kernel: page fault trap, code=3 Stopped at copyout+0x57: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND *261545 46665 0 0 0x4000000 0 syz-executor copyout() at copyout+0x57 kern_sysctl_dirs(33,ffff80002a86b3a8,1,200000000240,ffff80002a86b3d8,0,8d38950e04443988,ffff80002a86b3a8) at kern_sysctl_dirs+0x67d sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80002a86b3a4,2,200000000240,ffff80002a86b3d8,0,0,de0311e24f05af67) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002ccf6a70,ffff80002a86b510,ffff80002a86b460) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a86b510) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86b510) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x375d13c53a0, count: 9 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: attempt to access user address 0x200000000240 in supervisor mode ddb> trace copyout() at copyout+0x57 kern_sysctl_dirs(33,ffff80002a86b3a8,1,200000000240,ffff80002a86b3d8,0,8d38950e04443988,ffff80002a86b3a8) at kern_sysctl_dirs+0x67d sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80002a86b3a4,2,200000000240,ffff80002a86b3d8,0,0,de0311e24f05af67) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002ccf6a70,ffff80002a86b510,ffff80002a86b460) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a86b510) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86b510) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x375d13c53a0, count: -6 ddb> show registers rdi 0x200000000240 rsi 0xffff8000015de000 rbp 0xffff80002a86b0c0 rbx 0x1918 __ALIGN_SIZE+0x918 rdx 0xffff80002a866000 rcx 0x323 rax 0x1918 __ALIGN_SIZE+0x918 r8 0x7f7fffffc000 r9 0 r10 0x4df2d33f22c4e2d0 r11 0xffffffff82ec4290 copy_fault r12 0xffff8000015de000 r13 0 r14 0x200000000240 r15 0x1918 __ALIGN_SIZE+0x918 rip 0xffffffff82ec41b7 copyout+0x57 cs 0x8 rflags 0x50202 acpi_pdirpa+0x3c073 rsp 0xffff80002a86b060 ss 0x10 copyout+0x57: repe movsq (%rsi),%es:(%rdi) ddb> show proc PROC (syz-executor) tid=261545 pid=46665 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002ccf6030,0xffff80002ccf74c0 process=0xffff800035d15fd0 user=0xffff80002a866000, vmspace=0xfffffd806c2882e0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 37777 162045 29677 0 2 0 syz-executor 37777 286554 29677 0 3 0x4000080 fsleep syz-executor 46665 421559 73374 0 2 0 syz-executor *46665 261545 73374 0 7 0x4000000 syz-executor 46665 355081 73374 0 3 0x4000080 fsleep syz-executor 46665 299908 73374 0 3 0x4000080 fsleep syz-executor 64948 76723 99505 0 2 0 syz-executor 64948 354732 99505 0 3 0x4000080 fsleep syz-executor 18700 514307 3847 0 2 0 syz-executor 18700 261624 3847 0 3 0x4000080 fsleep syz-executor 56161 29329 44488 0 3 0x80 nanoslp syz-executor 56161 397397 44488 0 3 0x4000080 kqsel syz-executor 32231 305718 8375 0 2 0 syz-executor 32231 426393 8375 0 3 0x4000080 fsleep syz-executor 32231 274111 8375 0 3 0x4000080 fsleep syz-executor 93345 413135 59381 0 2 0 syz-executor 93345 110981 59381 0 2 0x4000000 syz-executor 30333 318648 0 0 3 0x14200 acct acct 87763 521104 97679 0 3 0x3000 suspend syz-executor 87763 61723 97679 0 2 0x4081000 syz-executor 87763 17756 97679 0 3 0x4081000 inode syz-executor 73374 514415 68986 0 3 0x82 nanoslp syz-executor 3847 194187 68986 0 3 0x82 nanoslp syz-executor 59381 34416 68986 0 3 0x82 nanoslp syz-executor 29677 120749 68986 0 2 0xc82 syz-executor 97679 378625 68986 0 3 0x82 nanoslp syz-executor 70996 243707 1 0 3 0x100083 ttyopn getty 99505 521130 68986 0 3 0x82 nanoslp syz-executor 8375 508720 68986 0 3 0x82 nanoslp syz-executor 31229 519481 0 0 3 0x14200 bored sosplice 44488 476301 68986 0 3 0x82 nanoslp syz-executor 68986 369467 28662 0 2 0x2 syz-executor 28662 421676 6948 0 3 0x10008a sigsusp ksh 6948 227967 41654 0 3 0x98 kqread sshd-session 41654 253531 72564 0 3 0x92 kqread