uvm_fault(0xfffffd806c1c8978, 0x0, 0, 1) -> e kernel: page fault trap, code=0 Stopped at _copyinstr+0x58: lodsb (%rsi) TID PID UID PRFLAGS PFLAGS CPU COMMAND * 23624 5460 0 0 0x4000000 0K syz-executor _copyinstr() at _copyinstr+0x58 namei(ffff80003c521528) at namei+0x190 sys/kern/vfs_lookup.c:156 vn_open(ffff80003c521528,2,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff8000358087e8,ffffff9c,0,1,0,ffff80003c5216d0) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c521780) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c521780) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4696e0be700, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806c1c8978, 0x0, 0, 1) -> e ddb{0}> trace _copyinstr() at _copyinstr+0x58 namei(ffff80003c521528) at namei+0x190 sys/kern/vfs_lookup.c:156 vn_open(ffff80003c521528,2,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff8000358087e8,ffffff9c,0,1,0,ffff80003c5216d0) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c521780) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c521780) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4696e0be700, count: -6 ddb{0}> show registers rdi 0xffff80002a25f400 rsi 0 rbp 0xffff80003c5212a0 rbx 0xffff80003c521568 rdx 0x400 rcx 0xffff80003c51c000 rax 0x7f7fffffc000 r8 0x400 r9 0xffff80003c521240 r10 0x5217a388626a0be9 r11 0xffffffff81ab7dc0 copystr_fault r12 0xffff80002a25f400 r13 0xffff80003c521568 r14 0x400 r15 0 rip 0xffffffff81ab7d98 _copyinstr+0x58 cs 0x8 rflags 0x50206 acpi_pdirpa+0x3c077 rsp 0xffff80003c521228 ss 0x10 _copyinstr+0x58: lodsb (%rsi) ddb{0}> show proc PROC (syz-executor) tid=23624 pid=5460 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800035809748,0xffffffff838f0a80 process=0xffff80003c4a26e8 user=0xffff80003c51c000, vmspace=0xfffffd806c1c8978 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 5460 272025 24148 0 2 0 syz-executor 5460 66449 24148 0 2 0x4000000 syz-executor * 5460 23624 24148 0 7 0x4000000 syz-executor 80835 354223 4783 60929 2 0x1000010 syz-executor 80835 66765 4783 60929 3 0x5000090 fsleep syz-executor 80835 503255 4783 60929 3 0x5000090 fsleep syz-executor 80835 132874 4783 60929 3 0x5000090 fsleep syz-executor 50813 518345 9280 0 2 0 syz-executor 50813 219165 9280 0 3 0x4000080 fsleep syz-executor 68800 146074 86769 0 2 0 syz-executor 68800 338860 86769 0 2 0x4000000 syz-executor 68800 50425 86769 0 3 0x4000080 fsleep syz-executor 96658 289878 27938 0 2 0 syz-executor 96658 384963 27938 0 3 0x4000080 fsleep syz-executor 96658 403027 27938 0 2 0x4000000 syz-executor 9280 269248 33723 0 3 0x82 nanoslp syz-executor 51931 509302 24790 0 3 0x3000 suspend syz-executor 51931 118681 24790 0 2 0x4081000 syz-executor 51931 200306 24790 0 3 0x4081000 fltagain2 syz-executor 51931 26578 24790 0 3 0x4081000 inode syz-executor 89621 152626 0 0 3 0x14200 acct acct 73009 3458 1 0 3 0x80 nanoslp init 24148 495873 33723 0 2 0xc82 syz-executor 86769 184759 33723 0 2 0xc82 syz-executor 28488 486745 33723 0 2 0xc82 syz-executor 27938 54858 33723 0 3 0x82 nanoslp syz-executor 9004 1618 0 0 3 0x14280 nfsidl