kernel: page fault trap, code=10 Stopped at 0 TID PID UID PRFLAGS PFLAGS CPU COMMAND *375988 66352 0 0x8000000 0 0 syz-executor.0 end trace frame: 0x0, count: 14 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: attempt to execute user address 0x0 in supervisor mode ddb> trace end trace frame: 0x0, count: -1 ddb> show registers rdi 0x61c55000 rsi 0xffff80002a68af98 rbp 0 rbx 0 rdx 0x67daa002 rcx 0 rax 0x8000000066883001 r8 0x8 r9 0 r10 0xdefb50fce618c2a6 r11 0x299a4b349ece7764 r12 0 r13 0 r14 0 r15 0 rip 0 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000377f7100 ss 0 0 ddb> show proc PROC (syz-executor.0) tid=375988 pid=66352 tcnt=1 stat=onproc flags process=8000000 proc=0 runpri=84, usrpri=84, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a68bc68,0xffff80002a68b4c8 process=0xffff80003784a1a0 user=0xffff8000377f2000, vmspace=0xfffffd806955a418 estcpu=34, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 55455 31396 60652 0 2 0x8000000 syz-executor.7 55455 236640 60652 0 3 0xc000080 fsleep syz-executor.7 65846 71925 85888 0 2 0x8000000 syz-executor.6 65846 152129 85888 0 3 0xc000080 netio syz-executor.6 *66352 375988 87094 0 7 0x8000000 syz-executor.0 82531 486620 82559 0 2 0x8000000 syz-executor.4 31015 502037 0 0 3 0x14280 nfsidl nfsio 44275 318652 0 0 3 0x14280 nfsidl nfsio 90471 219252 0 0 3 0x14280 nfsidl nfsio 28898 414391 0 0 3 0x14280 nfsidl nfsio 63965 123886 0 0 3 0x14280 nfsidl nfsio 29967 75871 0 0 3 0x14280 nfsidl nfsio 73787 107444 0 0 3 0x14280 nfsidl nfsio 60260 477365 0 0 3 0x14280 nfsidl nfsio 26718 189861 0 0 3 0x14280 nfsidl nfsio 65533 399305 0 0 3 0x14280 nfsidl nfsio 35732 516667 0 0 3 0x14280 nfsidl nfsio 57009 21866 0 0 3 0x14280 nfsidl nfsio 54080 479509 0 0 3 0x14280 nfsidl nfsio 14195 71083 0 0 3 0x14280 nfsidl nfsio 36838 161682 0 0 3 0x14280 nfsidl nfsio 6335 48974 0 0 3 0x14280 nfsidl nfsio 39365 295104 0 0 3 0x14280 nfsidl nfsio 75308 308651 0 0 3 0x14280 nfsidl nfsio 40121 61652 0 0 3 0x14280 nfsidl nfsio 71132 274095 0 0 3 0x14280 nfsidl nfsio 47611 359268 47181 0 2 0x8000002 syz-executor.1 85888 36108 47181 0 2 0x8000002 syz-executor.6 58996 357744 0 0 3 0x14200 bored sosplice 60652 195507 47181 0 3 0x8000082 nanoslp syz-executor.7 92864 66883 47181 0 3 0x8000082 nanoslp syz-executor.5 82559 254984 47181 0 3 0x8000082 nanoslp syz-executor.4 57879 122645 47181 0 2 0x8000002 syz-executor.3 87094 38200 47181 0 3 0x8000082 nanoslp syz-executor.0 4800 38444 47181 0 2 0x8000002 syz-executor.2 47181 269947 61362 0 3 0x1a000082 wait syz-fuzzer 47181 2972 61362 0 3 0x1e000082 nanoslp syz-fuzzer 47181 165667 61362 0 3 0x1e000082 thrsleep syz-fuzzer 47181 191434 61362 0 3 0x1e000082 wait syz-fuzzer 47181 366268 61362 0 3 0x1e000082 wait syz-fuzzer 47181 372808 61362 0 3 0x1e000082 thrsleep syz-fuzzer 47181 272084 61362 0 3 0x1e000082 thrsleep syz-fuzzer 47181 86521 61362 0 3 0x1e000082 wait syz-fuzzer 47181 334440 61362 0 3 0x1e000082 wait syz-fuzzer 47181 437570 61362 0 3 0x1e000082 wait syz-fuzzer 47181 68281 61362 0 3 