uvm_fault(0xfffffd806bbab8b0, 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 *455338 72642 0 0 0x4000000 0 syz-executor ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c944558,ffff80003c979160,ffff80003c9790b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c979160) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c979160) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd41e763730, 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(0xfffffd806bbab8b0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c944558,ffff80003c979160,ffff80003c9790b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c979160) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c979160) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd41e763730, count: -5 ddb> show registers rdi 0xffff80003c944558 rsi 0xffffffffffffffff rbp 0xffff80003c978e80 rbx 0xfffffd8007bfb5b0 rdx 0 rcx 0x80000538 __kernel_virt_to_phys+0x538 rax 0xffff80003c944558 r8 0xfffffd806779f700 r9 0xfffffd8007bfb5b0 r10 0x663fc165eb766ef8 r11 0x4e5a7ee07f35f016 r12 0xffff80003c944558 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000538 __kernel_virt_to_phys+0x538 rip 0xffffffff82b87958 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c978e00 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=455338 pid=72642 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=65, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a7aba08,0xffff80003c944d30 process=0xffff8000ffff8d98 user=0xffff80003c974000, vmspace=0xfffffd806bbab8b0 estcpu=15, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 72642 185586 90496 0 2 0 syz-executor *72642 455338 90496 0 7 0x4000000 syz-executor 72642 176153 90496 0 3 0x4000080 fsleep syz-executor 36428 410278 32595 0 2 0 syz-executor 36428 388439 32595 0 3 0x4000080 fsleep syz-executor 43908 476694 60348 0 2 0 syz-executor 43908 119686 60348 0 3 0x4000080 fsleep syz-executor 25350 346083 94048 0 2 0 syz-executor 25350 52424 94048 0 2 0x4000000 syz-executor 71964 373321 53370 0 3 0x80 nanoslp syz-executor 71964 192753 53370 0 3 0x4000080 ttyin syz-executor 71964 277635 53370 0 3 0x4000080 fsleep syz-executor 94035 116853 93647 0 3 0x80 nanoslp syz-executor 94035 79985 93647 0 3 0x4000080 netcon syz-executor 94035 255801 93647 0 3 0x4000080 fsleep syz-executor 8945 71183 0 0 3 0x14200 bored sosplice 53370 454157 42669 0 3 0x82 nanoslp syz-executor 32595 363960 42669 0 3 0x82 nanoslp syz-executor 89650 482509 42669 0 2 0x2 syz-executor 65079 518948 42669 0 3 0x82 nanoslp syz-executor 90496 84551 42669 0 3 0x82 nanoslp syz-executor 93647 97047 42669 0 3 0x82 nanoslp syz-executor 60348 32002 42669 0 3 0x82 nanoslp syz-executor 94048 404508 42669 0 3 0x82 nanoslp syz-executor 42669 80113 11065 0 3 0x82 kqread syz-executor 11065 191524 70559 0 3 0x10008a sigsusp ksh 70559 85508 76012 0 3 0x98 kqread sshd-session 76012 425313 28951 0 3 0x92 kqread sshd-session 95001 60175 1 0 3 0x100083 ttyin getty 28951 141244 1 0 3 0x88 kqread sshd 86305 207567 54305 73 3 0x1100090 kqread syslogd 54305 149233 1 0 3 0x100082 sbwait syslogd 62113 124865 1 0 3 0x100080 kqread resolvd 94046 359247 35645 77 3 0x100092 kqread dhcpleased 71245 412900 35645 77 3 0x100092 kqread dhcpleased 35645 56407 1 0 3 0x80 kqread dhcpleased 9276 92230 0 0 3 0x14200 bored smr 79591 247483 0 0 2 0x14200 zerothread 1635 302489 0 0 3 0x14200 aiodoned aiodoned 60637 406615 0 0 3 0x14200 syncer update 57393 216319 0 0 3 0x14200 cleaner cleaner 73356 493622 0 0 3 0x14200 reaper reaper 39267 191804 0 0 3 0x14200 pgdaemon pagedaemon 37366 151601 0 0 3 0x14200 bored viomb 49204 492860 0 0 3 0x40014200 acpi0 acpi0 10715 97895 0 0 3 0x14200 bored softnet0 24675 256277 0 0 3 0x14200 bored systqmp 18828 81786 0 0 3 0x14200 bored systq 67945 311094 0 0 3 0x40014200 tmoslp softclock 33519 38369 0 0 3 0x40014200 idle0 1 250671 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 10169 11042K 11188K 166960K 11320 0 pcb 17 12K 12K 166960K 41 0 rtable 209 5K 5K 166960K 268 0 pf 31 13K 16K 166960K 38 0 ifaddr 42 7K 7K 166960K 46 0 ifgroup 50 2K 2K 166960K 54 0 sysctl 2 1K 9K 166960K 7 0 counters 32 17K 18K 166960K 34 0 ioctlops 0 0K 4K 166960K 43 0 iov 0 0K 24K 166960K 7 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1337 84K 84K 166960K 1405 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 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 