uvm_fault(0xfffffd806c0cc010, 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 *423109 67343 0 0x10 0x4000000 0 syz-executor ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800036123738,ffff800036153ae0,ffff800036153a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036153ae0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb4f66e06b0, 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> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffffd806c0cc010, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800036123738,ffff800036153ae0,ffff800036153a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036153ae0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb4f66e06b0, count: -5 ddb> show registers rdi 0xffff800036123738 rsi 0xffffffffffffffff rbp 0xffff800036153800 rbx 0xfffffd807f7d73a8 rdx 0 rcx 0xe0001530 rax 0xffff800036123738 r8 0xfffffd8060075040 r9 0xfffffd807f7d73a8 r10 0x81352932e597e3aa r11 0x7f4f171933e94c0e r12 0xffff800036123738 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xe0001530 rip 0xffffffff83285e78 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800036153780 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=423109 pid=67343 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=55, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000361227d8,0xffff800036122f98 process=0xffff800036128018 user=0xffff80003614e000, vmspace=0xfffffd806c0cc010 estcpu=5, cpticks=20, pctcpu=0.0, user=0, sys=20, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 67343 315608 1352 0 2 0x10 syz-executor *67343 423109 1352 0 7 0x4000010 syz-executor 67343 343264 1352 0 2 0x4000010 syz-executor 93501 482795 53924 0 2 0 syz-executor 93501 137178 53924 0 3 0x4000080 kqsel syz-executor 93501 291184 53924 0 2 0x4000000 syz-executor 45500 201399 41179 0 2 0x81000 syz-executor 45500 321528 41179 0 3 0x4003000 suspend syz-executor 46603 453056 53964 0 2 0x81000 syz-executor 46603 199754 53964 0 3 0x4003000 suspend syz-executor 50888 48812 46822 0 2 0 syz-executor 50888 341 46822 0 3 0x4000080 piperd syz-executor 50888 140749 46822 0 2 0x4000000 syz-executor 58032 334089 1 0 2 0 syz-executor 58032 522419 1 0 3 0x4000080 dtread syz-executor 58032 3608 1 0 3 0x4000080 kqread syz-executor 58032 426610 1 0 3 0x4000080 fsleep syz-executor 53964 161167 88716 0 2 0x2 syz-executor 1352 76321 88716 0 3 0x82 wait syz-executor 98332 483101 0 0 3 0x14280 nfsidl nfsio 73995 397034 0 0 3 0x14280 nfsidl nfsio 71342 262500 0 0 3 0x14280 nfsidl nfsio 6415 49671 0 0 3 0x14280 nfsidl nfsio 78004 280773 0 0 3 0x14280 nfsidl nfsio 60848 123798 0 0 3 0x14280 nfsidl nfsio 33488 316099 0 0 3 0x14280 nfsidl nfsio 72961 15488 0 0 3 0x14280 nfsidl nfsio 51111 267731 0 0 3 0x14280 nfsidl nfsio 57415 415373 0 0 3 0x14280 nfsidl nfsio 31605 448230 0 0 3 0x14280 nfsidl nfsio 45337 476013 0 0 3 0x14280 nfsidl nfsio 20482 92633 0 0 3 0x14280 nfsidl nfsio 71485 242256 0 0 3 0x14280 nfsidl nfsio 78541 234439 0 0 3 0x14280 nfsidl nfsio 19865 68846 0 0 3 0x14280 nfsidl nfsio 48506 256421 0 0 3 0x14280 nfsidl nfsio 97521 125349 0 0 3 0x14280 nfsidl nfsio 72767 116096 0 0 3 0x14280 nfsidl nfsio 8673 184825 0 0 3 0x14280 nfsidl nfsio 83115 409383 88716 0 2 0x2 syz-executor 82259 47838 0 0 3 0x14200 bored sosplice 46822 111058 88716 0 3 0x82 wait syz-executor 53924 86794 88716 0 3 0x82 wait syz-executor 41179 476068 88716 0 2 0x2 syz-executor 8154 256233 