uvm_fault(0xfffff88077f33b88, 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 * 7308 26592 0 0 0x4000000 0 syz-executor ktrops(ffff80002a7662a8,ffffffffffffffff,0,a0c7df9f,fffff8806f7e9440,fffff88007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7662a8,ffffffffffffffff,0,a0c7df9f,fffff8806f7e9440,fffff88007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8806f7e9440,4,20c7df9f,0,ffff80002a7662a8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8806f7e9440,4,20c7df9f,0,ffff80002a7662a8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7662a8,ffff80002f0b1970,ffff80002f0b18c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002f0b1970) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0b1970) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5cf2a18bde0, 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(0xfffff88077f33b88, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002a7662a8,ffffffffffffffff,0,a0c7df9f,fffff8806f7e9440,fffff88007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7662a8,ffffffffffffffff,0,a0c7df9f,fffff8806f7e9440,fffff88007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8806f7e9440,4,20c7df9f,0,ffff80002a7662a8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8806f7e9440,4,20c7df9f,0,ffff80002a7662a8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7662a8,ffff80002f0b1970,ffff80002f0b18c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002f0b1970) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0b1970) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5cf2a18bde0, count: -5 ddb> show registers rdi 0xffff80002f0b2000 rsi 0x4368 __ALIGN_SIZE+0x3368 rbp 0xffff80002f0b1690 rbx 0xfffff88007ffd6e8 rdx 0xffff80002f0b2000 rcx 0x4367 __ALIGN_SIZE+0x3367 rax 0xffffffff82bb4cd3 ktrops+0x43 r8 0xfffff8806f7e9440 r9 0xfffff88007ffd6e8 r10 0xfa979751e4462578 r11 0xe8f8c49a07b54af1 r12 0xffff80002a7662a8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff82bb4ce8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002f0b1610 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=7308 pid=26592 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=76, usrpri=76, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a766010,0xffff80003a4d02c8 process=0xffff800045ffa418 user=0xffff80002f0ac000, vmspace=0xfffff88077f33b88 estcpu=26, cpticks=9, pctcpu=0.7, user=0, sys=7, intr=2 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 4756 187883 52809 60929 2 0x10 syz-executor 4756 354949 52809 60929 3 0x4000090 sbwait syz-executor 41768 434922 42322 0 2 0 syz-executor 41768 33885 42322 0 3 0x4000080 ttyin syz-executor 18890 277883 44687 0 2 0x10 syz-executor 18890 194495 44687 0 2 0x4000010 syz-executor 26592 357440 41924 0 2 0 syz-executor *26592 7308 41924 0 7 0x4000000 syz-executor 41649 16290 63749 0 2 0x2 syz-executor 53265 212512 33093 0 3 0x3000 suspend syz-executor 53265 86985 33093 0 2 0x4081000 syz-executor 53265 181775 33093 0 3 0x4081000 inode syz-executor 53265 260336 33093 0 3 0x4081000 inode syz-executor 41091 49673 1 0 3 0x80 nanoslp init 52809 493483 63749 0 3 0x82 nanoslp syz-executor 44687 329799 63749 0 3 0x82 nanoslp syz-executor 33093 246903 63749 0 3 0x82 nanoslp syz-executor 42322 468870 63749 0 3 0x82 nanoslp syz-executor 45628 21639 63749 0 2 0x2 syz-executor 