4000000 syz-executor 51933 293583 5770 0 2 0 syz-executor 51933 472381 5770 0 3 0x4000080 fsleep syz-executor 51933 8595 5770 0 3 0x4000080 fsleep syz-executor 9466 286897 46880 60929 2 0x10 syz-executor 9466 194031 46880 60929 3 0x4000090 fsleep syz-executor 9466 100613 46880 60929 3 0x4000090 fsleep syz-executor 81685 167784 11101 0 2 0 syz-executor 81685 303030 11101 0 3 0x4000080 fsleep syz-executor 81685 125117 11101 0 3 0x4000080 fsleep syz-executor 81685 235619 11101 0 3 0x4000080 fsleep syz-executor 30603 361644 21541 0 3 0x82 nanoslp syz-executor 21854 262884 1 0 3 0x100083 ttyin getty 62655 339686 0 0 3 0x14280 nfsidl nfsio 76155 207751 0 0 3 0x14280 nfsidl nfsio 42588 454102 0 0 3 0x14280 nfsidl nfsio 81114 241140 0 0 3 0x14280 nfsidl nfsio 64742 365007 0 0 3 0x14280 nfsidl nfsio 71498 354214 0 0 3 0x14280 nfsidl nfsio 38437 324297 0 0 3 0x14280 nfsidl nfsio 70418 157645 0 0 3 0x14280 nfsidl nfsio 75985 205053 0 0 3 0x14280 nfsidl nfsio 88268 461228 0 0 3 0x14280 nfsidl nfsio 94442 3998 0 0 3 0x14280 nfsidl nfsio 42343 3411 0 0 3 0x14280 nfsidl nfsio 75396 203637 0 0 3 0x14280 nfsidl nfsio 76228 64671 0 0 3 0x14280 nfsidl nfsio 49686 494771 0 0 3 0x14280 nfsidl nfsio 9484 412566 0 0 3 0x14280 nfsidl nfsio 67259 31353 0 0 3 0x14280 nfsidl nfsio 75093 295015 0 0 3 0x14280 nfsidl nfsio 99763 398846 0 0 3 0x14280 nfsidl nfsio 9992 311425 0 0 3 0x14280 nfsidl nfsio 92422 332693 0 0 3 0x14200 bored sosplice 174 443146 21541 0 3 0x82 nanoslp syz-executor 29583 126875 21541 0 3 0x82 nanoslp syz-executor 5770 240145 21541 0 3 0x82 nanoslp syz-executor 46880 314889 21541 0 3 0x82 nanoslp syz-executor 49944 73019 21541 0 3 0x82 nanoslp syz-executor 31419 178562 21541 0 3 0x82 nanoslp syz-executor 11101 288738 21541 0 3 0x82 nanoslp syz-executor 21541 78440 49348 0 3 0x82 kqread syz-executor 49348 205508 56588 0 3 0x10008a sigsusp ksh 56588 239275 49367 0 3 0x98 kqread sshd-session 49367 506908 28023 0 3 0x92 kqread sshd-session 28023 85024 1 0 3 0x88 kqread sshd 98406 67157 12691 73 3 0x1100090 kqread syslogd 12691 73059 1 0 3 0x100082 sbwait syslogd 7878 106064 1 0 3 0x100080 kqread resolvd 57205 462820 21775 77 3 0x100092 kqread dhcpleased 60959 511592 21775 77 3 0x100092 kqread dhcpleased 21775 18940 1 0 3 0x80 kqread dhcpleased 20123 185444 0 0 3 0x14200 bored smr 68294 428267 0 0 2 0x14200 zerothread 8682 267751 0 0 3 0x14200 aiodoned aiodoned 58936 300337 0 0 3 0x14200 syncer update 10296 273151 0 0 3 0x14200 cleaner cleaner 59627 393400 0 0 3 0x14200 reaper reaper 42115 363955 0 0 3 0x14200 pgdaemon pagedaemon 94767 259397 0 0 3 0x14200 bored viomb 68517 121740 0 0 3 0x40014200 acpi0 acpi0 94415 321957 0 0 3 0x14200 bored softnet3 87992 126785 0 0 3 0x14200 bored softnet2 96466 228493 0 0 3 0x14200 bored softnet1 3996 238570 0 0 3 0x14200 bored softnet0 93729 1212 0 0 3 0x14200 bored systqmp 83284 215881 0 