uvm_fault(0xfffff4806d13e5d8, 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 *233951 13889 0 0 0x4000000 0 syz-executor ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002f0b6a90,ffff80003c8f70b0,ffff80003c8f7000) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c8f70b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f70b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3b901b3560, 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(0xfffff4806d13e5d8, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002f0b6a90,ffff80003c8f70b0,ffff80003c8f7000) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c8f70b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f70b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3b901b3560, count: -5 ddb> show registers rdi 0xffff80002f0b6a90 rsi 0xffffffffffffffff rbp 0xffff80003c8f6dd0 rbx 0xfffff48007ffd6e8 rdx 0 rcx 0xa0001916 rax 0xffff80002f0b6a90 r8 0xfffff4806a98fda8 r9 0xfffff48007ffd6e8 r10 0xa7a321b625fa8ddf r11 0x4fc1717956e11597 r12 0xffff80002f0b6a90 r13 0x1 r14 0xffffffffffffffff r15 0xa0001916 rip 0xffffffff8274ad98 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c8f6d50 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=233951 pid=13889 tcnt=4 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=0xffff80002f0b62c8,0xffff80002f0b6808 process=0xffff800038cdd6c0 user=0xffff80003c8f2000, vmspace=0xfffff4806d13e5d8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 81160 229248 39336 0 2 0 0 syz-executor 81160 10648 39336 0 2 0 0x4000000 syz-executor 13889 135450 41769 0 3 0 0x80 nanoslp syz-executor 13889 341060 41769 0 3 0 0x4000080 fsleep syz-executor *13889 233951 41769 0 7 0 0x4000000 syz-executor 13889 69744 41769 0 3 0 0x4000080 fsleep syz-executor 3499 489689 4830 0 3 0x10 0x80 nanoslp syz-executor 3499 46226 4830 0 3 0x10 0x4000080 kqsel syz-executor 3499 354083 4830 0 3 0x10 0x4000080 fsleep syz-executor 3499 83561 4830 0 3 0x10 0x4000080 fsleep syz-executor 99891 347851 63752 0 3 0 0x80 nanoslp syz-executor 99891 59851 63752 0 3 0 0x4000080 kqsel syz-executor 39336 518777 66634 0 3 0x2 0x80 nanoslp syz-executor 29425 15743 11220 0 3 0 0x80 nanoslp syz-executor 29425 135828 11220 0 3 0 0x4000080 kqsel syz-executor 29425 350340 11220 0 3 0 0x4000080 fsleep syz-executor 29425 190181 11220 0 3 0 0x4000080 fsleep syz-executor 87868 296209 66634 0 2 0x2 0 syz-executor 62327 347597 0 0 3 0x14000 0x280 nfsidl nfsio 77209 42314 0 0 3 0x14000 0x280 nfsidl nfsio 74271 237748 0 0 3 0x14000 0x280 nfsidl nfsio 67811 30626 0 0 3 0x14000 0x280 nfsidl nfsio 93288 264363 0 0 3 0x14000 0x280 nfsidl nfsio 95637 76073 0 0 3 0x14000 0x280 nfsidl nfsio 97088 473000 0 0 3 0x14000 0x280 nfsidl nfsio 4187 50604 0 0 3 0x14000 0x280 nfsidl nfsio 5251 271434 0 0 3 0x14000 0x280 nfsidl nfsio 91021 33567 0 0 3 0x14000 0x280 nfsidl nfsio 70344 244798 0 0 3 0x14000 0x280 nfsidl nfsio 50416 323167 0 0 3 0x14000 0x280 nfsidl nfsio 93085 100377 0 0 3 0x14000 0x280 nfsidl nfsio 2917 167425 0 0 3 0x14000 0x280 nfsidl nfsio 23648 1053 0 0 3 0x14000 0x280 nfsidl nfsio 62157 227968 0 0 3 0x14000 0x280 nfsidl nfsio 18691 125125 0 0 3 0x14000 0x280 nfsidl nfsio 19159 175449 0 0 3 0x14000 0x280 nfsidl nfsio 8961 330133 0 0 3 0x14000 0x280 nfsidl nfsio 45672 145949 0 0 3 0x14000 0x280 nfsidl nfsio 56794 82443 66634 0 2 0x2 0 syz-executor 41769 515337 66634 0 3 0x2 0x80 nanoslp