uvm_fault(0xfffff2806d165e78, 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 *394899 43264 0 0 0x4000000 0 syz-executor ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a77cfa8,ffff80003c905b10,ffff80003c905a60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c905b10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c905b10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8312e4cbc20, 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(0xfffff2806d165e78, 0xf, 0, 1) -> e ddb> show kasan No such command ddb> trace ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a77cfa8,ffff80003c905b10,ffff80003c905a60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c905b10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c905b10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8312e4cbc20, count: -5 ddb> show registers rdi 0xffff80002a77cfa8 rsi 0xffffffffffffffff rbp 0xffff80003c905830 rbx 0xfffff28007ffd6e8 rdx 0 rcx 0xa0001916 rax 0xffff80002a77cfa8 r8 0xfffff2806ba938b0 r9 0xfffff28007ffd6e8 r10 0xbfd533a84c6792df r11 0xd7f31ee4c817db3c r12 0xffff80002a77cfa8 r13 0x1 r14 0xffffffffffffffff r15 0xa0001916 rip 0xffffffff82266468 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9057b0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=394899 pid=43264 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=0xffff800035ccf780,0xffff80002a77d780 process=0xffff800045ffb618 user=0xffff80003c900000, vmspace=0xfffff2806d165e78 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 43264 504550 27294 0 2 0 0 syz-executor *43264 394899 27294 0 7 0 0x4000000 syz-executor 43264 362805 27294 0 2 0 0x4000000 syz-executor 10922 68174 77300 0 2 0x10 0 syz-executor 10922 65389 77300 0 3 0x10 0x4000080 fsleep syz-executor 6389 324129 12603 60929 2 0x10 0 syz-executor 6389 362262 12603 60929 3 0x10 0x4000080 lockf syz-executor 6389 47212 12603 60929 3 0x10 0x4000080 fsleep syz-executor 30561 244672 13847 0 2 0 0 syz-executor 30561 53021 13847 0 3 0 0x4000080 fsleep syz-executor 30561 43243 13847 0 3 0 0x4000080 fsleep syz-executor 71192 46596 42271 0 3 0 0x80 nanoslp syz-executor 71192 274343 42271 0 3 0 0x4000080 kqpoll syz-executor 71192 30193 42271 0 3 0 0x4000080 fsleep syz-executor 36606 319903 16912 0 2 0 0xc80 syz-executor 36606 505485 16912 0 3 0 0x4000080 ttyin syz-executor 36606 20933 16912 0 3 0 0x4000080 fsleep syz-executor 1319 37194 23404 0 2 0 0xc80 syz-executor 1319 400061 23404 0 3 0 0x4000080 kqread syz-executor 1319 89933 23404 0 3 0 0x4000080 fsleep syz-executor 32049 406445 15196 0 2 0x10 0xc80 syz-executor 32049 388897 15196 0 3 0x10 0x4000080 kqread syz-executor 32049 386240 15196 0 3 0x10 0x4000080 fsleep syz-executor 32049 135811 15196 0 3 0x10 0x4000080 fsleep syz-executor 39145 276129 1 0 3 0 0x80 nanoslp init 13847 91432 24885 0 2 0x2 0 syz-executor 27294 39926 24885 0 2 0x2 0x880 syz-executor 16912 51213 24885 0 2 0x2 0x80 syz-executor 15196 330306 24885 0 2 0x2 0x80 syz-executor 12603 116082 24885 0 2 0x2 0x880 syz-executor 77300 332189 24885 0 2 0x2 0x80 syz-executor 23404 248557 24885 0 2 0x2 0x880 syz-executor 42271 263502 24885 0 2 0x2 0x80 syz-executor 24885 513339 1 0 3 0x2 0x80 kqread syz-executor 62932 23682 1 0 3 0x2 0x88 kqread sshd 81507 69206 42347 73 3 0x1100010 0x80 kqread syslogd 