uvm_fault(0xfffff2000b94d5d8, 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 *456669 85898 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7654d8,ffff80003c513660,ffff80003c5135b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c513660) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c513660) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb05cd7c4980, 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(0xfffff2000b94d5d8, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7654d8,ffff80003c513660,ffff80003c5135b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c513660) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c513660) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb05cd7c4980, count: -5 ddb> show registers rdi 0xffff80002ccaa000 rsi 0x789 rbp 0xffff80003c513380 rbx 0xfffff20007ffd478 rdx 0xffff80002ccaa000 rcx 0x788 rax 0xffffffff821cab53 ktrops+0x43 r8 0xfffff2006f09cc20 r9 0xfffff20007ffd478 r10 0xb81ada6d69fc9bde r11 0xcc1a23e7f4794ae9 r12 0xffff80002a7654d8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff821cab68 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c513300 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=456669 pid=85898 tcnt=2 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=0xffff80002a765240,0xffff80002a765780 process=0xffff800045ffa458 user=0xffff80003c50e000, vmspace=0xfffff2000b94d5d8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 61011 409679 3446 0 2 0 0 syz-executor 61011 143619 3446 0 2 0 0x4000000 syz-executor 27129 94105 79933 0 2 0 0 syz-executor 27129 86908 79933 0 3 0 0x4000080 fsleep syz-executor 27129 452738 79933 0 3 0 0x4000080 ttyout syz-executor 85898 96806 46757 0 2 0 0 syz-executor *85898 456669 46757 0 7 0 0x4000000 syz-executor 73965 315297 64315 0 2 0 0 syz-executor 73965 176479 64315 0 3 0 0x4000080 sbwait syz-executor 73965 115961 64315 0 2 0 0x4000000 syz-executor 73965 499021 64315 0 3 0 0x4000080 fsleep syz-executor 1590 419592 68896 0 3 0 0 vmmaplk syz-executor 1590 507777 68896 0 3 0 0x4000080 kqsel syz-executor 1590 359310 68896 0 2 0 0x4000000 syz-executor 64315 146576 38092 0 2 0x2 0xc80 syz-executor 52980 209057 1 0 3 0x100003 0x80 ttyin getty 79933 311063 38092 0 2 0x2 0xc80 syz-executor 3446 447837 38092 0 3 0x2 0x80 nanoslp syz-executor 88404 130005 38092 0 2 0x2 0 syz-executor 37369 14215 38092 0 2 0x2 0 syz-executor 68896 325165 38092 0 2 0x2 0xc80 syz-executor 56312 430227 38092 0 2 0x2 0 syz-executor 46757 457331 38092 0 2 0x2 0xc80 syz-executor 38092 210016 58292 0 3 0x2 0x80 kqread syz-executor 58292 345283 48997 0 3 0x100002 0x88 sigsusp ksh 48997 447997 59992 0 3 0x10 0x88 kqread sshd-session 59992 336504 39119 0 3 0x12 0x80 kqread sshd-session 39119 134219 1 0 3 0 0x88 kqread sshd 26010 462850 71014 73 3 0x1100010 0x80 kqread syslogd 71014 434980 1 0 3 0x100002 0x80 sbwait syslogd 35811 264126 1 0 3 0x100000 0x80 kqread resolvd 56387 520014 38557 77 3 0x100012 0x80 kqread dhcpleased 3903 282417 38557 77 3 0x100012 0x80 kqread dhcpleased 38557 299606 1 0 3 0 0x80 kqread dhcpleased 57598 489264 0 0 3 0x14000 0x200 bored smr 83071 140585 0 0 2 0x14000 0x200 zerothread 79501 230850 0 0 3 0x14000 0x200 aiodoned aiodoned 14481 415032 0 0 3 0x14000 0x200 syncer update 51908 489119 0 0 3 0x14000 0x200 cleaner cleaner 54942 433915 0 0 3 0x14000 0x200 reaper reaper 72784 285351 0 0 3 0x14000 0x200 pgdaemon pagedaemon 16240 340891 0 0 3 0x14000 0x200 bored viomb 730 468085 0 0 3 0x14000 0x40000200 acpi0 acpi0 78706 476693 0 0 3 0x14000 0x200 bored softnet0 98 519678 0 0 3 0x14000 0x200 bored systqmp 69806 312299 0 0 3 0x14000 0x200 bored systq 53898 242296 0 0 3 0x14000 0x40000200 tmoslp softclock 87742 205310 0 0 3 0x14000 0x40000200 idle0 1 176317 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 11031 12103K 12643K 166960K 12456 0 pcb 17 14K 16K 166960K 49 0 rtable 247 7K 8K 166960K 496 0 pf 32 13K 14K 166960K 57 0 ifaddr 43 7K 8K 166960K 72 0 ifgroup 50 2K 2K 166960K 85 0 sysctl 3 1K 9K 166960K 8 0 counters 33 17K 18K 166960K 48 0 ioctlops 0 0K 4K 166960K 66 0 iov 0 0K 12K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1326 83K 84K 166960K 1541 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 9K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 14 1K 1K 166960K 17 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 110K 166960K 353 0 proc 59 59K 124K 166960K 637 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 5 0 in_multi 103 6K 7K 166960K 152 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 55 254K 254K 166960K 55 0 exec 0 0K 1K 