syz-executor 63752 359839 66634 0 2 0x2 0xc80 syz-executor 28403 36357 66634 0 3 0x2 0x80 wait syz-executor 11220 1512 66634 0 2 0x2 0xc80 syz-executor 4830 147387 66634 0 2 0x2 0xc80 syz-executor 66634 438174 56825 0 2 0x2 0 syz-executor 56825 509029 46191 0 3 0x100002 0x88 sigsusp ksh 46191 111378 62479 0 3 0x10 0x88 kqread sshd-session 62479 94238 94695 0 3 0x12 0x80 kqread sshd-session 43722 3575 1 0 3 0x100003 0x80 ttyin getty 94695 249209 1 0 3 0 0x88 kqread sshd 61253 311142 4626 73 3 0x1100010 0x80 kqread syslogd 4626 276292 1 0 3 0x100002 0x80 sbwait syslogd 26206 64257 1 0 3 0x100000 0x80 kqread resolvd 36402 319049 89773 77 3 0x100012 0x80 kqread dhcpleased 33277 267078 89773 77 3 0x100012 0x80 kqread dhcpleased 89773 511482 1 0 3 0 0x80 kqread dhcpleased 30602 89524 0 0 3 0x14000 0x200 bored smr 19890 3077 0 0 2 0x14000 0x200 zerothread 1582 280696 0 0 3 0x14000 0x200 aiodoned aiodoned 21231 348407 0 0 3 0x14000 0x200 syncer update 11108 387367 0 0 3 0x14000 0x200 cleaner cleaner 5164 459812 0 0 3 0x14000 0x200 reaper reaper 31257 431865 0 0 3 0x14000 0x200 pgdaemon pagedaemon 70906 406274 0 0 3 0x14000 0x200 bored viomb 31290 436603 0 0 3 0x14000 0x40000200 acpi0 acpi0 56104 83259 0 0 2 0x14000 0x200 softnet0 56774 245572 0 0 3 0x14000 0x200 smrbar systqmp 77017 464025 0 0 3 0x14000 0x200 bored systq 74728 51778 0 0 3 0x14000 0x40000200 tmoslp softclock 92193 112226 0 0 3 0x14000 0x40000200 idle0 1 313579 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11050 12148K 12353K 166960K 12280 0 pcb 18 12K 12K 166960K 49 0 rtable 254 10K 10K 166960K 476 0 pf 35 14K 17K 166960K 59 0 ifaddr 44 7K 8K 166960K 63 0 ifgroup 54 2K 2K 166960K 73 0 sysctl 1 1K 9K 166960K 5 0 counters 34 17K 18K 166960K 40 0 ioctlops 0 0K 4K 166960K 69 0 iov 0 0K 8K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1322 83K 84K 166960K 1509 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 6 0K 0K 166960K 8 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 291 0 sigio 0 0K 0K 166960K 1 0 proc 59 59K 83K 166960K 589 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 48 0 in_multi 103 6K 7K 166960K 141 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 7 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 416 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 227 159K 168K 166960K 4199 0 UVM aobj 7 2K 6K 166960K 10 0 pinsyscall 37 74K 92K 166960K 1479 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 16 0K 2K 166960K 39 0 temp 39 9106K 9126K 166960K 8733 0 kqueue 13 20K 24K 166960K 45 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 45 0 41 1 0 1 1 0 8 0 rtentry 136 147 0 35 4 0 4 4 0 8 0 unpcb 144 135 0 120 4 0 4 4 0 8 3 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 37 0 32 1 0 1 1 0 8 0 arp 96 24 0 6 1 0 1 1 0 8 0 ipq 40 2 0 1 1 0 1 1 0 8 0 ipqe 40 5 0 3 1 0 1 1 0 8 0 inpcb 328 216 0 206 7 0 7 7 0 8 5 nd6 112 34 0 9 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1072 2 0 2 1 0 1 1 0 8 1 pppxif 1416 1 0 1 1 0 1 1 0 8 1 pfstscr 40 2 0 2 1 0 1 1 0 8 1 pfrktable 1344 3 0 1 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 2 1 0 1 1 0 8 1 pfstate 384 1 0 1 1 0 1 1 0 8 1 pfrule 1360 4 0 3 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 622 0 138 33 0 33 33 0 8 1 art_table 40 623 0 138 6 0 6 6 0 8 0 art_node 32 147 0 44 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 1 0 1 1 0 8 1 semapl 