uvm_fault(0xfffffd807b9dee70, 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 *222430 96134 0 0 0x4000000 0 syz-executor ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a78dca8,ffff8000338d5c90,ffff8000338d5be0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000338d5c90) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000338d5c90) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc270ac40, 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(0xfffffd807b9dee70, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a78dca8,ffff8000338d5c90,ffff8000338d5be0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000338d5c90) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000338d5c90) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc270ac40, count: -5 ddb> show registers rdi 0xffff8000314c4000 rsi 0x1a2d __ALIGN_SIZE+0xa2d rbp 0xffff8000338d59b0 rbx 0xfffffd8007ffd7b8 rdx 0xffff8000314c4000 rcx 0x1a2c __ALIGN_SIZE+0xa2c rax 0xffffffff81143f13 ktrops+0x43 r8 0xfffffd806ce6b528 r9 0xfffffd8007ffd7b8 r10 0x438d7837d641d739 r11 0x738ba3b294f50743 r12 0xffff80002a78dca8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xc0000928 rip 0xffffffff81143f28 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000338d5930 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=222430 pid=96134 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=0xffff80002a78d778,0xffffffff83a46a80 process=0xffff8000338e9f98 user=0xffff8000338d0000, vmspace=0xfffffd807b9dee70 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 96134 188204 33716 0 2 0 syz-executor *96134 222430 33716 0 7 0x4000000 syz-executor 52721 169748 12596 0 3 0x80 nanoslp syz-executor 52721 506584 12596 0 3 0x4000080 sbwait syz-executor 48768 311580 86617 0 3 0x3000 suspend syz-executor 48768 418006 86617 0 2 0x4081000 syz-executor 48768 273955 86617 0 3 0x4081000 inode syz-executor 12596 42869 23808 0 2 0xc82 syz-executor 85870 87201 23808 0 2 0x2 syz-executor 29945 505085 23808 0 2 0x2 syz-executor 86617 14165 23808 0 2 0xc82 syz-executor 33716 442138 23808 0 2 0xc82 syz-executor 8109 308978 23808 0 3 0x2 biowait syz-executor 70861 157908 23808 0 3 0x82 nanoslp syz-executor 2741 81914 23808 0 3 0x82 wait syz-executor 23808 107684 59238 0 2 0x2 syz-executor 59238 87343 37235 0 3 0x10008a sigsusp ksh 37235 473814 53607 0 3 0x98 kqread sshd-session 53607 152573 42425 0 3 0x92 kqread sshd-session 62661 383309 1 0 3 0x100083 ttyin getty 42425 183030 1 0 3 0x88 kqread sshd 31226 400962 87569 73 3 0x1100090 kqread syslogd 87569 239527 1 0 3 0x100082 sbwait syslogd 85384 392788 1 0 3 0x100080 kqread resolvd 30604 68670 19133 77 3 0x100092 kqread dhcpleased 85231 19929 19133 77 3 0x100092 kqread dhcpleased 19133 348013 1 0 3 0x80 kqread dhcpleased 44823 301653 0 0 3 0x14200 bored smr 60678 147491 0 0 2 0x14200 zerothread 18723 479873 0 0 3 0x14200 aiodoned aiodoned 79430 465607 0 0 3 0x14200 syncer update 6417 113778 0 0 3 0x14200 cleaner cleaner 39172 26765 0 0 3 0x14200 reaper reaper 70214 276044 0 0 3 0x14200 pgdaemon pagedaemon 73139 415555 0 0 3 0x14200 bored viomb 70683 485789 0 0 3 0x40014200 acpi0 acpi0 99099 251956 0 0 3 0x14200 bored softnet0 94237 61595 0 0 3 0x14200 bored systqmp 11818 220228 0 0 3 0x14200 bored systq 63308 114360 0 0 3 0x40014200 tmoslp softclock 11167 235317 0 0 3 0x40014200 idle0 1 355426 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 11033 12107K 12389K 166960K 12374 0 pcb 17 14K 16K 166960K 143 0 rtable 192 9K 9K 166960K 444 0 pf 31 13K 16K 166960K 65 0 ifaddr 36 6K 7K 166960K 51 0 ifgroup 41 1K 2K 166960K 61 0 sysctl 4 1K 9K 166960K 8 0 counters 32 17K 17K 166960K 37 0 ioctlops 0 0K 4K 166960K 140 0 iov 0 0K 24K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1296 81K 82K 166960K 1579 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 12 0K 0K 166960K 136 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 93K 166960K 343 0 sigio 0 0K 0K 166960K 1 0 proc 59 59K 91K 166960K 534 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 0 0K 0K 166960K 28 0 in_multi 80 5K 6K 166960K 114 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 386 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 212 150K 168K 166960K 4702 0 UVM