witness: lock_object uninitialized: 0xffff800000e0b028 Starting stack trace... witness_checkorder(ffff800000e0b028,9,0) at witness_checkorder+0x137 witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e0b028,9,0) at witness_checkorder+0x137 sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e0b018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e0b000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e0b000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff0498) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002a1dbd60,0,0,1) at exit1+0x3d8 sys/kern/kern_exit.c:218 sys_exit(ffff80002a1dbd60,ffff80002a3b0bb0,ffff80002a3b0b00) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a3b0bb0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a3b0bb0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ea5fb66e900, count: 249 End of stack trace. Stopped at db_enter+0x1c: 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000e0b028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e0b028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e0b018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e0b000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e0b000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff0498) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002a1dbd60,0,0,1) at exit1+0x3d8 sys/kern/kern_exit.c:218 sys_exit(ffff80002a1dbd60,ffff80002a3b0bb0,ffff80002a3b0b00) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a3b0bb0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a3b0bb0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ea5fb66e900, count: -9 ddb{1}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff80002a3b0870 rbx 0x3 rdx 0 rcx 0xffff80002a1dbd60 rax 0xffff800029cfbff0 r8 0xffff80002a3b0810 r9 0x8080808080808080 r10 0xffff80002a3b0760 r11 0xb8d87a4427754c73 r12 0xffff800000e0b001 r13 0xffff800000e0b028 r14 0 r15 0 rip 0xffffffff811daa2c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a3b0860 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.5) tid=348464 pid=37557 tcnt=1 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a1dbd60 forw=0xffffffffffffffff, list=0xffff80002a1ced38,0xffff80002a33cd58 process=0xffff8000ffff0498 user=0xffff80002a3ab000, vmspace=0xfffffd807582cab0 estcpu=36, cpticks=20, pctcpu=0.0, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 47483 135609 47457 0 7 0x100002 sh 58296 424873 69315 0 2 0x101004 sh 92932 160517 86769 0 2 0x2 arp 86769 492214 29972 0 3 0x10008a sigsusp sh 69315 343009 61453 0 3 0x10008a sigsusp sh 29173 336091 25192 0 2 0 syz-executor.1 29173 316737 25192 0 2 0x4000000 syz-executor.1 29173 197216 25192 0 2 0x4000000 syz-executor.1 35375 440038 78328 0 3 0x80 nanoslp syz-executor.6 35375 487041 78328 0 3 0x4000080 fsleep syz-executor.6 35375 362404 78328 0 2 0x4000000 syz-executor.6 17428 470163 55326 0 2 0x2 ifconfig 78328 10164 31206 0 3 0x82 nanoslp syz-executor.6 55326 144743 24783 0 3 0x10008a sigsusp sh 61453 174448 31206 0 3 0x82 wait syz-executor.4 537 229949 33602 0 3 0x100082 netio arp 33602 136481 12015 0 3 0x10008a sigsusp sh 67823 145984 31206 0 3 0x82 nanoslp syz-executor.5 12015 343936 31206 0 3 0x82 wait syz-executor.2 29972 169463 31206 0 3 0x82 wait syz-executor.3 47457 435644 31206 0 3 0x82 wait syz-executor.7 24783 208516 31206 0 3 0x82 wait syz-executor.0 25192 229130 31206 0 3 0x82 nanoslp syz-executor.1 31206 95493 38397 0 3 0x2000082 wait syz-execprog 31206 154145 38397 0 3 0x6000082 thrsleep syz-execprog 31206 282631 38397 0 3 0x6000082 wait syz-execprog 31206 293728 38397 0 3 0x6000082 thrsleep syz-execprog 31206 113274 38397 0 3 0x6000082 wait syz-execprog 31206 350480 38397 0 3 0x6000082 wait syz-execprog 31206 83925 38397 0 3 0x6000082 thrsleep syz-execprog 31206 96828 38397 0 3 0x6000082 wait syz-execprog 31206 133887 38397 0 3 0x6000082 wait syz-execprog 31206 109595 38397 0 3 0x6000082 wait syz-execprog 31206 141608 38397 0 3 0x6000082 thrsleep syz-execprog 31206 338688 38397 0 3 0x6000082 wait syz-execprog 31206 397979 38397 0 3 0x6000082 thrsleep syz-execprog 31206 321995 38397 0 3 0x6000082 kqread syz-execprog 31206 522976 38397 0 3 0x6000082 thrsleep syz-execprog 38397 323718 85395 0 3 0x10008a sigsusp ksh 85395 412829 9574 0 3 0x9a kqread sshd 95813 111552 1 0 3 0x100083 ttyin getty 9574 521694 1 0 3 0x88 kqread sshd 75934 