uvm_fault(0xffffffff839b66c0, 0xffff800001686000, 0, 2) -> e kernel: page fault trap, code=2 Stopped at sysctl_sysvipc+0x529: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND *136825 62622 0 0 0x4000000 0 syz-executor sysctl_sysvipc(ffff80002a7abdb8,1,200000000100,ffff80002a7abde8) at sysctl_sysvipc+0x529 sys/kern/kern_sysctl.c:2779 kern_sysctl(ffff80002a7abdb4,2,200000000100,ffff80002a7abde8,0,27,73ec1e08ab45bec0) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736 sys_sysctl(ffff80002f4b6a88,ffff80002a7abf10,ffff80002a7abe60) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a7abf10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7abf10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc9fb9a1ea30, 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(0xffffffff839b66c0, 0xffff800001686000, 0, 2) -> e ddb> show kasan No such command ddb> trace sysctl_sysvipc(ffff80002a7abdb8,1,200000000100,ffff80002a7abde8) at sysctl_sysvipc+0x529 sys/kern/kern_sysctl.c:2779 kern_sysctl(ffff80002a7abdb4,2,200000000100,ffff80002a7abde8,0,27,73ec1e08ab45bec0) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736 sys_sysctl(ffff80002f4b6a88,ffff80002a7abf10,ffff80002a7abe60) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a7abf10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7abf10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc9fb9a1ea30, count: -5 ddb> show registers rdi 0xffff800001686000 rsi 0xfffffd007bdc1480 rbp 0xffff80002a7abba0 rbx 0 rdx 0xffff8000320be000 rcx 0x8 rax 0xffffffff812c58d5 sysctl_sysvipc+0x515 r8 0xffff80002a7abde8 r9 0 r10 0x7a1011e82e599187 r11 0xfe09ad7bf25d734a r12 0xfffffffffffff694 r13 0xfffffd007bdc1460 r14 0x17 r15 0xffff800001685fe0 rip 0xffffffff812c58e9 sysctl_sysvipc+0x529 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a7abb10 ss 0x10 sysctl_sysvipc+0x529: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (syz-executor) tid=136825 pid=62622 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f4b6fb8,0xffffffff83a3fd60 process=0xffff800045ff9b18 user=0xffff80002a7a6000, vmspace=0xfffffd007f22e8a0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 62622 117913 20663 0 2 0 0 syz-executor *62622 136825 20663 0 7 0 0x4000000 syz-executor 73142 378942 47922 0 3 0 0x80 nanoslp syz-executor 73142 79388 47922 0 3 0 0x4000080 rest syz-executor 73142 117079 47922 0 3 0 0x4000080 fsleep syz-executor 50403 392342 48043 -1 2 0x10 0xc80 syz-executor 50403 311301 48043 -1 3 0x10 0x4000080 fifow syz-executor 50403 39178 48043 -1 3 0x10 0x4000080 fsleep syz-executor 29584 52705 83035 0 3 0 0x80 nanoslp syz-executor 29584 105679 83035 0 3 0 0x4000080 pppxread syz-executor 29584 14446 83035 0 3 0 0x4000080 fsleep syz-executor 97371 457322 0 0 3 0x14000 0x280 nfsidl nfsio 32419 511261 0 0 3 0x14000 0x280 nfsidl nfsio 94248 434357 0 0 3 0x14000 0x280 nfsidl nfsio 58938 357666 0 0 3 0x14000 0x280 nfsidl nfsio 79938 152119 0 0 3 0x14000 0x280 nfsidl nfsio 68880 94967 0 0 3 0x14000 0x280 nfsidl nfsio 51898 226398 0 0 3 0x14000 0x280 nfsidl nfsio 84387 44433 0 0 3 0x14000 0x280 nfsidl nfsio 73478 354059 0 0 3 0x14000 0x280 nfsidl nfsio 29542 93810 0 0 3 0x14000 0x280 nfsidl nfsio 46855 464127 0 0 3 0x14000 0x280 nfsidl nfsio 67605 8814 0 0 3 0x14000 0x280 nfsidl nfsio 12620 448295 0 0 3 0x14000 0x280 nfsidl nfsio 93084 268761 0 0 3 0x14000 0x280 nfsidl nfsio 63079 312147 0 0 3 0x14000 0x280 nfsidl nfsio 90610 427182 0 0 3 0x14000 0x280 