uvm_fault(0xfffffd806c1ac010, 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 *485621 41900 0 0 0x4000000 0 syz-executor ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a456f38,ffff80002b809230,ffff80002b809180) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002b809230) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x26843d7af0, 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(0xfffffd806c1ac010, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a456f38,ffff80002b809230,ffff80002b809180) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002b809230) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x26843d7af0, count: -5 ddb> show registers rdi 0xffff80002d3d0000 rsi 0x1eac __ALIGN_SIZE+0xeac rbp 0xffff80002b808f50 rbx 0xfffffd807f7d7820 rdx 0xffff80002d3d0000 rcx 0x1eab __ALIGN_SIZE+0xeab rax 0xffffffff81882963 ktrops+0x43 r8 0xfffffd8061caa948 r9 0xfffffd807f7d7820 r10 0xf4525b742cf00f68 r11 0x466fa37176a9e622 r12 0xffff80002a456f38 r13 0x1 r14 0xffffffffffffffff r15 0xa0001430 rip 0xffffffff81882978 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002b808ed0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=485621 pid=41900 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4b0010,0xffff8000376162b8 process=0xffff8000ffff4460 user=0xffff80002b804000, vmspace=0xfffffd806c1ac010 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53225 298907 53006 0 2 0x82000 syz-executor 53225 198983 53006 0 3 0x4002000 suspend syz-executor 33125 66346 23919 0 2 0x10 syz-executor 33125 332146 23919 0 2 0x4000010 syz-executor 41900 417847 40645 0 2 0 syz-executor *41900 485621 40645 0 7 0x4000000 syz-executor 98425 177537 82731 0 2 0 syz-executor 98425 10905 82731 0 3 0x4000080 fsleep syz-executor 79578 107632 64484 0 2 0 syz-executor 79578 209090 64484 0 3 0x4000080 fsleep syz-executor 79578 361132 64484 0 3 0x4000080 fsleep syz-executor 82731 226861 61214 0 2 0x482 syz-executor 64484 68464 61214 0 2 0x482 syz-executor 53006 15415 61214 0 2 0x482 syz-executor 23919 521042 61214 0 2 0x482 syz-executor 23351 514128 61214 0 2 0x2 syz-executor 53085 315386 61214 0 3 0x2 biowait syz-executor 40645 249730 61214 0 2 0x482 syz-executor 78867 376224 61214 0 2 0x2 syz-executor 25799 98091 1 0 3 0x100083 ttyin getty 85431 8207 0 0 3 0x14200 bored sosplice 61214 249101 65206 0 3 0x82 kqread syz-executor 65206 179914 73719 0 3 0x10008a sigsusp ksh 73719 266065 11264 0 3 0x98 kqread sshd-session 11264 291381 1 0 3 0x92 kqread sshd-session 69225 492271 33514 73 3 0x1100090 kqread syslogd 33514 155992 1 0 3 0x100082 sbwait syslogd 80665 304628 1 0 3 0x100080 kqread resolvd 60626 294153 56457 77 3 0x100092 kqread dhcpleased 84099 20271 56457 77 3 0x100092 kqread dhcpleased 56457 140983 1 0 3 0x80 kqread dhcpleased 88112 453107 0 0 3 0x14200 bored smr 9750 77733 0 0 2 0x14200 zerothread 94092 362879 0 0 3 0x14200 aiodoned aiodoned 79736 263442 0 0 3 0x14200 syncer update 94708 378501 0 0 3 0x14200 cleaner cleaner 16738 196484 0 0 3 0x14200 reaper reaper 8590 130807 0 0 3 0x14200 pgdaemon pagedaemon 35232 106216 0 0 3 0x14200 bored viomb 93152 123024 0 0 3 