uvm_fault(0xfffffd806c0aa018, 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 *177774 15721 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7ccfb0,ffff80003c945380,ffff80003c9452d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c945380) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c945380) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x518c92459d0, 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(0xfffffd806c0aa018, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7ccfb0,ffff80003c945380,ffff80003c9452d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c945380) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c945380) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x518c92459d0, count: -5 ddb> show registers rdi 0xffff800031d0a000 rsi 0x872 rbp 0xffff80003c9450a0 rbx 0xfffffd8007bfb618 rdx 0xffff800031d0a000 rcx 0x871 rax 0xffffffff82694d33 ktrops+0x43 r8 0xfffffd806bbf7510 r9 0xfffffd8007bfb618 r10 0xd7ec3d02da9b20f0 r11 0xed8ed460f88e8166 r12 0xffff80002a7ccfb0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000510 __kernel_virt_to_phys+0x510 rip 0xffffffff82694d48 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c945020 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=177774 pid=15721 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=75, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7cdca8,0xffff80002a7cd258 process=0xffff800037528d98 user=0xffff80003c940000, vmspace=0xfffffd806c0aa018 estcpu=25, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 9493 98360 70519 0 2 0 syz-executor 9493 442180 70519 0 3 0x4000080 fsleep syz-executor 78769 499676 64501 0 2 0xc80 syz-executor 78769 445994 64501 0 3 0x4000080 lockf syz-executor 78769 227285 64501 0 3 0x4000080 fsleep syz-executor 78769 80306 64501 0 3 0x4000080 fsleep syz-executor 15721 139882 21425 0 2 0 syz-executor *15721 177774 21425 0 7 0x4000000 syz-executor 65489 426460 56837 0 3 0x80 nanoslp syz-executor 65489 457945 56837 0 3 0x4000080 ttyin syz-executor 65489 353478 56837 0 3 0x4000080 fsleep syz-executor 93142 319222 7731 -1 2 0xc90 syz-executor 93142 24040 7731 -1 3 0x4000090 kqread syz-executor 93142 501328 7731 -1 3 0x4000090 kqpoll syz-executor 93142 466097 7731 -1 3 0x4000090 fsleep syz-executor 61500 387744 80332 0 2 0x2 syz-executor 7731 359750 80332 0 2 0xc82 syz-executor 13766 68256 80332 0 2 0x2 syz-executor 21425 202494 80332 0 2 0xc82 syz-executor 64501 42049 80332 0 3 0x82 nanoslp syz-executor 45331 58342 80332 0 2 0x2 syz-executor 56837 194704 80332 0 2 0xc82 syz-executor 70519 442105 80332 0 3 0x82 nanoslp syz-executor 80332 412145 11004 0 3 0x82 kqread syz-executor 11004 111371 40383 0 3 0x10008a sigsusp ksh 40383 422109 84134 0 3 0x98 kqread sshd-session 84134 480421 31991 0 3 0x92 kqread sshd-session 84579 117093 1 0 3 0x100083 ttyin getty 31991 368246 1 0 3 0x88 kqread sshd 53877 341636 47300 73 3 0x1100090 kqread syslogd 47300 253748 1 0 3 0x100082 sbwait syslogd 58292 212250 1 0 3 0x100080 kqread resolvd 61566 190244 29685 77 3 0x100092 kqread dhcpleased 88698 390981 29685 77 3 0x100092 kqread dhcpleased 29685 115030 1 0 3 0x80 kqread dhcpleased 40479 170098 0 0 3 0x14200 bored smr 48307 82829 0 0 2 0x14200 zerothread 72945 8811 0 0 3 0x14200 aiodoned aiodoned 77567 494464 0 0 3 0x14200 syncer update 95918 453948 0 0 3 0x14200 cleaner cleaner 66287 180707 0 0 3 0x14200 reaper reaper 64966 84811 0 0 3 0x14200 pgdaemon pagedaemon 91891 488638 0 0 3 0x14200 bored viomb 80484 176259 0 0 3 0x40014200 acpi0 acpi0 81462 468998 0 0 3 0x14200 bored softnet0 28619 513747 0 0 3 0x14200 bored systqmp 84399 483210 0 0 3 0x14200 bored systq 26605 209803 0 0 3 0x40014200 tmoslp softclock 18718 400092 0 0 3 0x40014200 idle0 1 367939 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 10183 11235K 12442K 166960K 11577 0 pcb 20 12K 12K 166960K 32 0 rtable 237 6K 6K 166960K 351 0 pf 30 12K 14K 166960K 33 0 ifaddr 42 7K 7K 166960K 45 0 ifgroup 50 2K 2K 166960K 52 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 17K 166960K 33 0 ioctlops 0 0K 4K 166960K 34 0 iov 0 0K 12K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1410 89K 89K 166960K 1549 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 89K 166960K 176 0 