uvm_fault(0xfffffd8069747980, 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 *176446 62300 0 0 0x4000000 0 syz-executor ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a530030,ffff8000376c31b0,ffff8000376c3100) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376c31b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3d1fb569d0, 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(0xfffffd8069747980, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a530030,ffff8000376c31b0,ffff8000376c3100) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376c31b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3d1fb569d0, count: -5 ddb> show registers rdi 0xffff80002a530030 rsi 0xffffffffffffffff rbp 0xffff8000376c2ed0 rbx 0xfffffd807f7d76e8 rdx 0 rcx 0xa0001430 rax 0xffff80002a530030 r8 0xfffffd8068b22a20 r9 0xfffffd807f7d76e8 r10 0xf57075fab77848d3 r11 0x4bee28e484e81772 r12 0xffff80002a530030 r13 0x1 r14 0xffffffffffffffff r15 0xa0001430 rip 0xffffffff81228068 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000376c2e50 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=176446 pid=62300 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=76, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a530f60,0xffff80002a531708 process=0xffff8000376477c8 user=0xffff8000376be000, vmspace=0xfffffd8069747980 estcpu=26, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 62300 62234 95582 0 2 0 syz-executor *62300 176446 95582 0 7 0x4000000 syz-executor 3886 183856 17861 0 2 0 syz-executor 3886 478833 17861 0 2 0x4000000 syz-executor 3886 69403 17861 0 3 0x4000000 inode syz-executor 3886 264624 17861 0 3 0x4000080 fsleep syz-executor 38378 142878 28191 0 3 0x80 nanoslp syz-executor 38378 82611 28191 0 3 0x4000080 fsleep syz-executor 38378 479830 28191 0 2 0x4000000 syz-executor 38378 18799 28191 0 2 0x4000000 syz-executor 38378 83335 28191 0 3 0x4000080 fsleep syz-executor 39043 36972 0 0 3 0x14280 nfsidl nfsio 51762 279289 0 0 3 0x14280 nfsidl nfsio 99832 218965 0 0 3 0x14280 nfsidl nfsio 25031 254548 0 0 3 0x14280 nfsidl nfsio 69633 365803 0 0 3 0x14280 nfsidl nfsio 896 244413 0 0 3 0x14280 nfsidl nfsio 48389 175361 0 0 3 0x14280 nfsidl nfsio 89408 381857 0 0 3 0x14280 nfsidl nfsio 20369 29849 0 0 3 0x14280 nfsidl nfsio 82881 488596 0 0 3 0x14280 nfsidl nfsio 83855 342894 0 0 3 0x14280 nfsidl nfsio 69470 263066 0 0 3 0x14280 nfsidl nfsio 22474 90162 0 0 3 0x14280 nfsidl nfsio 91439 71862 0 0 3 0x14280 nfsidl nfsio 71315 105764 0 0 3 0x14280 nfsidl nfsio 76836 252273 0 0 3 0x14280 nfsidl nfsio 34471 452717 0 0 3 0x14280 nfsidl nfsio 73414 516903 0 0 3 0x14280 nfsidl nfsio 35292 64298 0 0 3 0x14280 nfsidl nfsio 54771 459968 0 0 3 0x14280 nfsidl nfsio 59542 362740 0 0 3 0x14200 bored sosplice 95582 516015 51178 0 3 0x82 nanoslp syz-executor 48711 166352 1 0 3 0x100083 ttyin getty 28191 377284 51178 0 3 0x82 nanoslp syz-executor 91812 34607 51178 0 2 0x2 syz-executor 52237 109794 51178 0 2 0x2 syz-executor 97780 263541 51178 0 2 0x2 syz-executor 17861 269429 51178 0 3 0x82 nanoslp syz-executor 31329 480740 51178 0 3 0x82 wait syz-executor 61198 329806 