uvm_fault(0xfffffd806c1a6c28, 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 * 97574 74422 0 0 0x4000000 0 syz-executor ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4f47c0,ffff80002d9a7040,ffff80002d9a6f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002d9a7040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f2f2cf95b0, 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(0xfffffd806c1a6c28, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4f47c0,ffff80002d9a7040,ffff80002d9a6f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002d9a7040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f2f2cf95b0, count: -5 ddb> show registers rdi 0xffff80002a4f47c0 rsi 0xffffffffffffffff rbp 0xffff80002d9a6d60 rbx 0xfffffd807f7d77b8 rdx 0 rcx 0x80000310 __kernel_virt_to_phys+0x310 rax 0xffff80002a4f47c0 r8 0xfffffd8069688b28 r9 0xfffffd807f7d77b8 r10 0x26b5b307350005b3 r11 0xddb392f471ff9621 r12 0xffff80002a4f47c0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000310 __kernel_virt_to_phys+0x310 rip 0xffffffff8269a2d8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002d9a6ce0 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=97574 pid=74422 tcnt=4 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=0xffff80002a4f4538,0xffff80002a4f5988 process=0xffff8000327f59c8 user=0xffff80002d9a2000, vmspace=0xfffffd806c1a6c28 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67417 236009 78792 0 2 0 syz-executor 67417 344647 78792 0 3 0x4000080 fsleep syz-executor 74422 51574 66719 0 2 0 syz-executor *74422 97574 66719 0 7 0x4000000 syz-executor 74422 148814 66719 0 3 0x4000080 fsleep syz-executor 74422 404024 66719 0 3 0x4000080 fsleep syz-executor 26260 450017 17465 0 2 0 syz-executor 26260 123099 17465 0 3 0x4000080 fsleep syz-executor 99336 127446 49179 0 2 0 syz-executor 99336 93204 49179 0 3 0x4000080 fsleep syz-executor 42690 28925 81456 0 2 0 syz-executor 42690 170919 81456 0 3 0x4000080 fsleep syz-executor 56428 515108 76140 0 2 0 syz-executor 56428 502686 76140 0 2 0x4000000 syz-executor 66719 451343 55504 0 3 0x82 nanoslp syz-executor 78792 295940 55504 0 3 0x82 nanoslp syz-executor 24692 100411 55504 0 2 0x2 syz-executor 81456 161543 55504 0 3 0x82 nanoslp syz-executor 69632 309849 55504 0 2 0x2 syz-executor 17465 381786 55504 0 3 0x82 nanoslp syz-executor 76140 246731 55504 0 3 0x82 nanoslp syz-executor 49179 517649 55504 0 3 0x82 nanoslp syz-executor 99940 455635 0 0 3 0x14200 acct acct 77502 466007 1 0 3 0x100083 ttyin getty 30910 72416 0 0 3 0x14280 nfsidl nfsio 33472 431366 0 0 3 0x14280 nfsidl nfsio 41745 51455 0 0 3 0x14280 nfsidl nfsio 95371 485800 0 0 3 0x14280 nfsidl nfsio 49048 76624 0 0 3 0x14280 nfsidl nfsio 92545 77297 0 0 3 0x14280 nfsidl nfsio 45601 176535 0 0 3 0x14280 nfsidl nfsio 83284 137006 0 0 3 0x14280 nfsidl nfsio 44343 289615 0 0 3 0x14280 nfsidl nfsio 24484 408251 0 0 3 0x14280 nfsidl nfsio 70106 509101 0 0 3 0x14280 nfsidl nfsio 58324 305435 0 0 3 0x14280 nfsidl nfsio 15843 68697 0 0 3 0x14280 nfsidl nfsio 81655 325865 0 0 3 0x14280 nfsidl nfsio 65123 215770 0 0 3 0x14280 nfsidl nfsio 25128 158884 0 0 3 0x14280 nfsidl nfsio 71124 497034 0 0 3 0x14280 nfsidl nfsio 16435 3144 0 0 3 0x14280 nfsidl nfsio 81562 60612 0 0 3 0x14280 nfsidl nfsio 85584 380155 0 0 3 0x14280 nfsidl nfsio 9909 297075 0 0 3 0x14200 bored sosplice 55504 273862 24449 0 2 0x2 syz-executor 24449 483554 8740 0 3 0x10008a sigsusp ksh 8740 116892 58989 0 3 0x98 kqread sshd-session 58989 90790 