0x1e000082 thrsleep syz-fuzzer 47181 503725 61362 0 3 0x1e000082 wait syz-fuzzer 47181 46267 61362 0 3 0x1e000082 wait syz-fuzzer 47181 63587 61362 0 3 0x1e000082 kqread syz-fuzzer 61362 310750 74480 0 3 0x810008a sigsusp ksh 74480 430282 37036 0 3 0x1800009a kqread sshd 20669 493207 1 0 3 0x18100083 ttyin getty 37036 34876 1 0 3 0x18000088 kqread sshd 98132 66519 12895 73 3 0x19100010 biowait syslogd 12895 218759 1 0 3 0x18100082 sbwait syslogd 57844 433765 1 0 3 0x18100080 kqread resolvd 16336 190400 56040 77 3 0x18100092 kqread dhcpleased 88242 392883 56040 77 3 0x18100092 kqread dhcpleased 56040 251588 1 0 3 0x18000080 kqread dhcpleased 30756 377796 0 0 3 0x14200 bored smr 88906 493355 0 0 2 0x14200 zerothread 30169 245410 0 0 3 0x14200 aiodoned aiodoned 71227 513685 0 0 3 0x14200 syncer update 35834 431665 0 0 3 0x14200 cleaner cleaner 28168 410173 0 0 3 0x14200 reaper reaper 78595 138589 0 0 3 0x14200 pgdaemon pagedaemon 47157 517121 0 0 3 0x14200 bored viomb 4801 451704 0 0 3 0x40014200 acpi0 acpi0 67676 509886 0 0 3 0x14200 bored softnet3 75404 380618 0 0 3 0x14200 bored softnet2 99394 444064 0 0 3 0x14200 bored softnet1 84241 505234 0 0 3 0x14200 bored softnet0 47786 483536 0 0 3 0x14200 bored systqmp 53635 91272 0 0 3 0x14200 bored systq 62930 451799 0 0 3 0x40014200 tmoslp softclock 2653 234508 0 0 3 0x40014200 idle0 1 475874 0 0 3 0x8000082 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 10175 6416K 6535K 166960K 12240 0 pcb 17 12K 12K 166960K 82 0 rtable 214 8K 9K 166960K 496 0 pf 29 8K 9K 166960K 41 0 ifaddr 39 10K 11K 166960K 63 0 ifgroup 50 2K 2K 166960K 72 0 sysctl 1 0K 0K 166960K 1 0 counters 30 17K 17K 166960K 35 0 ioctlops 0 0K 2K 166960K 66 0 iov 0 0K 20K 166960K 26 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1403 88K 88K 166960K 1815 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 82 0 dirhash 15 2K 3K 166960K 81 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 14 49K 69K 166960K 664 0 sigio 0 0K 0K 166960K 9 0 proc 58 59K 75K 166960K 604 0 subproc 104 6K 7K 166960K 143 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 93 0 in_multi 87 6K 7K 166960K 150 0 ether_multi 1 0K 0K 166960K 4 0 mrt 1 0K 0K 166960K 1 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 466 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 246 91K 120K 166960K 7910 0 UVM aobj 24 2K 2K 166960K 28 0 pinsyscall 34 68K 100K 166960K 1873 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 34 0 NDP 11 0K 2K 166960K 38 0 temp 74 6812K 6892K 166960K 26803 0 kqueue 12 18K 30K 166960K 100 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 120 104 0 100 1 0 1 1 0 8 0 rtentry 112 154 0 57 4 0 4 4 0 8 0 unpcb 144 581 0 568 6 5 1 6 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 sackhl 24 1 0 1 1 0 1 1 0 8 1 tcpcb 808 187 0 182 3 1 2 2 0 8 1 arp 88 26 0 11 1 0 1 1 0 8 0 ipq 40 2 0 1 2 1 1 1 0 8 0 ipqe 40 46 0 45 2 1 1 1 0 8 0 inpcb 352 600 0 592 3 1 2 2 0 8 1 nd6 104 34 0 13 1 0 1 1 0 8 0 pkpcb 40 32 0 32 2 1 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 