uvm_fault(0xfffffd807144e460, 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 * 52246 72778 0 0 0x4000000 0 syz-executor ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f935cb8,ffff80003c9ab070,ffff80003c9aafc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9ab070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9ab070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d73dd86ce0, 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(0xfffffd807144e460, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f935cb8,ffff80003c9ab070,ffff80003c9aafc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9ab070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9ab070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d73dd86ce0, count: -5 ddb> show registers rdi 0xffff80002f130000 rsi 0x521 rbp 0xffff80003c9aad90 rbx 0xfffffd8007bfb7b8 rdx 0xffff80002f130000 rcx 0x520 rax 0xffffffff831b8cd3 ktrops+0x43 r8 0xfffffd8060ccd030 r9 0xfffffd8007bfb7b8 r10 0x9599e81387c305ec r11 0x9b89a6b88aa1b097 r12 0xffff80002f935cb8 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9b rip 0xffffffff831b8ce8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c9aad10 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=52246 pid=72778 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=0xffff80002f9354f0,0xffff80002f12e038 process=0xffff8000ffff44a0 user=0xffff80003c9a6000, vmspace=0xfffffd807144e460 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 72778 446742 88596 0 2 0 syz-executor *72778 52246 88596 0 7 0x4000000 syz-executor 96982 287656 92782 0 3 0x80 nanoslp syz-executor 96982 74018 92782 0 3 0x4000080 kqsel syz-executor 96982 207625 92782 0 3 0x4000080 fsleep syz-executor 28029 204210 44259 0 3 0x80 nanoslp syz-executor 28029 373958 44259 0 3 0x4000080 lockf syz-executor 28029 366645 44259 0 3 0x4000080 fsleep syz-executor 77545 421037 34820 0 3 0x80 nanoslp syz-executor 77545 64164 34820 0 3 0x4000080 ttyout syz-executor 77545 520673 34820 0 3 0x4000080 fsleep syz-executor 77545 394911 34820 0 3 0x4000080 fsleep syz-executor 59499 448604 0 0 3 0x14200 bored sosplice 38421 54079 89389 0 2 0x2 syz-executor 12261 474936 89389 0 2 0x2 syz-executor 92782 297235 89389 0 3 0x82 nanoslp syz-executor 44259 97423 89389 0 3 0x82 nanoslp syz-executor 85195 7069 89389 0 2 0x2 syz-executor 88596 371284 89389 0 3 0x82 nanoslp syz-executor 69571 459735 89389 0 2 0x2 syz-executor 34820 507930 89389 0 3 0x82 nanoslp syz-executor 89389 27074 1995 0 3 0x82 kqread syz-executor 1995 493040 35027 0 3 0x10008a sigsusp ksh 35027 187431 71846 0 3 0x98 kqread sshd-session 71846 134308 32435 0 3 0x92 kqread sshd-session 4431 396022 1 0 3 0x100083 ttyin getty 32435 367373 1 0 3 0x88 kqread sshd 32072 335290 74340 73 3 0x1100090 kqread syslogd 74340 300547 1 0 3 0x100082 sbwait syslogd 66694 98187 1 0 3 0x100080 kqread resolvd 33206 305670 58261 77 3 0x100092 kqread dhcpleased 75780 394453 58261 77 3 0x100092 kqread dhcpleased 58261 508029 1 0 3 0x80 kqread dhcpleased 69886 123962 0 0 3 0x14200 bored smr 36751 352683 0 0 2 0x14200 zerothread 52617 376793 0 0 3 0x14200 aiodoned aiodoned 55912 362198 0 0 3 0x14200 syncer update 14279 513259 0 0 3 0x14200 cleaner cleaner 16374 76073 0 0 3 0x14200 reaper reaper 97071 497576 0 0 3 0x14200 pgdaemon pagedaemon 79750 452177 0 0 3 0x14200 bored viomb 76276 397319 0 0 3 0x40014200 acpi0 acpi0 65271 316816 0 0 3 0x14200 bored softnet7 79455 442204 0 0 3 0x14200 bored softnet6 89827 231729 0 0 3 0x14200 bored softnet5 8969 58366 0 0 3 0x14200 bored softnet4 17277 184192 0 0 3 0x14200 bored softnet3 57007 509829 0 0 3 0x14200 bored softnet2 83836 305682 0 0 3 0x14200 bored softnet1 32802 37839 0 0 2 0x14200 softnet0 59071 6724 0 0 3 0x14200 bored systqmp 98913 468672 0 0 3 0x14200 bored systq 10368 434088 0 0 3 0x40014200 tmoslp softclock 38760 32598 0 0 3 0x40014200 idle0 1 430203 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 10183 11106K 11535K 166960K 11506 0 pcb 18 12K 12K 166960K 38 0 rtable 213 6K 7K 166960K 270 0 pf 31 13K 13K 166960K 38 0 ifaddr 42 7K 7K 166960K 47 0 ifgroup 50 2K 2K 166960K 56 0 sysctl 1 1K 9K 166960K 6 0 counters 32 17K 18K 166960K 37 0 ioctlops 0 0K 4K 166960K 41 0 iov 0 0K 20K 166960K 15 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1343 84K 85K 166960K 1474 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 14 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 14 49K 97K 166960K 279 0 sigio 0 0K 0K 166960K 4 0 proc 60 59K 91K 166960K 489 0 subproc 72 4K 4K 166960K 73 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 13 0 in_multi 