panic: missing alias Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *383774 5760 0 0 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832ed562) at panic+0x1cf sys/kern/subr_prf.c:198 vgonel(fffffd805cc59a30,ffff80002a7cc030) at vgonel+0x681 sys/kern/vfs_subr.c:1218 checkalias(fffffd805cc59cb8,0,ffff800000b57800) at checkalias+0x1ab ffs_vinit(ffff800000b57800,ffff800038932af0) at ffs_vinit+0x13d ffs_vget(ffff800000b57800,19a52,ffff800038932bd8) at ffs_vget+0x421 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd8008457510,ffff800038932e60,ffff800038932e90) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800038932e30) at vfs_lookup+0x8e1 sys/kern/vfs_lookup.c:566 namei(ffff800038932e30) at namei+0x7aa sys/kern/vfs_lookup.c:250 ttioctl(ffff800001424a00,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ttioctl+0x1884 sys/kern/tty.c:800 ptyioctl(504,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ptyioctl+0x337 sys/kern/tty_pty.c:884 VOP_IOCTL(fffffd806f742be8,80047462,ffff8000389331c0,3,fffffd807f7d74e0,ffff80002a7cc030) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8060622350,80047462,ffff8000389331c0,ffff80002a7cc030) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 end trace frame: 0xffff8000389332c0, count: 0 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: missing alias ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832ed562) at panic+0x1cf sys/kern/subr_prf.c:198 vgonel(fffffd805cc59a30,ffff80002a7cc030) at vgonel+0x681 sys/kern/vfs_subr.c:1218 checkalias(fffffd805cc59cb8,0,ffff800000b57800) at checkalias+0x1ab ffs_vinit(ffff800000b57800,ffff800038932af0) at ffs_vinit+0x13d ffs_vget(ffff800000b57800,19a52,ffff800038932bd8) at ffs_vget+0x421 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd8008457510,ffff800038932e60,ffff800038932e90) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800038932e30) at vfs_lookup+0x8e1 sys/kern/vfs_lookup.c:566 namei(ffff800038932e30) at namei+0x7aa sys/kern/vfs_lookup.c:250 ttioctl(ffff800001424a00,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ttioctl+0x1884 sys/kern/tty.c:800 ptyioctl(504,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ptyioctl+0x337 sys/kern/tty_pty.c:884 VOP_IOCTL(fffffd806f742be8,80047462,ffff8000389331c0,3,fffffd807f7d74e0,ffff80002a7cc030) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8060622350,80047462,ffff8000389331c0,ffff80002a7cc030) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002a7cc030,ffff8000389333a0,ffff8000389332f0) at sys_ioctl+0x5bf syscall(ffff8000389333a0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3567e47ff0, count: -17 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000389328e0 rbx 0 rdx 0 rcx 0 rax 0xffff80002a7cc030 r8 0x101010101010101 r9 0x8080808080808080 r10 0x2408ef191600a3f9 r11 0xf4088b5cd89248c8 r12 0 r13 0x800 r14 0 r15 0x1 rip 0xffffffff815b9e05 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000389328d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=383774 pid=5760 tcnt=2 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=0xffff80002a7ccd00,0xffff80003c970f98 process=0xffff80002a86e2a0 user=0xffff80003892e000, vmspace=0xfffffd806c0c29e8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 36598 285871 64070 0 2 0 syz-executor 36598 495273 64070 0 2 0x4000000 syz-executor 39612 136330 24005 0 2 0 syz-executor 39612 287695 24005 0 3 0x4000080 fsleep syz-executor 8542 163731 5852 0 2 0 syz-executor 8542 434469 5852 0 3 0x4000080 fsleep syz-executor 36142 