witness: lock_object uninitialized: 0xffff8000014b8030 Starting stack trace... witness_checkorder(ffff8000014b8030,9,0) at witness_checkorder+0x1af witness_debugger sys/kern/subr_witness.c:2522 [inline] witness_checkorder(ffff8000014b8030,9,0) at witness_checkorder+0x1af sys/kern/subr_witness.c:779 rw_do_enter_write(ffff8000014b8018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000014b8000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003c4f9920) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000ffff7738,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000ffff7738,ffff80003c4e07a0,ffff80003c4e06f0) at sys_exit+0x1a syscall(ffff80003c4e07a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4e07a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d99c6fb2620, count: 249 End of stack trace. Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000014b8030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000014b8018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000014b8000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003c4f9920) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000ffff7738,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000ffff7738,ffff80003c4e07a0,ffff80003c4e06f0) at sys_exit+0x1a syscall(ffff80003c4e07a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4e07a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d99c6fb2620, count: -9 ddb{1}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff80003c4e0430 rbx 0 rdx 0 rcx 0xffff8000ffff7738 rax 0xffff800029a9bff0 r8 0xffff80003c4e03d0 r9 0x8080808080808080 r10 0xffff80003c4e0320 r11 0xb8170376e9177d71 r12 0 r13 0x1 r14 0xffff8000014b8030 r15 0x3 rip 0xffffffff82edcdb5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4e0420 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=360491 pid=27105 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000ffff7738 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff8000ffff6028,0xffff8000ffff67e8 process=0xffff80003c4f9920 user=0xffff80003c4db000, vmspace=0xfffffd8063e08748 estcpu=36, cpticks=10, pctcpu=0.0, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40373 295227 98519 0 2 0 syz-executor 40373 185313 98519 0 3 0x4000080 fsleep syz-executor 1055 485421 61164 0 2 0 syz-executor 1055 358961 61164 0 3 0x4000080 pipewr syz-executor 67451 303383 50177 0 2 0 syz-executor 67451 403222 50177 0 3 0x4000080 fsleep syz-executor 52512 217391 29881 0 2 0 syz-executor 52512 455731 29881 0 3 0x4000080 fsleep syz-executor 61511 399306 98614 0 2 0 syz-executor 61511 211710 98614 0 3 0x4000080 fsleep syz-executor 99796 31360 38554 0 2 0 syz-executor 99796 378261 38554 0 7 0x4000000 syz-executor 99796 347719 38554 0 3 0x4000080 fsleep syz-executor 33372 440296 1 0 3 0x100083 ttyin getty 98519 334213 29880 0 3 0x82 nanoslp syz-executor 39400 464012 0 0 3 0x14200 bored sosplice 42564 238900 0 0 3 0x14280 nfsidl nfsio 73583 6849 0 0 3 0x14280 nfsidl nfsio 89295 369289 0 0 3 0x14280 nfsidl nfsio 7549 56598 0 0 3 0x14280 nfsidl nfsio 22200 317339 0 0 3 0x14280 nfsidl nfsio 15210 38423 0 0 3 0x14280 nfsidl nfsio 68254 399669 0 0 3 0x14280 nfsidl nfsio 42003 237673 0 0 3 0x14280 nfsidl nfsio 50367 297005 0 0 3 0x14280 nfsidl nfsio 54726 300166 0 0 3 0x14280 nfsidl nfsio 1451 485767 0 0 3 0x14280 nfsidl nfsio 27731 271688 0 0 3 0x14280 nfsidl nfsio 6868 18115 0 0 3 0x14280 nfsidl nfsio 20737 94318 0 0 3 0x14280 nfsidl nfsio 66160 285939 0 0 3 0x14280 nfsidl nfsio 95470 214108 0 0 3 0x14280 nfsidl nfsio 25118 103872 0 0 3 0x14280 nfsidl nfsio 77856 122709 0 0 3 0x14280 nfsidl nfsio 69553 313640 0 0 3 0x14280 nfsidl nfsio 72229 71993 0 0 3 0x14280 nfsidl nfsio 61164 105798 29880 0 3 0x82 nanoslp syz-executor 98614 228322 29880 0 3 0x82 nanoslp syz-executor 38554 478960 29880 0 3 0x82 nanoslp syz-executor 50177 236750 29880 0 3 0x82 nanoslp syz-executor 29881 38363 29880 0 3 0x82 nanoslp syz-executor 25460 456089 29880 0 3 0x82 wait syz-executor 71019 498436 29880 0 3 0x82 nanoslp syz-executor 29880 37190 4856 0 3 0x82 kqread syz-executor 4856 63994 84693 0 3 0x10008a sigsusp ksh 84693 448099 44547 0 3 0x98 kqread