uvm_fault(0xfffffd806d01c020, 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 *163144 85368 0 0 0x4000000 0 syz-executor ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003854e030,ffff80003c9b9dd0,ffff80003c9b9d20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9b9dd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9b9dd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x34dc3cd110, 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(0xfffffd806d01c020, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003854e030,ffff80003c9b9dd0,ffff80003c9b9d20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9b9dd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9b9dd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x34dc3cd110, count: -5 ddb> show registers rdi 0xffff80003854e030 rsi 0xffffffffffffffff rbp 0xffff80003c9b9af0 rbx 0xfffffd8007bfb208 rdx 0 rcx 0x80000b1c __kernel_virt_to_phys+0xb1c rax 0xffff80003854e030 r8 0xfffffd8068cb9a80 r9 0xfffffd8007bfb208 r10 0xadaeeb3d78ce4293 r11 0xe26d493480df6129 r12 0xffff80003854e030 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000b1c __kernel_virt_to_phys+0xb1c rip 0xffffffff8124f588 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9b9a70 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=163144 pid=85368 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=0xffff80003854f258,0xffff80003854fa30 process=0xffff8000ffff5b20 user=0xffff80003c9b4000, vmspace=0xfffffd806d01c020 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 85368 62129 24201 0 2 0 syz-executor *85368 163144 24201 0 7 0x4000000 syz-executor 85368 369673 24201 0 3 0x4000080 fsleep syz-executor 85368 522409 24201 0 3 0x4000080 fsleep syz-executor 5025 496194 64897 0 2 0 syz-executor 5025 144989 64897 0 2 0x4000000 syz-executor 5025 65767 64897 0 3 0x4000080 fsleep syz-executor 15941 397469 10731 0 2 0 syz-executor 15941 88182 10731 0 3 0x4000080 sbwait syz-executor 15941 319238 10731 0 2 0x4000000 syz-executor 84930 380680 24574 0 2 0 syz-executor 84930 122325 24574 0 2 0x4000000 syz-executor 84930 262216 24574 0 3 0x4000080 fsleep syz-executor 67629 224809 97454 0 2 0x82000 syz-executor 67629 290160 97454 0 3 0x4002000 suspend syz-executor 67629 384292 97454 0 4 0x4082000 syz-executor 54410 238449 10750 0 2 0 syz-executor 54410 186509 10750 0 3 0x4000080 sbwait syz-executor 88219 98092 0 0 3 0x14200 acct acct 55557 414416 0 0 3 0x14200 bored sosplice 10731 474350 11950 0 3 0x82 nanoslp syz-executor 97454 430670 11950 0 3 0x82 nanoslp syz-executor 24574 387799 11950 0 3 0x82 nanoslp syz-executor 64897 145130 11950 0 3 0x82 nanoslp syz-executor 34045 202255 11950 0 2 0x2 syz-executor 24525 54800 11950 0 2 0x2 syz-executor 10750 448903 11950 0 3 0x82 nanoslp syz-executor 24201 457745 11950 0 3 0x82 nanoslp syz-executor 11950 501007 74578 0 3 0x82 kqread syz-executor 74578 375979 45306 0 3 0x10008a sigsusp ksh 45306 353922 69279 0 3 0x98 kqread sshd-session 69279 234588 35529 0 3 0x92 kqread sshd-session 74247 350844 1 0 3 0x100083 ttyin getty 35529 256166 1 0 3 0x88 kqread sshd 76920 117119 10270 73 3 0x1100090 kqread syslogd 10270 515191 1 0 3 0x100082 sbwait syslogd 30542 254550 1 0 3 0x100080 kqread resolvd 18893 486899 89852 77 3 0x100092 kqread dhcpleased 53149 247199 89852 77 3 0x100092 kqread dhcpleased 89852 418750 1 0 3 0x80 kqread dhcpleased 8233 114346 0 0 3 0x14200 bored smr 95740 190706 0 0 2 0x14200 zerothread 26254 142221 0 0 3 0x14200 aiodoned aiodoned 19018 256860 0 0 3 0x14200 syncer update 25654 155663 0 0 3 0x14200 cleaner cleaner 62500 176052 0 0 3 0x14200 reaper reaper 83040 379653 0 0 3 0x14200 pgdaemon pagedaemon 51761 121045 0 0 3 0x14200 bored viomb 14171 12736 0 0 3 0x40014200 acpi0 acpi0 84522 223871 0 0 3 0x14200 bored softnet7 36772 362669 0 0 3 0x14200 bored softnet6 39054 508810 0 0 3 0x14200 bored softnet5 42312 12952 0 0 3 0x14200 bored softnet4 54538 91839 0 0 3 0x14200 bored softnet3 56223 283117 0 0 3 0x14200 bored softnet2 53228 252186 0 0 3 0x14200 bored softnet1 17128 167612 0 0 3 0x14200 bored softnet0 56021 50611 0 0 3 0x14200 bored systqmp 97949 269564 0 0 3 0x14200 bored systq 1166 134595 0 0 2 0x40014200 softclock 30644 508932 0 0 3 0x40014200 idle0 1 184709 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 10180 11110K 11240K 166960K 11584 0 pcb 17 12K 12K 166960K 52 0 rtable 215 6K 6K 166960K 283 0 pf 30 12K 13K 166960K 42 0 ifaddr 42 7K 7K 166960K 49 0 ifgroup 50 2K 2K 166960K 67 0 sysctl 3 1K 9K 166960K 10 0 counters 32 17K 18K 166960K 102 0 ioctlops 0 0K 4K 166960K 109 0 iov 2 16K 16K 