0 3 0x14200 bored systq 36989 324012 0 0 3 0x40014200 tmoslp softclock 5456 100811 0 0 3 0x40014200 idle0 1 137449 0 0 3 0x80082 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 10219 11139K 11390K 166960K 13364 0 pcb 17 15K 17K 166960K 288 0 rtable 134 5K 7K 166960K 504 0 pf 34 13K 21K 166960K 102 0 ifaddr 31 4K 7K 166960K 79 0 ifgroup 54 2K 2K 166960K 108 0 sysctl 3 0K 4K 166960K 4 0 counters 31 17K 17K 166960K 50 0 ioctlops 0 0K 4K 166960K 160 0 iov 0 0K 18K 166960K 113 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1530 96K 96K 166960K 2815 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 10K 10K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 43 0 dirhash 12 2K 3K 166960K 54 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 97K 166960K 1381 0 sigio 0 0K 0K 166960K 22 0 proc 60 59K 124K 166960K 643 0 subproc 104 6K 6K 166960K 120 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 178 0 in_multi 51 3K 7K 166960K 163 0 ether_multi 1 0K 0K 166960K 9 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 271 1208K 1208K 166960K 271 0 exec 1 0K 1K 166960K 565 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 72K 88K 166960K 14684 0 UVM aobj 41 4K 4K 166960K 48 0 pinsyscall 39 78K 98K 166960K 2429 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 73 0 NDP 12 0K 2K 166960K 53 0 temp 76 6816K 6894K 166960K 38665 0 kqueue 13 20K 30K 166960K 250 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 120 300 0 296 5 2 3 3 0 8 2 rtentry 112 146 0 91 4 0 4 4 0 8 0 unpcb 144 1477 0 1460 9 5 4 6 0 8 3 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 6 0 6 1 1 0 1 0 8 0 tcpcb 808 512 0 505 11 3 8 8 0 8 7 arp 88 24 0 12 1 0 1 1 0 8 0 ipq 40 4 0 3 1 0 1 1 0 8 0 ipqe 40 9 0 8 1 0 1 1 0 8 0 inpcb 336 1887 0 1877 12 5 7 7 0 8 5 nd6 104 31 0 20 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 13 0 13 2 1 1 1 0 8 1 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 2 0 2 1 1 0 1 0 8 0 pftag 88 4 0 1 2 1 1 1 0 8 0 pfstkey 128 2 0 2 1 0 1 1 0 8 1 pfstate 344 1 0 1 1 0 1 1 0 8 1 pfrule 1344 8 0 7 2 1 1 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 660 0 394 29 7 22 29 0 8 3 art_table 32 664 0 394 4 0 4 4 0 8 0 art_node 16 144 0 97 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 29 1 0 1 1 0 8 0 semapl 112 39 0 29 1 0 1 1 0 8 0 shmpl 112 45 0 7 2 0 2 2 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 3951 0 2458 95 0 95 95 0 8 0 ffsino 240 3951 0 2458 89 0 89 89 0 8 0 nchpl 144 5958 0 4281 63 0 63 63 0 8 0 uvmvnodes 80 5003 0 0 103 0 103 103 0 8 0 vnodes 216 5003 0 0 278 0 278 278 0 8 0 namei 1024 21037 0 21036 4 2 2 2 0 8 1 kstatmem 264 62 0 38 2 0 2 2 0 8 0 scsiplug 72 5 0 5 2 1 1 1 0 8 1 scxspl 216 16792 0 16792 9 7 2 8 1 8 2 plimitpl 152 335 0 316 1 0 1 1 0 8 0 sigapl 424 1683 0 1616 8 0 8 8 0 8 0 futexpl 64 20170 0 20163 1 0 1 1 0 8 0 knotepl 120 72198 0 72151 47 35 