sshd-session 72564 439620 1 0 3 0x88 kqread sshd 82341 154293 82662 73 3 0x1100090 kqread syslogd 82662 65459 1 0 3 0x100082 sbwait syslogd 20628 334043 1 0 3 0x100080 kqread resolvd 60751 246294 53985 77 3 0x100092 kqread dhcpleased 15815 348543 53985 77 3 0x100092 kqread dhcpleased 53985 15874 1 0 3 0x80 kqread dhcpleased 35462 504121 0 0 3 0x14200 bored smr 86652 323959 0 0 2 0x14200 zerothread 57120 261861 0 0 3 0x14200 aiodoned aiodoned 82346 489560 0 0 3 0x14200 syncer update 7268 206071 0 0 3 0x14200 cleaner cleaner 50273 11060 0 0 3 0x14200 reaper reaper 28338 477966 0 0 3 0x14200 pgdaemon pagedaemon 93545 219091 0 0 3 0x14200 bored viomb 5636 12234 0 0 3 0x40014200 acpi0 acpi0 17637 120877 0 0 3 0x14200 bored softnet3 56421 31301 0 0 3 0x14200 bored softnet2 65161 435133 0 0 3 0x14200 bored softnet1 66914 270807 0 0 3 0x14200 bored softnet0 56284 380126 0 0 3 0x14200 bored systqmp 69895 351160 0 0 3 0x14200 bored systq 76292 10478 0 0 2 0x40014200 softclock 95750 155852 0 0 3 0x40014200 idle0 1 184516 0 0 3 0x80082 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 10216 11075K 12146K 166960K 17542 0 pcb 18 18K 21K 166960K 1190 0 rtable 237 20K 20K 166960K 1075 0 pf 29 12K 21K 166960K 318 0 ifaddr 39 7K 8K 166960K 228 0 ifgroup 46 2K 2K 166960K 393 0 sysctl 4 1K 9K 166960K 67 0 counters 31 17K 18K 166960K 244 0 ioctlops 0 0K 4K 166960K 1058 0 iov 0 0K 28K 166960K 433 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1527 96K 97K 166960K 6150 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 10K 166960K 89 0 VM map 2 1K 1K 166960K 2 0 sem 21 40K 41K 166960K 76 0 dirhash 6 1K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 106K 166960K 3944 0 sigio 0 0K 0K 166960K 170 0 proc 60 59K 100K 166960K 1094 0 subproc 72 4K 4K 166960K 157 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 659 0 in_multi 90 6K 7K 166960K 407 0 ether_multi 1 0K 0K 166960K 63 0 mrt 2 0K 0K 166960K 43 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 1001 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 72 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 237 159K 182K 166960K 36249 0 UVM aobj 116 16K 16K 166960K 126 0 pinsyscall 39 78K 94K 166960K 5208 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 228 0 NDP 10 0K 2K 166960K 163 0 temp 78 8696K 8944K 166960K 158175 0 kqueue 15 24K 40K 166960K 747 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 120 531 0 527 6 3 3 3 0 8 2 rtentry 136 350 0 255 5 1 4 5 0 8 0 unpcb 144 3410 0 3391 16 12 4 7 0 8 3 syncache 336 9 0 9 3 3 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 1851 0 1846 28 21 7 13 0 8 6 arp 88 56 0 34 1 0 1 1 0 8 0 ipq 40 11 0 9 2 1 1 1 0 8 0 ipqe 40 27 0 25 2 1 1 1 0 8 0 inpcb 328 5110 0 5096 37 30 7 13 0 8 5 ip6q 72 13 0 11 2 1 1 1 0 8 0 ip6af 40 24 0 22 2 1 1 1 0 8 0 nd6 104 98 0 76 1 0 1 1 0 8 0 pkpcb 40 20 0 20 4 3 1 1 0 8 1 kcovpl 48 17 0 9 1 0 1 1 0 8 0 mppekey 1024 4 0 4 3 3 0 1 0 8 0 ppxss 1072 170 0 170 4 3 1 1 0 8 1 pppxif 1384 17 0 17 4 3 1 1 0 8 1 pfrule 1344 1 0 1 1 1 0 1 0 8 0 rttmr 136 10 0 10 4 3 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 1944 0 1532 41 10 31 34 0 8 5 art_table 32 1947 0 1532 5 0 5 5 0 8 0 art_node 16 342 0 264 1 0 1 1 0 8 0 sysvmsgpl 40 60 0 59 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 70 0 51 1 0 1 1 0 8 0 shmpl 112 123 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 13 3 1 2 3 0 8 0 dino2pl 256 9116 0 7603 96 0 96 96 0 8 0 ffsino 248 9116 0 7603 96 0 96 96 0 8 0 nchpl 144 14588 0 12887 64 0 64 64 0 8 0 rtmask 32 20 0 20 4 3 1 1 0 8 1 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 55709 0 55708 2 1 1 2 0 8 0 kstatmem 264 252 0 232 3 1 2 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 18 0 18 3 2 1 1 0 8 1 scxspl 216 43713 0 43713 12 9 3 8 1 8 3 plimitpl 152 1166 0 1149 1 