uvm_fault(0xfffffd807307e578, 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 *436332 19532 0 0 0x4000000 0 syz-executor ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4d1980,ffff800037629d90,ffff800037629ce0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037629d90) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6eb81c660c0, 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(0xfffffd807307e578, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4d1980,ffff800037629d90,ffff800037629ce0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037629d90) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6eb81c660c0, count: -5 ddb> show registers rdi 0xffff80002bdc2000 rsi 0xa41 rbp 0xffff800037629ab0 rbx 0xfffffd807f7d7548 rdx 0xffff80002bdc2000 rcx 0xa40 rax 0xffffffff821faf53 ktrops+0x43 r8 0xfffffd80596a47d8 r9 0xfffffd807f7d7548 r10 0x49d3c2b820e247ad r11 0x78e8e32a04d95739 r12 0xffff80002a4d1980 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000d16 rip 0xffffffff821faf68 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037629a30 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=436332 pid=19532 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4d0f60,0xffff80002a48c2b0 process=0xffff8000327f59c8 user=0xffff800037624000, vmspace=0xfffffd807307e578 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 28374 251099 25830 0 2 0 syz-executor 28374 130431 25830 0 3 0x4000080 fsleep syz-executor 28374 455512 25830 0 3 0x4000080 fsleep syz-executor 20546 127882 7309 0 2 0 syz-executor 20546 387797 7309 0 2 0x4000000 syz-executor 20546 257771 7309 0 2 0x4000000 syz-executor 19532 110208 79209 0 2 0 syz-executor *19532 436332 79209 0 7 0x4000000 syz-executor 42995 90502 27539 0 2 0 syz-executor 42995 199019 27539 0 3 0x4000080 fsleep syz-executor 42995 393263 27539 0 3 0x4000080 fsleep syz-executor 53108 32019 94547 0 2 0 syz-executor 53108 317013 94547 0 3 0x4000080 fsleep syz-executor 85176 293848 44165 0 2 0 syz-executor 85176 339683 44165 0 3 0x4000080 fsleep syz-executor 85176 239150 44165 0 2 0x4000000 syz-executor 85176 505720 44165 0 3 0x4000000 inode syz-executor 12350 432377 0 0 3 0x14200 acct acct 67250 452987 0 0 3 0x14280 nfsidl nfsio 35173 172576 0 0 3 0x14280 nfsidl nfsio 40130 112925 0 0 3 0x14280 nfsidl nfsio 89759 342736 0 0 3 0x14280 nfsidl nfsio 77441 408538 0 0 3 0x14280 nfsidl nfsio 77989 250332 0 0 3 0x14280 nfsidl nfsio 93906 45877 0 0 3 0x14280 nfsidl nfsio 1844 144820 0 0 3 0x14280 nfsidl nfsio 173 6683 0 0 3 0x14280 nfsidl nfsio 89731 14603 0 0 3 0x14280 nfsidl nfsio 47322 240896 0 0 3 0x14280 nfsidl nfsio 67830 200871 0 0 3 0x14280 nfsidl nfsio 97812 426125 0 0 3 0x14280 nfsidl nfsio 15901 118886 0 0 3 0x14280 nfsidl nfsio 26803 90106 0 0 3 0x14280 nfsidl nfsio 61229 430429 0 0 3 0x14280 nfsidl nfsio 67054 375224 0 0 3 0x14280 nfsidl nfsio 95777 311880 0 0 3 0x14280 nfsidl nfsio 99560 331045 0 0 3 0x14280 nfsidl nfsio 49765 110604 0 0 3 0x14280 nfsidl nfsio 7309 389734 16488 0 3 0x82 nanoslp syz-executor 90647 87491 16488 0 2 0x2 syz-executor 94547 28928 16488 0 3 0x82 nanoslp syz-executor 63343 297895 16488 0 2 0x2 syz-executor 27539 56669 16488 0 3 0x82 nanoslp syz-executor 44165 383742 16488 0 3 0x82 nanoslp syz-executor 79209 389548 16488 0 3 0x82 nanoslp syz-executor 25830 270420 16488 0 3 0x82 nanoslp syz-executor 20936 68710 0 0 3 0x14200 bored sosplice 16488 21312 9901 0 3 0x82 kqread syz-executor 