42347 508351 1 0 3 0x100002 0x80 sbwait syslogd 78164 54477 1 0 3 0x100000 0x80 kqread resolvd 98323 269563 49432 77 3 0x100012 0x80 kqread dhcpleased 10724 81621 49432 77 3 0x100012 0x80 kqread dhcpleased 49432 306327 1 0 3 0 0x80 kqread dhcpleased 13675 230465 0 0 3 0x14000 0x200 bored smr 71442 200909 0 0 2 0x14000 0x200 zerothread 42395 127055 0 0 3 0x14000 0x200 aiodoned aiodoned 80765 215511 0 0 3 0x14000 0x200 syncer update 98164 176711 0 0 3 0x14000 0x200 cleaner cleaner 45415 259967 0 0 3 0x14000 0x200 reaper reaper 14385 514513 0 0 3 0x14000 0x200 pgdaemon pagedaemon 88279 218370 0 0 3 0x14000 0x200 bored viomb 62135 216853 0 0 3 0x14000 0x40000200 acpi0 acpi0 64234 6271 0 0 3 0x14000 0x200 bored softnet0 91020 510773 0 0 3 0x14000 0x200 bored systqmp 61564 449724 0 0 3 0x14000 0x200 bored systq 21205 299653 0 0 3 0x14000 0x40000200 tmoslp softclock 66997 265310 0 0 3 0x14000 0x40000200 idle0 1 112021 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 11049 12313K 12493K 166960K 12832 0 pcb 17 12K 12K 166960K 97 0 rtable 221 6K 6K 166960K 405 0 pf 30 13K 15K 166960K 68 0 ifaddr 39 7K 7K 166960K 62 0 ifgroup 46 2K 2K 166960K 89 0 sysctl 4 1K 9K 166960K 10 0 counters 32 17K 18K 166960K 47 0 ioctlops 0 0K 4K 166960K 97 0 iov 0 0K 16K 166960K 87 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1415 89K 90K 166960K 1889 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 37 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 18 65K 97K 166960K 518 0 sigio 0 0K 0K 166960K 5 0 proc 54 58K 91K 166960K 565 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 105 0 in_multi 88 5K 6K 166960K 114 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 18 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 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 218 130K 166K 166960K 6329 0 UVM aobj 12 2K 2K 166960K 13 0 pinsyscall 33 66K 94K 166960K 1643 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 25 0 NDP 10 0K 2K 166960K 39 0 temp 46 9112K 9170K 166960K 16654 0 kqueue 13 20K 35K 166960K 108 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 99 0 93 2 0 2 2 0 8 1 rtentry 136 128 0 27 4 0 4 4 0 8 0 unpcb 144 215 0 191 1 0 1 1 0 8 0 syncache 336 6 0 6 1 0 1 1 0 8 1 tcpcb 736 195 0 190 10 1 9 10 0 8 8 arp 96 22 0 4 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 328 442 0 433 10 1 9 10 0 8 7 ip6q 80 3 0 0 1 0 1 1 0 8 0 ip6af 40 3 0 0 1 0 1 1 0 8 0 nd6 112 26 0 5 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 7 0 7 1 0 1 1 0 8 1 pppxif 1416 3 0 3 1 0 1 1 0 8 1 pfstscr 40 3 0 1 1 0 1 1 0 8 0 pffrag 232 7 0 0 1 0 1 1 0 482 0 pffrnode 88 7 0 0 1 0 1 1 0 8 0 pffrent 40 8 0 1 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 2 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 pfrule 1360 4 0 4 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 475 0 62 29 0 29 29 0 8 2 art_table 40 476 0 62 5 0 5 5 0 8 0 art_node 32 128 0 38 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 3 1 0 1 1 0 8 0 semapl 72 35 0 25 1 0 1 1 0 8 0 shmpl 112 10 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2338 0 885 92 0 92 92 0 8 0 ffsino 256 2338 0 885 92 0 92 92 0 8 0 nchpl 144 3127 0 1422 64 0 64 64 0 8 0 vnodes 216 2734 0 0 152 0 152 152 0 8 0 namei 1024 10290 0 10290 2 0 2 2 0 8 2 kstatmem 264 45 0 24 