uvm_fault(0xfffffd8070c9ab98, 0x10, 0, 1) -> e kernel: page fault trap, code=0 Stopped at VOP_ISLOCKED+0x36: movq 0x10(%rax),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *411904 77055 0 0 0x4000000 0 syz-executor VOP_ISLOCKED(fffffd8077102dc0) at VOP_ISLOCKED+0x36 sys/kern/vfs_vops.c:67 getnewvnode(1,ffff800000b58800,ffffffff83496028,ffff80002a8168e0) at getnewvnode+0x1f8 sys/kern/vfs_subr.c:429 ffs_vget(ffff800000b58800,d30f,ffff80002a8169b0) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1207 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd800946b510,ffff80002a816e78,ffff80002a816ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a816e48) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a816e48) at namei+0x7ca sys/kern/vfs_lookup.c:250 ptm_vn_open(ffff80002a816e48) at ptm_vn_open+0x40 sys/kern/tty_pty.c:1014 ptmioctl(5100,40287401,ffff80002a817160,3,ffff800038d1c2c0) at ptmioctl+0x89d sys/kern/tty_pty.c:1179 VOP_IOCTL(fffffd806f2c5518,40287401,ffff80002a817160,3,fffffd8007bfd5b0,ffff800038d1c2c0) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8068005ea0,40287401,ffff80002a817160,ffff800038d1c2c0) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800038d1c2c0,ffff80002a817330,ffff80002a817280) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a817330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a817330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b87f67ec10, count: 1 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(0xfffffd8070c9ab98, 0x10, 0, 1) -> e ddb> trace VOP_ISLOCKED(fffffd8077102dc0) at VOP_ISLOCKED+0x36 sys/kern/vfs_vops.c:67 getnewvnode(1,ffff800000b58800,ffffffff83496028,ffff80002a8168e0) at getnewvnode+0x1f8 sys/kern/vfs_subr.c:429 ffs_vget(ffff800000b58800,d30f,ffff80002a8169b0) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1207 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd800946b510,ffff80002a816e78,ffff80002a816ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a816e48) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a816e48) at namei+0x7ca sys/kern/vfs_lookup.c:250 ptm_vn_open(ffff80002a816e48) at ptm_vn_open+0x40 sys/kern/tty_pty.c:1014 ptmioctl(5100,40287401,ffff80002a817160,3,ffff800038d1c2c0) at ptmioctl+0x89d sys/kern/tty_pty.c:1179 VOP_IOCTL(fffffd806f2c5518,40287401,ffff80002a817160,3,fffffd8007bfd5b0,ffff800038d1c2c0) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8068005ea0,40287401,ffff80002a817160,ffff800038d1c2c0) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800038d1c2c0,ffff80002a817330,ffff80002a817280) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a817330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a817330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b87f67ec10, count: -14 ddb> show registers rdi 0xfffffd8077102dc0 rsi 0x1726 __ALIGN_SIZE+0x726 rbp 0xffff80002a816830 rbx 0xfffffd8077102dc0 rdx 0 rcx 0x1726 __ALIGN_SIZE+0x726 rax 0 r8 0x30 r9 0 r10 0x997deab391de47d1 r11 0x61aecd7b994bc374 r12 0 r13 0x1726 __ALIGN_SIZE+0x726 r14 0xfffffd8077102dc0 r15 0xffff800000b58800 rip 0xffffffff81a9e196 VOP_ISLOCKED+0x36 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a816800 ss 0x10 VOP_ISLOCKED+0x36: movq 0x10(%rax),%r14 ddb> show proc PROC (syz-executor) tid=411904 pid=77055 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=83, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a830a90,0xffff80002a831500 process=0xffff800031500018 user=0xffff80002a812000, vmspace=0xfffffd8070c9ab98 