nfsidl nfsio 50963 180233 0 0 3 0x14000 0x280 nfsidl nfsio 99659 348695 0 0 3 0x14000 0x280 nfsidl nfsio 81647 516330 0 0 3 0x14000 0x280 nfsidl nfsio 89969 212083 0 0 3 0x14000 0x280 nfsidl nfsio 9404 238305 1 0 3 0x100003 0x80 ttyin getty 58651 14838 60258 0 2 0x2 0 syz-executor 77172 222545 60258 0 2 0x2 0 syz-executor 31751 217362 60258 0 3 0x2 0x80 nanoslp syz-executor 20663 147003 60258 0 2 0x2 0xc80 syz-executor 47922 338940 60258 0 2 0x2 0xc80 syz-executor 9442 49274 60258 0 2 0x2 0 syz-executor 83035 164887 60258 0 3 0x2 0x80 nanoslp syz-executor 48043 72523 60258 0 3 0x2 0x80 nanoslp syz-executor 60258 406817 1 0 3 0x2 0x80 kqread syz-executor 88836 178203 0 0 3 0x14000 0x200 bored smr 19328 18414 0 0 2 0x14000 0x200 zerothread 49722 95979 0 0 3 0x14000 0x200 aiodoned aiodoned 44258 486376 0 0 3 0x14000 0x200 syncer update 62479 28313 0 0 3 0x14000 0x200 cleaner cleaner 32583 233848 0 0 3 0x14000 0x200 reaper reaper 3776 297255 0 0 3 0x14000 0x200 pgdaemon pagedaemon 60597 33106 0 0 3 0x14000 0x200 bored viomb 96868 220771 0 0 3 0x14000 0x40000200 acpi0 acpi0 17106 511661 0 0 3 0x14000 0x200 bored softnet0 88400 185127 0 0 3 0x14000 0x200 bored systqmp 89951 187039 0 0 3 0x14000 0x200 bored systq 5290 448031 0 0 3 0x14000 0x40000200 tmoslp softclock 86754 405323 0 0 3 0x14000 0x40000200 idle0 1 492215 0 0 3 0x80002 0x80 wait init 0 0 -1 0 3 0x10010000 0x200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11034 12182K 12381K 166960K 12712 0 pcb 18 18K 23K 166960K 207 0 rtable 257 9K 10K 166960K 440 0 pf 34 13K 21K 166960K 120 0 ifaddr 42 7K 8K 166960K 55 0 ifgroup 50 2K 2K 166960K 67 0 sysctl 2 1K 9K 166960K 10 0 counters 33 17K 18K 166960K 42 0 ioctlops 0 0K 4K 166960K 237 0 iov 0 0K 16K 166960K 79 0 mount 1 1K 1K 166960K 1 0 log 3 2K 2K 166960K 7 0 vnodes 1425 90K 90K 166960K 1808 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 90 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 14 53K 89K 166960K 495 0 sigio 0 0K 0K 166960K 68 0 proc 20 25K 91K 166960K 543 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 28 0 in_multi 98 7K 7K 166960K 102 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 12 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 460 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 120 86K 165K 166960K 5978 0 UVM aobj 76 3K 3K 166960K 79 0 pinsyscall 17 34K 93K 166960K 1603 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 17 0 NDP 11 0K 2K 166960K 33 0 temp 44 9112K 9172K 166960K 10104 0 kqueue 2 4K 31K 166960K 94 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 65 0 64 2 1 1 1 0 8 0 rtentry 136 125 0 15 4 0 4 4 0 8 0 unpcb 144 539 0 537 14 6 8 8 0 8 7 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpcb 736 222 0 221 7 6 1 7 0 8 0 arp 96 22 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 328 836 0 831 20 13 7 13 0 8 6 ip6q 72 1 0 0 1 0 1 1 0 8 0 nd6 112 25 0 0 1 0 1 1 0 8 0 pkpcb 40 67 0 67 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 7 0 7 1 1 0 1 0 8 0 pppxif 1416 2 0 2 1 1 0 1 0 8 0 pfstscr 40 75 0 70 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 2 1 0 1 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfanchor 1288 6 0 0 1 0 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfqueue 320 1 0 1 1 1 0 1 0 8 0 pfstitem 24 5 0 0 1 0 1 1 0 8 0 pfstkey 128 74 0 69 1 0 1 1 0 8 0 pfstate 384 38 0 35 1 0 1 1 0 8 0 pfrule 1360 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 468 