uvm_fault(0xfffffd806c29f570, 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 *169737 32254 0 0 0x4000000 0 syz-executor ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000327f76f8,ffff8000376cd380,ffff8000376cd2d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376cd380) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84749cb7ae0, 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(0xfffffd806c29f570, 0xf, 0, 1) -> e ddb> trace ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000327f76f8,ffff8000376cd380,ffff8000376cd2d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376cd380) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84749cb7ae0, count: -5 ddb> show registers rdi 0xffff80002d9e0000 rsi 0x6bc5 __ALIGN_SIZE+0x5bc5 rbp 0xffff8000376cd0a0 rbx 0xfffffd807f7d7680 rdx 0xffff80002d9e0000 rcx 0x6bc4 __ALIGN_SIZE+0x5bc4 rax 0xffffffff816dcd03 ktrops+0x43 r8 0xfffffd80761d67f0 r9 0xfffffd807f7d7680 r10 0x635038678ee31b2e r11 0xbfe36c64da7e286f r12 0xffff8000327f76f8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000112 __kernel_virt_to_phys+0x112 rip 0xffffffff816dcd18 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000376cd020 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=169737 pid=32254 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=0xffff8000327f7980,0xffffffff835621d8 process=0xffff8000ffff1140 user=0xffff8000376c8000, vmspace=0xfffffd806c29f570 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 32254 140308 97056 0 2 0 syz-executor *32254 169737 97056 0 7 0x4000000 syz-executor 45703 481222 58038 0 2 0 syz-executor 45703 275072 58038 0 3 0x4000080 fsleep syz-executor 45703 12983 58038 0 3 0x4000080 fsleep syz-executor 41113 513902 0 0 3 0x14280 nfsidl nfsio 42807 136580 0 0 3 0x14280 nfsidl nfsio 69036 467239 0 0 3 0x14280 nfsidl nfsio 79378 441123 0 0 3 0x14280 nfsidl nfsio 72567 348739 0 0 3 0x14280 nfsidl nfsio 343 205419 0 0 3 0x14280 nfsidl nfsio 48413 22136 0 0 3 0x14280 nfsidl nfsio 40610 260924 0 0 3 0x14280 nfsidl nfsio 11870 128468 0 0 3 0x14280 nfsidl nfsio 34026 426846 0 0 3 0x14280 nfsidl nfsio 15809 401498 0 0 3 0x14280 nfsidl nfsio 40827 122730 0 0 3 0x14280 nfsidl nfsio 50665 133348 0 0 3 0x14280 nfsidl nfsio 13340 19208 0 0 3 0x14280 nfsidl nfsio 89556 44285 0 0 3 0x14280 nfsidl nfsio 82926 434955 0 0 3 0x14280 nfsidl nfsio 94926 35598 0 0 3 0x14280 nfsidl nfsio 7476 185415 0 0 3 0x14280 nfsidl nfsio 90503 3082 0 0 3 0x14280 nfsidl nfsio 57469 485508 0 0 3 0x14280 nfsidl nfsio 72155 457870 85920 0 3 0x80 nanoslp syz-executor 72155 344785 85920 0 3 0x4000080 kqpoll syz-executor 72155 223919 85920 0 3 0x4000080 fsleep syz-executor 72155 369296 85920 0 3 0x4000080 fsleep syz-executor 71060 412938 68772 0 3 0x80 nanoslp syz-executor 71060 513447 68772 0 3 0x4000080 kqread syz-executor 71060 66301 68772 0 3 0x4000080 fsleep syz-executor 85920 241548 70340 0 2 0x482 syz-executor 68772 461456 70340 0 2 0x482 syz-executor 45113 380245 70340 0 2 0x2 syz-executor 60177 487143 70340 0 3 0x82 nanoslp syz-executor 58038 415565 70340 0 2 0x482 syz-executor 97056 113225 