estcpu=33, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 9808 184734 8345 0 2 0 syz-executor 9808 56175 8345 0 3 0x4000080 fsleep syz-executor 87518 14489 92590 0 2 0 syz-executor 87518 157469 92590 0 3 0x4000080 fsleep syz-executor 86655 326388 66538 0 2 0 syz-executor 86655 320087 66538 0 3 0x4000080 kqsel syz-executor 86655 355106 66538 0 2 0x4000000 syz-executor 11462 187354 27373 -1 3 0x10 vmmaplk syz-executor 11462 248111 27373 -1 3 0x4000090 ttyin syz-executor 11462 185376 27373 -1 2 0x4000010 syz-executor 73190 201456 28805 0 2 0x82000 syz-executor 73190 421075 28805 0 3 0x4002000 suspend syz-executor 36569 342878 50750 0 2 0 syz-executor 36569 499425 50750 0 3 0x4000080 fsleep syz-executor 77055 202801 23537 0 2 0 syz-executor 77055 76282 23537 0 3 0x4000080 pipewr syz-executor *77055 411904 23537 0 7 0x4000000 syz-executor 77055 317127 23537 0 3 0x4000080 fsleep syz-executor 74008 395138 5766 0 2 0x1 syz-executor 74008 353488 5766 0 3 0x4000080 fsleep syz-executor 92590 238595 90332 0 3 0x82 nanoslp syz-executor 50750 400689 90332 0 3 0x82 nanoslp syz-executor 8345 255857 90332 0 3 0x82 nanoslp syz-executor 23537 161698 90332 0 3 0x82 nanoslp syz-executor 28805 420136 90332 0 3 0x82 nanoslp syz-executor 5766 799 90332 0 3 0x82 nanoslp syz-executor 27373 317428 90332 0 3 0x82 nanoslp syz-executor 66538 119299 90332 0 3 0x82 nanoslp syz-executor 90332 85772 50498 0 3 0x82 kqread syz-executor 50498 523811 40626 0 3 0x10008a sigsusp ksh 40626 94204 35259 0 3 0x98 kqread sshd-session 35259 96232 68137 0 3 0x92 kqread sshd-session 25861 165122 1 0 3 0x100083 ttyin getty 68137 131555 1 0 3 0x88 kqread sshd 19921 392644 40001 73 3 0x1100090 kqread syslogd 40001 255820 1 0 3 0x100082 sbwait syslogd 59980 437465 1 0 3 0x100080 kqread resolvd 78511 120615 21153 77 3 0x100092 kqread dhcpleased 31433 445171 21153 77 3 0x100092 kqread dhcpleased 21153 19475 1 0 3 0x80 kqread dhcpleased 71862 447952 0 0 3 0x14200 bored smr 10604 19586 0 0 2 0x14200 zerothread 76286 222086 0 0 3 0x14200 aiodoned aiodoned 5221 366213 0 0 3 0x14200 syncer update 91570 486218 0 0 3 0x14200 cleaner cleaner 80474 187413 0 0 3 0x14200 reaper reaper 2128 339766 0 0 3 0x14200 pgdaemon pagedaemon 95605 148121 0 0 3 0x14200 bored viomb 70669 47932 0 0 3 0x40014200 acpi0 acpi0 34669 496520 0 0 3 0x14200 bored softnet0 97101 31994 0 0 3 0x14200 bored systqmp 69859 386745 0 0 3 0x14200 bored systq 8074 482236 0 0 3 0x40014200 tmoslp softclock 79076 138906 0 0 3 0x40014200 idle0 1 320916 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 10213 11194K 11972K 166960K 15353 0 pcb 18 18K 22K 166960K 559 0 rtable 262 12K 12K 166960K 679 0 pf 35 14K 19K 166960K 253 0 ifaddr 44 8K 9K 166960K 148 0 ifgroup 54 2K 2K 166960K 265 0 sysctl 4 1K 9K 166960K 17 0 counters 34 17K 18K 166960K 245 0 ioctlops 0 0K 4K 166960K 536 0 iov 0 0K 24K 166960K 113 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1648 103K 104K 166960K 3762 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 4 9K 13K 166960K 34 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 99 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 236K 166960K 1746 0 sigio 1 0K 0K 166960K 42 0 proc 62 59K 75K 166960K 740 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 399 0 in_multi 99 7K 7K 166960K 207 0 ether_multi 1 0K 0K 166960K 20 0 mrt 1 0K 0K 166960K 17 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 784 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 