uvm_fault(0xfffffd8063bdb720, 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 * 37423 12352 0 0 0x4000000 0 syz-executor ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a88e7b0,ffff80003ca37300,ffff80003ca37250) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca37300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19783266ee0, 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(0xfffffd8063bdb720, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a88e7b0,ffff80003ca37300,ffff80003ca37250) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca37300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19783266ee0, count: -5 ddb> show registers rdi 0xffff80002a88e7b0 rsi 0xffffffffffffffff rbp 0xffff80003ca37020 rbx 0xfffffd807f7d7750 rdx 0 rcx 0x80000538 __kernel_virt_to_phys+0x538 rax 0xffff80002a88e7b0 r8 0xfffffd8068958478 r9 0xfffffd807f7d7750 r10 0xc33e0c09d44d60e2 r11 0xd7474e899a35e14c r12 0xffff80002a88e7b0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000538 __kernel_virt_to_phys+0x538 rip 0xffffffff82e7cc28 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003ca36fa0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=37423 pid=12352 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=0xffff80002a88f6e0,0xffffffff83573018 process=0xffff800035dd95a8 user=0xffff80003ca32000, vmspace=0xfffffd8063bdb720 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 12352 188974 91378 0 2 0 syz-executor *12352 37423 91378 0 7 0x4000000 syz-executor 40097 54439 14779 60929 2 0x490 syz-executor 40097 19209 14779 60929 3 0x4000090 kqpoll syz-executor 40097 502134 14779 60929 3 0x4000090 fsleep syz-executor 22563 310375 54799 0 2 0x480 syz-executor 22563 359797 54799 0 3 0x4000080 kqsel syz-executor 20865 281389 69573 0 3 0x80 nanoslp syz-executor 20865 343278 69573 0 3 0x4000080 rest syz-executor 20865 329330 69573 0 3 0x4000080 fsleep syz-executor 20865 322602 69573 0 3 0x4000080 fsleep syz-executor 69533 1031 34613 -1 2 0x490 syz-executor 69533 381041 34613 -1 3 0x4000090 kqsel syz-executor 69533 345990 34613 -1 3 0x4000090 fsleep syz-executor 29859 345679 0 0 3 0x14200 bored sosplice 59809 287982 54980 0 2 0x482 syz-executor 34613 6578 54980 0 3 0x82 nanoslp syz-executor 13909 229074 54980 0 2 0x2 syz-executor 54799 116749 54980 0 2 0x482 syz-executor 69573 415164 54980 0 3 0x82 nanoslp syz-executor 91378 322696 54980 0 2 0x482 syz-executor 58875 30409 54980 0 3 0x82 wait syz-executor 14779 383375 54980 0 3 0x82 nanoslp syz-executor 54980 48035 29400 0 2 0x2 syz-executor 29400 428616 1432 0 3 0x10008a sigsusp ksh 1432 245246 3706 0 3 0x98 kqread sshd-session 3706 368667 66199 0 3 0x92 kqread sshd-session 13399 445949 1 0 3 0x100083 ttyin getty 66199 451535 1 0 3 0x88 kqread sshd 95384 25423 44208 73 3 0x1100090 kqread syslogd 44208 386423 1 0 3 0x100082 sbwait syslogd 73310 101869 1 0 3 0x100080 kqread resolvd 63684 81306 73191 77 3 0x100092 kqread dhcpleased 42640 353942 73191 77 3 0x100092 kqread dhcpleased 73191 220641 1 0 3 0x80 kqread dhcpleased 41576 401345 0 0 3 0x14200 bored smr 70006 362440 0 0 2 0x14200 zerothread 66642 68273 0 0 3 0x14200 aiodoned aiodoned 40758 29136 0 0 3 0x14200 syncer update 47102 17604 0 0 3 0x14200 cleaner cleaner 23665 131383 0 0 3 0x14200 reaper reaper 4419 21992 0 0 3 0x14200 pgdaemon pagedaemon 73499 73104 0 0 3 0x14200 bored viomb 18288 170403 0 0 3 0x40014200 acpi0 acpi0 24006 451326 0 0 3 0x14200 bored softnet3 20529 325304 0 0 3 0x14200 bored softnet2 34651 308254 0 0 3 0x14200 bored softnet1 5723 215321 0 0 3 0x14200 bored softnet0 55294 38722 0 0 3 0x14200 bored systqmp 92588 364086 0 0 3 0x14200 bored systq 15894 360727 0 0 2 0x40014200 softclock 5053 481841 0 0 3 0x40014200 idle0 1 12492 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 10180 11168K 11316K 166960K 11544 0 pcb 17 14K 16K 166960K 60 0 rtable 186 5K 7K 166960K 375 0 pf 28 12K 13K 166960K 42 0 ifaddr 38 6K 7K 166960K 50 0 ifgroup 46 2K 2K 166960K 61 0 sysctl 3 1K 1K 166960K 3 0 counters 29 17K 17K 166960K 34 0 ioctlops 0 0K 4K 166960K 57 0 iov 0 0K 16K 166960K 88 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1400 88K 88K 166960K 1581 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 18 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 97K 166960K 385 0 sigio 0 0K 0K 166960K 4 0 proc 60 59K 124K 166960K 