9901 299760 75894 0 3 0x10008a sigsusp ksh 75894 292694 97989 0 3 0x98 kqread sshd-session 97989 3361 7236 0 3 0x92 kqread sshd-session 39631 479510 1 0 3 0x100083 ttyin getty 7236 514185 1 0 3 0x88 kqread sshd 27086 436346 38640 73 3 0x1100090 kqread syslogd 38640 280044 1 0 3 0x100082 sbwait syslogd 69452 520061 1 0 3 0x100080 kqread resolvd 42610 446705 21440 77 3 0x100092 kqread dhcpleased 91508 51588 21440 77 3 0x100092 kqread dhcpleased 21440 288710 1 0 3 0x80 kqread dhcpleased 92270 170019 0 0 3 0x14200 bored smr 23795 201023 0 0 2 0x14200 zerothread 32934 237453 0 0 3 0x14200 aiodoned aiodoned 81632 396592 0 0 3 0x14200 syncer update 98979 221315 0 0 3 0x14200 cleaner cleaner 45523 498586 0 0 3 0x14200 reaper reaper 72149 212999 0 0 3 0x14200 pgdaemon pagedaemon 88140 523886 0 0 3 0x14200 bored viomb 95143 478500 0 0 3 0x40014200 acpi0 acpi0 94132 62362 0 0 3 0x14200 bored softnet3 15824 22957 0 0 3 0x14200 bored softnet2 67458 357935 0 0 3 0x14200 bored softnet1 54917 302819 0 0 3 0x14200 bored softnet0 97901 428954 0 0 3 0x14200 bored systqmp 12533 267696 0 0 3 0x14200 bored systq 11802 218297 0 0 2 0x40014200 softclock 48343 37953 0 0 3 0x40014200 idle0 1 209058 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 10187 10088K 10471K 166960K 12489 0 pcb 17 16K 18K 166960K 247 0 rtable 191 7K 8K 166960K 2324 0 pf 30 13K 21K 166960K 187 0 ifaddr 36 7K 8K 166960K 317 0 ifgroup 46 2K 2K 166960K 328 0 sysctl 4 1K 1K 166960K 5 0 counters 29 17K 18K 166960K 102 0 ioctlops 0 0K 4K 166960K 146 0 iov 0 0K 16K 166960K 119 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1518 95K 96K 166960K 2978 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 13K 166960K 21 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 24 0 dirhash 15 2K 3K 166960K 24 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 16 57K 93K 166960K 1871 0 sigio 0 0K 0K 166960K 17 0 proc 60 59K 100K 166960K 2288 0 subproc 104 6K 6K 166960K 910 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 119 0 in_multi 67 5K 7K 166960K 821 0 ether_multi 1 0K 0K 166960K 8 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 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 1255 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 215 72K 92K 166960K 15273 0 UVM aobj 100 3K 5K 166960K 103 0 pinsyscall 37 74K 94K 166960K 4523 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 31 0 NDP 10 0K 2K 166960K 225 0 temp 76 6816K 6944K 166960K 58395 0 kqueue 14 22K 28K 166960K 158 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 120 227 0 224 1 0 1 1 0 8 0 rtentry 112 823 0 738 4 0 4 4 0 8 0 unpcb 144 1152 0 1133 13 7 6 6 0 8 5 syncache 336 13 0 13 3 2 1 1 0 8 1 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 808 351 0 347 9 1 8 8 0 8 7 arp 88 150 0 137 1 0 1 1 0 8 0 ipq 40 10 0 8 1 0 1 1 0 8 0 ipqe 40 187 0 185 1 0 1 1 0 8 0 inpcb 336 1577 0 1568 23 16 7 12 0 8 5 nd6 104 216 0 200 1 0 1 1 0 8 0 pkpcb 40 10 0 10 2 1 1 1 0 8 1 kcovpl 48 70 0 62 1 0 1 1 0 8 0 ppxss 1072 7 0 7 2 1 1 1 0 8 1 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pftag 88 2 0 1 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 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 3237 0 2903 31 3 28 29 0 8 1 art_table 32 3239 0 2903 4 0 4 4 0 8 0 art_node 16 822 0 747 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 1 1 0 1 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 100 0 3 3 0 3 3 0 8 0 dirhash 