uvm_fault(0xfffffd806c227168, 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 *193661 98384 0 0 0x4000000 0 syz-executor ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff800037663c00,ffff800037603370,ffff8000376032c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037603370) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6cb2b43580, 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(0xfffffd806c227168, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff800037663c00,ffff800037603370,ffff8000376032c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037603370) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6cb2b43580, count: -5 ddb> show registers rdi 0xffff800037663c00 rsi 0xffffffffffffffff rbp 0xffff800037603090 rbx 0xfffffd807f7d78f0 rdx 0 rcx 0xa0001430 rax 0xffff800037663c00 r8 0xfffffd807440f7b0 r9 0xfffffd807f7d78f0 r10 0x1144c678cda211d0 r11 0x758c83a6b5b89e4d r12 0xffff800037663c00 r13 0x1 r14 0xffffffffffffffff r15 0xa0001430 rip 0xffffffff81ef8b18 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800037603010 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=193661 pid=98384 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000376636f0,0xffff800037662548 process=0xffff8000ffff5580 user=0xffff8000375fe000, vmspace=0xfffffd806c227168 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53533 76751 23539 0 3 0x80 fsleep syz-executor 53533 9982 23539 0 2 0x4000000 syz-executor 98384 395082 44277 0 3 0x80 fsleep syz-executor *98384 193661 44277 0 7 0x4000000 syz-executor 98384 94097 44277 0 3 0x4000080 fsleep syz-executor 18910 50033 57381 0 3 0x80 fsleep syz-executor 18910 427930 57381 0 3 0x4000080 fifor syz-executor 7070 300828 74888 0 3 0x90 fsleep syz-executor 7070 102315 74888 0 3 0x4000090 sbwait syz-executor 2538 79663 3658 0 3 0x80 fsleep syz-executor 2538 86161 3658 0 3 0x4000080 kqsel syz-executor 1239 32106 4760 0 3 0x80 fsleep syz-executor 1239 85502 4760 0 3 0x4000080 fsleep syz-executor 1239 445658 4760 0 3 0x4000080 sbwait syz-executor 1239 252343 4760 0 3 0x4000080 fsleep syz-executor 28767 45700 3118 0 3 0x80 fsleep syz-executor 28767 409766 3118 0 3 0x4000080 kqpoll syz-executor 57381 142237 2712 0 3 0x82 nanoslp syz-executor 44277 70400 2712 0 3 0x82 nanoslp syz-executor 66862 315019 0 0 3 0x14200 acct acct 37111 317718 1 0 3 0x100083 ttyin getty 74596 355548 0 0 3 0x14200 bored sosplice 3118 497927 2712 0 3 0x82 nanoslp syz-executor 23539 406952 2712 0 3 0x82 nanoslp syz-executor 23502 140010 2712 0 2 0x2 syz-executor 4760 162481 2712 0 3 0x82 nanoslp syz-executor 3658 17346 2712 0 3 0x82 nanoslp syz-executor 74888 299876 2712 0 3 0x82 nanoslp syz-executor 2712 122923 64145 0 3 0x82 kqread syz-executor 64145 495464 98448 0 3 0x10008a sigsusp ksh 98448 457675 71364 0 3 0x98 kqread sshd-session 71364 346183 1 0 3 0x92 kqread sshd-session 27344 60014 17790 73 3 0x1100090 kqread syslogd 17790 94113 1 0 3 0x100082 sbwait syslogd 27215 515300 1 0 3 0x100080 kqread resolvd 32196 73872 45935 77 3 0x100092 kqread dhcpleased 10676 288573 