41924 45313 63749 0 2 0xc82 syz-executor 9717 49416 63749 0 2 0x2 syz-executor 63749 195578 1 0 3 0x82 kqread syz-executor 67478 470851 0 0 3 0x14200 bored smr 77302 412201 0 0 2 0x14200 zerothread 56185 431422 0 0 3 0x14200 aiodoned aiodoned 35897 279388 0 0 3 0x14200 syncer update 24848 484423 0 0 3 0x14200 cleaner cleaner 47094 506880 0 0 3 0x14200 reaper reaper 13984 292379 0 0 3 0x14200 pgdaemon pagedaemon 83402 4986 0 0 3 0x14200 bored viomb 14014 256989 0 0 3 0x40014200 acpi0 acpi0 37000 448897 0 0 3 0x14200 bored softnet0 31719 423057 0 0 3 0x14200 bored systqmp 18190 490691 0 0 3 0x14200 bored systq 46722 65524 0 0 3 0x40014200 tmoslp softclock 85142 507810 0 0 3 0x40014200 idle0 1 298777 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 11031 12093K 12419K 166960K 12805 0 pcb 17 13K 13K 166960K 124 0 rtable 189 7K 9K 166960K 637 0 pf 31 13K 73K 166960K 421 0 ifaddr 30 5K 7K 166960K 72 0 ifgroup 39 1K 2K 166960K 114 0 sysctl 4 1K 9K 166960K 12 0 counters 31 17K 18K 166960K 120 0 ioctlops 0 0K 6K 166960K 626 0 iov 0 0K 16K 166960K 84 0 mount 1 1K 1K 166960K 1 0 log 5 16K 16K 166960K 9 0 vnodes 1380 87K 87K 166960K 2342 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 9 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 101 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 53K 85K 166960K 743 0 sigio 0 0K 0K 166960K 13 0 proc 11 17K 83K 166960K 588 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 64 0 in_multi 62 4K 7K 166960K 137 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 29 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 133 599K 599K 166960K 133 0 exec 0 0K 1K 166960K 484 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 113 77K 169K 166960K 8348 0 UVM aobj 47 2K 4K 166960K 51 0 pinsyscall 16 32K 88K 166960K 1884 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 40 0 NDP 9 0K 2K 166960K 48 0 temp 76 9120K 9188K 166960K 33665 0 kqueue 2 4K 30K 166960K 199 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 120 244 0 244 3 1 2 2 0 8 2 rtentry 136 145 0 68 4 0 4 4 0 8 0 unpcb 144 449 0 443 3 0 3 3 0 8 2 syncache 336 9 0 9 1 1 0 1 0 8 0 tcpcb 736 409 0 407 13 6 7 7 0 8 6 arp 96 25 0 10 1 0 1 1 0 8 0 ipq 40 4 0 0 1 0 1 1 0 8 0 ipqe 40 6 0 2 1 0 1 1 0 8 0 inpcb 328 848 0 845 13 6 7 7 0 8 6 nd6 112 29 0 15 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 77 0 77 2 1 1 1 0 8 1 pppxif 1416 3 0 3 2 1 1 1 0 8 1 pfstscr 40 22 0 12 1 0 1 1 0 8 0 pfrktable 1344 81 0 81 2 1 1 1 0 8 1 pfsrclim 320 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 28 0 27 1 0 1 1 0 8 0 pftag 88 56 0 53 1 0 1 1 0 8 0 pfqueue 320 2 0 1 1 0 1 1 0 8 0 pfstitem 24 13 0 4 1 0 1 1 0 8 0 pfstkey 128 23 0 12 1 0 1 1 0 8 0 pfstate 384 12 0 7 1 0 1 1 0 8 0 pfrule 1360 78 0 75 1 0 1 1 0 8 0 rttmr 136 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 562 0 238 29 3 26 29 0 8 4 art_table 40 564 0 238 5 0 5 5 0 8 0 art_node 32 143 0 72 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 1 0 1 0 8 0 semapl 72 98 0 88 1 0 1 1 0 8 0 shmpl 112 48 0 4 2 0 2 2 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2913 0 1465 92 0 92 92 0 8 0 ffsino 256 2913 0 1465 92 0 92 92 0 8 0 nchpl 144 3943 0 2249 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 vnodes 216 3156 0 0 176 0 176 176 0 8 0 namei 1024 13150 0 13146 