uvm_fault(0xfffffd8074fc9a20, 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 *284679 12126 0 0 0x4000000 0 syz-executor ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff800031cfca80,ffff800034509530,ffff800034509480) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800034509530) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034509530) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e074fad660, 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(0xfffffd8074fc9a20, 0xf, 0, 1) -> e ddb> trace ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff800031cfca80,ffff800034509530,ffff800034509480) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800034509530) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034509530) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e074fad660, count: -5 ddb> show registers rdi 0xffff800035d0a000 rsi 0x3dea __ALIGN_SIZE+0x2dea rbp 0xffff800034509250 rbx 0xfffffd8007bfd5b0 rdx 0xffff800035d0a000 rcx 0x3de9 __ALIGN_SIZE+0x2de9 rax 0xffffffff825b9b03 ktrops+0x43 r8 0xfffffd806a21e7e0 r9 0xfffffd8007bfd5b0 r10 0xb161f67d6860c470 r11 0xc7f11681dbf9e2e5 r12 0xffff800031cfca80 r13 0x1 r14 0xffffffffffffffff r15 0xaf82c397 rip 0xffffffff825b9b18 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000345091d0 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=284679 pid=12126 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=0xffff800031cfc2b8,0xffffffff83938a60 process=0xffff800031cf8018 user=0xffff800034504000, vmspace=0xfffffd8074fc9a20 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 12126 292800 87786 0 2 0 syz-executor *12126 284679 87786 0 7 0x4000000 syz-executor 94386 229122 73492 0 2 0 syz-executor 94386 201804 73492 0 3 0x4000080 fsleep syz-executor 4686 105051 74713 -1 2 0x10 syz-executor 4686 80044 74713 -1 3 0x4000090 fsleep syz-executor 16962 30197 84006 0 3 0x80 nanoslp syz-executor 16962 489191 84006 0 3 0x4000080 fsleep syz-executor 16962 256738 84006 0 3 0x4000080 fsleep syz-executor 16962 31690 84006 0 3 0x4000080 lockf syz-executor 62590 325231 20826 0 3 0x3000 suspend syz-executor 62590 398370 20826 0 2 0x4081000 syz-executor 62590 365654 20826 0 3 0x4081000 inode syz-executor 62590 69837 20826 0 3 0x4081000 inode syz-executor 74713 231143 13550 0 2 0xc82 syz-executor 82586 438689 8612 0 3 0x3000 suspend syz-executor 82586 37574 8612 0 2 0x4081000 syz-executor 82586 82804 8612 0 3 0x4081000 inode syz-executor 84006 432409 13550 0 2 0xc82 syz-executor 20826 66583 13550 0 3 0x82 nanoslp syz-executor 87786 150152 13550 0 2 0xc82 syz-executor 8612 229487 13550 0 2 0xc82 syz-executor 70251 520905 13550 0 2 0x2 syz-executor 73492 94320 13550 0 2 0xc82 syz-executor 40328 177136 13550 0 2 0x2 syz-executor 13550 368709 31778 0 3 0x82 kqread syz-executor 31778 72140 7205 0 3 0x10008a sigsusp ksh 7205 173772 4767 0 3 0x98 kqread sshd-session 4767 32955 74375 0 3 0x92 kqread sshd-session 33900 444631 1 0 3 0x100083 ttyin getty 74375 266473 1 0 3 0x88 kqread sshd 11085 144451 71269 73 3 0x1100090 kqread syslogd 71269 381227 1 0 3 0x100082 sbwait syslogd 36331 331640 1 0 3 0x100080 kqread resolvd 7530 522178 13555 77 3 0x100092 kqread dhcpleased 22911 83607 13555 77 3 0x100092 kqread dhcpleased 13555 13108 1 0 3 0x80 kqread dhcpleased 59120 382019 0 0 3 0x14200 bored smr 76275 136124 0 0 2 0x14200 zerothread 26853 54636 0 0 3 0x14200 aiodoned aiodoned 64281 10938 0 0 3 0x14200 syncer update 22271 469096 0 0 3 0x14200 cleaner cleaner 53015 341591 0 0 3 0x14200 reaper reaper 25095 229055 0 0 3 0x14200 pgdaemon pagedaemon 91599 459281 0 0 3 0x14200 bored viomb 30908 308061 0 0 3 0x40014200 acpi0 acpi0 58207 8004 0 0 3 0x14200 bored softnet0 93887 329825 0 0 3 0x14200 bored systqmp 38656 184363 0 0 3 0x14200 bored systq 38516 446195 0 0 3 0x40014200 tmoslp softclock 10098 69442 0 0 3 0x40014200 idle0 1 313028 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11049 12299K 12465K 166960K 12741 0 pcb 17 16K 18K 166960K 146 0 rtable 219 8K 8K 166960K 444 0 pf 28 12K 14K 166960K 57 0 ifaddr 38 6K 8K 166960K 64 0 ifgroup 43 1K 2K 166960K 83 0 sysctl 2 1K 9K 166960K 6 0 counters 32 17K 18K 166960K 49 0 ioctlops 0 0K 4K 166960K 124 0 iov 0 0K 16K 166960K 14 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1466 92K 93K 166960K 1820 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 10 0K 0K 166960K 12 0 dirhash 12 2K 3K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 433 0 sigio 0 0K 0K 166960K 4 0 proc 60 59K 108K 166960K 522 0 subproc 72 4K 4K 166960K 81 