1024 25 0 6 3 0 3 3 0 8 0 dino2pl 256 3228 0 1611 102 0 102 102 0 8 0 ffsino 240 3228 0 1611 96 0 96 96 0 8 0 nchpl 144 4613 0 2853 66 0 66 66 0 8 0 uvmvnodes 80 4618 0 0 95 0 95 95 0 8 0 vnodes 216 4618 0 0 257 0 257 257 0 8 0 namei 1024 21585 0 21579 4 3 1 2 0 8 0 kstatmem 264 166 0 146 3 0 3 3 0 8 1 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 43364 0 43364 11 9 2 8 1 8 2 plimitpl 152 427 0 411 1 0 1 1 0 8 0 sigapl 424 2052 0 1986 8 0 8 8 0 8 0 futexpl 64 13166 0 13160 1 0 1 1 0 8 0 knotepl 120 30465 0 30416 16 7 9 10 0 8 6 kqueuepl 184 343 0 333 7 4 3 4 0 8 2 pipepl 288 391 0 363 6 3 3 5 0 8 0 fdescpl 432 2014 0 1986 5 1 4 5 0 8 0 filepl 120 10520 0 10269 21 9 12 15 0 8 4 lockfpl 104 372 0 370 1 0 1 1 0 8 0 lockfspl 48 155 0 153 1 0 1 1 0 8 0 sessionpl 144 88 0 80 1 0 1 1 0 8 0 pgrppl 48 173 0 157 1 0 1 1 0 8 0 ucredpl 104 1352 0 1341 1 0 1 1 0 8 0 zombiepl 144 2304 0 2304 2 1 1 1 0 8 1 processpl 1096 2052 0 1986 5 0 5 5 0 8 0 procpl 648 3396 0 3319 7 0 7 7 0 8 0 sosppl 168 5 0 5 2 1 1 1 0 8 1 sockpl 504 2983 0 2952 71 59 12 33 0 8 7 mcl64k 65536 23 0 23 2 1 1 1 0 8 1 mcl16k 16384 3 0 3 1 1 0 1 0 8 0 mcl12k 12288 2 0 2 1 1 0 1 0 8 0 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 21 0 21 3 2 1 1 0 8 1 mcl4k 4096 7 0 7 3 2 1 1 0 8 1 mcl2k 2048 8260 0 8161 26 11 15 24 0 8 1 mtagpl 96 22 0 20 1 0 1 1 0 8 0 mbufpl 256 21465 0 21270 38 13 25 28 0 8 8 bufpl 280 9210 0 2171 503 0 503 503 0 8 0 anonpl 24 352096 0 348891 89 37 52 75 0 187 15 amapchunkpl 152 49542 0 49082 47 14 33 41 0 158 14 amappl16 200 6733 0 6705 38 27 11 18 0 8 8 amappl15 192 17 0 16 1 0 1 1 0 8 0 amappl14 184 241 0 231 1 0 1 1 0 8 0 amappl13 176 11 0 11 2 2 0 1 0 8 0 amappl12 168 3619 0 3591 3 1 2 3 0 8 0 amappl11 160 74 0 64 1 0 1 1 0 8 0 amappl10 152 26 0 26 1 1 0 1 0 8 0 amappl9 144 139 0 139 1 1 0 1 0 8 0 amappl8 136 55 0 54 1 0 1 1 0 8 0 amappl7 128 231 0 221 1 0 1 1 0 8 0 amappl6 120 804 0 803 1 0 1 1 0 8 0 amappl5 112 383 0 374 1 0 1 1 0 8 0 amappl4 104 483 0 468 1 0 1 1 0 8 0 amappl3 96 9291 0 9188 4 0 4 4 0 8 1 amappl2 88 1572 0 1507 2 0 2 2 0 8 0 amappl1 80 17422 0 16911 16 3 13 15 0 8 0 amappl 88 14391 0 14229 6 1 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 7 0 7 2 2 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 72 102 0 3 2 0 2 2 0 8 0 uaddrrnd 24 2014 0 1986 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2014 0 1986 1 0 1 1 0 8 0 vmmpekpl 168 17103 0 17055 3 0 3 3 0 8 0 vmmpepl 168 131310 0 129625 103 12 91 91 0 357 12 vmsppl 344 2013 0 1986 5 2 3 4 0 8 0 rwobjpl 24 44427 0 38868 35 0 35 35 0 8 0 pdppl 4096 4035 0 3972 189 120 69 81 0 8 6 pvpl 32 1022831 0 1013290 285 66 219 260 0 265 124 pmappl 216 2013 0 1986 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 617 0 241 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4d1980,ffff800037629d90,ffff800037629ce0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037629d90) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6eb81c660c0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a4d1980,ffffffffffffffff,0,c0000d16,fffffd80596a47d8,fffffd807f7d7548) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd80596a47d8,4,40000d16,0,ffff80002a4d1980) at doktrace+0x6dd sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a4d1980,ffff800037629d90,ffff800037629ce0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037629d90) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6eb81c660c0, count: -5