witness: lock_object uninitialized: 0xffff800000d5c028 Starting stack trace... witness_checkorder(ffff800000d5c028,9,0) at witness_checkorder+0x133 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000d5c028,9,0) at witness_checkorder+0x133 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000d5c018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d5c000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000d5c000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1d28) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021233ce0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021233ce0,ffff800027bcf120,ffff800027bcf180) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800027bcf1f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027bcf1f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffed4a0, count: 249 End of stack trace. Stopped at db_enter+0x18: 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+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000d5c028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000d5c028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000d5c018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d5c000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000d5c000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1d28) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021233ce0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021233ce0,ffff800027bcf120,ffff800027bcf180) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800027bcf1f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027bcf1f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffed4a0, count: -9 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800027bceec0 rbx 0x3 rdx 0 rcx 0 rax 0xffff800021233ce0 r8 0xffff800027bcee60 r9 0x8080808080808080 r10 0x2ba9330935a3d267 r11 0x87e178d50382767a r12 0xffff800000d5c001 r13 0xffff800000d5c028 r14 0 r15 0 rip 0xffffffff81410c88 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800027bceeb0 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.3) pid=40095 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800021233500,0xffff800021233a50 process=0xffff8000211f1d28 user=0xffff800027bca000, vmspace=0xfffffd80679ad478 estcpu=36, cpticks=16, pctcpu=0.0 user=0, sys=8, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 22692 163408 93876 0 7 0 syz-executor.0 23502 158110 76371 0 2 0 syz-executor.2 23502 222423 76371 0 3 0x4000080 fsleep syz-executor.2 23502 430328 76371 0 3 0x4000080 fsleep syz-executor.2 76371 280463 31125 0 3 0x82 nanoslp syz-executor.2 99417 149776 31125 0 2 0x3 syz-executor.1 93876 240173 31125 0 3 0x82 nanoslp syz-executor.0 27864 189909 0 0 3 0x14200 acct acct 19494 505778 1 0 3 0x100083 ttyin getty 68153 267105 0 0 3 0x14200 bored sosplice 96734 119763 31125 0 3 0x82 nanoslp syz-executor.3 56001 312638 0 0 3 0x14280 nfsidl nfsio 87225 499892 0 0 3 0x14280 nfsidl nfsio 93354 26744 0 0 3 0x14280 nfsidl nfsio 31840 302310 0 0 3 0x14280 nfsidl nfsio 89575 37032 0 0 3 0x14280 nfsidl nfsio 1924 381739 0 0 3 0x14280 nfsidl nfsio 16064 164444 0 0 3 0x14280 nfsidl nfsio 96540 236008 0 0 3 0x14280 nfsidl nfsio 69030 120124 0 0 3 0x14280 nfsidl nfsio 60007 479692 0 0 3 0x14280 nfsidl nfsio 58270 269939 0 0 3 0x14280 nfsidl nfsio 46083 46511 0 0 3 0x14280 nfsidl nfsio 45949 381664 0 0 3 0x14280 nfsidl nfsio 15410 430640 0 0 3 