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 88 6K 7K 166960K 132 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 412 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 231 159K 173K 166960K 5466 0 UVM aobj 41 4K 4K 166960K 43 0 pinsyscall 37 74K 94K 166960K 1516 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 20 0 NDP 12 0K 2K 166960K 39 0 temp 39 8667K 8923K 166960K 11009 0 kqueue 14 22K 28K 166960K 67 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 58 0 55 1 0 1 1 0 8 0 rtentry 136 133 0 41 4 0 4 4 0 8 0 unpcb 144 510 0 495 7 0 7 7 0 8 6 syncache 336 4 0 4 2 1 1 1 0 8 1 tcpcb 736 105 0 99 4 0 4 4 0 8 3 arp 96 21 0 4 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 328 378 0 369 10 6 4 7 0 8 3 ip6q 72 2 0 1 2 1 1 1 0 8 0 ip6af 40 4 0 3 2 1 1 1 0 8 0 nd6 112 29 0 7 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 11 0 11 2 1 1 1 0 8 1 pppxif 1384 2 0 2 2 1 1 1 0 8 1 pfrule 1360 2 0 2 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 576 0 173 29 3 26 29 0 8 0 art_table 40 578 0 173 5 0 5 5 0 8 0 art_node 32 132 0 50 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 39 0 2 2 0 2 2 0 8 0 dirhash 1024 30 0 13 3 0 3 3 0 8 0 dino2pl 256 2117 0 612 95 0 95 95 0 8 0 ffsino 256 2117 0 612 95 0 95 95 0 8 0 nchpl 144 2690 0 993 64 0 64 64 0 8 0 rtmask 32 4 0 4 2 1 1 1 0 8 1 vnodes 216 2509 0 0 140 0 140 140 0 8 0 namei 1024 9220 0 9216 4 2 2 2 0 8 1 vcpupl 3904 1 0 0 1 0 1 1 0 8 0 vmpool 808 1 0 0 1 0 1 1 0 8 0 kstatmem 264 42 0 22 2 0 2 2 0 8 0 scxspl 216 9992 0 9992 2 1 1 2 1 8 1 plimitpl 152 137 0 117 1 0 1 1 0 8 0 sigapl 424 697 0 656 7 1 6 6 0 8 0 knotepl 120 18421 0 18373 16 7 9 10 0 8 7 kqueuepl 184 91 0 79 1 0 1 1 0 8 0 pipepl 304 136 0 109 3 0 3 3 0 8 0 fdescpl 448 682 0 654 5 1 4 5 0 8 0 filepl 120 4070 0 3847 18 3 15 15 0 8 7 lockfpl 104 114 0 109 1 0 1 1 0 8 0 lockfspl 48 50 0 47 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 19 1 0 1 1 0 8 0 ucredpl 104 511 0 498 1 0 1 1 0 8 0 zombiepl 144 658 0 656 2 1 1 1 0 8 0 processpl 1152 697 0 656 4 0 4 4 0 8 0 procpl 664 1085 0 1033 5 0 5 5 0 8 0 sosppl 176 4 0 4 2 1 1 1 0 8 1 sockpl 552 960 0 933 22 11 11 17 0 8 8 mcl64k 65536 17 0 17 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 2823 0 2771 16 8 8 15 0 8 0 mcl2k 2048 694 0 687 4 2 2 3 0 8 1 mtagpl 96 12 0 5 1 0 1 1 0 8 0 mbufpl 256 7408 0 7286 15 3 12 15 0 8 0 bufpl 280 3737 0 119 259 0 259 259 0 8 0 anonpl 24 116151 0 109343 53 11 42 42 0 187 0 amapchunkpl 152 16831 0 16345 34 8 26 27 0 158 5 amappl16 200 1870 0 1626 15 2 13 13 0 8 0 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 11 0 11 1 1 0 1 0 8 0 amappl13 176 417 0 416 1 0 1 1 0 8 0 amappl12 168 1039 0 1002 2 0 2 2 0 8 0 amappl11 160 2 0 2 1 1 0 1 0 8 0 amappl10 152 48 0 38 1 0 1 1 0 8 0 amappl9 144 241 0 241 1 1 0 1 0 8 0 amappl8 136 35 0 34 1 0 1 1 0 8 0 amappl7 128 81 0 80 1 0 1 1 0 8 0 amappl6 120 271 0 259 1 0 1 1 0 8 0 amappl5 112 70 0 62 1 0 1 1 0 8 0 amappl4 104 386 0 360 1 0 1 1 0 8 0 amappl3 96 2722 0 2633 3 0 3 3 0 8 0 amappl2 88 789 0 720 2 0 2 2 0 8 0 amappl1 80 10166 0 9626 14 1 13 13 0 8 0 amappl 88 4693 0 4530 6 1 5 5 0 92 1 uvmvnodes 80 110 0 0 3 0 3 3 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 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 42 0 2 1 0 1 1 0 8 0 uaddrrnd 24 682 0 654 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 682 0 654 1 0 1 1 0 8 0 vmmpekpl 168 7063 0 7030 2 0 2 2 0 8 0 vmmpepl 168 49820 0 47866 91 1 90 90 0 357 0 vmsppl 368 681 0 654 4 1 3 4 0 8 0 rwobjpl 40 15997 0 14780 14 1 13 13 0 8 0 pdppl 4096 1373 0 1309 108 36 72 83 0 8 8 pvpl 32 306865 0 291898 138 14 124 124 0 265 0 pmappl 216 682 0 654 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 398 0 63 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff800031cfca80,ffff800034509530,ffff800034509480) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800034509530) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034509530) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e074fad660, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff800031cfca80,ffffffffffffffff,0,af82c397,fffffd806a21e7e0,fffffd8007bfd5b0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd806a21e7e0,4,af82c397,ffffffff,ffff800031cfca80) at doktrace+0x560 sys/kern/kern_ktrace.c:502 sys_ktrace(ffff800031cfca80,ffff800034509530,ffff800034509480) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff800034509530) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800034509530) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e074fad660, count: -5