nfsio 11990 335741 0 0 3 0x14280 nfsidl nfsio 77380 28335 0 0 3 0x14280 nfsidl nfsio 32144 52220 0 0 3 0x14280 nfsidl nfsio 2859 267132 0 0 3 0x14280 nfsidl nfsio 98577 142011 0 0 3 0x14280 nfsidl nfsio 8140 322898 0 0 3 0x14280 nfsidl nfsio 97576 36957 0 0 3 0x14280 nfsidl nfsio 83756 1062 0 0 3 0x14280 nfsidl nfsio 91418 469866 0 0 3 0x14280 nfsidl nfsio 65555 252644 0 0 3 0x14280 nfsidl nfsio 3551 191207 0 0 3 0x14280 nfsidl nfsio 8685 219053 0 0 3 0x14280 nfsidl nfsio 1514 306232 0 0 3 0x14280 nfsidl nfsio 35804 50218 0 0 3 0x14280 nfsidl nfsio 23559 280750 0 0 3 0x14280 nfsidl nfsio 40286 358065 0 0 3 0x14280 nfsidl nfsio 19208 439048 0 0 3 0x14280 nfsidl nfsio 75122 165851 0 0 3 0x14280 nfsidl nfsio 48637 382141 0 0 3 0x14280 nfsidl nfsio 69930 121319 33723 0 3 0x82 nanoslp syz-executor 26287 131063 0 0 3 0x14200 bored sosplice 24790 351020 33723 0 3 0x82 nanoslp syz-executor 4783 411819 33723 0 2 0xc82 syz-executor 33723 291289 69924 0 2 0x2 syz-executor 69924 464698 616 0 3 0x10008a sigsusp ksh 616 48388 12240 0 3 0x98 kqread sshd-session 12240 223108 39016 0 3 0x92 kqread sshd-session 39016 395571 1 0 3 0x88 kqread sshd 72670 181512 60003 74 3 0x1100092 bpf pflogd 60003 260212 1 0 3 0x80 sbwait pflogd 66296 341674 78961 73 3 0x1100090 kqread syslogd 78961 302704 1 0 3 0x100082 sbwait syslogd 68400 118964 1 0 3 0x100080 kqread resolvd 67284 109928 81529 77 3 0x100092 kqread dhcpleased 66987 428114 81529 77 3 0x100092 kqread dhcpleased 81529 136809 1 0 3 0x80 kqread dhcpleased 84075 160245 0 0 3 0x14200 bored smr 32266 500037 0 0 2 0x14200 zerothread 34398 115774 0 0 3 0x14200 aiodoned aiodoned 80809 160424 0 0 3 0x14200 syncer update 16139 403768 0 0 3 0x14200 cleaner cleaner 88255 142907 0 0 3 0x14200 reaper reaper 9943 411077 0 0 3 0x14200 pgdaemon pagedaemon 43123 221487 0 0 3 0x14200 bored viomb 39241 392291 0 0 3 0x40014200 acpi0 acpi0 34043 16045 0 0 7 0x40014200 idle1 23325 451292 0 0 3 0x14200 bored softnet3 87723 222067 0 0 3 0x14200 bored softnet2 13636 338941 0 0 3 0x14200 bored softnet1 18245 164140 0 0 3 0x14200 bored softnet0 91305 15065 0 0 3 0x14200 bored systqmp 16076 507984 0 0 3 0x14200 bored systq 31932 392653 0 0 3 0x14200 tmoslp softclockmp 24758 178071 0 0 2 0x40014200 softclock 97035 452001 0 0 3 0x40014200 idle0 1 467141 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 5460 (syz-executor) thread 0xffff800035809748 (66449) exclusive rrwlock inode r = 0 (0xfffffd806e07c898) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1732 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1636 #11 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e089880) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1588 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 5460 (syz-executor) thread 0xffff8000358087e8 (23624) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8392d428) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 doopenat+0x314 sys/kern/vfs_syscalls.c:1137 #2 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #2 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #3 Xsyscall+0x128 