489 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 27 0 in_multi 88 6K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 382 0 fusefs mount 1 32K 32K 166960K 1 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 215 72K 73K 166960K 4778 0 UVM aobj 8 2K 2K 166960K 9 0 pinsyscall 38 76K 96K 166960K 1417 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 11 0K 1K 166960K 33 0 temp 52 6882K 6977K 166960K 7004 0 kqueue 16 26K 28K 166960K 60 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 56 0 52 1 0 1 1 0 8 0 rtentry 112 118 0 32 4 0 4 4 0 8 0 unpcb 144 276 0 258 2 0 2 2 0 8 1 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 185 0 181 11 0 11 11 0 8 10 arp 88 19 0 3 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 2 0 2 1 0 1 1 0 8 1 inpcb 344 472 0 462 16 0 16 16 0 8 14 nd6 104 26 0 6 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 507 0 104 29 0 29 29 0 8 2 art_table 32 508 0 104 4 0 4 4 0 8 0 art_node 16 117 0 39 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 14 0 4 1 0 1 1 0 8 0 shmpl 112 6 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2013 0 514 95 0 95 95 0 8 0 ffsino 248 2013 0 514 95 0 95 95 0 8 0 nchpl 144 2598 0 913 63 0 63 63 0 8 0 uvmvnodes 80 2254 0 0 46 0 46 46 0 8 0 vnodes 216 2254 0 0 126 0 126 126 0 8 0 namei 1024 7969 0 7969 1 0 1 1 0 8 1 kstatmem 264 30 0 10 2 0 2 2 0 8 0 scxspl 216 7882 0 7882 8 0 8 8 1 8 8 plimitpl 152 135 0 117 1 0 1 1 0 8 0 sigapl 424 667 0 621 7 0 7 7 0 8 1 futexpl 64 4213 0 4209 1 0 1 1 0 8 0 knotepl 120 12445 0 12390 9 0 9 9 0 8 7 kqueuepl 184 81 0 68 1 0 1 1 0 8 0 pipepl 296 124 0 97 3 0 3 3 0 8 0 fdescpl 440 649 0 620 5 0 5 5 0 8 1 filepl 120 3255 0 3036 12 0 12 12 0 8 4 lockfpl 104 102 0 100 1 0 1 1 0 8 0 lockfspl 48 30 0 28 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 494 0 481 1 0 1 1 0 8 0 zombiepl 144 623 0 621 1 0 1 1 0 8 0 processpl 1104 667 0 621 4 0 4 4 0 8 0 procpl 648 1034 0 979 6 0 6 6 0 8 1 sockpl 528 812 0 780 13 0 13 13 0 8 10 mcl64k 65536 9 0 9 1 0 1 1 0 8 1 mcl16k 16384 7 0 7 1 0 1 1 0 8 1 mcl12k 12288 5 0 5 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 14 0 14 1 0 1 1 0 8 1 mcl4k 4096 2767 0 2719 15 1 14 15 0 8 7 mcl2k 2048 392 0 357 5 0 5 5 0 8 0 mtagpl 96 8 0 5 1 0 1 1 0 8 0 mbufpl 256 6844 0 6657 16 0 16 16 0 8 3 bufpl 280 2867 0 128 196 0 196 196 0 8 0 anonpl 24 79370 0 76174 32 0 32 32 0 187 10 amapchunkpl 152 14394 0 13909 25 0 25 25 0 158 5 amappl16 200 614 0 580 4 0 4 4 0 8 1 amappl15 192 1 0 1 1 0 1 1 0 8 1 amappl14 184 116 0 105 1 0 1 1 0 8 0 amappl13 176 41 0 41 1 0 1 1 0 8 1 amappl12 168 1257 0 1228 2 0 2 2 0 8 0 amappl11 160 55 0 45 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 0 1 1 0 8 1 amappl9 144 252 0 252 1 0 1 1 0 8 1 amappl8 136 41 0 40 1 0 1 1 0 8 0 amappl7 128 115 0 104 1 0 1 1 0 8 0 amappl6 120 166 0 163 1 0 1 1 0 8 0 amappl5 112 126 0 120 1 0 1 1 0 8 0 amappl4 104 274 0 260 1 0 1 1 0 8 0 amappl3 96 2838 0 2728 3 0 3 3 0 8 0 amappl2 88 610 0 555 2 0 2 2 0 8 0 amappl1 80 8179 0 7658 12 0 12 12 0 8 1 amappl 88 4428 0 4260 5 0 5 5 0 92 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma2048 2048 2 0 2 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 128 254 0 254 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 8 0 1 1 0 1 1 0 8 0 uaddrrnd 24 649 0 620 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 649 0 620 1 0 1 1 0 8 0 vmmpekpl 168 6546 0 6514 2 0 2 2 0 8 0 vmmpepl 168 43416 0 41675 79 0 79 79 0 357 0 vmsppl 360 648 0 620 4 0 4 4 0 8 1 rwobjpl 32 15353 0 12240 26 0 26 26 0 8 0 pdppl 4096 1304 0 1240 96 30 66 82 0 8 2 pvpl 32 260118 0 250947 111 0 111 111 0 265 31 pmappl 216 648 0 620 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 280 0 31 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a88e7b0,ffff80003ca37300,ffff80003ca37250) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca37300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19783266ee0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a88e7b0,ffffffffffffffff,0,80000538,fffffd8068958478,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068958478,4,538,0,ffff80002a88e7b0) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a88e7b0,ffff80003ca37300,ffff80003ca37250) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003ca37300) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x19783266ee0, count: -5