uvm_fault(0xfffffd807783f818, 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 *369282 20845 0 0 0x4000000 0 syz-executor ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80003761d1d8,ffff80003745fab0,ffff80003745fa00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003745fab0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaeff240d140, 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(0xfffffd807783f818, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80003761d1d8,ffff80003745fab0,ffff80003745fa00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003745fab0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaeff240d140, count: -5 ddb> show registers rdi 0xffff80003761d1d8 rsi 0xffffffffffffffff rbp 0xffff80003745f7d0 rbx 0xfffffd807f7d74e0 rdx 0 rcx 0xa0001430 rax 0xffff80003761d1d8 r8 0xfffffd807772d6f8 r9 0xfffffd807f7d74e0 r10 0x440fa1917a50a50e r11 0xb821acc8f65822e5 r12 0xffff80003761d1d8 r13 0x1 r14 0xffffffffffffffff r15 0xa0001430 rip 0xffffffff81e1c278 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003745f750 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=369282 pid=20845 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=83, usrpri=83, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4d1980,0xffff80003761ccd8 process=0xffff80002a464ce0 user=0xffff80003745a000, vmspace=0xfffffd807783f818 estcpu=33, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 10893 187698 79235 0 2 0 syz-executor 20845 213664 43724 0 2 0 syz-executor 20845 313319 43724 0 2 0x4000000 syz-executor *20845 369282 43724 0 7 0x4000000 syz-executor 48886 68123 14815 0 2 0x10 syz-executor 48886 474759 14815 0 2 0x4000010 syz-executor 6538 287723 4754 0 2 0 syz-executor 6538 349033 4754 0 3 0x4000080 fsleep syz-executor 61955 106709 11425 0 2 0 syz-executor 61955 110935 11425 0 3 0x4000080 fsleep syz-executor 79547 481507 0 0 3 0x14200 bored sosplice 75101 403654 59946 0 2 0x2 syz-executor 43724 117275 59946 0 2 0x482 syz-executor 11425 307982 59946 0 2 0x482 syz-executor 79235 28227 59946 0 3 0x82 nanoslp syz-executor 14815 86363 59946 0 2 0x482 syz-executor 3923 465134 59946 0 2 0x2 syz-executor 4754 523530 59946 0 2 0x482 syz-executor 50502 4314 59946 0 2 0x482 syz-executor 59946 128987 45686 0 3 0x82 kqread syz-executor 45686 412295 30775 0 3 0x10008a sigsusp ksh 30775 76368 42203 0 3 0x98 kqread sshd-session 42203 17615 3703 0 3 0x92 kqread sshd-session 27656 519642 1 0 3 0x100083 ttyin getty 3703 47821 1 0 3 0x88 kqread sshd 29672 149535 90138 73 3 0x1100090 kqread syslogd 90138 50490 1 0 3 0x100082 sbwait syslogd 89262 235399 1 0 3 0x100080 kqread resolvd 92247 214442 37401 77 3 0x100092 kqread dhcpleased 27535 348812 37401 77 3 0x100092 kqread dhcpleased 37401 499588 1 0 3 0x80 kqread dhcpleased 14211 464249 0 0 3 0x14200 bored smr 73593 157139 0 0 2 0x14200 zerothread 46261 425664 0 0 3 0x14200 aiodoned aiodoned 82705 424732 0 0 3 0x14200 syncer update 63192 323182 0 0 3 0x14200 cleaner cleaner 85511 273853 0 0 3 0x14200 reaper reaper 12413 232717 0 0 3 0x14200 pgdaemon pagedaemon 10164 323006 0 0 3 0x14200 bored viomb 15237 113315 0 0 3 0x40014200 acpi0 acpi0 11910 402508 0 0 3 0x14200 bored softnet3 85884 490241 0 0 3 0x14200 bored softnet2 57453 378521 0 0 3 0x14200 bored softnet1 55067 191018 0 0 3 0x14200 bored softnet0 67662 374842 0 0 3 0x14200 bored systqmp 86162 475732 0 0 3 0x14200 bored systq 58429 482866 0 0 2 0x40014200 softclock 79572 248276 0 0 3 0x40014200 idle0 1 31995 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 10171 10016K 10344K 166960K 11532 0 pcb 17 12K 12K 166960K 63 0 rtable 213 6K 7K 166960K 900 0 pf 29 12K 17K 166960K 74 0 ifaddr 38 6K 7K 166960K 114 0 ifgroup 46 2K 2K 166960K 121 0 counters 29 17K 17K 166960K 48 0 ioctlops 0 0K 4K 166960K 65 0 iov 0 0K 32K 166960K 58 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1372 86K 87K 166960K 1804 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 11 1K 1K 166960K 12 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 97K 166960K 611 0 sigio 0 0K 0K 166960K 8 0 proc 58 59K 124K 166960K 941 0 subproc 104 6K 6K 166960K 312 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 31 0 in_multi 88 6K 7K 166960K 281 0 