88716 0 2 0x2 syz-executor 88716 419618 98054 0 2 0x10000002 syz-executor 98054 418234 19783 0 3 0x10008a sigsusp ksh 19783 261163 11827 0 3 0x98 kqread sshd-session 11827 377419 1 0 3 0x92 kqread sshd-session 45246 80851 1 0 2 0x100083 getty 75030 320652 2526 73 3 0x1100090 kqread syslogd 2526 27761 1 0 3 0x100082 sbwait syslogd 45215 504150 1 0 3 0x100080 kqread resolvd 36 55222 33844 77 3 0x100092 kqread dhcpleased 58793 412954 33844 77 3 0x100092 kqread dhcpleased 33844 325167 1 0 3 0x80 kqread dhcpleased 3456 450542 0 0 3 0x14200 bored smr 52560 78478 0 0 2 0x14200 zerothread 80136 104055 0 0 3 0x14200 aiodoned aiodoned 84055 503612 0 0 3 0x14200 syncer update 53817 83679 0 0 3 0x14200 cleaner cleaner 12536 412741 0 0 3 0x14200 reaper reaper 32353 72057 0 0 3 0x14200 pgdaemon pagedaemon 86098 21739 0 0 3 0x14200 bored viomb 16078 208205 0 0 3 0x40014200 acpi0 acpi0 37419 64398 0 0 3 0x14200 bored softnet3 21339 519519 0 0 3 0x14200 bored softnet2 19618 223886 0 0 3 0x14200 bored softnet1 79211 196939 0 0 2 0x14200 softnet0 7449 294552 0 0 3 0x14200 bored systqmp 89535 513054 0 0 3 0x14200 bored systq 91988 419693 0 0 2 0x40014200 softclock 94978 512716 0 0 3 0x40014200 idle0 1 106277 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10202 11183K 11586K 166960K 13625 0 pcb 18 18K 19K 166960K 269 0 rtable 230 8K 8K 166960K 608 0 pf 33 13K 21K 166960K 153 0 ifaddr 42 7K 8K 166960K 103 0 ifgroup 50 2K 2K 166960K 163 0 sysctl 3 1K 1K 166960K 9 0 counters 30 17K 17K 166960K 143 0 ioctlops 0 0K 4K 166960K 331 0 iov 0 0K 16K 166960K 98 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1431 90K 90K 166960K 2703 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 38 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 1422 0 sigio 0 0K 0K 166960K 23 0 proc 60 59K 100K 166960K 705 0 subproc 72 4K 4K 166960K 109 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 352 0 in_multi 97 7K 7K 166960K 205 0 ether_multi 1 0K 0K 166960K 16 0 mrt 2 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 737 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 196 71K 89K 166960K 13872 0 UVM aobj 118 6K 6K 166960K 123 0 pinsyscall 34 68K 93K 166960K 2550 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 58 0 NDP 11 0K 1K 166960K 68 0 temp 76 8684K 8752K 166960K 25450 0 kqueue 14 22K 30K 166960K 268 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 120 229 0 226 3 2 1 3 0 8 0 rtentry 112 194 0 91 4 0 4 4 0 8 0 unpcb 144 1229 0 1214 9 3 6 9 0 8 5 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 284 0 281 5 4 1 4 0 8 0 arp 88 33 0 13 1 0 1 1 0 8 0 ipq 40 7 0 5 1 0 1 1 0 8 0 ipqe 40 57 0 55 1 0 1 1 0 8 0 inpcb 344 1651 0 1641 24 17 7 13 0 8 5 nd6 104 46 0 18 1 0 1 1 0 8 0 pkpcb 40 13 0 13 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 1 1 1 0 8 1 ppxss 1072 96 0 96 3 2 1 1 0 8 1 pppxif 1384 70 0 70 2 1 1 1 0 8 1 pfstscr 40 2 0 1 1 0 1 1 0 8 0 pfanchor 1288 6 0 4 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 2 1 0 1 1 0 8 0 pfstate 344 3 0 1 1 0 1 1 0 8 0 pfrule 1344 14 0 13 2 1 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 763 0 339 30 3 27 29 0 8 0 art_table 32 765 0 339 4 0 4 4 0 8 0 art_node 16 191 0 100 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 1 0 1 0 8 0 semapl 112 33 0 23 1 0 1 1 0 8 0 shmpl 112 120 0 5 4 0 4 4 0 8 0 dirhash 1024 32 0 15 3 0 3 3 0 8 0 dino2pl 256 3910 0 2411 95 0 95 95 0 8 0 ffsino 