3 2 1 2 0 8 0 pfiaddrpl 120 27 0 27 2 1 1 1 0 8 1 kstatmem 264 59 0 40 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 18270 0 18270 9 7 2 8 1 8 2 plimitpl 152 196 0 184 1 0 1 1 0 8 0 sigapl 424 1041 0 1011 6 1 5 6 0 8 0 knotepl 120 31396 0 31378 23 13 10 16 0 8 8 kqueuepl 184 266 0 263 2 1 1 2 0 8 0 pipepl 304 158 0 131 3 0 3 3 0 8 0 fdescpl 448 1028 0 1011 4 0 4 4 0 8 0 filepl 120 6706 0 6537 15 2 13 13 0 8 6 lockfpl 104 322 0 321 2 1 1 2 0 8 0 lockfspl 48 128 0 127 1 0 1 1 0 8 0 sessionpl 144 82 0 80 1 0 1 1 0 8 0 pgrppl 48 98 0 88 1 0 1 1 0 8 0 ucredpl 104 1483 0 1478 1 0 1 1 0 8 0 zombiepl 144 1012 0 1011 1 0 1 1 0 8 0 processpl 1152 1041 0 1011 4 0 4 4 0 8 0 procpl 664 1949 0 1912 5 0 5 5 0 8 1 sosppl 176 1 0 1 1 0 1 1 0 8 1 sockpl 552 1572 0 1563 15 7 8 8 0 8 7 mcl64k 65536 52 0 52 2 1 1 1 0 8 1 mcl16k 16384 2 0 2 1 1 0 1 0 8 0 mcl9k128 9344 2 0 2 1 1 0 1 0 8 0 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 3349 0 3297 16 6 10 14 0 8 2 mcl2k 2048 678 0 675 2 1 1 2 0 8 0 mtagpl 96 8 0 7 1 0 1 1 0 8 0 mbufpl 256 10906 0 10739 76 55 21 76 0 8 8 bufpl 272 6748 0 532 415 0 415 415 0 8 0 anonpl 24 152282 0 147232 51 16 35 44 0 187 3 amapchunkpl 152 27287 0 26988 40 9 31 31 0 158 15 amappl16 200 2726 0 2477 30 16 14 15 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 423 0 423 2 1 1 1 0 8 1 amappl13 176 120 0 120 2 1 1 1 0 8 1 amappl12 168 1271 0 1256 2 0 2 2 0 8 0 amappl11 160 70 0 69 1 0 1 1 0 8 0 amappl10 152 55 0 55 1 1 0 1 0 8 0 amappl9 144 319 0 319 1 1 0 1 0 8 0 amappl8 136 101 0 100 1 0 1 1 0 8 0 amappl7 128 160 0 157 1 0 1 1 0 8 0 amappl6 120 160 0 158 1 0 1 1 0 8 0 amappl5 112 93 0 92 2 1 1 1 0 8 0 amappl4 104 271 0 268 1 0 1 1 0 8 0 amappl3 96 5419 0 5354 4 0 4 4 0 8 0 amappl2 88 544 0 536 2 0 2 2 0 8 0 amappl1 80 12623 0 12541 13 6 7 13 0 8 1 amappl 88 7535 0 7432 5 1 4 5 0 92 0 uvmvnodes 80 114 0 0 3 0 3 3 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 8 0 8 2 1 1 1 0 8 1 dma128 128 254 0 254 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 50 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1028 0 1011 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1028 0 1011 1 0 1 1 0 8 0 vmmpekpl 168 9539 0 9496 3 0 3 3 0 8 0 vmmpepl 168 71352 0 70422 88 38 50 87 0 357 2 vmsppl 368 1027 0 1011 4 1 3 4 0 8 0 rwobjpl 40 21244 0 20595 13 2 11 13 0 8 0 pdppl 4096 2062 0 2022 94 46 48 76 0 8 8 pvpl 32 447928 0 439612 129 46 83 111 0 265 7 pmappl 216 1027 0 1011 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 858 0 126 21 0 21 21 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002a7662a8,ffffffffffffffff,0,a0c7df9f,fffff8806f7e9440,fffff88007ffd6e8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002a7662a8,ffffffffffffffff,0,a0c7df9f,fffff8806f7e9440,fffff88007ffd6e8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff8806f7e9440,4,20c7df9f,0,ffff80002a7662a8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff8806f7e9440,4,20c7df9f,0,ffff80002a7662a8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002a7662a8,ffff80002f0b1970,ffff80002f0b18c0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002f0b1970) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002f0b1970) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5cf2a18bde0, count: -5 ddb> machine ddbcpu 1 No such command ddb>