45935 77 3 0x100092 kqread dhcpleased 45935 419791 1 0 3 0x80 kqread dhcpleased 85826 323142 0 0 3 0x14200 bored smr 61364 19598 0 0 3 0x14200 pgzero zerothread 32628 275787 0 0 3 0x14200 aiodoned aiodoned 68228 519560 0 0 3 0x14200 syncer update 88186 220635 0 0 3 0x14200 cleaner cleaner 97256 257148 0 0 3 0x14200 reaper reaper 38791 18526 0 0 3 0x14200 pgdaemon pagedaemon 21110 513746 0 0 3 0x14200 bored viomb 4328 46806 0 0 3 0x40014200 acpi0 acpi0 37565 48024 0 0 3 0x14200 bored softnet3 93394 110247 0 0 3 0x14200 bored softnet2 65880 25527 0 0 3 0x14200 bored softnet1 87464 331346 0 0 2 0x14200 softnet0 67230 486308 0 0 3 0x14200 bored systqmp 82636 203877 0 0 3 0x14200 bored systq 49500 365149 0 0 3 0x40014200 tmoslp softclock 47704 128110 0 0 3 0x40014200 idle0 1 432321 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 10207 11119K 11412K 166960K 12291 0 pcb 18 14K 16K 166960K 223 0 rtable 197 6K 7K 166960K 514 0 pf 36 14K 16K 166960K 94 0 ifaddr 39 7K 7K 166960K 81 0 ifgroup 50 2K 2K 166960K 124 0 sysctl 4 1K 1K 166960K 4 0 counters 30 17K 17K 166960K 51 0 ioctlops 0 0K 4K 166960K 80 0 iov 0 0K 20K 166960K 54 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1493 94K 94K 166960K 2115 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 17 5K 8K 166960K 28 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 17 61K 97K 166960K 801 0 sigio 0 0K 0K 166960K 10 0 proc 60 59K 124K 166960K 602 0 subproc 104 6K 6K 166960K 145 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 90 0 in_multi 91 6K 7K 166960K 179 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 2K 166960K 495 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 215 72K 85K 166960K 8685 0 UVM aobj 22 4K 4K 166960K 26 0 pinsyscall 36 72K 108K 166960K 1911 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 36 0 NDP 11 0K 2K 166960K 55 0 temp 61 6811K 6880K 166960K 38985 0 kqueue 12 18K 28K 166960K 123 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 120 134 0 131 2 1 1 2 0 8 0 rtentry 112 158 0 70 4 0 4 4 0 8 0 unpcb 144 947 0 920 7 3 4 4 0 8 2 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 341 0 334 14 6 8 8 0 8 7 arp 88 27 0 12 1 0 1 1 0 8 0 ipq 40 4 0 2 2 1 1 1 0 8 0 ipqe 40 9 0 6 2 1 1 1 0 8 0 inpcb 336 1040 0 1028 17 10 7 12 0 8 5 nd6 104 37 0 15 1 0 1 1 0 8 0 pkpcb 40 137 0 137 2 1 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1072 8 0 8 2 1 1 1 0 8 1 pfstscr 40 3 0 1 1 0 1 1 0 8 0 pfstitem 24 7 0 2 1 0 1 1 0 8 0 pfstkey 128 12 0 7 1 0 1 1 0 8 0 pfstate 344 7 0 4 1 0 1 1 0 8 0 pfrule 1344 5 0 5 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 646 0 228 29 2 27 29 0 8 0 art_table 32 647 0 228 4 0 4 4 0 8 0 art_node 16 155 0 77 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 9 1 0 1 1 0 8 0 semapl 112 19 0 4 1 0 1 1 0 8 0 shmpl 112 23 0 4 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2827 0 1326 95 0 95 95 0 8 0 ffsino 240 2827 0 1326 89 0 89 89 0 8 0 nchpl 144 3912 0 2223 63 0 63 63 0 8 0 uvmvnodes 80 3346 0 0 69 0 69 69 0 8 0 vnodes 216 3346 0 0 186 0 186 186 0 8 0 namei 