520645 85827 -1 2 0x10 syz-executor 36142 232285 85827 -1 3 0x4000090 fsleep syz-executor 36142 456412 85827 -1 3 0x4000090 fsleep syz-executor 36142 416173 85827 -1 3 0x4000090 fsleep syz-executor 30785 96909 74419 0 2 0 syz-executor 30785 192470 74419 0 3 0x4000080 fsleep syz-executor 82652 144129 81129 0 2 0 syz-executor 82652 523052 81129 0 3 0x4000080 fsleep syz-executor 82652 511393 81129 0 2 0x4000000 syz-executor 5760 91006 60541 0 2 0 syz-executor * 5760 383774 60541 0 7 0x4000000 syz-executor 10425 90274 98552 0 2 0 syz-executor 10425 46208 98552 0 3 0x4000080 kqpoll syz-executor 10425 313403 98552 0 3 0x4000080 fsleep syz-executor 76870 258469 0 0 3 0x14280 nfsidl nfsio 97313 454252 0 0 3 0x14280 nfsidl nfsio 24485 402314 0 0 3 0x14280 nfsidl nfsio 67737 495175 0 0 3 0x14280 nfsidl nfsio 33602 437986 0 0 3 0x14280 nfsidl nfsio 12573 249165 0 0 3 0x14280 nfsidl nfsio 35116 235807 0 0 3 0x14280 nfsidl nfsio 23834 381497 0 0 3 0x14280 nfsidl nfsio 41930 410202 0 0 3 0x14280 nfsidl nfsio 70642 358520 0 0 3 0x14280 nfsidl nfsio 94360 418241 0 0 3 0x14280 nfsidl nfsio 28013 102190 0 0 3 0x14280 nfsidl nfsio 8863 183038 0 0 3 0x14280 nfsidl nfsio 39011 353072 0 0 3 0x14280 nfsidl nfsio 86288 395199 0 0 3 0x14280 nfsidl nfsio 66468 445212 0 0 3 0x14280 nfsidl nfsio 22415 282411 0 0 3 0x14280 nfsidl nfsio 13370 3153 0 0 3 0x14280 nfsidl nfsio 55593 439166 0 0 3 0x14280 nfsidl nfsio 49993 304240 0 0 3 0x14280 nfsidl nfsio 60541 210149 96149 0 3 0x82 nanoslp syz-executor 18949 291352 0 0 3 0x14200 acct acct 4551 480930 1 0 3 0x100083 ttyin getty 85663 320475 0 0 3 0x14200 bored sosplice 5852 261198 96149 0 3 0x82 nanoslp syz-executor 81129 212172 96149 0 3 0x82 nanoslp syz-executor 64070 440859 96149 0 3 0x82 nanoslp syz-executor 98552 34212 96149 0 3 0x82 nanoslp syz-executor 85827 13249 96149 0 3 0x82 nanoslp syz-executor 24005 120865 96149 0 3 0x82 nanoslp syz-executor 74419 316376 96149 0 3 0x82 nanoslp syz-executor 96149 169070 42375 0 3 0x82 kqread syz-executor 42375 238086 16761 0 3 0x10008a sigsusp ksh 16761 376959 83645 0 3 0x98 kqread sshd-session 83645 393155 47745 0 3 0x92 kqread sshd-session 47745 281027 1 0 3 0x88 kqread sshd 71249 449362 66366 73 3 0x1100090 kqread syslogd 66366 67217 1 0 3 0x100082 sbwait syslogd 50040 204120 1 0 3 0x100080 kqread resolvd 74680 152256 85713 77 3 0x100092 kqread dhcpleased 60420 98945 85713 77 3 0x100092 kqread dhcpleased 85713 517487 1 0 3 0x80 kqread dhcpleased 53838 348183 0 0 3 0x14200 bored smr 60138 175345 0 0 2 0x14200 zerothread 25763 198254 0 0 3 0x14200 aiodoned aiodoned 46266 107068 0 0 3 0x14200 syncer update 32191 208330 0 0 3 0x14200 cleaner cleaner 55519 127745 0 0 3 0x14200 reaper reaper 85555 188020 0 0 3 0x14200 pgdaemon pagedaemon 99621 59634 0 0 3 0x14200 bored viomb 78784 16143 0 0 3 0x40014200 acpi0 acpi0 74892 307303 0 0 3 0x14200 bored softnet3 8369 283460 0 0 3 0x14200 bored softnet2 78654 182939 0 0 3 0x14200 bored softnet1 28565 338708 0 0 3 0x14200 bored softnet0 60742 299477 0 0 3 0x14200 bored systqmp 11462 518849 0 0 3 0x14200 bored systq 71397 204667 0 0 3 0x40014200 tmoslp softclock 63579 472579 0 0 3 0x40014200 idle0 1 446564 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 10210 11076K 11364K 166960K 12009 0 pcb 19 18K 19K 166960K 345 0 rtable 145 5K 7K 166960K 495 0 pf 26 12K 20K 166960K 96 0 ifaddr 29 5K 7K 166960K 84 0 ifgroup 40 1K 2K 166960K 123 0 sysctl 3 1K 2K 166960K 7 0 counters 28 17K 17K 166960K 64 0 ioctlops 0 0K 4K 166960K 253 0 iov 0 0K 