595 0 189 29 0 29 29 0 8 3 art_table 32 596 0 189 4 0 4 4 0 8 0 art_node 16 153 0 67 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 78 0 68 1 0 1 1 0 8 0 shmpl 112 25 0 4 1 0 1 1 0 8 0 dirhash 1024 63 0 44 3 0 3 3 0 8 0 dino2pl 256 2616 0 1102 96 0 96 96 0 8 0 ffsino 240 2616 0 1102 91 0 91 91 0 8 0 nchpl 144 3631 0 1903 66 0 66 66 0 8 0 uvmvnodes 80 3025 0 0 62 0 62 62 0 8 0 vnodes 216 3025 0 0 169 0 169 169 0 8 0 namei 1024 12605 0 12605 3 2 1 3 0 8 1 vcpupl 3904 2 0 1 1 0 1 1 0 8 0 vmpool 664 5 0 4 1 0 1 1 0 8 0 kstatmem 264 32 0 10 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 19607 0 19606 8 7 1 8 1 8 0 plimitpl 152 100 0 85 1 0 1 1 0 8 0 sigapl 424 980 0 917 8 0 8 8 0 8 0 futexpl 64 10761 0 10760 1 0 1 1 0 8 0 knotepl 120 5367 0 5284 11 0 11 11 0 8 8 kqueuepl 184 173 0 165 1 0 1 1 0 8 0 pipepl 288 204 0 176 4 1 3 3 0 8 0 fdescpl 432 943 0 918 4 0 4 4 0 8 0 filepl 120 5425 0 5188 13 4 9 12 0 8 0 lockfpl 104 166 0 164 1 0 1 1 0 8 0 lockfspl 48 76 0 74 1 0 1 1 0 8 0 sessionpl 144 26 0 10 1 0 1 1 0 8 0 pgrppl 48 53 0 37 1 0 1 1 0 8 0 ucredpl 104 594 0 584 1 0 1 1 0 8 0 zombiepl 144 918 0 917 1 0 1 1 0 8 0 processpl 1072 980 0 917 5 0 5 5 0 8 0 procpl 656 1644 0 1566 8 0 8 8 0 8 0 sosppl 168 15 0 15 2 1 1 1 0 8 1 sockpl 504 1361 0 1336 24 18 6 21 0 8 2 mcl64k 65536 3 0 3 2 1 1 1 0 8 1 mcl12k 12288 2 0 2 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 37 0 37 2 1 1 1 0 8 1 mcl4k 4096 8 0 8 1 1 0 1 0 8 0 mcl2k 2048 19219 0 19117 42 24 18 36 0 8 3 mtagpl 96 32 0 8 1 0 1 1 0 8 0 mbufpl 256 51988 0 51745 30 12 18 23 0 8 0 bufpl 280 6474 0 183 450 0 450 450 0 8 0 anonpl 24 262090 0 256546 98 28 70 70 0 188 29 amapchunkpl 152 27813 0 27244 52 10 42 42 0 158 14 amappl16 200 6624 0 6505 18 4 14 18 0 8 6 amappl15 192 30 0 28 1 0 1 1 0 8 0 amappl14 184 160 0 149 2 1 1 2 0 8 0 amappl13 176 18 0 18 1 1 0 1 0 8 0 amappl12 168 1625 0 1600 2 0 2 2 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 45 0 36 1 0 1 1 0 8 0 amappl9 144 132 0 131 1 0 1 1 0 8 0 amappl8 136 81 0 56 1 0 1 1 0 8 0 amappl7 128 46 0 35 1 0 1 1 0 8 0 amappl6 120 372 0 355 2 1 1 2 0 8 0 amappl5 112 173 0 161 1 0 1 1 0 8 0 amappl4 104 521 0 489 2 0 2 2 0 8 0 amappl3 96 5858 0 5796 4 1 3 3 0 8 0 amappl2 88 1374 0 1308 4 2 2 4 0 8 0 amappl1 80 11335 0 10845 22 10 12 22 0 8 0 amappl 88 7325 0 7164 6 0 6 6 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 27 0 4 1 0 1 1 0 8 0 uaddrrnd 24 948 0 922 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 948 0 922 1 0 1 1 0 8 0 vmmpekpl 168 11344 0 11298 3 0 3 3 0 8 0 vmmpepl 168 77873 0 76178 129 33 96 113 0 357 12 vmsppl 344 947 0 922 3 0 3 3 0 8 0 rwobjpl 24 29595 0 25524 27 2 25 25 0 8 0 pdppl 4096 1902 0 1845 127 61 66 70 0 8 9 pvpl 32 602100 0 591049 443 277 166 373 0 265 55 pmappl 216 947 0 922 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 462 0 125 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace end trace frame: 0x0, count: -1 ddb> machine ddbcpu 1 No such command ddb> trace end trace frame: 0x0, count: -1