166960K 437 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 213 159K 167K 166960K 4607 0 UVM aobj 12 2K 2K 166960K 12 0 pinsyscall 36 72K 96K 166960K 1564 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 11 0K 2K 166960K 47 0 temp 38 9106K 9155K 166960K 21152 0 kqueue 13 20K 26K 166960K 46 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 58 0 54 1 0 1 1 0 8 0 rtentry 136 160 0 47 4 0 4 4 0 8 0 unpcb 144 147 0 130 2 0 2 2 0 8 1 syncache 336 8 0 8 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 191 0 186 13 0 13 13 0 8 12 arp 96 26 0 8 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 328 393 0 385 13 0 13 13 0 8 11 nd6 112 39 0 13 1 0 1 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 10 0 10 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 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 2 0 1 1 0 1 1 0 8 0 pftag 88 1 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 2 0 1 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 658 0 189 32 0 32 32 0 8 2 art_table 40 659 0 189 6 0 6 6 0 8 0 art_node 32 160 0 58 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 15 0 3 1 0 1 1 0 8 0 shmpl 120 9 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1864 0 398 92 0 92 92 0 8 0 ffsino 256 1865 0 398 92 0 92 92 0 8 0 nchpl 144 2279 0 575 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 2074 0 0 116 0 116 116 0 8 0 namei 1024 8160 0 8157 3 0 3 3 0 8 2 kstatmem 264 47 0 24 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 7761 0 7761 4 0 4 4 1 8 4 plimitpl 152 50 0 33 1 0 1 1 0 8 0 sigapl 424 637 0 597 6 0 6 6 0 8 1 knotepl 120 7649 0 7602 2 0 2 2 0 8 0 kqueuepl 184 90 0 80 3 0 3 3 0 8 2 pipepl 304 144 0 117 3 0 3 3 0 8 0 fdescpl 448 624 0 597 5 0 5 5 0 8 1 filepl 120 2726 0 2510 11 0 11 11 0 8 2 lockfpl 104 63 0 61 1 0 1 1 0 8 0 lockfspl 48 32 0 30 1 0 1 1 0 8 0 sessionpl 144 36 0 28 1 0 1 1 0 8 0 pgrppl 48 49 0 33 1 0 1 1 0 8 0 ucredpl 104 236 0 225 1 0 1 1 0 8 0 zombiepl 144 597 0 597 1 0 1 1 0 8 1 processpl 1160 637 0 597 4 0 4 4 0 8 0 procpl 664 860 0 811 5 0 5 5 0 8 0 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 552 602 0 573 13 0 13 13 0 8 9 mcl64k 65536 74 0 72 1 0 1 1 0 8 0 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2716 0 2666 14 0 14 14 0 8 7 mcl2k 2048 307 0 305 3 0 3 3 0 8 2 mextrefs 64 155 0 155 1 0 1 1 0 8 1 mtagpl 96 5 0 5 1 0 1 1 0 8 1 mbufpl 256 7635 0 7466 75 52 23 75 0 8 8 bufpl 272 2846 0 102 183 0 183 183 0 8 0 anonpl 24 106575 0 101447 33 0 33 33 0 187 1 amapchunkpl 152 14364 0 13790 34 0 34 34 0 158 10 amappl16 200 1618 0 1595 5 0 5 5 0 8 3 amappl15 192 11 0 11 1 0 1 1 0 8 1 amappl14 184 460 0 459 1 0 1 1 0 8 0 amappl13 176 139 0 129 1 0 1 1 0 8 0 amappl12 168 926 0 900 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 0 1 1 0 8 1 amappl10 152 56 0 46 1 0 1 1 0 8 0 amappl9 144 271 0 270 1 0 1 1 0 8 0 amappl8 136 112 0 111 1 0 1 1 0 8 0 amappl7 128 148 0 137 1 0 1 1 0 8 0 amappl6 120 192 0 191 1 0 1 1 0 8 0 amappl5 112 126 0 119 1 0 1 1 0 8 0 amappl4 104 275 0 260 1 0 1 1 0 8 0 amappl3 96 2501 0 2413 3 0 3 3 0 8 0 amappl2 88 728 0 661 2 0 2 2 0 8 0 amappl1 80 11288 0 10742 14 0 14 14 0 8 2 amappl 88 3811 0 3661 4 0 4 4 0 92 0 uvmvnodes 80 101 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 128 254 0 254 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 11 0 0 1 0 1 1 0 8 0 uaddrrnd 24 624 0 597 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 624 0 597 1 0 1 1 0 8 0 vmmpekpl 168 6790 0 6749 3 0 3 3 0 8 0 vmmpepl 168 48590 0 46903 82 0 82 82 0 357 2 vmsppl 368 623 0 597 4 0 4 4 0 8 1 rwobjpl 40 16454 0 15513 11 0 11 11 0 8 0 pdppl 4096 1255 0 1194 105 38 67 83 0 8 6 pvpl 32 283520 0 272094 99 0 99 99 0 265 1 pmappl 216 623 0 597 3 0 3 3 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 634 0 90 17 0 17 17 0 8 1 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7654d8,ffff80003c513660,ffff80003c5135b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c513660) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c513660) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb05cd7c4980, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7654d8,ffffffffffffffff,0,a0c7df9f,fffff2006f09cc20,fffff20007ffd478) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2006f09cc20,4,20c7df9f,0,ffff80002a7654d8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7654d8,ffff80003c513660,ffff80003c5135b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c513660) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c513660) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb05cd7c4980, count: -5