16K 166960K 182 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1462 92K 92K 166960K 2372 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 23 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 39 0 dirhash 12 2K 2K 166960K 42 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 97K 166960K 1146 0 sigio 0 0K 0K 166960K 47 0 proc 64 75K 124K 166960K 637 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 147 0 in_multi 56 4K 7K 166960K 144 0 ether_multi 1 0K 0K 166960K 7 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 277 1235K 1235K 166960K 277 0 exec 0 0K 1K 166960K 544 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 228 73K 89K 166960K 12221 0 UVM aobj 79 9K 9K 166960K 83 0 pinsyscall 39 78K 96K 166960K 2208 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 57 0 NDP 9 0K 2K 166960K 54 0 temp 74 8639K 8764K 166960K 44048 0 kqueue 16 26K 32K 166960K 183 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 120 118 0 113 1 0 1 1 0 8 0 rtentry 112 151 0 89 4 0 4 4 0 8 0 unpcb 144 1059 0 1044 10 8 2 6 0 8 1 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 808 316 0 311 8 7 1 7 0 8 0 arp 88 23 0 10 1 0 1 1 0 8 0 ipq 40 6 0 1 1 0 1 1 0 8 0 ipqe 40 49 0 44 1 0 1 1 0 8 0 inpcb 344 1629 0 1578 29 24 5 14 0 8 0 nd6 104 34 0 20 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1072 25 0 24 4 3 1 1 0 8 0 pppxif 1376 6 0 6 2 2 0 1 0 8 0 pfrule 1344 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 681 0 407 29 6 23 29 0 8 0 art_table 32 683 0 407 4 0 4 4 0 8 0 art_node 16 148 0 93 1 0 1 1 0 8 0 sysvmsgpl 40 17 0 13 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 34 0 24 1 0 1 1 0 8 0 shmpl 112 80 0 4 3 0 3 3 0 8 0 dirhash 1024 39 0 22 3 0 3 3 0 8 0 dino2pl 256 3726 0 2225 95 0 95 95 0 8 0 ffsino 248 3726 0 2225 95 0 95 95 0 8 0 nchpl 144 5379 0 3693 63 0 63 63 0 8 0 uvmvnodes 80 4266 0 0 88 0 88 88 0 8 0 vnodes 216 4266 0 0 237 0 237 237 0 8 0 namei 1024 20068 0 20066 2 1 1 2 0 8 0 kstatmem 264 70 0 52 2 0 2 2 0 8 0 scsiplug 72 4 0 4 3 3 0 1 0 8 0 scxspl 216 15547 0 15547 11 10 1 8 1 8 1 plimitpl 152 565 0 548 1 0 1 1 0 8 0 sigapl 424 1449 0 1381 9 1 8 8 0 8 0 futexpl 64 16873 0 16865 1 0 1 1 0 8 0 knotepl 120 181030 0 180975 26 23 3 10 0 8 0 kqueuepl 184 400 0 387 4 3 1 4 0 8 0 pipepl 296 249 0 222 7 4 3 5 0 8 0 fdescpl 440 1409 0 1379 5 1 4 5 0 8 0 filepl 120 10940 0 10668 23 14 9 17 0 8 0 lockfpl 104 568 0 565 1 0 1 1 0 8 0 lockfspl 48 180 0 177 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 47 0 31 1 0 1 1 0 8 0 ucredpl 104 2185 0 2171 1 0 1 1 0 8 0 zombiepl 144 1567 0 1567 3 2 1 1 0 8 1 processpl 1104 1449 0 1381 5 0 5 5 0 8 0 procpl 656 3095 0 3015 8 1 7 8 0 8 0 sosppl 168 10 0 10 3 3 0 1 0 8 0 sockpl 528 2841 0 2770 24 19 5 12 0 8 0 mcl64k 65536 25 0 25 3 3 0 1 0 8 0 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 24 0 23 4 3 1 1 0 8 0 mcl4k 4096 3808 0 3758 16 9 7 14 0 8 0 mcl2k2 2112 2 0 2 2 2 0 1 0 8 0 mcl2k 2048 1247 0 1244 7 5 2 4 0 8 0 mtagpl 96 80 0 78 2 1 1 2 0 8 0 mbufpl 256 15527 0 15420 30 15 15 24 0 8 0 bufpl 280 4338 0 131 301 0 301 301 0 8 0 anonpl 24 187365 0 181017 109 45 64 64 0 187 20 amapchunkpl 152 46591 0 46012 71 44 27 38 0 158 4 amappl16 200 3015 0 2856 40 20 20 20 0 8 8 amappl15 192 12 0 11 1 0 1 1 0 8 0 amappl14 184 109 0 99 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 2032 0 2002 3 1 2 3 0 8 0 amappl11 160 41 0 31 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 256 0 255 2 1 1 1 0 8 0 amappl8 136 19 0 17 1 0 1 1 0 8 0 amappl7 128 96 0 85 1 0 