72 6 0 2 1 0 1 1 0 8 0 shmpl 120 5 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1784 0 320 92 0 92 92 0 8 0 ffsino 256 1785 0 320 92 0 92 92 0 8 0 nchpl 144 2138 0 436 64 0 64 64 0 8 0 vnodes 216 1967 0 0 110 0 110 110 0 8 0 namei 1024 7493 0 7491 2 0 2 2 0 8 1 vcpupl 3968 32 0 32 2 0 2 2 0 8 2 vmpool 808 2 0 2 1 0 1 1 0 8 1 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 35 0 10 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 7531 0 7531 3 0 3 3 1 8 3 plimitpl 152 43 0 26 1 0 1 1 0 8 0 sigapl 424 603 0 542 8 0 8 8 0 8 0 knotepl 120 6626 0 6579 9 0 9 9 0 8 7 kqueuepl 184 54 0 42 1 0 1 1 0 8 0 pipepl 304 141 0 114 3 0 3 3 0 8 0 fdescpl 448 570 0 542 5 0 5 5 0 8 1 filepl 120 2327 0 2112 10 0 10 10 0 8 2 lockfpl 104 50 0 47 1 0 1 1 0 8 0 lockfspl 48 24 0 21 1 0 1 1 0 8 0 sessionpl 144 29 0 21 1 0 1 1 0 8 0 pgrppl 48 41 0 25 1 0 1 1 0 8 0 ucredpl 104 203 0 191 1 0 1 1 0 8 0 zombiepl 144 543 0 542 1 0 1 1 0 8 0 processpl 1160 603 0 542 5 0 5 5 0 8 0 procpl 664 780 0 708 7 0 7 7 0 8 0 sockpl 552 399 0 370 7 0 7 7 0 8 4 mcl64k 65536 5 0 5 1 0 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2646 0 2590 17 2 15 17 0 8 7 mcl2k 2048 268 0 267 1 0 1 1 0 8 0 mextrefs 64 90 0 89 1 0 1 1 0 8 0 mtagpl 96 5 0 5 1 0 1 1 0 8 1 mbufpl 256 5417 0 5277 11 0 11 11 0 8 0 bufpl 272 2780 0 103 179 0 179 179 0 8 0 anonpl 24 75572 0 72458 32 0 32 32 0 187 6 amapchunkpl 152 11307 0 10812 25 0 25 25 0 158 4 amappl16 200 541 0 519 4 0 4 4 0 8 1 amappl15 192 2 0 2 1 0 1 1 0 8 1 amappl14 184 461 0 460 1 0 1 1 0 8 0 amappl13 176 147 0 137 1 0 1 1 0 8 0 amappl12 168 819 0 792 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 0 1 1 0 8 1 amappl10 152 130 0 120 1 0 1 1 0 8 0 amappl9 144 270 0 270 1 0 1 1 0 8 1 amappl8 136 105 0 103 1 0 1 1 0 8 0 amappl7 128 218 0 206 1 0 1 1 0 8 0 amappl6 120 176 0 175 1 0 1 1 0 8 0 amappl5 112 89 0 81 1 0 1 1 0 8 0 amappl4 104 268 0 253 1 0 1 1 0 8 0 amappl3 96 2152 0 2057 3 0 3 3 0 8 0 amappl2 88 675 0 605 2 0 2 2 0 8 0 amappl1 80 11000 0 10448 13 0 13 13 0 8 1 amappl 88 3431 0 3268 5 0 5 5 0 92 0 uvmvnodes 80 100 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 9 0 3 1 0 1 1 0 8 0 uaddrrnd 24 570 0 542 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 570 0 542 1 0 1 1 0 8 0 vmmpekpl 168 6485 0 6445 3 0 3 3 0 8 0 vmmpepl 168 44123 0 42375 82 0 82 82 0 357 0 vmsppl 368 569 0 542 4 0 4 4 0 8 1 rwobjpl 40 14594 0 13634 11 0 11 11 0 8 0 pdppl 4096 1150 0 1088 94 26 68 78 0 8 6 pvpl 32 238328 0 230204 93 0 93 93 0 265 12 pmappl 216 571 0 544 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 544 0 28 15 0 15 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002f0b6a90,ffff80003c8f70b0,ffff80003c8f7000) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c8f70b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f70b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3b901b3560, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f0b6a90,ffffffffffffffff,0,a0001916,fffff4806a98fda8,fffff48007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff4806a98fda8,4,20001916,ffffffff,ffff80002f0b6a90) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002f0b6a90,ffff80003c8f70b0,ffff80003c8f7000) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c8f70b0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c8f70b0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xe3b901b3560, count: -5