sshd-session 44547 174144 69439 0 3 0x92 kqread sshd-session 69439 480138 1 0 3 0x88 kqread sshd 67554 474264 97071 74 3 0x1100092 bpf pflogd 97071 70703 1 0 3 0x80 sbwait pflogd 1551 104424 88666 73 3 0x1100090 kqread syslogd 88666 233127 1 0 3 0x100082 sbwait syslogd 63143 339789 1 0 3 0x100080 kqread resolvd 89467 14295 30430 77 3 0x100092 kqread dhcpleased 50994 202330 30430 77 3 0x100092 kqread dhcpleased 30430 111394 1 0 3 0x80 kqread dhcpleased 84270 125306 0 0 3 0x14200 bored smr 38715 56035 0 0 2 0x14200 zerothread 12754 61405 0 0 3 0x14200 aiodoned aiodoned 83489 442706 0 0 3 0x14200 syncer update 88944 139426 0 0 3 0x14200 cleaner cleaner 3028 280321 0 0 3 0x14200 reaper reaper 16025 31289 0 0 3 0x14200 pgdaemon pagedaemon 11488 485250 0 0 3 0x14200 bored viomb 41678 53349 0 0 3 0x40014200 acpi0 acpi0 61278 23387 0 0 3 0x40014200 idle1 46789 305935 0 0 3 0x14200 bored softnet3 25126 223369 0 0 3 0x14200 bored softnet2 45735 394951 0 0 3 0x14200 bored softnet1 22671 129670 0 0 2 0x14200 softnet0 63204 16460 0 0 3 0x14200 bored systqmp 37675 201839 0 0 3 0x14200 bored systq 29484 410043 0 0 3 0x14200 tmoslp softclockmp 62417 30541 0 0 3 0x40014200 tmoslp softclock 43734 98784 0 0 3 0x40014200 idle0 1 469216 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 99796 (syz-executor) thread 0xffff80002a44a560 (378261) exclusive rrwlock inode r = 0 (0xfffffd8063731a78) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #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 vn_open+0x13f sys/kern/vfs_vnops.c:140 #8 doopenat+0x32e sys/kern/vfs_syscalls.c:1124 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 11177K 11588K 166960K 12627 0 pcb 17 14K 14K 166960K 208 0 rtable 192 11K 12K 166960K 466 0 pf 38 18K 20K 166960K 94 0 ifaddr 40 6K 8K 166960K 79 0 ifgroup 63 2K 2K 166960K 125 0 sysctl 3 1K 1K 166960K 3 0 counters 68 36K 37K 166960K 122 0 ioctlops 0 0K 4K 166960K 1651 0 iov 0 0K 26K 166960K 49 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1394 88K 88K 166960K 2063 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 22 0 VM map 2 1K 1K 166960K 2 0 sem 14 10K 10K 166960K 66 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 956 0 sigio 0 0K 0K 166960K 16 0 proc 76 115K 128K 166960K 672 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 0 0K 0K 166960K 153 0 in_multi 75 5K 7K 166960K 145 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 470 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 238 73K 87K 166960K 10497 0 UVM aobj 34 5K 5K 166960K 37 0 pinsyscall 43 86K 102K 166960K 2115 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 44 0 NDP 14 0K 2K 166960K 51 0 temp 52 8638K 8710K 166960K 43399 0 kqueue 15 20K 28K 166960K 176 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 98 0 94 1 0 1 1 0 8 0 rtentry 112 138 0 57 4 0 4 4 0 8 0 unpcb 144 491 0 474 2 1 1 2 0 8 0 syncache 336 9 0 9 3 3 0 1 0 8 0 tcpqe 32 4 0 4 2 2 0 1 0 8 0 tcpcb 808 314 0 306 10 8 2 8 0 8 0 arp 120 21 0 7 1 0 1 1 0 8 0 inpcb 376 1092 0 1078 17 15 2 11 0 8 0 nd6 136 29 0 9 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 1 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1168 19 0 19 2 2 0 1 0 8 0 pppxif 1472 4 0 4 2 2 0 1 0 8 0 pffrag 232 5 0 1 1 0 1 1 0 482 0 pffrnode 88 4 0 1 1 0 1 1 0 8 0 pffrent 40 12 0 8 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 69 0 15 1 0 1 1 0 8 0 pfstkey 128 69 0 15 2 0 2 2 0 8 0 pfstate 376 69 0 15 6 0 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 596 0 223 31 6 25 31 0 8 0 art_table 32 600 0 223 4 0 4 4 0 8 0 art_node 16 135 0 62 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 5 1 0 1 1 0 8 0 semapl 112 62 0 50 1 0 1 1 0 8 0 shmpl 112 34 0 3 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3013 0 1515 95 0 95 95 0 8 0 ffsino 280 3013 0 1515 109 0 109 109 0 8 0 nchpl 144 4385 0 2694 64 1 63 64 0 8 0 rtmask 32 2 0 2 2 2 0 1 0 8 0 uvmvnodes 80 3572 0 0 73 0 73 73 0 8 0 vnodes 216 3573 0 0 199 0 199 199 0 8 0 namei 1024 15250 0 15249 3 2 1 2 0 8 0 percpumem 16 75 0 27 1 0 1 1 0 8 0 kstatmem 264 64 0 36 3 1 2 3 0 8 0 scsiplug 72 4 0 4 2 2 0 1 0 8 0 scxspl 216 15598 0 15598 13 10 3 8 1 8 