252 161K 176K 166960K 17162 0 UVM aobj 25 18K 18K 166960K 34 0 pinsyscall 39 78K 90K 166960K 2912 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 123 0 NDP 12 0K 2K 166960K 102 0 temp 75 8672K 8744K 166960K 92613 0 kqueue 14 22K 31K 166960K 329 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 120 256 0 253 3 2 1 3 0 8 0 rtentry 136 194 0 90 4 0 4 4 0 8 0 unpcb 144 1567 0 1550 7 5 2 6 0 8 1 syncache 336 14 0 14 2 1 1 1 0 8 1 tcpqe 32 8 0 8 2 1 1 1 0 8 1 tcpcb 736 1007 0 999 8 4 4 7 0 8 1 arp 96 30 0 13 1 0 1 1 0 8 0 ipq 40 8 0 1 1 0 1 1 0 8 0 ipqe 40 11 0 2 1 0 1 1 0 8 0 inpcb 328 2648 0 2636 18 13 5 13 0 8 2 ip6q 72 4 0 2 1 0 1 1 0 8 0 ip6af 40 7 0 4 1 0 1 1 0 8 0 nd6 112 39 0 14 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 mppekey 1024 3 0 3 1 1 0 1 0 8 0 ppxss 1072 186 0 186 2 1 1 1 0 8 1 pppxif 1384 15 0 15 2 1 1 1 0 8 1 pfrktable 1344 2 0 2 1 1 0 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1344 3 0 3 2 1 1 1 0 8 1 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 797 0 340 31 2 29 31 0 8 0 art_table 40 799 0 340 5 0 5 5 0 8 0 art_node 32 194 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 49 0 9 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 93 0 83 1 0 1 1 0 8 0 shmpl 112 17 0 3 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 4720 0 3220 95 0 95 95 0 8 0 ffsino 256 4720 0 3220 95 0 95 95 0 8 0 nchpl 144 7134 0 5434 64 0 64 64 0 8 0 rtmask 32 23 0 23 2 1 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 vnodes: pool(0xffffffff838b1118:vnodes): page inconsistency: page 0x0; at page head addr 0xfffffd8077102f90 (p 0xfffffd8077102000) namei 1024 26379 0 26378 3 2 1 2 0 8 0 vcpupl 3904 10 0 2 2 0 2 2 0 8 0 vmpool 800 14 0 6 1 0 1 1 0 8 0 kstatmem 264 160 0 136 3 1 2 3 0 8 0 scsiplug 72 7 0 7 2 1 1 1 0 8 1 scxspl 216 24677 0 24677 9 7 2 8 1 8 2 plimitpl 152 437 0 417 1 0 1 1 0 8 0 sigapl 424 2024 0 1981 6 0 6 6 0 8 0 knotepl 120 646698 0 646651 28 19 9 22 0 8 6 kqueuepl 184 640 0 629 4 3 1 4 0 8 0 pipepl 304 470 0 440 8 5 3 8 0 8 0 fdescpl 448 2002 0 1972 4 0 4 4 0 8 0 filepl 120 15928 0 15605 16 6 10 15 0 8 0 lockfpl 104 727 0 723 2 1 1 2 0 8 0 lockfspl 48 321 0 317 1 0 1 1 0 8 0 sessionpl 144 30 0 22 1 0 1 1 0 8 0 pgrppl 48 62 0 46 1 0 1 1 0 8 0 ucredpl 104 2884 0 2871 1 0 1 1 0 8 0 zombiepl 144 2123 0 2123 1 0 1 1 0 8 1 processpl 1152 2024 0 1981 4 0 4 4 0 8 0 procpl 664 4392 0 4336 7 1 6 6 0 8 0 sosppl 176 4 0 4 1 1 0 1 0 8 0 sockpl 552 4601 0 4569 15 9 6 13 0 8 1 mcl64k 65536 282 0 281 4 1 3 3 0 8 2 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 19 0 19 2 1 1 1 0 8 1 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 28 0 28 2 1 1 1 0 8 1 mcl4k 4096 4683 0 4627 16 8 8 16 0 8 0 mcl2k2 2112 4 0 4 1 1 0 1 0 8 0 mcl2k 2048 3070 0 3059 5 2 3 5 0 8 1 mtagpl 96 372 0 91 7 0 7 7 0 8 0 mbufpl 256 29207 0 28728 374 343 31 278 0 8 0 bufpl 280 9119 0 2898 445 0 445 445 0 8 0 anonpl 24 270327 0 257475 137 22 115 137 0 187 0 amapchunkpl 152 57961 0 57305 40 0 40 40 0 158 13 amappl16 200 5165 0 4662 55 11 44 55 0 8 0 amappl15 192 1 0 1 1 1 0 1 0 8 0 amappl14 184 3 0 2 1 0 1 1 0 8 0 amappl13 176 456 0 455 1 0 1 1 0 8 0 amappl12 168 2373 0 2334 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 52 0 42 1 0 1 1 0 8 0 amappl9 144 257 0 257 1 1 0 1 0 8 0 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 86 0 84 1 0 1 1 0 8 0 amappl6 120 305 0 291 1 0 1 1 0 8 0 amappl5 112 72 0 64 1 0 1 1 0 8 0 amappl4 104 422 0 398 1 0 1 1 0 8 0 amappl3 96 10229 0 