1024 14277 0 14276 2 1 1 2 0 8 0 kstatmem 264 64 0 42 2 0 2 2 0 8 0 scxspl 216 11868 0 11868 15 7 8 8 1 8 8 plimitpl 152 266 0 250 1 0 1 1 0 8 0 sigapl 424 1080 0 1034 7 1 6 7 0 8 0 futexpl 64 9921 0 9911 1 0 1 1 0 8 0 knotepl 120 28596 0 28551 17 7 10 17 0 8 8 kqueuepl 184 343 0 333 7 3 4 4 0 8 3 pipepl 288 228 0 201 8 1 7 7 0 8 4 fdescpl 432 1061 0 1033 5 1 4 5 0 8 0 filepl 120 8343 0 8080 21 5 16 16 0 8 6 lockfpl 104 345 0 343 2 0 2 2 0 8 1 lockfspl 48 154 0 152 1 0 1 1 0 8 0 sessionpl 144 26 0 19 1 0 1 1 0 8 0 pgrppl 48 46 0 31 1 0 1 1 0 8 0 ucredpl 104 1258 0 1246 1 0 1 1 0 8 0 zombiepl 144 1034 0 1034 1 0 1 1 0 8 1 processpl 1096 1080 0 1034 4 0 4 4 0 8 0 procpl 648 2044 0 1988 6 0 6 6 0 8 0 sosppl 168 4 0 4 2 1 1 1 0 8 1 sockpl 504 2266 0 2223 29 16 13 20 0 8 6 mcl64k 65536 76 0 76 2 1 1 1 0 8 1 mcl8k 8192 16 0 16 2 1 1 1 0 8 1 mcl4k 4096 3461 0 3412 16 9 7 16 0 8 0 mcl2k 2048 835 0 834 6 2 4 4 0 8 3 mtagpl 96 26 0 13 1 0 1 1 0 8 0 mbufpl 256 17849 0 17688 24 9 15 24 0 8 0 bufpl 280 4347 0 133 301 0 301 301 0 8 0 anonpl 24 224959 0 221970 54 10 44 44 0 187 18 amapchunkpl 152 28968 0 28487 32 6 26 27 0 158 5 amappl16 200 5766 0 5738 28 16 12 15 0 8 8 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 122 0 113 1 0 1 1 0 8 0 amappl13 176 82 0 82 1 1 0 1 0 8 0 amappl12 168 1722 0 1694 3 1 2 3 0 8 0 amappl11 160 46 0 36 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 106 0 105 1 0 1 1 0 8 0 amappl8 136 17 0 16 1 0 1 1 0 8 0 amappl7 128 108 0 99 1 0 1 1 0 8 0 amappl6 120 195 0 193 1 0 1 1 0 8 0 amappl5 112 137 0 129 1 0 1 1 0 8 0 amappl4 104 298 0 286 1 0 1 1 0 8 0 amappl3 96 5381 0 5290 3 0 3 3 0 8 0 amappl2 88 1343 0 1273 3 1 2 3 0 8 0 amappl1 80 9528 0 9098 14 3 11 14 0 8 0 amappl 88 8236 0 8069 5 0 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 25 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1061 0 1033 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1061 0 1033 1 0 1 1 0 8 0 vmmpekpl 168 9343 0 9294 3 0 3 3 0 8 0 vmmpepl 168 71954 0 70357 92 8 84 84 0 357 9 vmsppl 344 1060 0 1033 4 1 3 4 0 8 0 rwobjpl 24 26334 0 22218 26 0 26 26 0 8 1 pdppl 4096 2129 0 2066 109 42 67 83 0 8 4 pvpl 32 505178 0 497137 126 18 108 108 0 265 28 pmappl 216 1060 0 1033 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 450 0 103 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff800037663c00,ffff800037603370,ffff8000376032c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037603370) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6cb2b43580, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff800037663c00,ffffffffffffffff,0,a0001430,fffffd807440f7b0,fffffd807f7d78f0) at ktrops+0x58 sys/kern/kern_ktrace.c:561 doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807440f7b0,4,20001430,ffffffff,ffff800037663c00) at doktrace+0x57d sys/kern/kern_ktrace.c:493 sys_ktrace(ffff800037663c00,ffff800037603370,ffff8000376032c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549 syscall(ffff800037603370) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6cb2b43580, count: -5