0x40014200 acpi0 acpi0 60928 123107 0 0 3 0x14200 bored softnet3 49867 448347 0 0 3 0x14200 bored softnet2 84163 130013 0 0 3 0x14200 bored softnet1 51702 68995 0 0 2 0x14200 softnet0 51842 375084 0 0 3 0x14200 bored systqmp 61833 495228 0 0 3 0x14200 bored systq 48495 261665 0 0 2 0x40014200 softclock 8021 266826 0 0 3 0x40014200 idle0 1 196536 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 10193 11058K 11376K 166960K 14429 0 pcb 17 14K 16K 166960K 719 0 rtable 222 9K 10K 166960K 2769 0 pf 38 14K 17K 166960K 306 0 ifaddr 42 8K 8K 166960K 385 0 ifgroup 56 2K 2K 166960K 440 0 sysctl 3 0K 1K 166960K 5 0 counters 32 17K 17K 166960K 139 0 ioctlops 0 0K 4K 166960K 457 0 iov 0 0K 40K 166960K 301 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1486 93K 94K 166960K 4522 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 68K 76K 166960K 51 0 VM map 2 1K 1K 166960K 2 0 sem 16 10K 10K 166960K 52 0 dirhash 15 2K 3K 166960K 51 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 15 53K 97K 166960K 4091 0 sigio 0 0K 0K 166960K 47 0 proc 60 59K 124K 166960K 2696 0 subproc 104 6K 8K 166960K 1043 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 444 0 in_multi 88 6K 7K 166960K 977 0 ether_multi 1 0K 0K 166960K 13 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 1590 0 pfkey data 0 0K 4K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 200 72K 99K 166960K 34755 0 UVM aobj 113 6K 6K 166960K 123 0 pinsyscall 34 68K 96K 166960K 6943 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 116 0 NDP 13 0K 2K 166960K 283 0 temp 79 6816K 6944K 166960K 127843 0 kqueue 13 20K 36K 166960K 629 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 120 748 0 745 4 2 2 3 0 8 1 rtentry 112 959 0 863 4 0 4 4 0 8 0 unpcb 144 3390 0 3373 8 6 2 6 0 8 0 syncache 336 7 0 7 3 3 0 1 0 8 0 tcpqe 32 5 0 5 2 2 0 1 0 8 0 tcpcb 808 1268 0 1263 15 7 8 8 0 8 7 arp 88 170 0 153 1 0 1 1 0 8 0 ipq 40 20 0 18 2 1 1 1 0 8 0 ipqe 40 248 0 246 2 1 1 1 0 8 0 inpcb 336 3924 0 3915 18 11 7 7 0 8 5 nd6 104 255 0 234 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 2 0 1 0 8 0 kcovpl 48 80 0 72 1 0 1 1 0 8 0 ppxss 1072 28 0 27 3 2 1 1 0 8 0 pfstscr 40 7 0 7 2 2 0 1 0 8 0 pfrktable 1344 3 0 3 1 1 0 1 0 8 0 pfanchor 1288 2 0 1 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 2 1 0 1 1 0 8 0 pfstkey 128 16 0 12 1 0 1 1 0 8 0 pfstate 344 9 0 8 1 0 1 1 0 8 0 pfrule 1344 43 0 31 2 0 2 2 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 3951 0 3541 37 6 31 31 0 8 4 art_table 32 3955 0 3541 4 0 4 4 0 8 0 art_node 16 952 0 868 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 46 0 32 1 0 1 1 0 8 0 shmpl 112 120 0 10 4 0 4 4 0 8 0 dirhash 1024 44 0 25 3 0 3 3 0 8 0 dino2pl 256 6994 0 5356 103 0 103 103 0 8 0 ffsino 240 6995 0 5356 97 0 97 97 0 8 0 nchpl 144 11427 0 9655 66 0 66 66 0 8 0 uvmvnodes 80 6940 0 0 142 0 142 142 0 8 0 vnodes 216 6940 0 0 386 0 386 386 0 8 0 namei 1024 44332 0 44330 4 3 1 2 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 240 0 214 2 0 2 2 0 8 0 scsiplug 72 6 0 6 2 2 0 1 0 8 0 scxspl 216 69263 0 69262 10 9 1 8 1 8 0 plimitpl 152 926 0 909 1 0 1 1 0 8 0 sigapl 424 