uvm_fault(0xfffffd806ca96a20, 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 *169450 1076 0 0 0x4000000 0 syz-executor ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002d4b1770,ffff800035cc36d0,ffff800035cc3620) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc36d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc36d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x48b7389e900, 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(0xfffffd806ca96a20, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002d4b1770,ffff800035cc36d0,ffff800035cc3620) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc36d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc36d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x48b7389e900, count: -5 ddb> show registers rdi 0xffff80003a8d6000 rsi 0x7a96 __ALIGN_SIZE+0x6a96 rbp 0xffff800035cc33f0 rbx 0xfffffd8007ffd7b8 rdx 0xffff80003a8d6000 rcx 0x7a95 __ALIGN_SIZE+0x6a95 rax 0xffffffff82c95d53 ktrops+0x43 r8 0xfffffd807c220d88 r9 0xfffffd8007ffd7b8 r10 0x50308a4fcb0db840 r11 0x4c755a37b9cb389b r12 0xffff80002d4b1770 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7fd9f rip 0xffffffff82c95d68 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800035cc3370 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=169450 pid=1076 tcnt=5 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=68, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c8efa10,0xffff80002d4b0028 process=0xffff8000ffffa898 user=0xffff800035cbe000, vmspace=0xfffffd806ca96a20 estcpu=18, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 99414 413903 1 0 3 0x3000 suspend syz-executor 99414 69972 1 0 3 0x4081000 biowait syz-executor 1076 13041 1 0 3 0x80 nanoslp syz-executor 1076 354899 1 0 3 0x4000080 fsleep syz-executor * 1076 169450 1 0 7 0x4000000 syz-executor 1076 435747 1 0 3 0x4000080 fsleep syz-executor 1076 234975 1 0 3 0x4000080 fsleep syz-executor 7901 8833 1 0 2 0x102803 getty 19771 2273 1 0 2 0x2 syz-executor 42672 462312 1 0 2 0x10002808 sshd 54784 321646 1 0 2 0x10102802 syslogd 16035 304725 1 0 2 0x102800 resolvd 1665 474472 0 0 2 0x14200 smr 84093 141378 0 0 2 0x14200 zerothread 46699 228554 0 0 3 0x14200 aiodoned aiodoned 85580 260498 0 0 3 0x14200 syncer update 11031 234952 0 0 3 0x14200 cleaner cleaner 51715 207440 0 0 3 0x14200 reaper reaper 95326 289411 0 0 3 0x14200 pgdaemon pagedaemon 62845 393835 0 0 3 0x14200 bored viomb 63357 459546 0 0 3 0x40014200 acpi0 acpi0 72621 153988 0 0 3 0x14200 bored softnet0 88614 244975 0 0 3 0x14200 smrbar systqmp 56454 233730 0 0 3 0x14200 bored systq 88334 489098 0 0 3 0x40014200 tmoslp softclock 10861 330002 0 0 3 0x40014200 idle0 1 385016 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 11063 12163K 12438K 166960K 12754 0 pcb 17 12K 12K 166960K 82 0 rtable 209 15K 16K 166960K 479 0 pf 34 13K 74K 166960K 64 0 ifaddr 35 5K 7K 166960K 59 0 ifgroup 50 2K 2K 166960K 73 0 sysctl 3 1K 9K 166960K 9 0 counters 33 17K 18K 166960K 44 0 ioctlops 0 0K 4K 166960K 85 0 iov 0 0K 16K 166960K 13 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1385 87K 88K 166960K 1691 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 11 0K 1K 166960K 15 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 7 28K 69K 166960K 411 0 sigio 0 0K 0K 166960K 6 0 proc 54 43K 75K 166960K 555 0 subproc 63 3K 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 39 0 in_multi 74 5K 7K 166960K 120 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 15 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 241 1076K 1076K 166960K 241 0 exec 0 0K 1K 166960K 405 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 134 92K 159K 166960K 5267 0 UVM aobj 10 2K 2K 166960K 10 0 pinsyscall 19 38K 82K 166960K 1544 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 11 0 NDP 11 0K 2K 166960K 37 0 temp 48 9132K 9172K 166960K 18681 0 kqueue 2 4K 28K 166960K 78 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 57 1 0 1 1 0 8 0 rtentry 136 136 0 56 4 0 4 4 0 8 0 unpcb 144 128 0 127 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 109 0 105 1 0 1 1 0 8 0 arp 96 22 0 6 1 0 1 1 0 8 0 inpcb 328 299 0 295 2 0 2 2 0 8 0 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 