0 13 29 0 29 29 0 8 0 art_table 40 469 0 13 5 0 5 5 0 8 0 art_node 32 122 0 23 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 0 1 1 0 8 1 semapl 72 20 0 10 1 0 1 1 0 8 0 shmpl 112 76 0 3 3 0 3 3 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2263 0 801 92 0 92 92 0 8 0 ffsino 256 2264 0 801 92 0 92 92 0 8 0 nchpl 144 2967 0 1271 64 0 64 64 0 8 0 vnodes 216 2593 0 0 145 0 145 145 0 8 0 namei 1024 9472 0 9471 3 2 1 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 kstatmem 264 35 0 12 2 0 2 2 0 8 0 scsiplug 72 3 0 3 2 1 1 1 0 8 1 scxspl 216 9599 0 9599 3 2 1 3 1 8 1 plimitpl 152 63 0 50 1 0 1 1 0 8 0 sigapl 424 815 0 765 7 1 6 6 0 8 0 knotepl 120 18866 0 18611 30 14 16 16 0 8 8 kqueuepl 184 177 0 175 4 0 4 4 0 8 3 pipepl 304 208 0 181 8 5 3 8 0 8 0 fdescpl 448 779 0 762 5 1 4 5 0 8 0 filepl 120 4916 0 4749 22 8 14 15 0 8 7 lockfpl 104 138 0 137 1 0 1 1 0 8 0 lockfspl 48 61 0 60 1 0 1 1 0 8 0 sessionpl 144 41 0 38 1 0 1 1 0 8 0 pgrppl 48 56 0 45 1 0 1 1 0 8 0 ucredpl 104 616 0 610 1 0 1 1 0 8 0 zombiepl 144 766 0 765 2 1 1 1 0 8 0 processpl 1152 815 0 765 4 0 4 4 0 8 0 procpl 664 1345 0 1288 7 1 6 6 0 8 0 sosppl 176 5 0 5 1 1 0 1 0 8 0 sockpl 552 1521 0 1513 35 20 15 17 0 8 13 mcl64k 65536 50 0 50 2 1 1 1 0 8 1 mcl8k 8192 8 0 8 2 1 1 1 0 8 1 mcl4k 4096 2997 0 2946 15 7 8 15 0 8 1 mcl2k 2048 361 0 361 3 1 2 2 0 8 2 mextrefs 64 195 0 195 2 1 1 1 0 8 1 mtagpl 96 5 0 5 1 1 0 1 0 8 0 mbufpl 256 8342 0 8132 20 3 17 19 0 8 3 bufpl 272 3200 0 104 207 0 207 207 0 8 0 anonpl 24 133126 0 131604 46 21 25 46 0 187 3 amapchunkpl 152 20100 0 19794 34 4 30 32 0 158 13 amappl16 200 2003 0 1982 5 2 3 5 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 408 0 408 1 1 0 1 0 8 0 amappl13 176 148 0 147 1 0 1 1 0 8 0 amappl12 168 1017 0 1000 2 0 2 2 0 8 0 amappl11 160 11 0 11 1 1 0 1 0 8 0 amappl10 152 58 0 58 1 1 0 1 0 8 0 amappl9 144 271 0 271 1 1 0 1 0 8 0 amappl8 136 100 0 100 1 1 0 1 0 8 0 amappl7 128 145 0 143 1 0 1 1 0 8 0 amappl6 120 145 0 144 1 0 1 1 0 8 0 amappl5 112 93 0 92 2 1 1 1 0 8 0 amappl4 104 264 0 261 1 0 1 1 0 8 0 amappl3 96 3719 0 3650 4 0 4 4 0 8 0 amappl2 88 535 0 526 2 0 2 2 0 8 0 amappl1 80 11610 0 11499 13 8 5 13 0 8 0 amappl 88 5209 0 5104 4 0 4 4 0 92 0 uvmvnodes 80 109 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 7 0 7 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 78 0 3 2 0 2 2 0 8 0 uaddrrnd 24 779 0 762 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 779 0 762 1 0 1 1 0 8 0 vmmpekpl 168 8070 0 8035 2 0 2 2 0 8 0 vmmpepl 168 56433 0 55680 82 38 44 82 0 357 0 vmsppl 368 778 0 762 4 1 3 4 0 8 0 rwobjpl 40 17908 0 17420 11 0 11 11 0 8 0 pdppl 4096 1564 0 1524 94 48 46 78 0 8 6 pvpl 32 349711 0 344334 121 46 75 106 0 265 18 pmappl 216 778 0 762 2 0 2 2 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 586 0 75 15 0 15 15 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace sysctl_sysvipc(ffff80002a7abdb8,1,200000000100,ffff80002a7abde8) at sysctl_sysvipc+0x529 sys/kern/kern_sysctl.c:2779 kern_sysctl(ffff80002a7abdb4,2,200000000100,ffff80002a7abde8,0,27,73ec1e08ab45bec0) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736 sys_sysctl(ffff80002f4b6a88,ffff80002a7abf10,ffff80002a7abe60) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a7abf10) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a7abf10) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc9fb9a1ea30, count: -5 ddb> machine ddbcpu 1 No such command ddb>