aobj 9 2K 2K 166960K 10 0 pinsyscall 36 72K 96K 166960K 1434 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 10 0K 1K 166960K 31 0 temp 43 9067K 9131K 166960K 4951 0 kqueue 14 22K 26K 166960K 70 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 136 115 0 39 4 0 4 4 0 8 0 unpcb 144 137 0 121 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 103 0 99 4 0 4 4 0 8 3 arp 96 18 0 4 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 328 315 0 307 7 0 7 7 0 8 5 ip6q 72 1 0 1 1 0 1 1 0 8 1 ip6af 40 2 0 2 1 0 1 1 0 8 1 nd6 112 24 0 6 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 2 1 0 1 1 0 8 0 pfrktable 1344 12 0 4 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1360 6 0 1 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 484 0 135 29 0 29 29 0 8 3 art_table 40 486 0 135 5 0 5 5 0 8 0 art_node 32 114 0 46 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semapl 112 134 0 124 1 0 1 1 0 8 0 shmpl 112 7 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2000 0 545 92 0 92 92 0 8 0 ffsino 256 2000 0 545 92 0 92 92 0 8 0 nchpl 144 2512 0 820 64 0 64 64 0 8 0 vnodes 216 2173 0 0 121 0 121 121 0 8 0 namei 1024 8024 0 8022 1 0 1 1 0 8 0 pfiaddrpl 120 6 0 0 1 0 1 1 0 8 0 kstatmem 264 30 0 10 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 8448 0 8447 8 0 8 8 1 8 7 plimitpl 152 59 0 42 1 0 1 1 0 8 0 sigapl 424 635 0 595 6 0 6 6 0 8 1 knotepl 120 25365 0 25312 9 0 9 9 0 8 7 kqueuepl 184 81 0 71 1 0 1 1 0 8 0 pipepl 304 200 0 173 8 0 8 8 0 8 5 fdescpl 448 622 0 595 5 0 5 5 0 8 1 filepl 120 3271 0 3058 11 0 11 11 0 8 2 lockfpl 104 99 0 97 1 0 1 1 0 8 0 lockfspl 48 43 0 41 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 37 0 21 1 0 1 1 0 8 0 ucredpl 104 499 0 488 1 0 1 1 0 8 0 zombiepl 144 598 0 595 1 0 1 1 0 8 0 processpl 1152 635 0 595 4 0 4 4 0 8 0 procpl 664 939 0 895 6 0 6 6 0 8 1 sosppl 176 3 0 3 1 0 1 1 0 8 1 sockpl 552 513 0 486 8 0 8 8 0 8 5 mcl64k 65536 12 0 12 1 0 1 1 0 8 1 mcl8k 8192 5 0 5 1 0 1 1 0 8 1 mcl4k 4096 2800 0 2747 13 0 13 13 0 8 5 mcl2k 2048 388 0 386 3 0 3 3 0 8 2 mtagpl 96 8 0 5 1 0 1 1 0 8 0 mbufpl 256 6462 0 6343 13 0 13 13 0 8 2 bufpl 280 2759 0 104 190 0 190 190 0 8 0 anonpl 24 128711 0 124590 32 0 32 32 0 187 5 amapchunkpl 152 15311 0 14872 26 0 26 26 0 158 5 amappl16 200 2120 0 2026 6 0 6 6 0 8 0 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 450 0 449 1 0 1 1 0 8 0 amappl13 176 114 0 104 1 0 1 1 0 8 0 amappl12 168 855 0 829 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 0 1 1 0 8 1 amappl10 152 81 0 71 1 0 1 1 0 8 0 amappl9 144 274 0 273 1 0 1 1 0 8 0 amappl8 136 97 0 96 1 0 1 1 0 8 0 amappl7 128 143 0 132 1 0 1 1 0 8 0 amappl6 120 148 0 147 1 0 1 1 0 8 0 amappl5 112 159 0 151 1 0 1 1 0 8 0 amappl4 104 262 0 244 1 0 1 1 0 8 0 amappl3 96 2791 0 2689 4 0 4 4 0 8 0 amappl2 88 519 0 461 2 0 2 2 0 8 0 amappl1 80 10310 0 9766 16 0 16 16 0 8 3 amappl 88 3967 0 3816 5 0 5 5 0 92 0 uvmvnodes 80 109 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 9 0 1 1 0 1 1 0 8 0 uaddrrnd 24 622 0 595 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 622 0 595 1 0 1 1 0 8 0 vmmpekpl 168 6801 0 6767 2 0 2 2 0 8 0 vmmpepl 168 47463 0 45705 92 0 92 92 0 357 7 vmsppl 368 621 0 595 4 0 4 4 0 8 1 rwobjpl 40 15956 0 14923 12 0 12 12 0 8 1 pdppl 4096 1250 0 1190 96 30 66 80 0 8 6 pvpl 32 306016 0 296986 98 0 98 98 0 265 16 pmappl 216 621 0 595 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 364 0 30 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a78dca8,ffff8000338d5c90,ffff8000338d5be0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000338d5c90) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000338d5c90) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc270ac40, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002a78dca8,ffffffffffffffff,0,c0000928,fffffd806ce6b528,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806ce6b528,4,40000928,0,ffff80002a78dca8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002a78dca8,ffff8000338d5c90,ffff8000338d5be0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff8000338d5c90) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff8000338d5c90) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7bc270ac40, count: -5