uvm_fault(0xfffffd806ba6b460, 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 *144128 29790 0 0 0x4000000 0 syz-executor ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813498,ffff80003a963c70,ffff80003a963bc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003a963c70) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a963c70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x756f0160af0, 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(0xfffffd806ba6b460, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813498,ffff80003a963c70,ffff80003a963bc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003a963c70) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a963c70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x756f0160af0, count: -5 ddb> show registers rdi 0xffff80002a813498 rsi 0xffffffffffffffff rbp 0xffff80003a963990 rbx 0xfffffd8007bfb5b0 rdx 0 rcx 0xc0000530 rax 0xffff80002a813498 r8 0xfffffd806f544ea8 r9 0xfffffd8007bfb5b0 r10 0x71bb764808875a50 r11 0x604431aaaa4c3385 r12 0xffff80002a813498 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000530 rip 0xffffffff82875898 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003a963910 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=144128 pid=29790 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=82, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a813208,0xffff80003c9734c8 process=0xffff80003ca236c0 user=0xffff80003a95e000, vmspace=0xfffffd806ba6b460 estcpu=32, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 9298 76025 76079 0 2 0 syz-executor 9298 475102 76079 0 3 0x4000080 fsleep syz-executor 74506 322112 6637 0 2 0 syz-executor 74506 368532 6637 0 3 0x4000080 fsleep syz-executor 74506 1598 6637 0 3 0x4000080 fsleep syz-executor 29790 60932 57367 0 2 0 syz-executor *29790 144128 57367 0 7 0x4000000 syz-executor 29790 102085 57367 0 3 0x4000080 fsleep syz-executor 70833 248994 91359 0 2 0 syz-executor 70833 237563 91359 0 3 0x4000080 fsleep syz-executor 30223 52959 8788 0 2 0x10 syz-executor 30223 235196 8788 0 3 0x4000090 fsleep syz-executor 30223 435744 8788 0 3 0x4000090 fsleep syz-executor 80334 365776 0 0 3 0x14280 nfsidl nfsio 42643 172202 0 0 3 0x14280 nfsidl nfsio 21632 393920 0 0 3 0x14280 nfsidl nfsio 33989 106781 0 0 3 0x14280 nfsidl nfsio 36178 201651 0 0 3 0x14280 nfsidl nfsio 45081 34503 0 0 3 0x14280 nfsidl nfsio 99327 302550 0 0 3 0x14280 nfsidl nfsio 53852 45802 0 0 3 0x14280 nfsidl nfsio 24419 233592 0 0 3 0x14280 nfsidl nfsio 13530 48564 0 0 3 0x14280 nfsidl nfsio 64875 315464 0 0 3 0x14280 nfsidl nfsio 44951 472368 0 0 3 0x14280 nfsidl nfsio 77666 388974 0 0 3 0x14280 nfsidl nfsio 39153 304561 0 0 3 0x14280 nfsidl nfsio 12853 428977 0 0 3 0x14280 nfsidl nfsio 43376 168812 0 0 3 0x14280 nfsidl nfsio 47269 63828 0 0 3 0x14280 nfsidl nfsio 61153 216270 0 0 3 0x14280 nfsidl nfsio 26500 444793 0 0 3 0x14280 nfsidl nfsio 57638 396103 0 0 3 0x14280 nfsidl nfsio 5002 374104 0 0 3 0x14200 bored sosplice 8788 230186 80344 0 3 0x82 nanoslp syz-executor 57367 157592 80344 0 3 0x82 nanoslp syz-executor 50830 436436 80344 0 2 0x2 syz-executor 69463 85427 80344 0 2 0x2 syz-executor 91359 403857 80344 0 3 0x82 nanoslp syz-executor 88942 96641 80344 0 2 0x2 syz-executor 6637 420094 80344 0 3 0x82 nanoslp syz-executor 