166960K 12 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1368 86K 86K 166960K 1580 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 17 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 106K 166960K 307 0 sigio 0 0K 0K 166960K 3 0 proc 60 59K 124K 166960K 489 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 21 0 in_multi 99 7K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 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 381 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 223 159K 173K 166960K 4581 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 37 74K 96K 166960K 1322 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 31 0 temp 74 8639K 8703K 166960K 16689 0 kqueue 13 20K 26K 166960K 54 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 48 0 45 1 0 1 1 0 8 0 rtentry 136 98 0 3 4 0 4 4 0 8 0 unpcb 144 210 0 189 4 0 4 4 0 8 3 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 116 0 111 7 0 7 7 0 8 6 arp 88 10 0 0 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 1 0 0 1 0 1 1 0 8 0 inpcb 328 326 0 250 8 1 7 7 0 8 0 nd6 104 17 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 67 0 67 1 0 1 1 0 8 1 pppxif 1384 65 0 65 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 444 0 6 28 0 28 28 0 8 0 art_table 40 445 0 6 5 0 5 5 0 8 0 art_node 32 97 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 13 0 3 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1934 0 434 95 0 95 95 0 8 0 ffsino 256 1934 0 434 95 0 95 95 0 8 0 nchpl 144 2361 0 681 63 0 63 63 0 8 0 uvmvnodes 80 2105 0 0 43 0 43 43 0 8 0 vnodes 216 2105 0 0 117 0 117 117 0 8 0 namei 1024 7604 0 7602 2 1 1 2 0 8 0 kstatmem 264 30 0 8 2 0 2 2 0 8 0 scxspl 216 7978 0 7978 8 7 1 8 1 8 1 plimitpl 152 117 0 100 1 0 1 1 0 8 0 sigapl 424 583 0 533 8 2 6 7 0 8 0 knotepl 120 10610 0 10563 10 0 10 10 0 8 8 kqueuepl 184 144 0 135 4 0 4 4 0 8 3 pipepl 304 114 0 87 3 0 3 3 0 8 0 fdescpl 448 561 0 533 6 2 4 5 0 8 0 filepl 120 2808 0 2524 11 0 11 11 0 8 2 lockfpl 104 62 0 60 1 0 1 1 0 8 0 lockfspl 48 31 0 28 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 440 0 428 1 0 1 1 0 8 0 zombiepl 144 704 0 704 2 1 1 1 0 8 1 processpl 1152 583 0 533 5 1 4 5 0 8 0 procpl 664 945 0 882 8 1 7 7 0 8 1 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 552 595 0 495 9 1 8 8 0 8 0 mcl64k 65536 7 0 6 1 0 1 1 0 8 0 mcl8k 8192 5 0 5 2 1 1 1 0 8 1 mcl4k 4096 2677 0 2627 13 5 8 13 0 8 0 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 404 0 400 2 1 1 1 0 8 0 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 5924 0 5726 13 0 13 13 0 8 0 bufpl 280 3353 0 117 232 0 232 232 0 8 0 anonpl 24 122928 0 119848 35 3 32 32 0 187 8 amapchunkpl 152 14230 0 13768 28 2 26 26 0 158 5 amappl16 200 2245 0 2221 7 4 3 5 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 106 0 96 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 1 0 1 0 8 0 amappl12 168 1171 0 1143 4 2 2 3 0 8 0 amappl11 160 49 0 37 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 26 0 25 1 0 1 1 0 8 0 amappl7 128 94 0 84 1 0 1 1 0 8 0 amappl6 120 168 0 165 1 0 1 1 0 8 0 amappl5 112 120 0 113 1 0 1 1 0 8 0 amappl4 104 270 0 254 1 0 1 1 0 8 0 amappl3 96 2362 0 2259 4 0 4 4 0 8 1 amappl2 88 624 0 567 2 0 2 2 0 8 0 amappl1 80 8451 0 7909 13 1 12 13 0 8 0 amappl 88 3918 0 3760 5 0 5 5 0 92 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 561 0 533 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 561 0 533 1 0 1 1 0 8 0 vmmpekpl 168 6104 0 6074 2 0 2 2 0 8 0 vmmpepl 168 41878 0 40099 92 8 84 84 0 357 1 vmsppl 368 560 0 533 5 2 3 4 0 8 0 rwobjpl 40 16352 0 13406 30 0 30 30 0 8 0 pdppl 4096 1128 0 1066 110 44 66 82 0 8 4 pvpl 32 273587 0 265694 90 3 87 87 0 265 12 pmappl 216 560 0 533 3 1 2 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 388 0 59 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003854e030,ffff80003c9b9dd0,ffff80003c9b9d20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9b9dd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9b9dd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x34dc3cd110, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003854e030,ffffffffffffffff,0,80000b1c,fffffd8068cb9a80,fffffd8007bfb208) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8068cb9a80,4,b1c,0,ffff80003854e030) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003854e030,ffff80003c9b9dd0,ffff80003c9b9d20) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9b9dd0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9b9dd0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x34dc3cd110, count: -5