51178 0 2 0x2 syz-executor 51178 435675 21098 0 3 0x82 kqread syz-executor 21098 134523 21177 0 3 0x10008a sigsusp ksh 21177 61757 44615 0 3 0x98 kqread sshd-session 44615 295066 30996 0 3 0x92 kqread sshd-session 30996 252956 1 0 3 0x88 kqread sshd 91436 179682 94994 73 3 0x1100090 kqread syslogd 94994 231639 1 0 3 0x100082 sbwait syslogd 48660 380061 1 0 3 0x100080 kqread resolvd 62670 147026 65362 77 3 0x100092 kqread dhcpleased 23119 419740 65362 77 3 0x100092 kqread dhcpleased 65362 308978 1 0 3 0x80 kqread dhcpleased 63386 55357 0 0 3 0x14200 bored smr 1959 467225 0 0 2 0x14200 zerothread 62140 490625 0 0 3 0x14200 aiodoned aiodoned 20344 192281 0 0 3 0x14200 syncer update 11989 485083 0 0 3 0x14200 cleaner cleaner 84533 138832 0 0 3 0x14200 reaper reaper 92250 116941 0 0 3 0x14200 pgdaemon pagedaemon 44514 392439 0 0 3 0x14200 bored viomb 64303 40148 0 0 3 0x40014200 acpi0 acpi0 73297 18359 0 0 3 0x14200 bored softnet3 34128 336096 0 0 3 0x14200 bored softnet2 16965 441809 0 0 3 0x14200 bored softnet1 92330 377321 0 0 3 0x14200 bored softnet0 96313 186241 0 0 3 0x14200 bored systqmp 34220 323693 0 0 3 0x14200 bored systq 47531 214927 0 0 3 0x40014200 tmoslp softclock 27751 339149 0 0 3 0x40014200 idle0 1 382188 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 10185 11119K 11379K 166960K 11672 0 pcb 17 12K 12K 166960K 71 0 rtable 227 7K 7K 166960K 446 0 pf 32 13K 15K 166960K 42 0 ifaddr 42 7K 7K 166960K 57 0 ifgroup 54 2K 2K 166960K 64 0 sysctl 2 0K 0K 166960K 2 0 counters 31 17K 18K 166960K 35 0 ioctlops 0 0K 4K 166960K 57 0 iov 0 0K 18K 166960K 25 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1437 90K 90K 166960K 1700 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 0K 166960K 14 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 14 49K 97K 166960K 395 0 sigio 0 0K 0K 166960K 8 0 proc 61 59K 124K 166960K 525 0 subproc 104 6K 6K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 31 0 in_multi 93 6K 7K 166960K 121 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 399 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 208 72K 81K 166960K 4950 0 UVM aobj 40 2K 2K 166960K 41 0 pinsyscall 35 70K 96K 166960K 1438 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 20 0 NDP 12 0K 1K 166960K 36 0 temp 48 6808K 6872K 166960K 13394 0 kqueue 13 20K 31K 166960K 74 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 120 126 0 123 3 0 3 3 0 8 2 rtentry 112 134 0 31 4 0 4 4 0 8 0 unpcb 144 340 0 291 4 0 4 4 0 8 1 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 130 0 126 4 0 4 4 0 8 3 arp 88 21 0 5 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 44 0 44 1 0 1 1 0 8 1 inpcb 336 434 0 427 7 0 7 7 0 8 6 nd6 104 33 0 11 1 0 1 1 0 8 0 pkpcb 40 68 0 68 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 pfrktable 1344 2 0 2 1 0 1 1 0 8 1 pftag 88 2 0 2 1 0 1 1 0 8 1 pfrule 1344 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 549 0 133 29 0 29 29 0 8 2 art_table 32 553 0 133 4 0 4 4 0 8 0 art_node 16 133 0 40 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 10 0 1 1 0 1 1 0 8 0 shmpl 112 38 0 1 2 0 2 2 