uvm_fault(0xfffffd80657e3018, 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 *466176 17753 0 0 0x4000000 0 syz-executor ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c22a0,ffff80002a53d3f0,ffff80002a53d340) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a53d3f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbd845fb71e0, 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(0xfffffd80657e3018, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c22a0,ffff80002a53d3f0,ffff80002a53d340) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a53d3f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbd845fb71e0, count: -5 ddb> show registers rdi 0xffff800035c0c000 rsi 0xa8e rbp 0xffff80002a53d110 rbx 0xfffffd807f7d7750 rdx 0xffff800035c0c000 rcx 0xa8d rax 0xffffffff82a8f933 ktrops+0x43 r8 0xfffffd805c04fc08 r9 0xfffffd807f7d7750 r10 0xb36b48ca5f2207ce r11 0x2e83a05cd772e27c r12 0xffff80002a4c22a0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff82a8f948 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a53d090 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=466176 pid=17753 tcnt=3 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=0xffff80002a4d0020,0xffff80002a4c2028 process=0xffff800033e08028 user=0xffff80002a538000, vmspace=0xfffffd80657e3018 estcpu=25, cpticks=0, pctcpu=0.2, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 57072 348289 65456 0 2 0x100002 sh 90215 202901 99767 0 2 0 syz-executor 90215 227265 99767 0 2 0x4000000 syz-executor 65456 318710 46236 0 3 0x82 wait syz-executor 72285 86982 5504 0 2 0 syz-executor 72285 155504 5504 0 2 0x4000000 syz-executor 72285 327417 5504 0 3 0x4000000 inode syz-executor 11110 171139 92110 0 2 0 syz-executor 11110 286353 92110 0 3 0x4000080 fsleep syz-executor 11110 58406 92110 0 3 0x4000080 fsleep syz-executor 84501 147394 35076 0 2 0 syz-executor 84501 440881 35076 0 2 0x4000000 syz-executor 84501 173332 35076 0 2 0x4000000 syz-executor 17753 107379 27511 0 2 0 syz-executor 17753 370782 27511 0 3 0x4000080 sbwait syz-executor *17753 466176 27511 0 7 0x4000000 syz-executor 99767 246922 46236 0 2 0x3 syz-executor 22476 35121 1 0 3 0x3000 suspend syz-executor 22476 461352 1 0 2 0x4081000 syz-executor 27511 140096 46236 0 2 0x482 syz-executor 35076 350571 46236 0 2 0x482 syz-executor 78569 44172 46236 0 2 0x2 syz-executor 92110 427865 46236 0 2 0x482 syz-executor 65348 226139 46236 0 2 0x3 syz-executor 5504 121938 46236 0 2 0x482 syz-executor 85225 57405 0 0 3 0x14280 nfsidl nfsio 26633 21664 0 0 3 0x14280 nfsidl nfsio 86854 9532 0 0 3 0x14280 nfsidl nfsio 86506 164528 0 0 3 0x14280 nfsidl nfsio 32690 103744 0 0 3 0x14280 nfsidl nfsio 12709 168427 0 0 3 0x14280 nfsidl nfsio 24625 181460 0 0 3 0x14280 nfsidl nfsio 15592 189393 0 0 3 0x14280 nfsidl nfsio 56919 107029 0 0 3 0x14280 nfsidl nfsio 15908 505552 0 0 3 0x14280 nfsidl nfsio 43504 182966 0 0 3 0x14280 nfsidl nfsio 63554 63682 0 0 3 0x14280 nfsidl nfsio 82169 424532 0 0 3 0x14280 nfsidl nfsio 35462 336086 0 0 3 0x14280 nfsidl nfsio 10284 64182 0 0 3 0x14280 nfsidl nfsio 24189 412039 0 0 3 0x14280 nfsidl nfsio 55308 441930 0 0 3 0x14280 nfsidl nfsio 65095 442826 0 0 3 0x14280 nfsidl nfsio 16617 121524 0 0 3 0x14280 nfsidl nfsio 34823 401887 0 0 3 0x14280 nfsidl nfsio 34709 381752 1 0 3 0x100083 ttyin getty 69911 209412 0 0 3 0x14200 bored sosplice 