4232 0 4189 7 1 6 7 0 8 0 futexpl 64 42872 0 42869 1 0 1 1 0 8 0 knotepl 120 144907 0 144861 39 35 4 16 0 8 1 kqueuepl 184 884 0 875 4 3 1 4 0 8 0 pipepl 288 618 0 591 9 2 7 7 0 8 4 fdescpl 432 4213 0 4187 5 1 4 5 0 8 0 filepl 120 24976 0 24724 26 12 14 15 0 8 5 lockfpl 104 1021 0 1019 1 0 1 1 0 8 0 lockfspl 48 406 0 404 1 0 1 1 0 8 0 sessionpl 144 93 0 86 1 0 1 1 0 8 0 pgrppl 48 200 0 185 1 0 1 1 0 8 0 ucredpl 104 3793 0 3781 1 0 1 1 0 8 0 zombiepl 144 4649 0 4649 3 2 1 1 0 8 1 processpl 1096 4232 0 4189 4 0 4 4 0 8 0 procpl 648 8545 0 8496 7 1 6 6 0 8 1 sosppl 168 32 0 32 3 3 0 1 0 8 0 sockpl 504 8115 0 8086 90 76 14 30 0 8 8 mcl64k 65536 262 0 262 5 4 1 1 0 8 1 mcl16k 16384 97 0 97 4 3 1 1 0 8 1 mcl12k 12288 45 0 45 2 2 0 1 0 8 0 mcl9k 9216 31 0 31 4 3 1 1 0 8 1 mcl8k 8192 197 0 197 5 4 1 1 0 8 1 mcl4k 4096 8060 0 8003 20 12 8 15 0 8 0 mcl2k2 2112 5 0 5 2 2 0 1 0 8 0 mcl2k 2048 4354 0 4351 4 2 2 4 0 8 0 mtagpl 96 161 0 160 3 2 1 2 0 8 0 mbufpl 256 45465 0 45276 63 45 18 28 0 8 3 bufpl 280 17016 0 10077 496 0 496 496 0 8 0 anonpl 24 541871 0 538003 77 35 42 68 0 187 0 amapchunkpl 152 115459 0 114992 54 31 23 36 0 158 2 amappl16 200 10555 0 10532 59 56 3 25 0 8 0 amappl15 192 4 0 4 2 2 0 1 0 8 0 amappl14 184 254 0 245 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 5944 0 5918 3 1 2 3 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 19 0 19 1 1 0 1 0 8 0 amappl9 144 131 0 131 1 1 0 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 240 0 231 1 0 1 1 0 8 0 amappl6 120 864 0 863 1 0 1 1 0 8 0 amappl5 112 409 0 400 1 0 1 1 0 8 0 amappl4 104 498 0 486 1 0 1 1 0 8 0 amappl3 96 23324 0 23234 4 0 4 4 0 8 0 amappl2 88 1652 0 1594 2 0 2 2 0 8 0 amappl1 80 23411 0 22985 13 2 11 13 0 8 0 amappl 88 33662 0 33511 6 1 5 5 0 92 0 dma32768 32768 2 0 2 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma2048 2048 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 41 0 41 2 2 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 122 0 10 3 0 3 3 0 8 0 uaddrrnd 24 4213 0 4187 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4213 0 4187 1 0 1 1 0 8 0 vmmpekpl 168 30548 0 30499 3 0 3 3 0 8 0 vmmpepl 168 253941 0 252455 97 24 73 92 0 357 1 vmsppl 344 4212 0 4187 4 1 3 4 0 8 0 rwobjpl 24 71328 0 63551 50 1 49 50 0 8 0 pdppl 4096 8432 0 8374 244 178 66 82 0 8 8 pvpl 32 1944173 0 1934125 339 230 109 231 0 265 0 pmappl 216 4212 0 4187 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 734 0 361 12 1 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a456f38,ffff80002b809230,ffff80002b809180) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002b809230) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x26843d7af0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a456f38,ffffffffffffffff,0,a0001430,fffffd8061caa948,fffffd807f7d7820) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8061caa948,4,20001430,ffffffff,ffff80002a456f38) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a456f38,ffff80002b809230,ffff80002b809180) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002b809230) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x26843d7af0, count: -5