70340 0 2 0x482 syz-executor 48264 483616 70340 0 2 0x2 syz-executor 7709 326137 70340 0 3 0x82 nanoslp syz-executor 70340 152978 58374 0 2 0x2 syz-executor 58374 152476 75285 0 3 0x10008a sigsusp ksh 75285 150587 71552 0 3 0x98 kqread sshd-session 71552 434994 53675 0 3 0x92 kqread sshd-session 18479 399036 1 0 3 0x100083 ttyin getty 53675 60573 1 0 3 0x88 kqread sshd 81435 253470 43736 73 3 0x1100090 kqread syslogd 43736 155291 1 0 3 0x100082 sbwait syslogd 3061 117642 1 0 3 0x100080 kqread resolvd 42296 253480 15470 77 3 0x100092 kqread dhcpleased 99972 171466 15470 77 3 0x100092 kqread dhcpleased 15470 455104 1 0 3 0x80 kqread dhcpleased 64245 113491 0 0 2 0x14200 smr 94093 163162 0 0 2 0x14200 zerothread 25182 48261 0 0 3 0x14200 aiodoned aiodoned 93919 332087 0 0 3 0x14200 syncer update 51990 348881 0 0 3 0x14200 cleaner cleaner 82245 368659 0 0 3 0x14200 reaper reaper 64812 484261 0 0 3 0x14200 pgdaemon pagedaemon 16756 191601 0 0 3 0x14200 bored viomb 76450 176911 0 0 3 0x40014200 acpi0 acpi0 94367 266433 0 0 3 0x14200 bored softnet3 3765 310593 0 0 3 0x14200 bored softnet2 80261 144351 0 0 3 0x14200 bored softnet1 7859 500020 0 0 2 0x14200 softnet0 8547 100377 0 0 3 0x14200 bored systqmp 50270 275328 0 0 3 0x14200 bored systq 71779 43863 0 0 2 0x40014200 softclock 26836 265850 0 0 3 0x40014200 idle0 1 166559 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 10184 10150K 10226K 166960K 11695 0 pcb 18 13K 14K 166960K 91 0 rtable 218 6K 7K 166960K 386 0 pf 30 12K 20K 166960K 37 0 ifaddr 41 7K 7K 166960K 47 0 ifgroup 50 2K 2K 166960K 52 0 sysctl 2 0K 0K 166960K 2 0 counters 30 17K 17K 166960K 31 0 ioctlops 0 0K 4K 166960K 43 0 iov 0 0K 16K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1373 86K 87K 166960K 1502 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 9 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 16 57K 85K 166960K 325 0 sigio 0 0K 0K 166960K 10 0 proc 60 59K 91K 166960K 495 0 subproc 104 6K 6K 166960K 104 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 44 0 in_multi 89 6K 7K 166960K 104 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 360 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 218 73K 73K 166960K 4221 0 UVM aobj 11 2K 2K 166960K 11 0 pinsyscall 37 74K 92K 166960K 1338 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 10 0 NDP 11 0K 2K 166960K 28 0 temp 39 6807K 6872K 166960K 13153 0 kqueue 15 24K 30K 166960K 55 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 50 0 47 1 0 1 1 0 8 0 rtentry 112 120 0 20 4 0 4 4 0 8 0 unpcb 144 565 0 545 12 5 7 7 0 8 6 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpqe 32 39 0 39 1 1 0 1 0 8 0 tcpcb 808 130 0 126 9 1 8 8 0 8 7 arp 88 20 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 336 392 0 381 9 2 7 7 0 8 5 nd6 104 27 0 3 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 0 1 1 0 8 1 pfrule 1344 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 490 0 81 29 0 29 29 0 8 2 art_table 32 491 0 81 4 0 4 4 0 8 0 art_node 16 118 0 29 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1901 0 398 95 0 95 95 0 8 0 ffsino 240 