ether_multi 1 0K 0K 166960K 1 0 mrt 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 575 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 210 72K 90K 166960K 6040 0 UVM aobj 13 2K 4K 166960K 14 0 pinsyscall 37 74K 102K 166960K 2040 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 19 0 NDP 10 0K 2K 166960K 77 0 temp 50 6805K 6869K 166960K 18725 0 kqueue 13 20K 29K 166960K 79 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 97 0 94 1 0 1 1 0 8 0 rtentry 112 310 0 212 4 0 4 4 0 8 0 unpcb 144 475 0 460 8 2 6 6 0 8 5 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 72 0 67 1 0 1 1 0 8 0 arp 88 58 0 42 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 336 462 0 387 9 2 7 7 0 8 0 nd6 104 74 0 52 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 24 0 16 1 0 1 1 0 8 0 ppxss 1072 1 0 1 1 1 0 1 0 8 0 pfrule 1344 3 0 3 2 2 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 1198 0 782 30 1 29 30 0 8 0 art_table 32 1200 0 782 4 0 4 4 0 8 0 art_node 16 309 0 223 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 10 0 1 1 0 1 1 0 8 0 shmpl 112 11 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2056 0 527 96 0 96 96 0 8 0 ffsino 240 2056 0 527 91 0 91 91 0 8 0 nchpl 144 2607 0 908 63 0 63 63 0 8 0 uvmvnodes 80 2472 0 0 51 0 51 51 0 8 0 vnodes 216 2472 0 0 138 0 138 138 0 8 0 namei 1024 10194 0 10194 4 3 1 2 0 8 1 kstatmem 264 58 0 38 2 0 2 2 0 8 0 scxspl 216 15090 0 15090 10 9 1 8 1 8 1 plimitpl 152 86 0 70 1 0 1 1 0 8 0 sigapl 424 857 0 812 7 1 6 7 0 8 0 futexpl 64 4174 0 4172 1 0 1 1 0 8 0 knotepl 120 11489 0 11442 15 11 4 10 0 8 2 kqueuepl 184 152 0 143 1 0 1 1 0 8 0 pipepl 288 176 0 149 3 0 3 3 0 8 0 fdescpl 432 840 0 812 5 1 4 5 0 8 0 filepl 120 4440 0 4130 17 3 14 14 0 8 2 lockfpl 104 88 0 85 1 0 1 1 0 8 0 lockfspl 48 43 0 40 1 0 1 1 0 8 0 sessionpl 144 37 0 29 1 0 1 1 0 8 0 pgrppl 48 67 0 51 1 0 1 1 0 8 0 ucredpl 104 558 0 546 1 0 1 1 0 8 0 zombiepl 144 813 0 812 3 2 1 1 0 8 0 processpl 1096 857 0 812 4 0 4 4 0 8 0 procpl 648 1225 0 1175 7 1 6 6 0 8 0 sockpl 504 1075 0 982 34 5 29 29 0 8 15 mcl64k 65536 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 10 0 10 1 1 0 1 0 8 0 mcl4k 4096 6 0 6 2 2 0 1 0 8 0 mcl2k 2048 5854 0 5760 28 15 13 26 0 8 0 mtagpl 96 7 0 6 3 2 1 1 0 8 0 mbufpl 256 10360 0 10164 18 2 16 17 0 8 0 bufpl 280 5711 0 91 402 0 402 402 0 8 0 anonpl 24 194945 0 191814 50 25 25 50 0 187 0 amapchunkpl 152 32201 0 31761 48 28 20 35 0 158 1 amappl16 200 4649 0 4628 7 4 3 5 0 8 1 amappl15 192 37 0 37 1 1 0 1 0 8 0 amappl14 184 141 0 131 1 0 1 1 0 8 0 amappl13 176 40 0 40 2 2 0 1 0 8 0 amappl12 168 1705 0 1678 3 1 2 3 0 8 0 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 165 0 164 1 0 1 1 0 8 0 amappl8 136 18 0 17 1 0 1 1 0 8 0 amappl7 128 195 0 185 1 0 1 1 0 8 0 amappl6 120 340 0 339 1 0 1 1 0 8 0 amappl5 112 194 0 186 1 0 1 1 0 8 0 amappl4 104 332 0 315 1 0 1 1 0 8 0 amappl3 96 3845 0 3744 5 2 3 4 0 8 0 amappl2 88 812 0 756 2 0 2 2 0 8 0 amappl1 80 9852 0 9325 14 2 12 14 0 8 0 amappl 88 5578 0 5422 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 13 0 1 1 0 1 1 0 8 0 uaddrrnd 24 840 0 812 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 840 0 812 1 0 1 1 0 8 0 vmmpekpl 168 8459 0 8408 3 0 3 3 0 8 0 vmmpepl 168 59876 0 58193 83 3 80 80 0 357 2 vmsppl 344 839 0 812 4 1 3 4 0 8 0 rwobjpl 24 23299 0 19971 21 0 21 21 0 8 0 pdppl 4096 1686 0 1624 120 54 66 82 0 8 4 pvpl 32 453406 0 444597 225 138 87 220 0 265 0 pmappl 216 839 0 812 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 447 0 88 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80003761d1d8,ffff80003745fab0,ffff80003745fa00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003745fab0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaeff240d140, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80003761d1d8,ffffffffffffffff,0,a0001430,fffffd807772d6f8,fffffd807f7d74e0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807772d6f8,4,20001430,ffffffff,ffff80003761d1d8) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80003761d1d8,ffff80003745fab0,ffff80003745fa00) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff80003745fab0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaeff240d140, count: -5