46236 123290 44161 0 3 0x82 kqread syz-executor 44161 267955 87962 0 3 0x10008a sigsusp ksh 87962 249690 44345 0 3 0x98 kqread sshd-session 44345 263752 52704 0 3 0x92 kqread sshd-session 52704 326468 1 0 3 0x88 kqread sshd 95110 171560 64850 73 3 0x1100090 kqread syslogd 64850 178250 1 0 3 0x100082 sbwait syslogd 60409 96696 1 0 3 0x100080 kqread resolvd 84099 361059 32049 77 3 0x100092 kqread dhcpleased 33923 23620 32049 77 3 0x100092 kqread dhcpleased 32049 173795 1 0 3 0x80 kqread dhcpleased 81633 39639 0 0 3 0x14200 bored smr 55911 33940 0 0 2 0x14200 zerothread 68779 435630 0 0 3 0x14200 aiodoned aiodoned 52675 132381 0 0 3 0x14200 syncer update 75866 479810 0 0 3 0x14200 cleaner cleaner 17828 400542 0 0 3 0x14200 reaper reaper 41324 402924 0 0 3 0x14200 pgdaemon pagedaemon 59217 171498 0 0 3 0x14200 bored viomb 37144 508120 0 0 3 0x40014200 acpi0 acpi0 78268 499351 0 0 3 0x14200 bored softnet3 81177 254497 0 0 3 0x14200 bored softnet2 6575 455710 0 0 3 0x14200 bored softnet1 16204 104952 0 0 2 0x14200 softnet0 17080 481389 0 0 3 0x14200 bored systqmp 88124 326163 0 0 3 0x14200 bored systq 22812 378363 0 0 3 0x40014200 tmoslp softclock 19325 294947 0 0 3 0x40014200 idle0 1 2079 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 10192 14192K 18224K 166960K 13520 0 pcb 21 15K 16K 166960K 301 0 rtable 210 7K 8K 166960K 3261 0 pf 34 13K 268K 166960K 262 0 ifaddr 41 7K 8K 166960K 438 0 ifgroup 54 2K 2K 166960K 478 0 sysctl 4 1K 1K 166960K 4 0 counters 31 17K 17K 166960K 135 0 ioctlops 0 0K 4K 166960K 424 0 iov 0 0K 24K 166960K 211 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1516 95K 95K 166960K 3705 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 30 0 dirhash 15 2K 3K 166960K 27 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 17 61K 97K 166960K 2702 0 sigio 0 0K 0K 166960K 20 0 proc 61 67K 124K 166960K 3215 0 subproc 117 7K 8K 166960K 1314 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 275 0 in_multi 89 6K 7K 166960K 1153 0 ether_multi 1 0K 0K 166960K 11 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 1771 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 223 80K 108K 166960K 21741 0 UVM aobj 74 74K 74K 166960K 78 0 pinsyscall 38 76K 102K 166960K 6140 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 135 0 NDP 12 0K 2K 166960K 318 0 temp 74 6814K 6938K 166960K 80957 0 kqueue 14 22K 30K 166960K 223 0 SYN cache 2 2352K 2360K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 360 0 357 3 0 3 3 0 8 2 rtentry 112 1172 0 1077 5 1 4 4 0 8 1 unpcb 144 1472 0 1455 8 0 8 8 0 8 7 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 612 0 607 8 0 8 8 0 8 7 arp 88 211 0 194 1 0 1 1 0 8 0 ipq 40 11 0 11 1 0 1 1 0 8 1 ipqe 40 147 0 147 1 0 1 1 0 8 1 inpcb 336 2186 0 2168 9 1 8 8 0 8 6 nd6 104 311 0 290 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 kcovpl 48 101 0 92 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 0 1 0 1 1 0 8 0 pfstate 344 2 0 0 1 0 1 1 0 8 0 pfrule 1344 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 4697 0 4290 44 13 31 31 0 8 4 art_table 32 4700 0 4290 4 0 4 4 0 8 0 art_node 16 1163 0 1079 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 7 1 0 1 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 75 0 4 3 0 3 3 0 8 0 dirhash 1024 27 0 8 3 0 3 3 0 8 0 dino2pl 256 3927 0 2255 105 0 105 105 0 8 0 ffsino 