248 3910 0 2411 95 0 95 95 0 8 0 nchpl 144 5841 0 5337 64 0 64 64 0 8 41 rtmask 32 3 0 3 2 1 1 1 0 8 1 uvmvnodes 80 4834 0 0 99 0 99 99 0 8 0 vnodes 216 4834 0 0 269 0 269 269 0 8 0 namei 1024 21010 0 21007 2 1 1 1 0 8 0 kstatmem 264 88 0 66 2 0 2 2 0 8 0 scsiplug 72 5 0 5 2 1 1 1 0 8 1 scxspl 216 17071 0 17071 9 8 1 8 1 8 1 plimitpl 152 342 0 325 1 0 1 1 0 8 0 sigapl 424 1707 0 1643 8 0 8 8 0 8 0 futexpl 64 19918 0 19917 1 0 1 1 0 8 0 knotepl 120 64795 0 64540 50 34 16 17 0 8 8 kqueuepl 184 687 0 676 7 6 1 4 0 8 0 pipepl 296 260 0 232 5 2 3 5 0 8 0 fdescpl 440 1666 0 1640 5 1 4 5 0 8 0 filepl 120 11952 0 11736 28 17 11 20 0 8 2 lockfpl 104 456 0 453 1 0 1 1 0 8 0 lockfspl 48 147 0 144 1 0 1 1 0 8 0 sessionpl 144 26 0 19 1 0 1 1 0 8 0 pgrppl 48 48 0 33 1 0 1 1 0 8 0 ucredpl 104 1832 0 1819 1 0 1 1 0 8 0 zombiepl 144 1645 0 1643 1 0 1 1 0 8 0 processpl 1112 1707 0 1643 5 0 5 5 0 8 0 procpl 656 3502 0 3427 8 0 8 8 0 8 0 sosppl 168 3 0 3 2 2 0 1 0 8 0 sockpl 528 3145 0 3117 25 14 11 20 0 8 8 mcl64k 65536 31 0 31 3 2 1 1 0 8 1 mcl16k 16384 3 0 3 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl9k 9216 2 0 2 2 2 0 1 0 8 0 mcl8k 8192 27 0 27 3 2 1 1 0 8 1 mcl4k 4096 4202 0 4145 26 8 18 18 0 8 9 mcl2k 2048 1547 0 1512 7 2 5 5 0 8 0 mtagpl 96 330 0 69 7 0 7 7 0 8 0 mbufpl 256 18752 0 18297 86 52 34 68 0 8 0 bufpl 280 5656 0 196 390 0 390 390 0 8 0 anonpl 24 246871 0 243650 82 25 57 57 0 187 28 amapchunkpl 152 54397 0 53954 49 22 27 35 0 158 2 amappl16 200 4665 0 4631 29 18 11 15 0 8 8 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 115 0 106 1 0 1 1 0 8 0 amappl13 176 7 0 7 2 2 0 1 0 8 0 amappl12 168 2341 0 2315 2 0 2 2 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 253 0 253 1 1 0 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 107 0 98 1 0 1 1 0 8 0 amappl6 120 211 0 208 1 0 1 1 0 8 0 amappl5 112 128 0 121 1 0 1 1 0 8 0 amappl4 104 299 0 284 1 0 1 1 0 8 0 amappl3 96 9295 0 9199 4 0 4 4 0 8 0 amappl2 88 681 0 630 2 0 2 2 0 8 0 amappl1 80 11689 0 11252 12 1 11 12 0 8 0 amappl 88 13393 0 13242 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 1 0 1 0 8 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 128 254 0 254 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 122 0 5 3 0 3 3 0 8 0 uaddrrnd 24 1666 0 1640 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1666 0 1640 1 0 1 1 0 8 0 vmmpekpl 168 13554 0 13516 3 0 3 3 0 8 1 vmmpepl 168 103671 0 102136 91 7 84 85 0 357 8 vmsppl 360 1665 0 1640 4 1 3 4 0 8 0 rwobjpl 32 32393 0 26687 47 0 47 47 0 8 0 pdppl 4096 3339 0 3280 111 46 65 79 0 8 6 pvpl 32 713270 0 705195 169 61 108 145 0 265 20 pmappl 216 1665 0 1640 2 0 2 2 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 382 0 126 9 0 9 9 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800036123738,ffff800036153ae0,ffff800036153a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036153ae0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb4f66e06b0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800036123738,ffffffffffffffff,0,e0001530,fffffd8060075040,fffffd807f7d73a8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060075040,4,60001530,0,ffff800036123738) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff800036123738,ffff800036153ae0,ffff800036153a30) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800036153ae0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xbb4f66e06b0, count: -5