153530 25562 74 3 0x1100092 bpf pflogd 25562 426914 1 0 3 0x80 netio pflogd 16585 358291 22648 73 3 0x1100090 kqread syslogd 22648 228094 1 0 3 0x100082 netio syslogd 95760 229582 1 0 3 0x100080 kqread resolvd 22507 107527 94577 77 3 0x100092 kqread dhcpleased 5792 35148 94577 77 3 0x100092 kqread dhcpleased 94577 43221 1 0 3 0x80 kqread dhcpleased 64880 492046 0 0 3 0x14200 bored smr 25610 192500 0 0 2 0x14200 zerothread 37054 133203 0 0 3 0x14200 aiodoned aiodoned 58220 429915 0 0 3 0x14200 syncer update 40335 311629 0 0 3 0x14200 cleaner cleaner 21867 244167 0 0 2 0x14200 reaper 5270 324876 0 0 3 0x14200 pgdaemon pagedaemon 62287 24526 0 0 3 0x14200 bored viomb 73644 344424 0 0 3 0x40014200 acpi0 acpi0 35459 297463 0 0 3 0x40014200 idle1 22688 91973 0 0 3 0x14200 bored softnet3 49809 220815 0 0 3 0x14200 bored softnet2 14846 219527 0 0 3 0x14200 bored softnet1 13788 200946 0 0 3 0x14200 bored softnet0 49506 392002 0 0 3 0x14200 bored systqmp 59720 57022 0 0 3 0x14200 bored systq 80866 257253 0 0 3 0x14200 tmoslp softclockmp 92271 512491 0 0 3 0x40014200 tmoslp softclock 259 506059 0 0 3 0x40014200 idle0 1 192032 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 92932 (arp) thread 0xffff80002a33c550 (160517) exclusive rwlock vmmaplk r = 0 (0xfffffd807582cd68) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5369 #3 uvmfault_lookup+0xb6 sys/uvm/uvm_fault.c:1779 #4 uvm_fault_check+0x65d uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #4 uvm_fault_check+0x65d sys/uvm/uvm_fault.c:710 #5 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #6 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 29173 (syz-executor.1) thread 0xffff80002a22b2b0 (316737) exclusive rwlock unveil r = 0 (0xffff800000e15028) #0 witness_lock+0x447 #1 unveil_add+0x324 unveil_add_name sys/kern/kern_unveil.c:135 [inline] #1 unveil_add+0x324 sys/kern/kern_unveil.c:514 #2 sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023 #3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 29173 (syz-executor.1) thread 0xffff80002a33c000 (197216) exclusive rwlock vmmaplk r = 0 (0xfffffd80758f9830) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5369 #3 uvmfault_lookup+0xb6 sys/uvm/uvm_fault.c:1779 #4 uvm_fault_check+0x65d uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #4 uvm_fault_check+0x65d sys/uvm/uvm_fault.c:710 #5 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #6 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 35375 (syz-executor.6) thread 0xffff80002a1ced38 (362404) exclusive rwlock unveil r = 0 (0xffff800000e03028) #0 witness_lock+0x447 #1 unveil_add+0x324 unveil_add_name sys/kern/kern_unveil.c:135 [inline] #1 unveil_add+0x324 sys/kern/kern_unveil.c:514 #2 sys_unveil+0x41c sys/kern/vfs_syscalls.c:1023 #3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 Process 21867 (reaper) thread 0xffff80002a155aa8 (244167) exclusive rwlock kmmaplk r = 0 (0xffffffff82daef60) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5369 #3 uvm_unmap+0x7c sys/uvm/uvm_map.c:1855 #4 uvm_uarea_free+0x39 sys/uvm/uvm_glue.c:288 #5 reaper+0x168 sys/kern/kern_exit.c:452 #6 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10179 6474K 6474K 166960K 11260 0 pcb 15 10K 10K 166960K 15 0 rtable 178 5K 5K 166960K 294 0 pf 32 9K 10K 166960K 46 0 ifaddr 38 13K 13K 166960K 44 0 ifgroup 55 2K 2K 166960K 60 0 counters 64 36K 36K 166960K 66 0 ioctlops 0 0K 4K 166960K 1481 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1189 74K 74K 166960K 1205 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 21 77K 93K 166960K 144 0 proc 81 151K 163K 166960K 553 0 subproc 0 0K 0K 166960K 13 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 68 5K 5K 166960K 79 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 1 0K 1K 166960K 403 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 279 76K 76K 166960K 4471 0 UVM aobj 3 2K 2K 166960K 3 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 22 1K 1K 166960K 25 0 temp 2 6692K 6756K 166960K 4691 0 kqueue 12 18K 18K 166960K 34 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 28 0 24 1 0 1 1 0 8 0 rtentry 112 94 0 12 3 0 3 3 0 8 0 unpcb 144 47 0 32 1 0 1 1 0 8 0 syncache 320 8 0 8 2 2 0 1 0 8 0 tcpqe 32 323 0 323 2 2 0 1 0 8 0 tcpcb 808 12 0 8 1 0 1 1 0 8 0 arp 120 17 0 2 1 0 1 1 0 8 0 inpcb 376 68 0 61 1 0 1 1 0 8 0 nd6 136 16 0 3 2 1 1 1 0 8 0 kcovpl 