Process 51931 (syz-executor) thread 0xffff80003c459738 (118681) exclusive rrwlock inode r = 0 (0xfffffd806e132e30) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 Process 51931 (syz-executor) thread 0xffff8000358082c8 (26578) exclusive rrwlock inode r = 0 (0xfffffd806e0ce0b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1588 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10247 11199K 11776K 166960K 17231 0 pcb 17 13K 29K 166960K 548 0 rtable 247 21K 23K 166960K 1016 0 pf 48 20K 83K 166960K 432 0 ifaddr 40 7K 9K 166960K 187 0 ifgroup 61 2K 2K 166960K 329 0 sysctl 4 1K 9K 166960K 89 0 counters 72 37K 38K 166960K 332 0 ioctlops 0 0K 4K 166960K 2289 0 iov 0 0K 28K 166960K 134 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1580 99K 100K 166960K 4939 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 41 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 110 0 dirhash 12 2K 2K 166960K 63 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 110K 166960K 2663 0 sigio 0 0K 0K 166960K 106 0 proc 63 79K 128K 166960K 1106 0 subproc 72 4K 4K 166960K 156 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 434 0 in_multi 81 5K 7K 166960K 291 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 21 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 169 758K 758K 166960K 169 0 exec 0 0K 1K 166960K 749 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 11 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 266 165K 185K 166960K 24949 0 UVM aobj 82 3K 3K 166960K 89 0 pinsyscall 42 84K 106K 166960K 4023 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 137 0 NDP 14 0K 1K 166960K 132 0 temp 81 8696K 8776K 166960K 140486 0 kqueue 14 22K 30K 166960K 524 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 273 0 270 4 1 3 3 0 8 2 rtentry 176 310 0 213 6 0 6 6 0 8 0 unpcb 144 1917 0 1898 14 12 2 9 0 8 1 syncache 336 16 0 16 5 4 1 1 0 8 1 tcpqe 32 8 0 8 3 3 0 1 0 8 0 tcpcb 736 993 0 985 18 10 8 8 0 8 6 arp 128 44 0 29 1 0 1 1 0 8 0 inpcb 328 2864 0 2852 34 24 10 13 0 8 8 nd6 144 84 0 50 2 0 2 2 0 8 0 pkpcb 40 36 0 36 4 3 1 1 0 8 1 kcovpl 48 17 0 9 1 0 1 1 0 8 0 mppekey 1024 3 0 3 2 2 0 1 0 8 0 ppxss 1192 93 0 92 2 1 1 1 0 8 0 pppxif 1504 20 0 20 3 2 1 1 0 8 1 pfstscr 40 3 0 3 1 1 0 1 0 8 0 pffrag 232 21 0 12 1 0 1 1 0 482 0 pffrnode 88 13 0 5 1 0 1 1 0 8 0 pffrent 40 39 0 30 1 0 1 1 0 8 0 pfosfp 40 1430 0 1006 5 0 5 5 0 8 0 pfosfpen 112 1430 0 714 21 0 21 21 0 8 0 pfrktable 1344 7 0 3 1 0 1 1 0 8 0 pfanchor 1288 7 0 0 1 0 1 1 0 8 0 pftag 88 3 0 0 1 0 1 1 0 8 0 pfstitem 24 171 0 80 1 0 1 1 0 8 0 pfstkey 128 186 0 94 4 0 4 4 0 8 0 pfstate 384 179 0 89 10 0 10 10 0 8 0 pfrule 1344 135 0 118 3 1 2 2 0 8 0 rttmr 136 7 0 7 4 4 0 1 0 8 0 art_heap8 4096 6 0 2 6 2 4 6 0 8 0 art_heap4 256 1540 0 1007 45 7 38 39 0 8 2 art_table 32 1546 0 1009 6 1 5 6 0 8 0 art_node 16 300 0 212 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 4 0 4 1 1 0 1 0 8 0 semapl 112 107 0 97 1 0 1 1 0 8 0 shmpl 112 86 0 7 3 0 3 3 0 8 0 dirhash 1024 51 0 34 3 0 3 3 0 8 0 dino2pl 256 6363 0 4839 96 0 96 96 0 8 0 ffsino 288 6363 0 4839 109 0 109 109 