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1997 0 498 95 0 95 95 0 8 1 ffsino 240 1998 0 498 89 0 89 89 0 8 0 nchpl 144 2527 0 848 63 0 63 63 0 8 0 uvmvnodes 80 2347 0 0 48 0 48 48 0 8 0 vnodes 216 2347 0 0 131 0 131 131 0 8 0 namei 1024 8273 0 8271 2 0 2 2 0 8 1 kstatmem 264 32 0 8 2 0 2 2 0 8 0 scxspl 216 7404 0 7404 8 0 8 8 1 8 8 plimitpl 152 58 0 42 1 0 1 1 0 8 0 sigapl 424 692 0 629 8 0 8 8 0 8 0 futexpl 64 4141 0 4138 1 0 1 1 0 8 0 knotepl 120 12414 0 12367 10 0 10 10 0 8 7 kqueuepl 184 89 0 80 1 0 1 1 0 8 0 pipepl 288 131 0 104 3 0 3 3 0 8 0 fdescpl 432 655 0 629 5 0 5 5 0 8 1 filepl 120 3551 0 3272 12 0 12 12 0 8 2 lockfpl 104 91 0 89 1 0 1 1 0 8 0 lockfspl 48 42 0 40 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 388 0 376 1 0 1 1 0 8 0 zombiepl 144 630 0 629 1 0 1 1 0 8 0 processpl 1096 692 0 629 5 0 5 5 0 8 0 procpl 648 1066 0 995 7 0 7 7 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 504 972 0 913 16 2 14 14 0 8 5 mcl64k 65536 9 0 9 1 0 1 1 0 8 1 mcl8k 8192 11 0 11 1 0 1 1 0 8 1 mcl4k 4096 3008 0 2957 16 1 15 16 0 8 8 mcl2k 2048 509 0 508 2 0 2 2 0 8 1 mtagpl 96 13 0 7 1 0 1 1 0 8 0 mbufpl 256 7547 0 7367 21 0 21 21 0 8 8 bufpl 280 2552 0 96 176 0 176 176 0 8 0 anonpl 24 165628 0 160576 45 0 45 45 0 187 12 amapchunkpl 152 16280 0 15858 25 0 25 25 0 158 4 amappl16 200 4413 0 4261 17 3 14 14 0 8 5 amappl15 192 12 0 12 1 0 1 1 0 8 1 amappl14 184 110 0 100 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 0 1 1 0 8 1 amappl12 168 1293 0 1267 3 0 3 3 0 8 1 amappl11 160 49 0 39 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 0 1 1 0 8 1 amappl9 144 114 0 114 1 0 1 1 0 8 1 amappl8 136 21 0 20 1 0 1 1 0 8 0 amappl7 128 100 0 90 1 0 1 1 0 8 0 amappl6 120 174 0 172 1 0 1 1 0 8 0 amappl5 112 131 0 122 1 0 1 1 0 8 0 amappl4 104 282 0 269 1 0 1 1 0 8 0 amappl3 96 3367 0 3275 3 0 3 3 0 8 0 amappl2 88 661 0 602 2 0 2 2 0 8 0 amappl1 80 8048 0 7539 13 0 13 13 0 8 1 amappl 88 4578 0 4427 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 40 0 1 1 0 1 1 0 8 0 uaddrrnd 24 655 0 629 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 655 0 629 1 0 1 1 0 8 0 vmmpekpl 168 6393 0 6351 3 0 3 3 0 8 0 vmmpepl 168 47713 0 46002 88 0 88 88 0 357 4 vmsppl 344 654 0 629 4 0 4 4 0 8 1 rwobjpl 24 19614 0 16275 21 0 21 21 0 8 0 pdppl 4096 1316 0 1258 98 32 66 82 0 8 8 pvpl 32 338673 0 328996 104 0 104 104 0 265 16 pmappl 216 654 0 629 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 395 0 35 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a530030,ffff8000376c31b0,ffff8000376c3100) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376c31b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3d1fb569d0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a530030,ffffffffffffffff,0,a0001430,fffffd8068b22a20,fffffd807f7d76e8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8068b22a20,4,20001430,ffffffff,ffff80002a530030) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a530030,ffff8000376c31b0,ffff8000376c3100) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376c31b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3d1fb569d0, count: -5