1901 0 398 89 0 89 89 0 8 0 nchpl 144 2370 0 688 63 0 63 63 0 8 0 uvmvnodes 80 2078 0 0 43 0 43 43 0 8 0 vnodes 216 2078 0 0 116 0 116 116 0 8 0 namei 1024 7875 0 7874 2 1 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 1 1 1 0 8 1 scxspl 216 6947 0 6947 9 7 2 8 1 8 2 plimitpl 152 98 0 80 1 0 1 1 0 8 0 sigapl 424 622 0 558 8 0 8 8 0 8 0 futexpl 64 3338 0 3333 1 0 1 1 0 8 0 knotepl 120 9427 0 9376 5 0 5 5 0 8 3 kqueuepl 184 102 0 89 3 0 3 3 0 8 2 pipepl 288 249 0 221 8 1 7 7 0 8 4 fdescpl 432 586 0 558 4 0 4 4 0 8 0 filepl 120 3686 0 3434 18 3 15 15 0 8 6 lockfpl 104 89 0 87 1 0 1 1 0 8 0 lockfspl 48 42 0 40 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 30 0 14 1 0 1 1 0 8 0 ucredpl 104 574 0 562 1 0 1 1 0 8 0 zombiepl 144 560 0 558 2 1 1 1 0 8 0 processpl 1096 622 0 558 5 0 5 5 0 8 0 procpl 648 931 0 859 7 0 7 7 0 8 0 sockpl 504 1016 0 983 41 27 14 25 0 8 8 mcl64k 65536 4 0 4 2 1 1 1 0 8 1 mcl16k 16384 2 0 2 1 1 0 1 0 8 0 mcl8k 8192 10 0 9 1 0 1 1 0 8 0 mcl4k 4096 5 0 5 1 1 0 1 0 8 0 mcl2k 2048 5102 0 4995 27 13 14 26 0 8 0 mtagpl 96 16 0 8 1 0 1 1 0 8 0 mbufpl 256 7962 0 7736 19 0 19 19 0 8 4 bufpl 280 2499 0 95 172 0 172 172 0 8 0 anonpl 24 67715 0 64516 32 11 21 32 0 187 0 amapchunkpl 152 12544 0 12073 27 5 22 25 0 158 0 amappl16 200 358 0 334 2 0 2 2 0 8 0 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 97 0 87 1 0 1 1 0 8 0 amappl13 176 1 0 1 1 1 0 1 0 8 0 amappl12 168 1192 0 1164 2 0 2 2 0 8 0 amappl11 160 40 0 30 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 234 0 234 1 1 0 1 0 8 0 amappl8 136 13 0 12 1 0 1 1 0 8 0 amappl7 128 90 0 79 1 0 1 1 0 8 0 amappl6 120 153 0 151 1 0 1 1 0 8 0 amappl5 112 116 0 108 1 0 1 1 0 8 0 amappl4 104 275 0 260 1 0 1 1 0 8 0 amappl3 96 2461 0 2357 3 0 3 3 0 8 0 amappl2 88 613 0 553 2 0 2 2 0 8 0 amappl1 80 7779 0 7266 12 0 12 12 0 8 0 amappl 88 3866 0 3702 6 1 5 5 0 92 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 128 253 0 253 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 586 0 558 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 586 0 558 1 0 1 1 0 8 0 vmmpekpl 168 6182 0 6143 2 0 2 2 0 8 0 vmmpepl 168 38773 0 37092 79 0 79 79 0 357 1 vmsppl 344 585 0 558 4 1 3 4 0 8 0 rwobjpl 24 13926 0 10998 18 0 18 18 0 8 0 pdppl 4096 1178 0 1116 92 26 66 76 0 8 4 pvpl 32 229410 0 220208 94 11 83 91 0 265 2 pmappl 216 585 0 558 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 433 0 77 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000327f76f8,ffff8000376cd380,ffff8000376cd2d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376cd380) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84749cb7ae0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff8000327f76f8,ffffffffffffffff,0,80000112,fffffd80761d67f0,fffffd807f7d7680) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80761d67f0,4,112,0,ffff8000327f76f8) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff8000327f76f8,ffff8000376cd380,ffff8000376cd2d0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff8000376cd380) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x84749cb7ae0, count: -5