1 0 3 0x92 kqread sshd-session 23265 171367 33015 73 2 0x1100010 syslogd 33015 283733 1 0 3 0x100082 sbwait syslogd 30022 406080 1 0 3 0x100080 kqread resolvd 18390 316162 45584 77 3 0x100092 kqread dhcpleased 80300 407182 45584 77 3 0x100092 kqread dhcpleased 45584 358473 1 0 3 0x80 kqread dhcpleased 95203 461353 0 0 3 0x14200 bored smr 3599 483181 0 0 2 0x14200 zerothread 39781 130846 0 0 3 0x14200 aiodoned aiodoned 29389 351514 0 0 3 0x14200 syncer update 86610 421182 0 0 3 0x14200 cleaner cleaner 29803 201096 0 0 3 0x14200 reaper reaper 250 243944 0 0 3 0x14200 pgdaemon pagedaemon 79120 253196 0 0 3 0x14200 bored viomb 60967 107958 0 0 3 0x40014200 acpi0 acpi0 71664 486652 0 0 3 0x14200 bored softnet3 26667 373591 0 0 3 0x14200 bored softnet2 94179 487806 0 0 3 0x14200 bored softnet1 93278 59683 0 0 3 0x14200 bored softnet0 82482 320034 0 0 3 0x14200 bored systqmp 5507 441508 0 0 3 0x14200 bored systq 17096 95193 0 0 3 0x40014200 tmoslp softclock 77350 164774 0 0 3 0x40014200 idle0 1 389344 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 10215 11068K 11437K 166960K 15093 0 pcb 19 22K 26K 166960K 719 0 rtable 226 9K 9K 166960K 4193 0 pf 38 14K 270K 166960K 454 0 ifaddr 43 9K 9K 166960K 526 0 ifgroup 54 2K 2K 166960K 560 0 sysctl 4 1K 5K 166960K 10 0 counters 31 17K 17K 166960K 164 0 ioctlops 0 0K 4K 166960K 676 0 iov 0 0K 16K 166960K 380 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1560 98K 98K 166960K 5236 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 48 0 VM map 2 1K 1K 166960K 2 0 sem 25 197K 197K 166960K 111 0 dirhash 15 2K 3K 166960K 51 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 97K 166960K 4458 0 sigio 0 0K 0K 166960K 55 0 proc 60 59K 124K 166960K 3674 0 subproc 104 6K 7K 166960K 1483 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 617 0 in_multi 97 7K 7K 166960K 1392 0 ether_multi 1 0K 0K 166960K 27 0 mrt 1 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 2258 0 pfkey data 0 0K 0K 166960K 7 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 211 72K 104K 166960K 37148 0 UVM aobj 52 4K 4K 166960K 55 0 pinsyscall 35 70K 102K 166960K 8236 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 150 0 NDP 12 0K 2K 166960K 384 0 temp 76 6816K 6944K 166960K 135753 0 kqueue 12 18K 29K 166960K 490 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 120 556 0 553 4 3 1 3 0 8 0 rtentry 112 1521 0 1420 5 1 4 4 0 8 0 unpcb 144 3601 0 3584 17 13 4 6 0 8 3 syncache 336 9 0 9 3 3 0 1 0 8 0 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 808 986 0 983 25 17 8 8 0 8 7 arp 88 278 0 260 1 0 1 1 0 8 0 ipq 40 23 0 22 2 1 1 1 0 8 0 ipqe 40 392 0 391 2 1 1 1 0 8 0 inpcb 336 4634 0 4586 50 38 12 18 0 8 7 nd6 104 373 0 348 1 0 1 1 0 8 0 pkpcb 40 48 0 48 5 4 1 1 0 8 1 kcovpl 48 114 0 106 1 0 1 1 0 8 0 ppxss 1072 20 0 20 5 4 1 1 0 8 1 pfstscr 40 5 0 4 1 0 1 1 0 8 0 pfrktable 1344 4 0 4 4 4 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 4 0 4 4 4 0 1 0 8 0 pfstitem 24 12 0 2 1 0 1 1 0 8 0 pfstkey 128 149 0 137 1 0 1 1 0 8 0 pfstate 344 75 0 70 1 0 1 1 0 8 0 pfrule 1344 29 0 28 1 0 1 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 5582 0 5162 31 3 28 30 0 8 1 art_table 32 5585 0 5162 4 0 4 4 0 8 0 art_node 16 1479 0 1389 1 0 1 1 0 8 0 sysvmsgpl 40 73 0 71 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 104 0 81 1 0 1 1 0 8 0 shmpl 112 52 0 3 2 0 2 2 0 8 0 dirhash 1024 43 0 24 3 0 3 3 0 8 0 dino2pl 256 6785 0 5086 107 0 107 107 0 8 0 ffsino 240 6785 0 5086 102 1 101 