0 8 0 nchpl 144 10024 0 8302 65 0 65 65 0 8 0 rtmask 32 12 0 12 3 3 0 1 0 8 0 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 38866 0 38863 3 2 1 1 0 8 0 percpumem 16 181 0 130 1 0 1 1 0 8 0 pfiaddrpl 120 3 0 1 1 0 1 1 0 8 0 kstatmem 264 194 0 162 4 1 3 3 0 8 0 scsiplug 72 16 0 16 6 5 1 1 0 8 1 scxspl 216 43856 0 43856 13 11 2 8 1 8 2 plimitpl 152 668 0 651 1 0 1 1 0 8 0 sigapl 424 2973 0 2901 10 1 9 9 0 8 0 knotepl 120 815 0 0 24 0 24 24 0 8 0 kqueuepl 224 1170 0 1157 13 8 5 5 0 8 4 pipepl 336 468 0 441 8 2 6 6 0 8 3 fdescpl 520 2919 0 2887 3 0 3 3 0 8 0 filepl 160 21541 0 21312 34 17 17 19 0 8 4 lockfpl 104 1503 0 1500 4 3 1 2 0 8 0 lockfspl 48 485 0 482 1 0 1 1 0 8 0 sessionpl 144 45 0 37 1 0 1 1 0 8 0 pgrppl 48 90 0 74 1 0 1 1 0 8 0 ucredpl 104 3291 0 3276 1 0 1 1 0 8 0 zombiepl 144 2904 0 2901 1 0 1 1 0 8 0 processpl 1240 2973 0 2901 6 0 6 6 0 8 0 procpl 656 6667 0 6582 8 0 8 8 0 8 0 srpgc 96 16 0 16 6 5 1 1 0 8 1 sosppl 168 13 0 13 4 3 1 1 0 8 1 sockpl 728 5216 0 5182 54 42 12 22 0 8 8 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 24 0 0 3 0 3 3 0 8 0 mtagpl 96 106 0 0 3 0 3 3 0 8 0 mbufpl 256 1255 0 0 76 0 76 76 0 8 0 bufpl 280 14999 0 8857 441 1 440 440 0 8 1 anonpl 32 18192 0 0 147 0 147 147 0 246 0 amapchunkpl 152 85362 0 84661 62 22 40 40 0 158 11 amappl16 200 9091 0 8497 46 14 32 32 0 8 0 amappl15 192 5 0 5 2 2 0 1 0 8 0 amappl14 184 162 0 150 1 0 1 1 0 8 0 amappl13 176 8 0 8 3 3 0 1 0 8 0 amappl12 168 3714 0 3683 3 1 2 2 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 8 0 7 2 1 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 21 0 18 1 0 1 1 0 8 0 amappl7 128 139 0 127 1 0 1 1 0 8 0 amappl6 120 284 0 280 1 0 1 1 0 8 0 amappl5 112 164 0 153 1 0 1 1 0 8 0 amappl4 104 391 0 372 1 0 1 1 0 8 0 amappl3 96 17454 0 17335 4 0 4 4 0 8 0 amappl2 88 869 0 805 2 0 2 2 0 8 0 amappl1 80 22069 0 21478 16 1 15 15 0 8 0 amappl 88 23605 0 23410 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 11 0 11 4 4 0 1 0 8 0 dma128 128 260 0 260 5 4 1 1 0 8 1 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 20 0 19 1 0 1 1 0 8 0 aobjpl 72 88 0 7 2 0 2 2 0 8 0 uaddrrnd 24 2919 0 2887 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2919 0 2887 1 0 1 1 0 8 0 vmmpekpl 168 22548 0 22480 4 0 4 4 0 8 0 vmmpepl 168 189341 0 186717 143 22 121 126 0 357 5 vmsppl 480 2918 0 2887 6 1 5 5 0 8 0 rwobjpl 72 53715 0 46208 138 1 137 138 0 8 0 pdppl 4096 5845 0 5774 127 54 73 85 0 8 2 pvpl 32 25965 0 0 210 0 210 210 0 265 0 pmappl 256 2918 0 2887 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 529 0 88 13 0 13 13 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace _copyinstr() at _copyinstr+0x58 namei(ffff80003c521528) at namei+0x190 sys/kern/vfs_lookup.c:156 vn_open(ffff80003c521528,2,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff8000358087e8,ffffff9c,0,1,0,ffff80003c5216d0) at doopenat+0x32e sys/kern/vfs_syscalls.c:1137 syscall(ffff80003c521780) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c521780) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4696e0be700, count: -6 ddb{0}> machine ddbcpu 1