0x14280 nfsidl nfsio 9072 23253 0 0 3 0x14280 nfsidl nfsio 44100 337939 0 0 3 0x14280 nfsidl nfsio 86758 13668 0 0 3 0x14280 nfsidl nfsio 90450 350639 0 0 3 0x14280 nfsidl nfsio 84069 217478 0 0 3 0x14280 nfsidl nfsio 14310 63672 0 0 3 0x14280 nfsidl nfsio 31125 100017 81882 0 3 0x82 thrsleep syz-fuzzer 31125 193151 81882 0 3 0x4000082 nanoslp syz-fuzzer 31125 242414 81882 0 3 0x4000082 thrsleep syz-fuzzer 31125 425680 81882 0 3 0x4000082 thrsleep syz-fuzzer 31125 5919 81882 0 3 0x4000082 thrsleep syz-fuzzer 31125 422886 81882 0 3 0x4000082 kqread syz-fuzzer 31125 163285 81882 0 3 0x4000082 thrsleep syz-fuzzer 31125 510843 81882 0 3 0x4000082 thrsleep syz-fuzzer 81882 326462 7630 0 3 0x10008a sigsusp ksh 7630 417180 84773 0 3 0x9a poll sshd 84773 68510 1 0 3 0x88 poll sshd 47705 360017 62659 74 3 0x100092 bpf pflogd 62659 518604 1 0 3 0x80 netio pflogd 61510 472765 17888 73 3 0x100090 kqread syslogd 17888 275764 1 0 3 0x100082 netio syslogd 18026 394192 1 0 3 0x100080 kqread resolvd 79475 221365 75070 77 3 0x100092 kqread dhcpleased 91723 332479 75070 77 3 0x100092 kqread dhcpleased 75070 209625 1 0 3 0x80 kqread dhcpleased 25072 164331 0 0 3 0x14200 bored smr 20420 36015 0 0 2 0x14200 zerothread 94278 517029 0 0 3 0x14200 aiodoned aiodoned 19163 3200 0 0 3 0x14200 syncer update 35094 200529 0 0 3 0x14200 cleaner cleaner 74684 199325 0 0 2 0x14200 reaper 9198 485789 0 0 3 0x14200 pgdaemon pagedaemon 88626 94846 0 0 3 0x14200 bored viomb 32638 501192 0 0 3 0x40014200 acpi0 acpi0 35064 89411 0 0 3 0x40014200 idle1 32625 264196 0 0 3 0x14200 bored softnet 62769 101913 0 0 3 0x14200 bored systqmp 62056 228160 0 0 3 0x14200 bored systq 59174 171504 0 0 3 0x40014200 bored softclock 61538 14830 0 0 3 0x40014200 idle0 1 390903 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 22692 (syz-executor.0) thread 0xffff8000211bd7b0 (163408) exclusive rwlock amaplk r = 0 (0xfffffd8077689360) #0 witness_lock+0x44d #1 uvm_fault_check+0x3ca sys/uvm/uvm_fault.c:776 #2 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #3 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #4 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8079393018) #0 witness_lock+0x44d #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1746 #2 uvm_fault_check+0x3a sys/uvm/uvm_fault.c:676 #3 uvm_fault+0x102 sys/uvm/uvm_fault.c:602 #4 upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 #5 usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 #6 recall_trap+0x8 Process 74684 (reaper) thread 0xffff800021148fc0 (199325) exclusive rwlock kmmaplk r = 0 (0xffffffff8298b1a0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5458 #3 uvm_unmap+0x78 sys/uvm/uvm_map.c:2068 #4 uvm_uarea_free+0x35 sys/uvm/uvm_glue.c:287 #5 reaper+0x158 sys/kern/kern_exit.c:451 #6 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10214 6488K 10643K 78643K 24795 0 pcb 13 12K 14K 78643K 1284 0 rtable 141 16K 18K 78643K 2343 0 ifaddr 75 17K 18K 78643K 804 0 sysctl 2 0K 0K 78643K 5 0 counters 50 34K 35K 78643K 248 0 ioctlops 0 0K 8K 78643K 2835 0 iov 0 0K 28K 78643K 7479 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1421 89K 90K 78643K 6199 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 13K 78643K 88 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 806 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 8 25K 49K 78643K 9331 0 sigio 0 0K 0K 78643K 42 0 proc 79 