48 1 0 1 1 1 0 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 21 0 4 1 0 1 1 0 8 0 pfstkey 128 21 0 4 1 0 1 1 0 8 0 pfstate 376 21 0 4 2 0 2 2 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 373 0 48 24 3 21 21 0 8 0 art_table 32 374 0 48 4 1 3 3 0 8 0 art_node 16 93 0 18 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1519 0 75 91 0 91 91 0 8 0 ffsino 272 1519 0 75 97 0 97 97 0 8 0 nchpl 144 1812 0 114 63 0 63 63 0 8 0 uvmvnodes 80 1546 0 0 32 0 32 32 0 8 0 vnodes 216 1546 0 0 86 0 86 86 0 8 0 namei 1024 7331 0 7323 5 3 2 2 0 8 0 percpumem 16 47 0 1 1 0 1 1 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 7771 0 7771 10 9 1 8 1 8 1 plimitpl 152 50 0 34 1 0 1 1 0 8 0 sigapl 424 483 0 430 8 1 7 7 0 8 0 futexpl 64 17 0 16 2 1 1 1 0 8 0 knotepl 120 114 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 186 0 158 5 2 3 3 0 8 0 fdescpl 496 465 0 431 6 1 5 5 0 8 0 filepl 152 2105 0 1971 7 1 6 6 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 33 0 16 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 98 0 86 1 0 1 1 0 8 0 zombiepl 144 432 0 431 2 1 1 1 0 8 0 processpl 1136 483 0 430 6 1 5 5 0 8 0 procpl 680 518 0 446 8 1 7 7 0 8 0 sockpl 584 143 0 117 4 1 3 3 0 8 1 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 322 0 0 38 0 38 38 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 338 0 0 20 0 20 20 0 8 0 bufpl 280 4939 0 138 343 0 343 343 0 8 0 anonpl 24 378972 0 374063 65 34 31 55 0 186 1 amapchunkpl 152 17225 0 16560 41 15 26 26 0 158 0 amappl16 200 11608 0 11542 8 3 5 5 0 8 0 amappl15 192 41 0 40 2 1 1 1 0 8 0 amappl14 184 214 0 199 3 2 1 2 0 8 0 amappl13 176 84 0 83 1 0 1 1 0 8 0 amappl12 168 1174 0 1135 6 3 3 3 0 8 1 amappl11 160 90 0 75 1 0 1 1 0 8 0 amappl10 152 58 0 49 2 1 1 1 0 8 0 amappl9 144 443 0 442 2 1 1 1 0 8 0 amappl8 136 256 0 228 3 1 2 2 0 8 0 amappl7 128 253 0 231 4 2 2 3 0 8 0 amappl6 120 302 0 284 1 0 1 1 0 8 0 amappl5 112 188 0 177 1 0 1 1 0 8 0 amappl4 104 654 0 627 3 2 1 2 0 8 0 amappl3 96 3596 0 3501 7 4 3 3 0 8 0 amappl2 88 1065 0 984 4 2 2 3 0 8 0 amappl1 80 14589 0 13974 32 18 14 23 0 8 1 amappl 88 3804 0 3611 7 2 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 128 253 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 466 0 431 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 466 0 431 1 0 1 1 0 8 0 vmmpekpl 168 13969 0 13939 2 0 2 2 0 8 0 vmmpepl 168 68345 0 66452 127 42 85 116 0 357 0 vmsppl 448 465 0 431 8 3 5 5 0 8 0 rwobjpl 56 33486 0 30765 53 9 44 46 0 8 0 pdppl 4096 939 0 862 131 52 79 83 0 8 2 pvpl 32 42179 0 0 342 1 341 341 0 265 0 pmappl 248 465 0 431 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 436 0 65 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82cc0ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82dabf60) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dabf60) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a37ff20,ffff800000069c00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff82dabf60) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dabf60) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82dabf60) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82dabf60) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002a380250) at syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a380250) at syscall+0x51a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70c3ec708010, count: -12 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(ffff800000e0b028,9,0) at witness_checkorder+0x13c witness_debugger sys/kern/subr_witness.c:2510 [inline] witness_checkorder(ffff800000e0b028,9,0) at witness_checkorder+0x13c sys/kern/subr_witness.c:777 rw_enter_write(ffff800000e0b018) at rw_enter_write+0x5c sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff800000e0b000) at unveil_delete_names+0x34 unvname_rbt_RBT_MIN sys/kern/kern_unveil.c:92 [inline] unveil_delete_names(ffff800000e0b000) at unveil_delete_names+0x34 sys/kern/kern_unveil.c:102 unveil_destroy(ffff8000ffff0498) at unveil_destroy+0xad sys/kern/kern_unveil.c:183 exit1(ffff80002a1dbd60,0,0,1) at exit1+0x3d8 sys/kern/kern_exit.c:218 sys_exit(ffff80002a1dbd60,ffff80002a3b0bb0,ffff80002a3b0b00) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a3b0bb0) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a3b0bb0) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ea5fb66e900, count: -9