0 1 1 0 8 0 sigapl 424 4226 0 4178 8 1 7 8 0 8 1 knotepl 120 157973 0 157918 89 79 10 24 0 8 7 kqueuepl 184 1573 0 1561 11 8 3 4 0 8 2 pipepl 296 435 0 408 5 0 5 5 0 8 2 fdescpl 440 4179 0 4149 5 1 4 5 0 8 0 filepl 120 33049 0 32829 27 14 13 14 0 8 4 lockfpl 104 2063 0 2045 4 2 2 2 0 8 1 lockfspl 48 894 0 876 1 0 1 1 0 8 0 sessionpl 144 33 0 25 1 0 1 1 0 8 0 pgrppl 48 98 0 82 1 0 1 1 0 8 0 ucredpl 104 6263 0 6251 1 0 1 1 0 8 0 zombiepl 144 5009 0 5008 3 2 1 1 0 8 0 processpl 1160 4226 0 4178 5 1 4 5 0 8 0 procpl 656 10198 0 10138 8 2 6 8 0 8 0 sosppl 168 21 0 21 4 3 1 1 0 8 1 sockpl 528 9395 0 9358 35 25 10 13 0 8 7 mcl64k 65536 193 0 192 4 3 1 1 0 8 0 mcl16k 16384 7 0 7 4 3 1 1 0 8 1 mcl12k 12288 4 0 4 3 2 1 1 0 8 1 mcl9k 9216 8 0 8 4 3 1 1 0 8 1 mcl8k 8192 66 0 66 4 3 1 1 0 8 1 mcl4k 4096 7678 0 7624 16 8 8 13 0 8 0 mcl2k2 2112 1 0 1 1 1 0 1 0 8 0 mcl2k 2048 4681 0 4676 4 2 2 2 0 8 1 mtagpl 96 205 0 170 3 0 3 3 0 8 1 mbufpl 256 63556 0 63368 25 8 17 21 0 8 3 bufpl 280 11263 0 5036 446 0 446 446 0 8 1 anonpl 24 507840 0 503307 140 85 55 58 0 187 16 amapchunkpl 152 127975 0 127462 65 37 28 36 0 158 4 amappl16 200 8208 0 8105 62 48 14 18 0 8 8 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 127 0 117 1 0 1 1 0 8 0 amappl13 176 21 0 20 1 0 1 1 0 8 0 amappl12 168 4936 0 4906 2 0 2 2 0 8 0 amappl11 160 55 0 45 1 0 1 1 0 8 0 amappl10 152 8 0 8 2 2 0 1 0 8 0 amappl9 144 276 0 275 2 1 1 1 0 8 0 amappl8 136 21 0 19 1 0 1 1 0 8 0 amappl7 128 124 0 112 1 0 1 1 0 8 0 amappl6 120 258 0 254 1 0 1 1 0 8 0 amappl5 112 151 0 144 1 0 1 1 0 8 0 amappl4 104 325 0 307 1 0 1 1 0 8 0 amappl3 96 26272 0 26157 4 0 4 4 0 8 0 amappl2 88 754 0 698 2 0 2 2 0 8 0 amappl1 80 24242 0 23686 13 1 12 13 0 8 0 amappl 88 34674 0 34502 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 2 0 2 2 1 1 1 0 8 1 dma2048 2048 1 0 1 1 0 1 1 0 8 1 dma1024 1024 67 0 66 1 0 1 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 265 0 265 3 2 1 1 0 8 1 dma64 64 7 0 7 2 2 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 125 0 10 3 0 3 3 0 8 0 uaddrrnd 24 4179 0 4149 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4179 0 4149 1 0 1 1 0 8 0 vmmpekpl 168 29254 0 29194 3 0 3 3 0 8 0 vmmpepl 168 254868 0 252857 120 24 96 97 0 357 8 vmsppl 360 4178 0 4149 4 1 3 4 0 8 0 rwobjpl 32 63704 0 56720 59 0 59 59 0 8 0 pdppl 4096 8364 0 8298 160 94 66 80 0 8 0 pvpl 32 1673826 0 1663608 266 129 137 141 0 265 37 pmappl 216 4178 0 4149 3 1 2 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 403 0 164 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace copyout() at copyout+0x57 kern_sysctl_dirs(33,ffff80002a86b3a8,1,200000000240,ffff80002a86b3d8,0,8d38950e04443988,ffff80002a86b3a8) at kern_sysctl_dirs+0x67d sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80002a86b3a4,2,200000000240,ffff80002a86b3d8,0,0,de0311e24f05af67) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002ccf6a70,ffff80002a86b510,ffff80002a86b460) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a86b510) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86b510) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x375d13c53a0, count: -6 ddb> machine ddbcpu 1 No such command ddb> trace copyout() at copyout+0x57 kern_sysctl_dirs(33,ffff80002a86b3a8,1,200000000240,ffff80002a86b3d8,0,8d38950e04443988,ffff80002a86b3a8) at kern_sysctl_dirs+0x67d sys/kern/kern_sysctl.c:442 kern_sysctl(ffff80002a86b3a4,2,200000000240,ffff80002a86b3d8,0,0,de0311e24f05af67) at kern_sysctl+0x167 sys/kern/kern_sysctl.c:526 sys_sysctl(ffff80002ccf6a70,ffff80002a86b510,ffff80002a86b460) at sys_sysctl+0x3f2 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a86b510) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a86b510) at syscall+0x97e sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x375d13c53a0, count: -6