3 plimitpl 152 231 0 214 1 0 1 1 0 8 0 sigapl 424 1277 0 1206 11 2 9 9 0 8 0 futexpl 64 13070 0 13065 1 0 1 1 0 8 0 knotepl 120 543 0 0 17 0 17 17 0 8 0 kqueuepl 216 330 0 320 6 3 3 3 0 8 2 pipepl 328 208 0 180 3 0 3 3 0 8 0 fdescpl 504 1238 0 1207 5 0 5 5 0 8 0 filepl 152 7335 0 7109 23 12 11 17 0 8 1 lockfpl 104 490 0 488 3 2 1 2 0 8 0 lockfspl 48 123 0 121 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 48 0 31 1 0 1 1 0 8 0 ucredpl 104 905 0 890 1 0 1 1 0 8 0 zombiepl 144 1215 0 1213 2 1 1 1 0 8 0 processpl 1168 1277 0 1206 6 0 6 6 0 8 0 procpl 656 2634 0 2556 9 1 8 8 0 8 0 srpgc 96 6 0 6 3 3 0 1 0 8 0 sosppl 168 16 0 16 2 2 0 1 0 8 0 sockpl 688 1698 0 1663 19 15 4 13 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 123 0 0 16 0 16 16 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 48 0 0 2 0 2 2 0 8 0 mbufpl 256 236 0 0 15 0 15 15 0 8 0 bufpl 280 6038 0 140 422 0 422 422 0 8 0 anonpl 24 172371 0 168001 74 30 44 74 0 184 0 amapchunkpl 152 33166 0 32592 32 7 25 28 0 158 1 amappl16 200 3130 0 3086 28 20 8 27 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 3 0 2 1 0 1 1 0 8 0 amappl12 168 1919 0 1887 3 1 2 2 0 8 0 amappl11 160 91 0 76 1 0 1 1 0 8 0 amappl10 152 6 0 5 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 123 0 109 1 0 1 1 0 8 0 amappl6 120 199 0 196 1 0 1 1 0 8 0 amappl5 112 131 0 122 1 0 1 1 0 8 0 amappl4 104 353 0 334 1 0 1 1 0 8 0 amappl3 96 6765 0 6646 4 0 4 4 0 8 0 amappl2 88 745 0 680 2 0 2 2 0 8 0 amappl1 80 11910 0 11338 14 0 14 14 0 8 0 amappl 88 10016 0 9833 5 0 5 5 0 92 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 128 254 0 254 2 2 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 36 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1238 0 1206 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1238 0 1206 1 0 1 1 0 8 0 vmmpekpl 168 11583 0 11535 3 0 3 3 0 8 0 vmmpepl 168 81451 0 79510 106 16 90 105 0 357 0 vmsppl 456 1237 0 1206 6 1 5 5 0 8 0 rwobjpl 64 27310 0 22745 75 1 74 74 0 8 0 pdppl 4096 2484 0 2412 110 38 72 86 0 8 0 pvpl 32 19914 0 0 161 0 161 161 0 265 0 pmappl 248 1237 0 1206 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 313 0 61 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff83791ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80003b0c15a0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838e3cd8) at __mp_lock+0x192 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff838e3cd8,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x4b7 sys/kern/sched_bsd.c:441 yield() at yield+0x6a sys/kern/sched_bsd.c:320 pool_get(ffffffff839bd258,9) at pool_get+0x265 sys/kern/subr_pool.c:593 getnewvnode(1,ffff800000b49800,ffffffff836228f8,ffff80003b0c1a10) at getnewvnode+0x11a sys/kern/vfs_subr.c:427 ffs_vget(ffff800000b49800,1e1,ffff80003b0c1af8) at ffs_vget+0xc3 sys/ufs/ffs/ffs_vfsops.c:1205 ufs_lookup() at ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 VOP_LOOKUP(fffffd80615437a0,ffff80003b0c1f48,ffff80003b0c1f78) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80003b0c1f18) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80003b0c1f18) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80003b0c1f18,1,0) at vn_open+0x13f sys/kern/vfs_vnops.c:140 doopenat(ffff80002a44a560,ffffff9c,400000000000,0,0,ffff80003b0c20c0) at doopenat+0x32e sys/kern/vfs_syscalls.c:1124 syscall(ffff80003b0c2170) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003b0c2170) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xaa13f1c0880, count: -24 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff8000014b8030,9,0) at witness_checkorder+0x1b4 rw_do_enter_write(ffff8000014b8018,0) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 unveil_delete_names(ffff8000014b8000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff80003c4f9920) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000ffff7738,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000ffff7738,ffff80003c4e07a0,ffff80003c4e06f0) at sys_exit+0x1a syscall(ffff80003c4e07a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4e07a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d99c6fb2620, count: -9