99 7K 7K 166960K 105 0 ether_multi 1 0K 0K 166960K 3 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 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 393 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 204 155K 159K 166960K 4047 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 35 70K 94K 166960K 1301 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 9 0 NDP 11 0K 2K 166960K 30 0 temp 42 8631K 8696K 166960K 5136 0 kqueue 14 22K 28K 166960K 49 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 97 0 1 4 0 4 4 0 8 0 unpcb 144 166 0 151 3 0 3 3 0 8 2 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 98 0 94 7 0 7 7 0 8 6 arp 88 11 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 328 267 0 254 7 0 7 7 0 8 5 ip6q 72 2 0 1 1 0 1 1 0 8 0 ip6af 40 3 0 2 1 0 1 1 0 8 0 nd6 104 17 0 0 1 0 1 1 0 8 0 pkpcb 40 3 0 2 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 5 0 5 1 0 1 1 0 8 1 pfstscr 40 1 0 1 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 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 439 0 0 28 0 28 28 0 8 0 art_table 40 440 0 0 5 0 5 5 0 8 0 art_node 32 97 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 4 1 0 1 1 0 8 1 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 11 0 4 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1853 0 351 95 0 95 95 0 8 0 ffsino 256 1853 0 351 95 0 95 95 0 8 0 nchpl 144 2244 0 564 63 0 63 63 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 uvmvnodes 80 1996 0 0 41 0 41 41 0 8 0 vnodes 216 1996 0 0 111 0 111 111 0 8 0 namei 1024 6985 0 6983 2 0 2 2 0 8 1 kstatmem 264 28 0 6 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 8184 0 8184 8 0 8 8 1 8 8 plimitpl 152 49 0 32 1 0 1 1 0 8 0 sigapl 424 561 0 514 7 0 7 7 0 8 1 knotepl 120 8012 0 7960 10 0 10 10 0 8 7 kqueuepl 184 67 0 56 1 0 1 1 0 8 0 pipepl 304 144 0 116 5 0 5 5 0 8 2 fdescpl 448 540 0 514 5 0 5 5 0 8 1 filepl 120 2569 0 2340 10 0 10 10 0 8 0 lockfpl 104 118 0 113 2 0 2 2 0 8 1 lockfspl 48 28 0 24 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 104 244 0 233 1 0 1 1 0 8 0 zombiepl 144 514 0 514 1 0 1 1 0 8 1 processpl 1152 561 0 514 5 0 5 5 0 8 1 procpl 664 807 0 752 7 0 7 7 0 8 0 sosppl 168 4 0 4 1 0 1 1 0 8 1 sockpl 552 488 0 456 8 0 8 8 0 8 4 mcl64k 65536 6 0 6 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 1 0 1 1 0 8 1 mcl4k 4096 2623 0 2569 14 0 14 14 0 8 7 mcl2k 2048 420 0 414 2 0 2 2 0 8 1 mtagpl 96 6 0 4 1 0 1 1 0 8 0 mbufpl 256 5274 0 5125 11 0 11 11 0 8 0 bufpl 280 3352 0 120 231 0 231 231 0 8 0 anonpl 24 107353 0 104385 32 0 32 32 0 187 9 amapchunkpl 152 12342 0 11827 24 0 24 24 0 158 2 amappl16 200 1909 0 1884 5 0 5 5 0 8 2 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 102 0 92 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 0 1 1 0 8 1 amappl12 168 1147 0 1121 3 0 3 3 0 8 1 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 9 0 8 1 0 1 1 0 8 0 amappl9 144 243 0 243 1 0 1 1 0 8 1 amappl8 136 28 0 27 1 0 1 1 0 8 0 amappl7 128 95 0 85 1 0 1 1 0 8 0 amappl6 120 189 0 186 1 0 1 1 0 8 0 amappl5 112 117 0 110 1 0 1 1 0 8 0 amappl4 104 260 0 245 1 0 1 1 0 8 0 amappl3 96 2135 0 2048 3 0 3 3 0 8 0 amappl2 88 598 0 544 2 0 2 2 0 8 0 amappl1 80 8430 0 7890 13 0 13 13 0 8 1 amappl 88 3395 0 3256 5 0 5 5 0 92 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 128 255 0 255 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 540 0 514 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 540 0 514 1 0 1 1 0 8 0 vmmpekpl 168 5766 0 5726 3 0 3 3 0 8 0 vmmpepl 168 40137 0 38464 85 0 85 85 0 357 0 vmsppl 368 539 0 514 4 0 4 4 0 8 1 rwobjpl 40 15307 0 12495 29 0 29 29 0 8 0 pdppl 4096 1086 0 1028 98 32 66 82 0 8 8 pvpl 32 257455 0 249392 89 0 89 89 0 265 11 pmappl 216 539 0 514 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 371 0 32 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f935cb8,ffff80003c9ab070,ffff80003c9aafc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9ab070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9ab070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d73dd86ce0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80002f935cb8,ffffffffffffffff,0,a0c7df9b,fffffd8060ccd030,fffffd8007bfb7b8) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd8060ccd030,4,20c7df9b,0,ffff80002f935cb8) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80002f935cb8,ffff80003c9ab070,ffff80003c9aafc0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9ab070) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9ab070) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5d73dd86ce0, count: -5