240 3927 0 2255 99 0 99 99 0 8 0 nchpl 144 5891 0 4095 67 0 67 67 0 8 0 uvmvnodes 80 5981 0 0 123 0 123 123 0 8 0 vnodes 216 5981 0 0 333 0 333 333 0 8 0 namei 1024 29121 0 29117 7 2 5 5 0 8 4 kstatmem 264 232 0 208 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 57916 0 57916 11 3 8 8 1 8 8 plimitpl 152 481 0 464 1 0 1 1 0 8 0 sigapl 424 2820 0 2754 9 1 8 8 0 8 0 futexpl 64 19161 0 19159 1 0 1 1 0 8 0 knotepl 120 48781 0 48486 20 10 10 11 0 8 1 kqueuepl 184 457 0 447 4 0 4 4 0 8 3 pipepl 288 554 0 526 5 0 5 5 0 8 2 fdescpl 432 2782 0 2753 5 1 4 5 0 8 0 filepl 120 14212 0 13940 15 0 15 15 0 8 5 lockfpl 104 525 0 522 1 0 1 1 0 8 0 lockfspl 48 228 0 225 1 0 1 1 0 8 0 sessionpl 144 116 0 108 1 0 1 1 0 8 0 pgrppl 48 229 0 212 1 0 1 1 0 8 0 ucredpl 104 1637 0 1626 1 0 1 1 0 8 0 zombiepl 144 3584 0 3583 1 0 1 1 0 8 0 processpl 1096 2820 0 2754 6 0 6 6 0 8 0 procpl 648 5035 0 4959 9 1 8 8 0 8 0 sosppl 168 11 0 11 1 0 1 1 0 8 1 sockpl 504 4106 0 4068 38 24 14 34 0 8 8 mcl64k 65536 22 0 22 2 1 1 1 0 8 1 mcl16k 16384 7 0 7 1 0 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 3 0 3 1 0 1 1 0 8 1 mcl8k 8192 35 0 35 2 1 1 1 0 8 1 mcl4k 4096 12 0 12 2 1 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 10308 0 10207 28 12 16 25 0 8 2 mtagpl 96 37 0 35 2 1 1 1 0 8 0 mbufpl 256 29910 0 29690 76 53 23 63 0 8 6 bufpl 280 10676 0 3226 540 0 540 540 0 8 0 anonpl 24 415738 0 410207 108 28 80 80 0 187 43 amapchunkpl 152 70466 0 69979 56 15 41 41 0 158 17 amappl16 200 6671 0 6527 41 25 16 18 0 8 8 amappl15 192 10 0 10 1 1 0 1 0 8 0 amappl14 184 302 0 292 1 0 1 1 0 8 0 amappl13 176 44 0 44 1 1 0 1 0 8 0 amappl12 168 4892 0 4863 3 1 2 3 0 8 0 amappl11 160 122 0 112 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 135 0 133 1 0 1 1 0 8 0 amappl8 136 21 0 20 1 0 1 1 0 8 0 amappl7 128 286 0 275 1 0 1 1 0 8 0 amappl6 120 1087 0 1084 1 0 1 1 0 8 0 amappl5 112 495 0 486 1 0 1 1 0 8 0 amappl4 104 575 0 559 1 0 1 1 0 8 0 amappl3 96 13244 0 13139 4 0 4 4 0 8 0 amappl2 88 1958 0 1895 2 0 2 2 0 8 0 amappl1 80 20718 0 20185 15 2 13 14 0 8 0 amappl 88 20594 0 20426 6 1 5 5 0 92 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 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 77 0 4 2 0 2 2 0 8 0 uaddrrnd 24 2782 0 2753 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2782 0 2753 1 0 1 1 0 8 0 vmmpekpl 168 22825 0 22759 4 0 4 4 0 8 0 vmmpepl 168 174473 0 172638 99 5 94 94 0 357 5 vmsppl 344 2781 0 2753 4 1 3 4 0 8 0 rwobjpl 24 56040 0 48985 43 0 43 43 0 8 0 pdppl 4096 5570 0 5506 245 173 72 82 0 8 8 pvpl 32 1336004 0 1322726 495 142 353 353 0 265 237 pmappl 216 2781 0 2753 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 683 0 284 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c22a0,ffff80002a53d3f0,ffff80002a53d340) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a53d3f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbd845fb71e0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4c22a0,ffffffffffffffff,0,a0c7df9b,fffffd805c04fc08,fffffd807f7d7750) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd805c04fc08,4,20c7df9b,0,ffff80002a4c22a0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4c22a0,ffff80002a53d3f0,ffff80002a53d340) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80002a53d3f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbd845fb71e0, count: -5