uvm_fault(0xfffffd806cb42460, 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 *333416 99160 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7b1770,ffff80003c917ba0,ffff80003c917af0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c917ba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c917ba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x936a99b1310, 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(0xfffffd806cb42460, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7b1770,ffff80003c917ba0,ffff80003c917af0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c917ba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c917ba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x936a99b1310, count: -5 ddb> show registers rdi 0xffff80002a7b1770 rsi 0xffffffffffffffff rbp 0xffff80003c9178c0 rbx 0xfffffd8007ffd410 rdx 0 rcx 0xa0c7df9f rax 0xffff80002a7b1770 r8 0xfffffd806c070478 r9 0xfffffd8007ffd410 r10 0x83522776db2161f5 r11 0x5178b41558a449ba r12 0xffff80002a7b1770 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff812ac9e8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c917840 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=333416 pid=99160 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=76, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7b0d10,0xffff80003c90afc0 process=0xffff8000ffffb618 user=0xffff80003c912000, vmspace=0xfffffd806cb42460 estcpu=26, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 16863 296062 13891 0 2 0x2 sh 99160 459628 63735 0 2 0 syz-executor *99160 333416 63735 0 7 0x4000000 syz-executor 99160 137838 63735 0 3 0x4000080 fsleep syz-executor 59420 357381 37531 0 2 0 syz-executor 59420 239575 37531 0 3 0x4000080 bell syz-executor 28229 458601 82672 0 2 0 syz-executor 28229 388723 82672 0 3 0x4000080 fsleep syz-executor 85632 418919 22239 0 2 0 syz-executor 85632 221997 22239 0 2 0x4000000 syz-executor 3154 113116 12505 0 2 0 syz-executor 3154 239555 12505 0 3 0x4000000 biowait syz-executor 13891 41510 75558 0 3 0x82 wait syz-executor 79305 142594 0 0 3 0x14200 acct acct 63735 72241 75558 0 3 0x82 nanoslp syz-executor 37531 503435 75558 0 3 0x82 nanoslp syz-executor 41281 371076 75558 0 3 0x2 biowait syz-executor 82672 488919 75558 0 2 0xc82 syz-executor 96393 410433 75558 0 2 0x2 syz-executor 22239 367502 75558 0 3 0x82 nanoslp syz-executor 12505 224241 75558 0 3 0x82 nanoslp syz-executor 75558 367892 56550 0 3 0x82 kqread syz-executor 56550 481315 34829 0 3 0x10008a sigsusp ksh 34829 413253 72220 0 3 0x98 kqread sshd-session 72220 111154 16089 0 3 0x92 kqread sshd-session 67020 365954 1 0 3 0x100083 ttyin getty 16089 321034 1 0 3 0x88 kqread sshd 82371 213785 2452 73 3 0x1100090 kqread syslogd 2452 49913 1 0 3 0x100082 sbwait syslogd 93958 448429 1 0 3 0x100080 kqread resolvd 17622 464460 86017 77 3 0x100092 kqread dhcpleased 19149 11248 86017 77 3 0x100092 kqread dhcpleased 86017 142673 1 0 3 0x80 kqread dhcpleased 87347 57896 0 0 3 0x14200 bored smr 57056 437254 0 0 2 0x14200 zerothread 27952 271806 0 0 3 0x14200 aiodoned aiodoned 7109 134305 0 0 3 0x14200 syncer update 19668 272780 0 0 3 0x14200 cleaner cleaner 44428 314912 0 0 3 0x14200 reaper reaper 33268 387686 0 0 3 0x14200 pgdaemon pagedaemon 18203 132033 0 0 3 0x14200 bored viomb 97034 369964 0 0 3 0x40014200 acpi0 acpi0 78863 252866 0 0 3 0x14200 bored softnet0 3528 408180 0 0 3 0x14200 smrbar systqmp 97867 73153 0 0 3 0x14200 bored systq 48896 11571 0 0 3 0x40014200 tmoslp softclock 61784 449625 0 0 3 0x40014200 idle0 1 223077 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 11043 12171K 12314K 166960K 12486 0 pcb 17 14K 16K 166960K 116 0 rtable 227 7K 7K 166960K 526 0 pf 33 13K 18K 166960K 55 0 ifaddr 42 7K 8K 166960K 73 0 ifgroup 54 2K 2K 166960K 86 0 sysctl 3 1K 9K 166960K 7 0 counters 34 17K 18K 166960K 107 0 ioctlops 0 0K 4K 166960K 128 0 iov 0 0K 16K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1290 81K 81K 166960K 1532 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 349 0 sigio 0 0K 0K 166960K 4 0 proc 60 59K 100K 166960K 646 0 subproc 72 4K 4K 166960K 117 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 13 0 in_multi 92 6K 7K 166960K 168 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 11 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 446 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 202 142K 159K 166960K 4664 0 UVM aobj 6 2K 2K 166960K 7 