sigio 0 0K 0K 166960K 1 0 proc 61 67K 91K 166960K 478 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 3 0 in_multi 99 7K 7K 166960K 99 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 359 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 205 150K 167K 166960K 3292 0 UVM aobj 3 2K 2K 166960K 5 0 pinsyscall 36 72K 95K 166960K 1234 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 11 0K 2K 166960K 28 0 temp 38 8638K 8710K 166960K 3963 0 kqueue 16 24K 26K 166960K 30 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 36 0 33 1 0 1 1 0 8 0 rtentry 136 111 0 1 4 0 4 4 0 8 0 unpcb 144 55 0 39 2 0 2 2 0 8 1 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 16 0 10 1 0 1 1 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 inpcb 328 81 0 69 2 0 2 2 0 8 1 nd6 112 24 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 452 0 0 29 0 29 29 0 8 0 art_table 40 453 0 0 5 0 5 5 0 8 0 art_node 32 111 0 11 1 0 1 1 0 8 0 semupl 112 2 0 1 1 0 1 1 0 8 0 semapl 112 5 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 2 1 0 1 1 0 8 1 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1720 0 209 95 0 95 95 0 8 0 ffsino 256 1721 0 209 95 0 95 95 0 8 0 nchpl 144 1978 0 281 64 0 64 64 0 8 0 vnodes 216 1887 0 0 105 0 105 105 0 8 0 namei 1024 6026 0 6023 2 0 2 2 0 8 1 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 6107 0 6107 2 0 2 2 1 8 2 plimitpl 152 99 0 82 1 0 1 1 0 8 0 sigapl 424 459 0 419 6 0 6 6 0 8 1 knotepl 120 3696 0 3645 2 0 2 2 0 8 0 kqueuepl 184 64 0 20 3 0 3 3 0 8 0 pipepl 304 114 0 87 3 0 3 3 0 8 0 fdescpl 448 446 0 419 5 0 5 5 0 8 1 filepl 120 2033 0 1681 11 0 11 11 0 8 0 lockfpl 104 18 0 14 1 0 1 1 0 8 0 lockfspl 48 10 0 7 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 419 0 407 1 0 1 1 0 8 0 zombiepl 144 419 0 419 1 0 1 1 0 8 1 processpl 1152 459 0 419 4 0 4 4 0 8 0 procpl 664 525 0 475 5 0 5 5 0 8 0 sockpl 552 208 0 177 4 0 4 4 0 8 1 mcl64k 65536 38 0 38 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2507 0 2456 15 0 15 15 0 8 7 mcl2k 2048 345 0 342 1 0 1 1 0 8 0 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4611 0 4459 11 0 11 11 0 8 0 bufpl 280 2426 0 118 165 0 165 165 0 8 0 anonpl 24 96400 0 93496 23 0 23 23 0 187 2 amapchunkpl 152 9591 0 9197 33 0 33 33 0 158 15 amappl16 200 1750 0 1729 5 0 5 5 0 8 2 amappl15 192 18 0 18 1 0 1 1 0 8 1 amappl14 184 30 0 30 1 0 1 1 0 8 1 amappl13 176 401 0 400 1 0 1 1 0 8 0 amappl12 168 780 0 744 2 0 2 2 0 8 0 amappl11 160 9 0 9 1 0 1 1 0 8 1 amappl10 152 44 0 34 1 0 1 1 0 8 0 amappl9 144 255 0 253 1 0 1 1 0 8 0 amappl8 136 27 0 26 1 0 1 1 0 8 0 amappl7 128 88 0 87 1 0 1 1 0 8 0 amappl6 120 258 0 247 1 0 1 1 0 8 0 amappl5 112 73 0 66 1 0 1 1 0 8 0 amappl4 104 365 0 342 1 0 1 1 0 8 0 amappl3 96 1425 0 1354 3 0 3 3 0 8 0 amappl2 88 548 0 480 2 0 2 2 0 8 0 amappl1 80 8779 0 8251 13 0 13 13 0 8 0 amappl 88 2604 0 2467 4 0 4 4 0 92 0 uvmvnodes 80 1887 0 0 39 0 39 39 0 8 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 4 0 2 1 0 1 1 0 8 0 uaddrrnd 24 446 0 419 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 446 0 419 1 0 1 1 0 8 0 vmmpekpl 168 5250 0 5218 2 0 2 2 0 8 0 vmmpepl 168 36215 0 34569 81 0 81 81 0 357 2 vmsppl 368 445 0 419 4 0 4 4 0 8 1 rwobjpl 40 14929 0 12247 28 0 28 28 0 8 0 pdppl 4096 899 0 838 93 24 69 79 0 8 8 pvpl 32 219693 0 211788 80 0 80 80 0 265 6 pmappl 216 445 0 419 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 361 0 24 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7ccfb0,ffff80003c945380,ffff80003c9452d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c945380) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c945380) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x518c92459d0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7ccfb0,ffffffffffffffff,0,80000510,fffffd806bbf7510,fffffd8007bfb618) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806bbf7510,4,510,0,ffff80002a7ccfb0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7ccfb0,ffff80003c945380,ffff80003c9452d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c945380) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c945380) at syscall+0x962 sys/arch/amd64/amd64/trap.c:765 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x518c92459d0, count: -5