76079 15766 80344 0 2 0xc82 syz-executor 80344 55619 2293 0 2 0x2 syz-executor 2293 79086 70087 0 3 0x10008a sigsusp ksh 70087 433519 17068 0 3 0x98 kqread sshd-session 17068 290730 67491 0 3 0x92 kqread sshd-session 64984 337248 1 0 3 0x100083 ttyopn getty 67491 284374 1 0 3 0x88 kqread sshd 64169 503462 84897 73 3 0x1100090 kqread syslogd 84897 8968 1 0 3 0x100082 sbwait syslogd 14603 519813 1 0 3 0x100080 kqread resolvd 73156 232554 55076 77 3 0x100092 kqread dhcpleased 29270 230058 55076 77 3 0x100092 kqread dhcpleased 55076 418689 1 0 3 0x80 kqread dhcpleased 90721 81514 0 0 3 0x14200 bored smr 75041 354160 0 0 2 0x14200 zerothread 49534 513548 0 0 3 0x14200 aiodoned aiodoned 8732 234720 0 0 3 0x14200 syncer update 81825 204758 0 0 3 0x14200 cleaner cleaner 23818 173 0 0 3 0x14200 reaper reaper 18965 415135 0 0 3 0x14200 pgdaemon pagedaemon 16902 513846 0 0 3 0x14200 bored viomb 12175 493533 0 0 3 0x40014200 acpi0 acpi0 37940 296690 0 0 3 0x14200 bored softnet7 50810 176391 0 0 3 0x14200 bored softnet6 17907 223013 0 0 3 0x14200 bored softnet5 90815 386702 0 0 3 0x14200 bored softnet4 17694 141639 0 0 3 0x14200 bored softnet3 9981 89368 0 0 3 0x14200 bored softnet2 19516 515504 0 0 3 0x14200 bored softnet1 46814 195782 0 0 3 0x14200 bored softnet0 68838 54368 0 0 3 0x14200 bored systqmp 28276 310778 0 0 3 0x14200 bored systq 71353 385288 0 0 3 0x40014200 tmoslp softclock 81960 158299 0 0 3 0x40014200 idle0 1 174718 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 10217 11072K 11489K 166960K 11862 0 pcb 17 12K 12K 166960K 78 0 rtable 189 7K 7K 166960K 312 0 pf 31 13K 15K 166960K 61 0 ifaddr 36 6K 7K 166960K 57 0 ifgroup 50 2K 2K 166960K 78 0 sysctl 4 1K 9K 166960K 9 0 counters 32 17K 18K 166960K 43 0 ioctlops 0 0K 4K 166960K 137 0 iov 0 0K 16K 166960K 25 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1341 84K 85K 166960K 1689 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 13 10K 10K 166960K 17 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 97K 166960K 501 0 sigio 0 0K 0K 166960K 5 0 proc 61 67K 124K 166960K 513 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 41 0 in_multi 77 5K 7K 166960K 115 0 ether_multi 1 0K 0K 166960K 6 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 2K 166960K 364 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 207 142K 152K 166960K 6052 0 UVM aobj 19 2K 2K 166960K 19 0 pinsyscall 36 72K 96K 166960K 1523 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 12 0 NDP 11 0K 2K 166960K 36 0 temp 48 8668K 8795K 166960K 10998 0 kqueue 13 20K 28K 166960K 78 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 120 126 0 122 3 2 1 3 0 8 0 rtentry 136 101 0 25 4 0 4 4 0 8 0 unpcb 144 242 0 227 2 1 1 2 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 177 0 171 7 6 1 7 0 8 0 arp 88 11 0 3 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 328 365 0 352 8 6 2 7 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 104 16 0 4 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 7 0 7 1 1 0 1 0 8 0 pppxif 1384 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1344 3 0 3 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 445 0 93 28 1 27 28 0 8 2 art_table 40 446 0 93 5 0 5 5 0 8 0 art_node 32 100 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 5 1 0 1 1 0 8 