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 11951 0 11951 3 0 3 3 1 8 3 plimitpl 152 79 0 63 1 0 1 1 0 8 0 sigapl 424 819 0 779 6 0 6 6 0 8 1 knotepl 120 31396 0 31351 17 7 10 17 0 8 8 kqueuepl 184 133 0 121 1 0 1 1 0 8 0 pipepl 304 203 0 175 5 0 5 5 0 8 2 fdescpl 448 806 0 779 5 0 5 5 0 8 1 filepl 120 4643 0 4407 11 0 11 11 0 8 3 lockfpl 104 174 0 168 1 0 1 1 0 8 0 lockfspl 48 80 0 75 1 0 1 1 0 8 0 sessionpl 144 169 0 163 1 0 1 1 0 8 0 pgrppl 48 178 0 164 1 0 1 1 0 8 0 ucredpl 104 872 0 858 1 0 1 1 0 8 0 zombiepl 144 779 0 779 1 0 1 1 0 8 1 processpl 1152 819 0 779 4 0 4 4 0 8 0 procpl 664 1388 0 1332 6 0 6 6 0 8 1 sosppl 176 4 0 4 1 0 1 1 0 8 1 sockpl 552 846 0 807 10 0 10 10 0 8 7 mcl64k 65536 63 0 58 1 0 1 1 0 8 0 mcl16k 16384 6 0 6 1 0 1 1 0 8 1 mcl9k128 9344 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 15 0 15 1 0 1 1 0 8 1 mcl4k 4096 3069 0 3018 14 0 14 14 0 8 6 mcl2k 2048 432 0 427 2 0 2 2 0 8 1 mextrefs 64 222 0 221 1 0 1 1 0 8 0 mtagpl 96 6 0 5 1 0 1 1 0 8 0 mbufpl 256 8588 0 8404 18 0 18 18 0 8 4 bufpl 272 4305 0 103 281 0 281 281 0 8 0 anonpl 24 128264 0 125420 65 0 65 65 0 187 35 amapchunkpl 152 21104 0 20597 34 0 34 34 0 158 13 amappl16 200 2252 0 2221 27 14 13 26 0 8 8 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 411 0 411 1 0 1 1 0 8 1 amappl13 176 121 0 113 1 0 1 1 0 8 0 amappl12 168 1047 0 1022 2 0 2 2 0 8 0 amappl11 160 20 0 20 1 0 1 1 0 8 1 amappl10 152 59 0 49 1 0 1 1 0 8 0 amappl9 144 275 0 275 1 0 1 1 0 8 1 amappl8 136 96 0 94 1 0 1 1 0 8 0 amappl7 128 147 0 136 1 0 1 1 0 8 0 amappl6 120 163 0 162 1 0 1 1 0 8 0 amappl5 112 91 0 85 1 0 1 1 0 8 0 amappl4 104 302 0 286 1 0 1 1 0 8 0 amappl3 96 3583 0 3488 3 0 3 3 0 8 0 amappl2 88 948 0 887 2 0 2 2 0 8 0 amappl1 80 12564 0 12203 13 0 13 13 0 8 5 amappl 88 5544 0 5377 5 0 5 5 0 92 1 uvmvnodes 80 113 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 0 1 1 0 8 1 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 256 0 256 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 12 0 1 1 0 1 1 0 8 0 uaddrrnd 24 806 0 779 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 806 0 779 1 0 1 1 0 8 0 vmmpekpl 168 8480 0 8456 2 0 2 2 0 8 0 vmmpepl 168 59590 0 58083 101 0 101 101 0 357 28 vmsppl 368 805 0 779 4 0 4 4 0 8 1 rwobjpl 40 19297 0 18472 15 0 15 15 0 8 3 pdppl 4096 1618 0 1558 104 44 60 82 0 8 0 pvpl 32 354071 0 346320 133 0 133 133 0 265 47 pmappl 216 805 0 779 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 668 0 45 18 0 18 18 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a77cfa8,ffff80003c905b10,ffff80003c905a60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c905b10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c905b10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8312e4cbc20, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a77cfa8,ffffffffffffffff,0,a0001916,fffff2806ba938b0,fffff28007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff2806ba938b0,4,20001916,ffffffff,ffff80002a77cfa8) at doktrace+0x560 sys/kern/kern_ktrace.c:503 sys_ktrace(ffff80002a77cfa8,ffff80003c905b10,ffff80003c905a60) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80003c905b10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c905b10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8312e4cbc20, count: -5 ddb>