111K 124K 78643K 1272 0 subproc 52 3K 11K 78643K 498 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 214 0 in_multi 43 3K 3K 78643K 707 0 ether_multi 1 0K 0K 78643K 112 0 mrt 1 0K 0K 78643K 77 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 295 1314K 1314K 78643K 295 0 exec 0 0K 2K 78643K 1492 0 pfkey data 0 0K 0K 78643K 5 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 412 559K 562K 78643K 120630 0 UVM aobj 87 8K 8K 78643K 90 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 381 0 NDP 10 0K 1K 78643K 200 0 temp 114 4214K 4306K 78643K 73709 0 kqueue 10 14K 20K 78643K 265 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 374 0 371 5 4 1 3 0 8 0 rtentry 112 686 0 637 2 0 2 2 0 8 0 unpcb 136 27859 0 27844 124 119 5 10 0 8 4 syncache 296 24 0 24 9 9 0 1 0 8 0 sackhl 24 1 0 1 1 1 0 1 0 8 0 tcpqe 32 8 0 8 4 4 0 1 0 8 0 tcpcb 736 2317 0 2313 96 91 5 13 0 8 4 arp 120 126 0 117 1 0 1 1 0 8 0 inpcb 304 6721 0 6714 106 97 9 9 0 8 8 rttmr 72 25 0 25 8 7 1 1 0 8 1 nd6 48 123 0 116 1 0 1 1 0 8 0 pkpcb 40 15 0 15 3 3 0 1 0 8 0 kcovpl 48 28 0 24 1 0 1 1 0 8 0 ppxss 1248 28 0 28 5 5 0 1 0 8 0 pfstscr 40 32 0 32 5 5 0 1 0 8 0 pffrag 232 27 0 24 4 3 1 1 0 482 0 pffrnode 88 27 0 24 4 3 1 1 0 8 0 pffrent 40 250 0 247 4 3 1 1 0 8 0 pfosfp 40 1434 0 1433 6 5 1 5 0 8 0 pfosfpen 112 1434 0 1433 22 21 1 21 0 8 0 pfrktable 1344 277 0 269 5 4 1 1 0 8 0 pftag 88 23 0 20 2 1 1 1 0 8 0 pfqueue 264 9 0 4 1 0 1 1 0 8 0 pfstitem 24 45 0 43 1 0 1 1 0 8 0 pfstkey 112 113 0 111 1 0 1 1 0 8 0 pfstate 320 96 0 94 2 1 1 2 0 8 0 pfrule 1360 528 0 497 4 1 3 3 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3115 0 2899 33 19 14 19 0 8 0 art_table 32 3116 0 2899 4 1 3 3 0 8 0 art_node 16 685 0 642 1 0 1 1 0 8 0 sysvmsgpl 40 42 0 20 1 0 1 1 0 8 0 semapl 112 804 0 794 1 0 1 1 0 8 0 shmpl 112 87 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12955 0 11518 90 0 90 90 0 8 0 ffsino 272 12955 0 11518 96 0 96 96 0 8 0 nchpl 144 24558 0 22956 61 0 61 61 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 79871 0 79871 3 2 1 1 0 8 1 percpumem 16 136 0 99 1 0 1 1 0 8 0 vcpupl 2048 100 0 1 13 0 13 13 0 8 0 vmpool 560 142 0 43 8 0 8 8 0 8 0 pfiaddrpl 120 82 0 76 8 7 1 1 0 8 0 scxspl 216 75444 0 75444 16 12 4 8 0 8 4 plimitpl 152 799 0 788 1 0 1 1 0 8 0 sigapl 424 9521 0 9463 7 0 7 7 0 8 0 futexpl 64 84606 0 84604 4 3 1 1 0 8 0 knotepl 112 149 0 0 3 0 3 3 0 8 0 kqueuepl 216 1331 0 1322 32 31 1 5 0 8 0 pipepl 336 1330 0 1313 32 30 2 7 0 8 0 fdescpl 496 9484 0 9463 5 2 3 4 0 8 0 filepl 152 73717 0 73563 152 140 12 20 0 8 6 lockfpl 104 2285 0 2282 5 4 1 2 0 8 0 lockfspl 48 680 0 677 1 0 1 1 0 8 0 sessionpl 144 45 0 32 1 0 1 1 0 8 0 pgrppl 48 137 0 124 1 0 1 1 0 8 0 ucredpl 96 6015 0 6000 1 0 1 1 0 8 0 zombiepl 144 15096 0 15095 2 1 1 1 0 8 0 processpl 1064 9521 0 9463 4 0 4 4 0 8 0 procpl 672 26740 0 26672 10 3 7 7 0 8 0 srpgc 96 28 0 28 7 7 0 1 0 8 0 sosppl 168 71 0 71 15 15 0 1 0 8 0 sockpl 480 34972 0 34947 718 702 16 45 0 8 12 mcl64k 65536 34 0 0 3 0 3 3 0 8 0 mcl16k 16384 25 0 0 4 1 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 31 0 0 2 0 2 2 0 8 0 mcl8k 8192 33 0 0 4 1 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 mcl2k 2048 285 0 0 21 1 20 21 0 8 0 mtagpl 96 718 0 0 10 0 10 10 0 8 0 mbufpl 256 1430 0 0 62 0 62 62 0 8 0 bufpl 288 19903 0 13559 454 0 454 454 0 8 0 anonpl 24 2755148 0 2734708 302 173 129 200 0 186 0 