0 semapl 112 12 0 1 1 0 1 1 0 8 0 shmpl 112 16 0 0 1 0 1 1 0 8 0 dirhash 1024 28 0 11 3 0 3 3 0 8 0 dino2pl 256 2235 0 739 95 0 95 95 0 8 0 ffsino 256 2236 0 739 95 0 95 95 0 8 0 nchpl 144 2925 0 1242 63 0 63 63 0 8 0 uvmvnodes 80 2524 0 0 52 0 52 52 0 8 0 vnodes 216 2524 0 0 141 0 141 141 0 8 0 namei 1024 9730 0 9728 3 2 1 2 0 8 0 kstatmem 264 40 0 18 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 9803 0 9803 15 7 8 8 1 8 8 plimitpl 152 186 0 168 1 0 1 1 0 8 0 sigapl 424 803 0 735 8 0 8 8 0 8 0 knotepl 120 19486 0 19439 18 8 10 10 0 8 8 kqueuepl 184 153 0 144 1 0 1 1 0 8 0 pipepl 304 226 0 199 8 5 3 8 0 8 0 fdescpl 448 762 0 735 5 1 4 5 0 8 0 filepl 120 4207 0 3987 12 3 9 11 0 8 1 lockfpl 104 330 0 328 1 0 1 1 0 8 0 lockfspl 48 125 0 123 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 104 640 0 628 1 0 1 1 0 8 0 zombiepl 144 834 0 834 2 1 1 1 0 8 1 processpl 1168 803 0 735 6 0 6 6 0 8 0 procpl 656 1396 0 1320 8 0 8 8 0 8 0 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 552 740 0 708 11 8 3 11 0 8 0 mcl64k 65536 11 0 10 1 0 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 2955 0 2905 14 7 7 14 0 8 0 mcl2k 2048 654 0 650 3 1 2 2 0 8 1 mtagpl 96 20 0 9 1 0 1 1 0 8 0 mbufpl 256 7292 0 7123 13 0 13 13 0 8 0 bufpl 280 3439 0 118 238 0 238 238 0 8 0 anonpl 24 139991 0 136977 55 22 33 45 0 187 9 amapchunkpl 152 19366 0 18951 36 10 26 26 0 158 6 amappl16 200 2499 0 2470 13 10 3 12 0 8 0 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 104 0 94 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1367 0 1340 3 1 2 3 0 8 0 amappl11 160 69 0 59 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 245 0 245 1 1 0 1 0 8 0 amappl8 136 95 0 93 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 190 0 187 1 0 1 1 0 8 0 amappl5 112 120 0 113 1 0 1 1 0 8 0 amappl4 104 274 0 256 1 0 1 1 0 8 0 amappl3 96 3580 0 3486 4 0 4 4 0 8 0 amappl2 88 612 0 555 2 0 2 2 0 8 0 amappl1 80 9347 0 8810 13 1 12 13 0 8 0 amappl 88 5350 0 5206 5 0 5 5 0 92 1 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 18 0 0 1 0 1 1 0 8 0 uaddrrnd 24 762 0 735 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 762 0 735 1 0 1 1 0 8 0 vmmpekpl 168 7730 0 7697 2 0 2 2 0 8 0 vmmpepl 168 53144 0 51410 95 10 85 91 0 357 1 vmsppl 368 761 0 735 4 1 3 4 0 8 0 rwobjpl 40 18722 0 15356 36 1 35 35 0 8 0 pdppl 4096 1530 0 1470 104 38 66 82 0 8 6 pvpl 32 347497 0 339609 133 34 99 115 0 265 19 pmappl 216 761 0 735 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 390 0 61 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813498,ffff80003a963c70,ffff80003a963bc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003a963c70) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a963c70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x756f0160af0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a813498,ffffffffffffffff,0,c0000530,fffffd806f544ea8,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806f544ea8,4,40000530,0,ffff80002a813498) at doktrace+0x6dd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a813498,ffff80003a963c70,ffff80003a963bc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003a963c70) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003a963c70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x756f0160af0, count: -5