101 0 8 0 nchpl 144 11029 0 9209 68 0 68 68 0 8 0 uvmvnodes 80 8084 0 0 165 0 165 165 0 8 0 vnodes 216 8084 0 0 450 0 450 450 0 8 0 namei 1024 49617 0 49616 4 3 1 2 0 8 0 kstatmem 264 290 0 266 2 0 2 2 0 8 0 scsiplug 72 10 0 10 3 2 1 1 0 8 1 scxspl 216 81805 0 81805 15 12 3 8 1 8 3 plimitpl 152 1043 0 1027 1 0 1 1 0 8 0 sigapl 424 4552 0 4487 9 1 8 8 0 8 0 futexpl 64 43097 0 43091 1 0 1 1 0 8 0 knotepl 120 188993 0 188948 57 47 10 17 0 8 8 kqueuepl 184 854 0 844 6 3 3 4 0 8 2 pipepl 288 793 0 765 9 2 7 7 0 8 4 fdescpl 432 4509 0 4482 5 1 4 5 0 8 0 filepl 120 27863 0 27552 29 16 13 16 0 8 3 lockfpl 104 1210 0 1208 2 1 1 2 0 8 0 lockfspl 48 482 0 480 1 0 1 1 0 8 0 sessionpl 144 129 0 122 1 0 1 1 0 8 0 pgrppl 48 280 0 265 1 0 1 1 0 8 0 ucredpl 104 4423 0 4412 1 0 1 1 0 8 0 zombiepl 144 5430 0 5430 3 2 1 1 0 8 1 processpl 1096 4552 0 4487 5 0 5 5 0 8 0 procpl 648 9231 0 9158 9 2 7 9 0 8 0 sosppl 168 22 0 22 5 4 1 1 0 8 1 sockpl 504 8969 0 8901 158 141 17 30 0 8 8 mcl64k 65536 91 0 91 6 5 1 1 0 8 1 mcl16k 16384 28 0 28 4 3 1 1 0 8 1 mcl12k 12288 19 0 19 5 4 1 1 0 8 1 mcl9k 9216 9 0 9 4 3 1 1 0 8 1 mcl8k 8192 165 0 165 6 5 1 1 0 8 1 mcl4k 4096 7402 0 7351 20 12 8 14 0 8 0 mcl2k2 2112 4 0 4 2 2 0 1 0 8 0 mcl2k 2048 5365 0 5365 14 12 2 9 0 8 2 mtagpl 96 145 0 141 2 1 1 2 0 8 0 mbufpl 256 46012 0 45864 55 37 18 25 0 8 7 bufpl 280 15168 0 6861 594 0 594 594 0 8 0 anonpl 24 625027 0 620010 187 114 73 95 0 187 20 amapchunkpl 152 134818 0 134308 130 85 45 49 0 158 22 amappl16 200 12291 0 12218 82 68 14 27 0 8 8 amappl15 192 14 0 14 3 2 1 1 0 8 1 amappl14 184 320 0 311 1 0 1 1 0 8 0 amappl13 176 7 0 7 2 2 0 1 0 8 0 amappl12 168 6802 0 6774 3 1 2 3 0 8 0 amappl11 160 52 0 41 1 0 1 1 0 8 0 amappl10 152 35 0 35 1 1 0 1 0 8 0 amappl9 144 133 0 132 2 1 1 1 0 8 0 amappl8 136 20 0 18 1 0 1 1 0 8 0 amappl7 128 311 0 302 1 0 1 1 0 8 0 amappl6 120 1229 0 1227 1 0 1 1 0 8 0 amappl5 112 555 0 546 1 0 1 1 0 8 0 amappl4 104 613 0 601 1 0 1 1 0 8 0 amappl3 96 23967 0 23871 5 1 4 4 0 8 1 amappl2 88 2159 0 2103 2 0 2 2 0 8 0 amappl1 80 26694 0 26265 15 5 10 14 0 8 0 amappl 88 35711 0 35551 6 1 5 5 0 92 0 dma65536 65536 2 0 2 2 1 1 1 0 8 1 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 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 128 256 0 256 2 1 1 1 0 8 1 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 54 0 3 1 0 1 1 0 8 0 uaddrrnd 24 4509 0 4482 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4509 0 4482 1 0 1 1 0 8 0 vmmpekpl 168 35145 0 35094 3 0 3 3 0 8 0 vmmpepl 168 276560 0 274967 132 48 84 94 0 357 9 vmsppl 344 4508 0 4482 4 1 3 4 0 8 0 rwobjpl 24 81723 0 72800 55 1 54 54 0 8 0 pdppl 4096 9024 0 8964 290 226 64 82 0 8 4 pvpl 32 2132922 0 2121623 717 470 247 277 0 265 131 pmappl 216 4508 0 4482 3 1 2 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 896 0 512 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4f47c0,ffff80002d9a7040,ffff80002d9a6f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002d9a7040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f2f2cf95b0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4f47c0,ffffffffffffffff,0,80000310,fffffd8069688b28,fffffd807f7d77b8) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd8069688b28,4,310,0,ffff80002a4f47c0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4f47c0,ffff80002d9a7040,ffff80002d9a6f90) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002d9a7040) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f2f2cf95b0, count: -5