uvm_fault(0xfffffd8075f5d8b0, 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 *315163 92534 0 0x1000 0x4080000 0 syz-executor ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94b4e0,ffff80003c9753c0,ffff80003c975310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9753c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9753c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f7e3052c70, 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(0xfffffd8075f5d8b0, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94b4e0,ffff80003c9753c0,ffff80003c975310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9753c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9753c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f7e3052c70, count: -5 ddb> show registers rdi 0xffff80003c94b4e0 rsi 0xffffffffffffffff rbp 0xffff80003c9750e0 rbx 0xfffffd8007bfb4e0 rdx 0 rcx 0xa0c7df9f rax 0xffff80003c94b4e0 r8 0xfffffd805c1ed7a8 r9 0xfffffd8007bfb4e0 r10 0x888c86413fb756f4 r11 0xb2fa5e23a738f1b8 r12 0xffff80003c94b4e0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0xa0c7df9f rip 0xffffffff817fb8f8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80003c975060 ss 0 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=315163 pid=92534 tcnt=2 stat=onproc flags process=1000 proc=4080000 runpri=17, usrpri=56, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c94a7e8 scnt=1 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c94a7e8,0xffff80002a7cc7f0 process=0xffff8000ffffad18 user=0xffff80003c970000, vmspace=0xfffffd8075f5d8b0 estcpu=6, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 78939 284587 67742 0 2 0 syz-executor 50274 118699 17895 0 2 0 syz-executor 50274 514229 17895 0 2 0x4000000 syz-executor 50274 111020 17895 0 3 0x4000080 ttybg syz-executor 50274 424610 17895 0 3 0x4000080 fsleep syz-executor 50274 299762 17895 0 3 0x4000080 fsleep syz-executor 48453 476957 71080 0 3 0x80 nanoslp syz-executor 48453 323937 71080 0 2 0x4000000 syz-executor 48453 287419 71080 0 3 0x4000000 inode syz-executor 48453 508164 71080 0 3 0x4000080 fsleep syz-executor 40597 357329 0 0 3 0x14200 acct acct 40208 283807 63618 0 2 0xc80 syz-executor 40208 518696 63618 0 3 0x4000080 semwait syz-executor 40208 61839 63618 0 3 0x4000080 fsleep syz-executor 92534 94650 50782 0 3 0x3000 suspend syz-executor *92534 315163 50782 0 7 0x4081000 syz-executor 93961 201721 4274 0 2 0x2 syz-executor 50782 131443 4274 0 2 0xc82 syz-executor 13019 121010 4274 0 2 0x2 syz-executor 71080 191636 4274 0 2 0xc82 syz-executor 63618 97923 4274 0 2 0xc82 syz-executor 34060 225738 4274 0 2 0x2 syz-executor 67742 336981 4274 0 3 0x82 nanoslp syz-executor 17895 159878 4274 0 2 0xc82 syz-executor 4274 57040 60822 0 3 0x82 kqread syz-executor 60822 143865 96989 0 3 0x10008a sigsusp ksh 96989 80143 91251 0 3 0x98 kqread sshd-session 91251 39758 54761 0 3 0x92 kqread sshd-session 1000 434988 1 0 3 0x100083 ttyin getty 54761 521282 1 0 3 0x88 kqread sshd 90935 324262 25559 73 3 0x1100090 kqread syslogd 25559 196941 1 0 3 0x100082 sbwait syslogd 70011 264026 1 0 3 0x100080 kqread resolvd 34727 183806 20870 77 3 0x100092 kqread dhcpleased 99992 174851 20870 77 3 0x100092 kqread dhcpleased 20870 178855 1 0 3 0x80 kqread dhcpleased 72898 500859 0 0 3 0x14200 bored smr 64871 135380 0 0 2 0x14200 zerothread 16095 455502 0 0 3 0x14200 aiodoned aiodoned 3884 417905 0 0 3 0x14200 syncer update 49929 513310 0 0 3 0x14200 cleaner cleaner 10754 29407 0 0 3 0x14200 reaper reaper 21571 194595 0 0 3 0x14200 pgdaemon pagedaemon 26201 262174 0 0 3 0x14200 bored viomb 66114 164316 0 0 3 0x40014200 acpi0 acpi0 21007 182772 0 0 3 0x14200 bored softnet0 60946 262865 0 0 3 0x14200 bored systqmp 4332 117294 0 0 3 0x14200 bored systq 18059 195012 0 0 2 0x40014200 softclock 67118 7910 0 0 3 0x40014200 idle0 1 514825 0 0 3 0x82 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 10171 11039K 11278K 166960K 11660 0 pcb 17 12K 12K 166960K 51 0 rtable 218 7K 7K 166960K 283 0 pf 31 13K 14K 166960K 39 0 ifaddr 42 7K 7K 166960K 47 0 ifgroup 50 2K 2K 166960K 62 0 sysctl 1 1K 9K 166960K 5 0 counters 32 17K 18K 166960K 36 0 ioctlops 0 0K 2K 166960K 74 0 iov 0 0K 12K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1467 92K 93K 166960K 1544 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 8 0K 1K 166960K 106 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 97K 166960K 229 0 sigio 0 0K 0K 166960K 2 0 proc 60 59K 124K 166960K 490 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 0 0K 0K 166960K 162 0 in_multi 99 7K 7K 166960K 100 