0 pinsyscall 37 74K 98K 166960K 1577 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 14 0K 2K 166960K 46 0 temp 47 9073K 9137K 166960K 5083 0 kqueue 13 20K 26K 166960K 51 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 55 0 52 1 0 1 1 0 8 0 rtentry 136 169 0 68 4 0 4 4 0 8 0 unpcb 144 210 0 193 3 0 3 3 0 8 2 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 80 0 74 4 0 4 4 0 8 3 arp 96 28 0 12 1 0 1 1 0 8 0 inpcb 328 256 0 247 7 0 7 7 0 8 6 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 2 0 0 1 0 1 1 0 8 0 nd6 112 39 0 18 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1072 66 0 66 1 0 1 1 0 8 1 pppxif 1416 65 0 65 1 0 1 1 0 8 1 pfstscr 40 3 0 0 1 0 1 1 0 8 0 pfsrclim 320 2 0 2 1 0 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 320 1 0 1 1 0 1 1 0 8 1 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 0 1 0 1 1 0 8 0 pfstate 384 2 0 0 1 0 1 1 0 8 0 pfrule 1360 1 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 687 0 270 29 0 29 29 0 8 2 art_table 40 688 0 270 5 0 5 5 0 8 0 art_node 32 169 0 77 1 0 1 1 0 8 0 sysvmsgpl 40 39 0 37 1 0 1 1 0 8 0 semapl 112 9 0 2 1 0 1 1 0 8 0 shmpl 112 4 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1838 0 374 92 0 92 92 0 8 0 ffsino 256 1838 0 374 92 0 92 92 0 8 0 nchpl 144 2231 0 529 64 0 64 64 0 8 0 vnodes 216 2028 0 0 113 0 113 113 0 8 0 namei 1024 7335 0 7333 1 0 1 1 0 8 0 kstatmem 264 41 0 16 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 8473 0 8471 8 0 8 8 1 8 7 plimitpl 152 51 0 35 1 0 1 1 0 8 0 sigapl 424 635 0 593 6 0 6 6 0 8 0 knotepl 120 8258 0 8211 17 7 10 17 0 8 8 kqueuepl 184 61 0 52 1 0 1 1 0 8 0 pipepl 304 146 0 119 3 0 3 3 0 8 0 fdescpl 448 621 0 593 5 0 5 5 0 8 1 filepl 120 2670 0 2457 9 0 9 9 0 8 2 lockfpl 104 60 0 58 1 0 1 1 0 8 0 lockfspl 48 29 0 27 1 0 1 1 0 8 0 sessionpl 144 35 0 27 1 0 1 1 0 8 0 pgrppl 48 49 0 33 1 0 1 1 0 8 0 ucredpl 104 268 0 257 1 0 1 1 0 8 0 zombiepl 144 593 0 593 1 0 1 1 0 8 1 processpl 1152 635 0 593 4 0 4 4 0 8 0 procpl 664 840 0 792 5 0 5 5 0 8 0 sockpl 552 529 0 500 8 0 8 8 0 8 5 mcl64k 65536 7 0 7 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2671 0 2614 13 0 13 13 0 8 4 mcl2k 2048 398 0 397 3 0 3 3 0 8 2 mtagpl 96 8 0 5 1 0 1 1 0 8 0 mbufpl 256 7247 0 7057 75 54 21 75 0 8 7 bufpl 280 3485 0 103 242 0 242 242 0 8 0 anonpl 24 129531 0 126557 45 0 45 45 0 187 19 amapchunkpl 152 13893 0 13482 27 0 27 27 0 158 9 amappl16 200 2584 0 2561 15 1 14 14 0 8 12 amappl15 192 37 0 37 1 0 1 1 0 8 1 amappl14 184 469 0 468 1 0 1 1 0 8 0 amappl13 176 140 0 130 1 0 1 1 0 8 0 amappl12 168 878 0 852 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 0 1 1 0 8 1 amappl10 152 70 0 60 1 0 1 1 0 8 0 amappl9 144 260 0 260 1 0 1 1 0 8 1 amappl8 136 119 0 117 1 0 1 1 0 8 0 amappl7 128 147 0 136 1 0 1 1 0 8 0 amappl6 120 215 0 213 1 0 1 1 0 8 0 amappl5 112 114 0 107 1 0 1 1 0 8 0 amappl4 104 274 0 258 1 0 1 1 0 8 0 amappl3 96 2510 0 2412 4 0 4 4 0 8 1 amappl2 88 561 0 506 2 0 2 2 0 8 0 amappl1 80 10709 0 10174 15 0 15 15 0 8 3 amappl 88 3863 0 3722 4 0 4 4 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 7 0 7 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 6 0 1 1 0 1 1 0 8 0 uaddrrnd 24 621 0 593 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 621 0 593 1 0 1 1 0 8 0 vmmpekpl 168 6570 0 6533 3 0 3 3 0 8 1 vmmpepl 168 48549 0 46883 88 0 88 88 0 357 11 vmsppl 368 620 0 593 4 0 4 4 0 8 1 rwobjpl 40 16867 0 15945 13 0 13 13 0 8 0 pdppl 4096 1248 0 1186 94 26 68 80 0 8 6 pvpl 32 299044 0 291041 104 0 104 104 0 265 26 pmappl 216 620 0 593 3 0 3 3 0 8 1 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 424 0 80 12 0 12 12 0 8 1 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7b1770,ffff80003c917ba0,ffff80003c917af0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c917ba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c917ba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x936a99b1310, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a7b1770,ffffffffffffffff,0,a0c7df9f,fffffd806c070478,fffffd8007ffd410) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806c070478,4,20c7df9f,0,ffff80002a7b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a7b1770,ffff80003c917ba0,ffff80003c917af0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c917ba0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c917ba0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x936a99b1310, count: -5