112 31 0 11 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 9 0 2 1 0 1 1 0 8 0 ppxss 1072 8 0 8 1 0 1 1 0 8 1 pppxif 1416 1 0 1 1 0 1 1 0 8 1 pfstscr 40 8 0 8 1 0 1 1 0 8 1 pfrktable 1344 4 0 2 1 0 1 1 0 8 0 pfstlim 224 1 0 0 1 0 1 1 0 8 0 pfanchor 1288 2 0 1 1 0 1 1 0 8 0 pftag 88 1 0 1 1 0 1 1 0 8 1 pfstkey 128 8 0 8 1 0 1 1 0 8 1 pfstate 384 5 0 5 1 0 1 1 0 8 1 pfrule 1360 3 0 2 1 0 1 1 0 8 0 rttmr 136 3 0 3 1 0 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 656 0 250 33 0 33 33 0 8 6 art_table 40 659 0 250 6 0 6 6 0 8 1 art_node 32 135 0 54 1 0 1 1 0 8 0 sysvmsgpl 40 35 0 33 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 10 0 1 1 0 1 1 0 8 0 shmpl 112 7 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2044 0 578 92 0 92 92 0 8 0 ffsino 256 2044 0 578 92 0 92 92 0 8 0 nchpl 144 2615 0 914 64 0 64 64 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 vnodes 216 2365 0 0 132 0 132 132 0 8 0 namei 1024 8172 0 8167 2 0 2 2 0 8 1 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 39 0 16 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 10342 0 10280 8 0 8 8 1 8 2 plimitpl 152 138 0 125 1 0 1 1 0 8 0 sigapl 424 706 0 673 5 0 5 5 0 8 0 knotepl 120 13217 0 13213 10 1 9 10 0 8 8 kqueuepl 184 134 0 132 3 0 3 3 0 8 2 pipepl 304 133 0 120 3 0 3 3 0 8 0 fdescpl 448 693 0 677 4 0 4 4 0 8 0 filepl 120 3283 0 3177 10 0 10 10 0 8 3 lockfpl 104 106 0 104 1 0 1 1 0 8 0 lockfspl 48 49 0 47 1 0 1 1 0 8 0 sessionpl 144 103 0 96 1 0 1 1 0 8 0 pgrppl 48 178 0 164 1 0 1 1 0 8 0 ucredpl 104 481 0 470 1 0 1 1 0 8 0 zombiepl 144 684 0 673 1 0 1 1 0 8 0 processpl 1152 706 0 673 4 0 4 4 0 8 0 procpl 664 1098 0 1060 5 0 5 5 0 8 0 sosppl 176 6 0 6 1 0 1 1 0 8 1 sockpl 552 498 0 491 4 0 4 4 0 8 1 mcl64k 65536 23 0 23 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2885 0 2830 15 0 15 15 0 8 7 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 455 0 455 5 0 5 5 0 8 5 mtagpl 96 13 0 9 1 0 1 1 0 8 0 mbufpl 256 7229 0 7131 18 0 18 18 0 8 7 bufpl 280 3987 0 103 278 0 278 278 0 8 0 anonpl 24 112487 0 109820 59 0 59 59 0 186 26 amapchunkpl 152 16043 0 15721 34 0 34 34 0 158 15 amappl16 200 1800 0 1751 18 6 12 15 0 8 8 amappl15 192 5 0 5 1 0 1 1 0 8 1 amappl14 184 423 0 423 1 0 1 1 0 8 1 amappl13 176 117 0 113 1 0 1 1 0 8 0 amappl12 168 937 0 922 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 0 1 1 0 8 1 amappl10 152 60 0 58 1 0 1 1 0 8 0 amappl9 144 286 0 286 1 0 1 1 0 8 1 amappl8 136 99 0 98 1 0 1 1 0 8 0 amappl7 128 149 0 148 1 0 1 1 0 8 0 amappl6 120 165 0 165 1 0 1 1 0 8 1 amappl5 112 105 0 104 1 0 1 1 0 8 0 amappl4 104 278 0 269 1 0 1 1 0 8 0 amappl3 96 3110 0 3056 4 0 4 4 0 8 1 amappl2 88 527 0 522 2 0 2 2 0 8 1 amappl1 80 11377 0 11302 12 0 12 12 0 8 3 amappl 88 4476 0 4382 5 0 5 5 0 92 1 uvmvnodes 80 104 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 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 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 0 1 0 1 1 0 8 0 uaddrrnd 24 693 0 677 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 693 0 677 1 0 1 1 0 8 0 vmmpekpl 168 7268 0 7240 3 0 3 3 0 8 0 vmmpepl 168 52267 0 51579 91 0 91 91 0 357 30 vmsppl 368 692 0 677 3 0 3 3 0 8 0 rwobjpl 40 16788 0 16374 13 0 13 13 0 8 0 pdppl 4096 1392 0 1354 92 28 64 68 0 8 26 pvpl 32 317453 0 311007 150 0 150 150 0 265 73 pmappl 216 692 0 677 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 371 0 28 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002d4b1770,ffff800035cc36d0,ffff800035cc3620) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc36d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc36d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x48b7389e900, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002d4b1770,ffffffffffffffff,0,a0c7fd9f,fffffd807c220d88,fffffd8007ffd7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffffd807c220d88,4,20c7fd9f,0,ffff80002d4b1770) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002d4b1770,ffff800035cc36d0,ffff800035cc3620) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff800035cc36d0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff800035cc36d0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x48b7389e900, count: -5 ddb>