12 24 0 8 8 kqueuepl 184 496 0 486 7 3 4 4 0 8 3 pipepl 288 269 0 242 8 1 7 7 0 8 4 fdescpl 432 1642 0 1612 5 1 4 5 0 8 0 filepl 120 12014 0 11764 17 2 15 15 0 8 6 lockfpl 104 535 0 532 1 0 1 1 0 8 0 lockfspl 48 203 0 200 1 0 1 1 0 8 0 sessionpl 144 24 0 16 1 0 1 1 0 8 0 pgrppl 48 52 0 36 1 0 1 1 0 8 0 ucredpl 104 2087 0 2074 1 0 1 1 0 8 0 zombiepl 144 2164 0 2164 1 0 1 1 0 8 1 processpl 1096 1683 0 1616 5 0 5 5 0 8 0 procpl 648 3833 0 3754 8 0 8 8 0 8 0 sosppl 168 15 0 15 2 1 1 1 0 8 1 sockpl 504 3756 0 3725 40 28 12 22 0 8 6 mcl64k 65536 84 0 84 2 1 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 20 0 20 2 1 1 1 0 8 1 mcl4k 4096 4399 0 4349 15 7 8 14 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 1743 0 1741 3 1 2 2 0 8 1 mtagpl 96 32 0 20 1 0 1 1 0 8 0 mbufpl 256 19322 0 19202 17 3 14 16 0 8 1 bufpl 280 4507 0 106 315 0 315 315 0 8 0 anonpl 24 264941 0 261580 63 18 45 45 0 187 17 amapchunkpl 152 49352 0 48851 41 7 34 34 0 158 11 amappl16 200 6497 0 6464 32 21 11 15 0 8 8 amappl15 192 42 0 42 1 1 0 1 0 8 0 amappl14 184 112 0 102 1 0 1 1 0 8 0 amappl13 176 13 0 12 1 0 1 1 0 8 0 amappl12 168 2281 0 2251 3 1 2 3 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 15 0 15 1 1 0 1 0 8 0 amappl9 144 122 0 122 1 1 0 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 94 0 83 1 0 1 1 0 8 0 amappl6 120 186 0 184 1 0 1 1 0 8 0 amappl5 112 136 0 127 1 0 1 1 0 8 0 amappl4 104 293 0 276 1 0 1 1 0 8 0 amappl3 96 8990 0 8892 3 0 3 3 0 8 0 amappl2 88 1925 0 1845 2 0 2 2 0 8 0 amappl1 80 11277 0 10757 13 1 12 13 0 8 0 amappl 88 14176 0 14001 5 0 5 5 0 92 0 dma65536 65536 2 0 2 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 255 0 255 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 72 47 0 7 1 0 1 1 0 8 0 uaddrrnd 24 1642 0 1612 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1642 0 1612 1 0 1 1 0 8 0 vmmpekpl 168 14135 0 14101 3 0 3 3 0 8 1 vmmpepl 168 106051 0 104247 99 10 89 89 0 357 10 vmsppl 352 1641 0 1612 4 1 3 4 0 8 0 rwobjpl 24 35259 0 29353 36 0 36 36 0 8 0 pdppl 4096 3291 0 3224 119 52 67 83 0 8 0 pvpl 32 694259 0 685168 140 26 114 114 0 265 35 pmappl 216 1641 0 1612 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 460 0 115 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002d9e0ce0,ffff800037645b70,ffff800037645ac0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037645b70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0fe9e5c0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002d9e0ce0,ffffffffffffffff,0,80000310,fffffd806f575968,fffffd807f7d7340) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806f575968,4,310,0,ffff80002d9e0ce0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002d9e0ce0,ffff800037645b70,ffff800037645ac0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037645b70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xf0fe9e5c0, count: -5