1 1 0 8 0 amappl6 120 175 0 172 1 0 1 1 0 8 0 amappl5 112 117 0 110 1 0 1 1 0 8 0 amappl4 104 303 0 286 1 0 1 1 0 8 0 amappl3 96 7981 0 7866 5 1 4 4 0 8 0 amappl2 88 638 0 583 2 0 2 2 0 8 0 amappl1 80 10625 0 10104 13 1 12 13 0 8 0 amappl 88 11796 0 11615 7 2 5 5 0 92 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 2 2 0 1 0 8 0 dma64 64 8 0 8 3 3 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 82 0 4 2 0 2 2 0 8 0 uaddrrnd 24 1409 0 1379 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1409 0 1379 1 0 1 1 0 8 0 vmmpekpl 168 12455 0 12421 2 0 2 2 0 8 0 vmmpepl 168 88706 0 86775 104 11 93 93 0 357 5 vmsppl 360 1408 0 1379 4 1 3 4 0 8 0 rwobjpl 32 27998 0 22662 45 0 45 45 0 8 0 pdppl 4096 2824 0 2758 116 50 66 82 0 8 0 pvpl 32 581637 0 569785 233 96 137 137 0 265 29 pmappl 216 1408 0 1379 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 322 0 105 8 0 8 8 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832ed562) at panic+0x1cf sys/kern/subr_prf.c:198 vgonel(fffffd805cc59a30,ffff80002a7cc030) at vgonel+0x681 sys/kern/vfs_subr.c:1218 checkalias(fffffd805cc59cb8,0,ffff800000b57800) at checkalias+0x1ab ffs_vinit(ffff800000b57800,ffff800038932af0) at ffs_vinit+0x13d ffs_vget(ffff800000b57800,19a52,ffff800038932bd8) at ffs_vget+0x421 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd8008457510,ffff800038932e60,ffff800038932e90) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800038932e30) at vfs_lookup+0x8e1 sys/kern/vfs_lookup.c:566 namei(ffff800038932e30) at namei+0x7aa sys/kern/vfs_lookup.c:250 ttioctl(ffff800001424a00,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ttioctl+0x1884 sys/kern/tty.c:800 ptyioctl(504,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ptyioctl+0x337 sys/kern/tty_pty.c:884 VOP_IOCTL(fffffd806f742be8,80047462,ffff8000389331c0,3,fffffd807f7d74e0,ffff80002a7cc030) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8060622350,80047462,ffff8000389331c0,ffff80002a7cc030) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002a7cc030,ffff8000389333a0,ffff8000389332f0) at sys_ioctl+0x5bf syscall(ffff8000389333a0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3567e47ff0, count: -17 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff832ed562) at panic+0x1cf sys/kern/subr_prf.c:198 vgonel(fffffd805cc59a30,ffff80002a7cc030) at vgonel+0x681 sys/kern/vfs_subr.c:1218 checkalias(fffffd805cc59cb8,0,ffff800000b57800) at checkalias+0x1ab ffs_vinit(ffff800000b57800,ffff800038932af0) at ffs_vinit+0x13d ffs_vget(ffff800000b57800,19a52,ffff800038932bd8) at ffs_vget+0x421 sys/ufs/ffs/ffs_vfsops.c:1283 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd8008457510,ffff800038932e60,ffff800038932e90) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff800038932e30) at vfs_lookup+0x8e1 sys/kern/vfs_lookup.c:566 namei(ffff800038932e30) at namei+0x7aa sys/kern/vfs_lookup.c:250 ttioctl(ffff800001424a00,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ttioctl+0x1884 sys/kern/tty.c:800 ptyioctl(504,80047462,ffff8000389331c0,3,ffff80002a7cc030) at ptyioctl+0x337 sys/kern/tty_pty.c:884 VOP_IOCTL(fffffd806f742be8,80047462,ffff8000389331c0,3,fffffd807f7d74e0,ffff80002a7cc030) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8060622350,80047462,ffff8000389331c0,ffff80002a7cc030) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff80002a7cc030,ffff8000389333a0,ffff8000389332f0) at sys_ioctl+0x5bf syscall(ffff8000389333a0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb3567e47ff0, count: -17