10131 3 0 3 3 0 8 0 amappl2 88 2160 0 2088 2 0 2 2 0 8 0 amappl1 80 17186 0 16638 13 0 13 13 0 8 0 amappl 88 16101 0 15918 5 0 5 5 0 92 0 uvmvnodes 80 151 0 0 4 0 4 4 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 6 0 6 1 1 0 1 0 8 0 dma128 128 256 0 256 2 1 1 1 0 8 1 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 33 0 9 1 0 1 1 0 8 0 uaddrrnd 24 2002 0 1972 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2002 0 1972 1 0 1 1 0 8 0 vmmpekpl 168 17022 0 16980 3 0 3 3 0 8 0 vmmpepl 168 131577 0 129234 129 15 114 129 0 357 0 vmsppl 368 2001 0 1972 4 1 3 4 0 8 0 rwobjpl 40 34118 0 32595 21 1 20 21 0 8 0 pdppl 4096 4038 0 3964 127 52 75 75 0 8 1 pvpl 32 837708 0 818249 239 33 206 239 0 265 0 pmappl 216 2015 0 1978 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 780 0 420 18 3 15 18 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace VOP_ISLOCKED(fffffd8077102dc0) at VOP_ISLOCKED+0x36 sys/kern/vfs_vops.c:67 getnewvnode(1,ffff800000b58800,ffffffff83496028,ffff80002a8168e0) at getnewvnode+0x1f8 sys/kern/vfs_subr.c:429 ffs_vget(ffff800000b58800,d30f,ffff80002a8169b0) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1207 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd800946b510,ffff80002a816e78,ffff80002a816ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a816e48) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a816e48) at namei+0x7ca sys/kern/vfs_lookup.c:250 ptm_vn_open(ffff80002a816e48) at ptm_vn_open+0x40 sys/kern/tty_pty.c:1014 ptmioctl(5100,40287401,ffff80002a817160,3,ffff800038d1c2c0) at ptmioctl+0x89d sys/kern/tty_pty.c:1179 VOP_IOCTL(fffffd806f2c5518,40287401,ffff80002a817160,3,fffffd8007bfd5b0,ffff800038d1c2c0) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8068005ea0,40287401,ffff80002a817160,ffff800038d1c2c0) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800038d1c2c0,ffff80002a817330,ffff80002a817280) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a817330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a817330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b87f67ec10, count: -14 ddb> machine ddbcpu 1 No such command ddb> trace VOP_ISLOCKED(fffffd8077102dc0) at VOP_ISLOCKED+0x36 sys/kern/vfs_vops.c:67 getnewvnode(1,ffff800000b58800,ffffffff83496028,ffff80002a8168e0) at getnewvnode+0x1f8 sys/kern/vfs_subr.c:429 ffs_vget(ffff800000b58800,d30f,ffff80002a8169b0) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1207 ufs_lookup() at ufs_lookup+0x16ad sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd800946b510,ffff80002a816e78,ffff80002a816ea8) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a816e48) at vfs_lookup+0x921 sys/kern/vfs_lookup.c:566 namei(ffff80002a816e48) at namei+0x7ca sys/kern/vfs_lookup.c:250 ptm_vn_open(ffff80002a816e48) at ptm_vn_open+0x40 sys/kern/tty_pty.c:1014 ptmioctl(5100,40287401,ffff80002a817160,3,ffff800038d1c2c0) at ptmioctl+0x89d sys/kern/tty_pty.c:1179 VOP_IOCTL(fffffd806f2c5518,40287401,ffff80002a817160,3,fffffd8007bfd5b0,ffff800038d1c2c0) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8068005ea0,40287401,ffff80002a817160,ffff800038d1c2c0) at vn_ioctl+0xea sys/kern/vfs_vnops.c:531 sys_ioctl(ffff800038d1c2c0,ffff80002a817330,ffff80002a817280) at sys_ioctl+0x660 sys/kern/sys_generic.c:-1 syscall(ffff80002a817330) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a817330) at syscall+0x962 sys/arch/amd64/amd64/trap.c:775 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9b87f67ec10, count: -14