amapchunkpl 152 302472 0 301667 119 86 33 62 0 158 0 amappl16 200 24558 0 23859 119 81 38 52 0 8 1 amappl15 192 3455 0 3453 1 0 1 1 0 8 0 amappl14 184 990 0 985 1 0 1 1 0 8 0 amappl13 176 2665 0 2660 1 0 1 1 0 8 0 amappl12 168 671 0 668 1 0 1 1 0 8 0 amappl11 160 1797 0 1783 1 0 1 1 0 8 0 amappl10 152 202 0 193 1 0 1 1 0 8 0 amappl9 144 487 0 485 1 0 1 1 0 8 0 amappl8 136 1091 0 1010 3 0 3 3 0 8 0 amappl7 128 335 0 324 1 0 1 1 0 8 0 amappl6 120 327 0 302 1 0 1 1 0 8 0 amappl5 112 7496 0 7475 1 0 1 1 0 8 0 amappl4 104 4217 0 4190 1 0 1 1 0 8 0 amappl3 96 3037 0 3017 1 0 1 1 0 8 0 amappl2 88 3783 0 3729 3 1 2 2 0 8 0 amappl1 80 176314 0 175813 16 4 12 13 0 8 0 amappl 88 119622 0 119376 8 2 6 6 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 128 253 0 253 1 1 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 89 0 3 2 0 2 2 0 8 0 uaddrrnd 24 9626 0 9505 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9626 0 9505 1 0 1 1 0 8 0 vmmpekpl 168 65785 0 65727 5 2 3 3 0 8 0 vmmpepl 168 871267 0 868792 333 207 126 132 0 357 13 vmsppl 368 9625 0 9505 14 2 12 12 0 8 1 rwobjpl 56 218941 0 211282 115 5 110 112 0 8 0 pdppl 4096 19260 0 19109 202 49 153 153 0 8 2 pvpl 32 4594342 0 4571676 479 284 195 314 0 265 2 pmappl 248 9625 0 9505 8 0 8 8 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 1141 0 199 28 0 28 28 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff827f3ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82993700) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82993700) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff800027bd57a0,ffff800000077500) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 kd_curproc sys/dev/kcov.c:571 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x28 sys/dev/kcov.c:143 __mp_lock(ffffffff82993700) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82993700) at __mp_lock+0x133 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff82993700) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82993700) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd8079393000,7958bd7d000,0,2) at uvm_fault+0x233 sys/uvm/uvm_fault.c:639 upageflttrap(ffff800027bd5c80,7958bd7d000) at upageflttrap+0x82 sys/arch/amd64/amd64/trap.c:181 usertrap(ffff800027bd5c80) at usertrap+0x1aa sys/arch/amd64/amd64/trap.c:403 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7fffffad80, count: -15 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:440 witness_checkorder(ffff800000d5c028,9,0) at witness_checkorder+0x138 witness_debugger sys/kern/subr_witness.c:2502 [inline] witness_checkorder(ffff800000d5c028,9,0) at witness_checkorder+0x138 sys/kern/subr_witness.c:772 rw_enter_write(ffff800000d5c018) at rw_enter_write+0x5b sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000d5c000) at unveil_delete_names+0x30 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:90 [inline] unveil_delete_names(ffff800000d5c000) at unveil_delete_names+0x30 sys/kern/kern_unveil.c:100 unveil_destroy(ffff8000211f1d28) at unveil_destroy+0xad sys/kern/kern_unveil.c:191 exit1(ffff800021233ce0,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:225 sys_exit(ffff800021233ce0,ffff800027bcf120,ffff800027bcf180) at sys_exit+0x16 sys/kern/kern_exit.c:95 syscall(ffff800027bcf1f0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800027bcf1f0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffed4a0, count: -9