221 0 sigio 0 0K 0K 166960K 2 0 proc 60 59K 124K 166960K 485 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 2 0K 0K 166960K 12 0 in_multi 100 7K 7K 166960K 101 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 2K 166960K 355 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 229 153K 159K 166960K 3448 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 38 76K 96K 166960K 1253 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 29 0 temp 38 8638K 8710K 166960K 5454 0 kqueue 16 22K 24K 166960K 38 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 39 0 36 1 0 1 1 0 8 0 rtentry 136 99 0 3 4 0 4 4 0 8 0 unpcb 144 64 0 47 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 31 0 25 1 0 1 1 0 8 0 arp 96 11 0 0 1 0 1 1 0 8 0 ipq 40 2 0 1 1 0 1 1 0 8 0 ipqe 40 3 0 2 1 0 1 1 0 8 0 inpcb 328 150 0 141 2 0 2 2 0 8 1 ip6q 72 2 0 0 1 0 1 1 0 8 0 ip6af 40 2 0 0 1 0 1 1 0 8 0 nd6 112 17 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 2 0 2 1 0 1 1 0 8 1 pfstkey 128 2 0 2 1 0 1 1 0 8 1 pfstate 384 1 0 1 1 0 1 1 0 8 1 rttmr 136 2 0 2 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 470 0 31 30 0 30 30 0 8 2 art_table 40 471 0 31 5 0 5 5 0 8 0 art_node 32 99 0 13 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1688 0 189 95 0 95 95 0 8 0 ffsino 256 1688 0 189 95 0 95 95 0 8 0 nchpl 144 1989 0 308 63 0 63 63 0 8 0 vnodes 216 1798 0 0 100 0 100 100 0 8 0 namei 1024 5975 0 5975 2 0 2 2 0 8 2 kstatmem 264 26 0 4 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 6862 0 6862 8 0 8 8 1 8 8 plimitpl 152 43 0 26 1 0 1 1 0 8 0 sigapl 424 499 0 456 6 0 6 6 0 8 1 knotepl 120 5923 0 5873 2 0 2 2 0 8 0 kqueuepl 184 70 0 60 3 0 3 3 0 8 2 pipepl 304 103 0 76 3 0 3 3 0 8 0 fdescpl 448 485 0 456 5 0 5 5 0 8 1 filepl 120 1789 0 1569 8 0 8 8 0 8 1 lockfpl 104 49 0 47 1 0 1 1 0 8 0 lockfspl 48 21 0 19 1 0 1 1 0 8 0 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 29 0 13 1 0 1 1 0 8 0 ucredpl 104 157 0 146 1 0 1 1 0 8 0 zombiepl 144 457 0 456 1 0 1 1 0 8 0 processpl 1152 499 0 456 4 0 4 4 0 8 0 procpl 664 628 0 576 6 0 6 6 0 8 0 sockpl 552 257 0 228 3 0 3 3 0 8 0 mcl64k 65536 9 0 9 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2554 0 2502 15 0 15 15 0 8 7 mcl2k 2048 266 0 260 2 0 2 2 0 8 1 mtagpl 96 4 0 4 1 0 1 1 0 8 1 mbufpl 256 4532 0 4376 11 0 11 11 0 8 0 bufpl 280 2954 0 118 203 0 203 203 0 8 0 anonpl 24 108318 0 102661 45 0 45 45 0 187 10 amapchunkpl 152 10617 0 10006 29 0 29 29 0 158 4 amappl16 200 1852 0 1801 11 0 11 11 0 8 8 amappl15 192 7 0 7 1 0 1 1 0 8 1 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 0 1 1 0 8 1 amappl12 168 1101 0 1072 3 0 3 3 0 8 1 amappl11 160 43 0 33 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 0 1 1 0 8 1 amappl9 144 255 0 255 1 0 1 1 0 8 1 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 97 0 87 1 0 1 1 0 8 0 amappl6 120 166 0 163 1 0 1 1 0 8 0 amappl5 112 116 0 109 1 0 1 1 0 8 0 amappl4 104 262 0 246 1 0 1 1 0 8 0 amappl3 96 1624 0 1533 3 0 3 3 0 8 0 amappl2 88 709 0 640 2 0 2 2 0 8 0 amappl1 80 8186 0 7635 13 0 13 13 0 8 1 amappl 88 2801 0 2636 4 0 4 4 0 92 0 uvmvnodes 80 1798 0 0 37 0 37 37 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 485 0 456 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 485 0 456 1 0 1 1 0 8 0 vmmpekpl 168 5284 0 5247 2 0 2 2 0 8 0 vmmpepl 168 36528 0 34670 90 0 90 90 0 357 6 vmsppl 368 484 0 456 4 0 4 4 0 8 1 rwobjpl 40 14515 0 11847 28 0 28 28 0 8 0 pdppl 4096 976 0 912 96 30 66 82 0 8 2 pvpl 32 241592 0 229454 118 0 118 118 0 265 17 pmappl 216 484 0 456 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 366 0 30 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c944558,ffff80003c979160,ffff80003c9790b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c979160) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c979160) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd41e763730, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c944558,ffffffffffffffff,0,80000538,fffffd806779f700,fffffd8007bfb5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806779f700,4,538,0,ffff80003c944558) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c944558,ffff80003c979160,ffff80003c9790b0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c979160) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c979160) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xcd41e763730, count: -5