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 2 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 424 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 207 150K 165K 166960K 3496 0 UVM aobj 3 2K 2K 166960K 4 0 pinsyscall 36 72K 96K 166960K 1251 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 13 0 NDP 11 0K 2K 166960K 30 0 temp 38 8630K 8694K 166960K 6841 0 kqueue 14 22K 24K 166960K 37 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 42 0 39 1 0 1 1 0 8 0 rtentry 136 98 0 2 4 0 4 4 0 8 0 unpcb 144 75 0 60 1 0 1 1 0 8 0 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 736 42 0 37 2 0 2 2 0 8 1 arp 96 10 0 0 1 0 1 1 0 8 0 inpcb 328 173 0 165 4 0 4 4 0 8 2 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 18 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 3 0 3 1 0 1 1 0 8 1 pfstscr 40 33 0 33 1 0 1 1 0 8 1 pfstkey 128 33 0 33 1 0 1 1 0 8 1 pfstate 384 33 0 33 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 439 0 2 28 0 28 28 0 8 0 art_table 40 441 0 2 5 0 5 5 0 8 0 art_node 32 98 0 12 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 37 0 32 1 0 1 1 0 8 0 shmpl 112 1 0 1 1 0 1 1 0 8 1 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1709 0 202 95 0 95 95 0 8 0 ffsino 256 1709 0 202 95 0 95 95 0 8 0 nchpl 144 2028 0 348 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 0 1 1 0 8 1 uvmvnodes 80 1956 0 0 40 0 40 40 0 8 0 vnodes 216 1956 0 0 109 0 109 109 0 8 0 namei 1024 6388 0 6384 2 0 2 2 0 8 1 kstatmem 264 28 0 6 2 0 2 2 0 8 0 scxspl 216 7991 0 7991 8 0 8 8 1 8 8 plimitpl 152 46 0 28 1 0 1 1 0 8 0 sigapl 424 506 0 465 6 0 6 6 0 8 1 knotepl 120 6269 0 6221 2 0 2 2 0 8 0 kqueuepl 184 81 0 69 3 0 3 3 0 8 2 pipepl 304 109 0 81 3 0 3 3 0 8 0 fdescpl 448 490 0 463 5 0 5 5 0 8 1 filepl 120 2033 0 1811 12 0 12 12 0 8 5 lockfpl 104 39 0 36 1 0 1 1 0 8 0 lockfspl 48 20 0 17 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 104 183 0 172 1 0 1 1 0 8 0 zombiepl 144 466 0 465 1 0 1 1 0 8 0 processpl 1152 506 0 465 4 0 4 4 0 8 0 procpl 664 648 0 597 5 0 5 5 0 8 0 sockpl 552 293 0 267 6 0 6 6 0 8 3 mcl64k 65536 7 0 7 1 0 1 1 0 8 1 mcl9k 9216 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 4 0 4 1 0 1 1 0 8 1 mcl4k 4096 2551 0 2500 13 0 13 13 0 8 6 mcl2k 2048 284 0 281 2 0 2 2 0 8 1 mtagpl 96 6 0 5 1 0 1 1 0 8 0 mbufpl 256 4866 0 4719 11 0 11 11 0 8 0 bufpl 280 3998 0 117 278 0 278 278 0 8 0 anonpl 24 108606 0 101553 44 0 44 44 0 187 0 amapchunkpl 152 10913 0 10494 27 0 27 27 0 158 9 amappl16 200 2136 0 1874 14 0 14 14 0 8 0 amappl15 192 3 0 3 1 0 1 1 0 8 1 amappl14 184 105 0 95 1 0 1 1 0 8 0 amappl13 176 4 0 4 1 0 1 1 0 8 1 amappl12 168 1097 0 1071 3 0 3 3 0 8 1 amappl11 160 54 0 44 1 0 1 1 0 8 0 amappl10 152 10 0 10 1 0 1 1 0 8 1 amappl9 144 260 0 260 1 0 1 1 0 8 1 amappl8 136 40 0 39 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 165 0 162 1 0 1 1 0 8 0 amappl5 112 117 0 109 1 0 1 1 0 8 0 amappl4 104 262 0 246 1 0 1 1 0 8 0 amappl3 96 1664 0 1588 3 0 3 3 0 8 0 amappl2 88 714 0 649 2 0 2 2 0 8 0 amappl1 80 8316 0 7782 13 0 13 13 0 8 1 amappl 88 2848 0 2707 4 0 4 4 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 128 253 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 3 0 1 1 0 1 1 0 8 0 uaddrrnd 24 490 0 463 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 490 0 463 1 0 1 1 0 8 0 vmmpekpl 168 5277 0 5243 2 0 2 2 0 8 0 vmmpepl 168 37635 0 35682 88 0 88 88 0 357 0 vmsppl 368 489 0 463 4 0 4 4 0 8 1 rwobjpl 40 15069 0 12060 31 0 31 31 0 8 0 pdppl 4096 986 0 926 98 32 66 82 0 8 6 pvpl 32 242989 0 231211 106 0 106 106 0 265 5 pmappl 216 489 0 463 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 366 0 32 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94b4e0,ffff80003c9753c0,ffff80003c975310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9753c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9753c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f7e3052c70, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:727 [inline] ktrops(ffff80003c94b4e0,ffffffffffffffff,0,a0c7df9f,fffffd805c1ed7a8,fffffd8007bfb4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:570 doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:595 [inline] doktrace(fffffd805c1ed7a8,4,20c7df9f,0,ffff80003c94b4e0) at doktrace+0x6bd sys/kern/kern_ktrace.c:517 sys_ktrace(ffff80003c94b4e0,ffff80003c9753c0,ffff80003c975310) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:558 syscall(ffff80003c9753c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003c9753c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5f7e3052c70, count: -5