login: ./file0¾wÉ 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(ffff8000013c6028,9,0) at witness_checkorder+0x1b4 rw_enter_write(ffff8000013c6018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000013c6000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff800037254918) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000371f6548,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000371f6548,ffff80002a15c750,ffff80002a15c6a0) at sys_exit+0x1a syscall(ffff80002a15c750) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a15c750) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d4c63439780, count: -9 ddb{1}> show registers rdi 0 rsi 0x4000000000000000 rbp 0xffff80002a15c420 rbx 0 rdx 0 rcx 0xffff8000371f6548 rax 0xffff800029b7bff0 r8 0xffff80002a15c3c0 r9 0x8080808080808080 r10 0xffff80002a15c310 r11 0xf587608a29f66a07 r12 0 r13 0x1 r14 0xffff8000013c6028 r15 0x3 rip 0xffffffff812ecd15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a15c410 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=170004 pid=46711 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff8000371f6548 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80002a1171f8,0xffff8000371f6048 process=0xffff800037254918 user=0xffff80002a157000, vmspace=0xfffffd806bd0b8e8 estcpu=36, cpticks=18, pctcpu=0.8, user=0, sys=9, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 59710 41444 7790 0 2 0 syz-executor 59710 219748 7790 0 3 0x4000080 fsleep syz-executor 98878 494067 83118 0 2 0 syz-executor 98878 220607 83118 0 2 0x4000000 syz-executor 98878 384433 83118 0 3 0x4000080 fsleep syz-executor 98878 481554 83118 0 3 0x4000080 fsleep syz-executor 54051 41390 14359 0 2 0 syz-executor 54051 29007 14359 0 2 0x4000000 syz-executor 78136 5764 66388 0 2 0x1000000 syz-executor 78136 30411 66388 0 3 0x5000080 fsleep syz-executor 78136 274626 66388 0 2 0x5000000 syz-executor 78136 237792 66388 0 3 0x5000080 fsleep syz-executor 56112 375711 18608 0 4 0x82004 syz-executor 56112 167117 18608 0 2 0x4002004 syz-executor 56112 392783 18608 0 4 0x4082004 syz-executor 56112 161253 18608 0 4 0x4082004 syz-executor 84162 453451 1 0 3 0x100083 ttyin getty 66388 184892 75332 0 3 0x82 nanoslp syz-executor 18608 323863 75332 0 2 0x3 syz-executor 7790 163204 75332 0 3 0x82 nanoslp syz-executor 44400 237113 0 0 3 0x14280 nfsidl nfsio 42308 237081 0 0 3 0x14280 nfsidl nfsio 94314 462453 0 0 3 0x14280 nfsidl nfsio 88384 334365 0 0 3 0x14280 nfsidl nfsio 74243 57599 0 0 3 0x14280 nfsidl nfsio 87879 520158 0 0 3 0x14280 nfsidl nfsio 72325 493277 0 0 3 0x14280 nfsidl nfsio 97316 62719 0 0 3 0x14280 nfsidl nfsio 39486 61168 0 0 3 0x14280 nfsidl nfsio 84627 276797 0 0 3 0x14280 nfsidl nfsio 58384 297428 0 0 3 0x14280 nfsidl nfsio 72821 153478 0 0 3 0x14280 nfsidl nfsio 39781 365680 0 0 3 0x14280 nfsidl nfsio 65184 99709 0 0 3 0x14280 nfsidl nfsio 1595 192898 0 0 3 0x14280 nfsidl nfsio 91625 246204 0 0 3 0x14280 nfsidl nfsio 82835 121904 0 0 3 0x14280 nfsidl nfsio 37208 123778 0 0 3 0x14280 nfsidl nfsio 58073 75048 0 0 3 0x14280 nfsidl nfsio 56538 41104 0 0 3 0x14280 nfsidl nfsio 73778 376752 0 0 3 0x14200 bored sosplice 61841 405086 75332 0 3 0x82 nanoslp syz-executor 42229 288299 75332 0 3 0x2 biowait syz-executor 14359 464826 75332 0 3 0x82 nanoslp syz-executor 83118 220280 75332 0 3 0x82 nanoslp syz-executor 49781 238870 75332 0 2 0x3 syz-executor 75332 440776 13134 0 7 0x2 syz-executor 13134 194949 3575 0 3 0x10008a sigsusp ksh 3575 238386 97361 0 3 0x98 kqread sshd-session 97361 425146 62878 0 3 0x92 kqread sshd-session 62878 471002 1 0 3 0x88 kqread sshd 39732 264773 13510 74 3 0x1100092 bpf pflogd 13510 90775 1 0 3 0x80 sbwait pflogd 17742 420236 53982 73 3 0x1100090 kqread syslogd 53982 163941 1 0 3 0x100082 sbwait syslogd 72431 390335 1 0 3 0x100080 kqread resolvd 4399 511880 76048 77 3 0x100092 kqread dhcpleased 21824 392290 76048 77 3 0x100092 kqread dhcpleased 76048 354304 1 0 3 0x80 kqread dhcpleased 85926 298983 0 0 3 0x14200 bored smr 90503 136648 0 0 2 0x14200 zerothread 86543 285499 0 0 3 0x14200 aiodoned aiodoned 22877 38208 0 0 3 0x14200 syncer update 76284 405033 0 0 3 0x14200 cleaner cleaner 29606 272356 0 0 3 0x14200 reaper reaper 88629 465091 0 0 3 0x14200 pgdaemon pagedaemon 97474 235400 0 0 3 0x14200 bored viomb 94476 434399 0 0 3 0x40014200 acpi0 acpi0 48572 429900 0 0 3 0x40014200 idle1 35155 449246 0 0 3 0x14200 bored softnet3 84551 360365 0 0 3 0x14200 bored softnet2 55059 142835 0 0 3 0x14200 bored softnet1 27104 323044 0 0 3 0x14200 bored softnet0 78018 510038 0 0 3 0x14200 bored systqmp 9286 344473 0 0 3 0x14200 bored systq 83671 295698 0 0 3 0x14200 tmoslp softclockmp 77393 282622 0 0 3 0x40014200 tmoslp softclock 85839 377887 0 0 3 0x40014200 idle0 1 271317 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 98878 (syz-executor) thread 0xffff80002a116a60 (220607) exclusive rwlock sbufsnd r = 0 (0xffff8000013c41b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 sosend+0x2ff sys/kern/uipc_socket.c:681 #4 sendit+0x721 sys/kern/uipc_syscalls.c:786 #5 sys_sendto+0x8d sys/kern/uipc_syscalls.c:564 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 42229 (syz-executor) thread 0xffff8000ffff6a40 (288299) exclusive rrwlock inode r = 0 (0xfffffd806f1ee5f0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:678 #6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f1ee4e0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:678 #6 cache_lookup+0x36e sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #10 namei+0x7aa sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10220 11212K 11506K 166960K 13848 0 pcb 17 17K 18K 166960K 295 0 rtable 247 7K 8K 166960K 851 0 pf 34 17K 21K 166960K 134 0 ifaddr 45 8K 8K 166960K 103 0 ifgroup 55 2K 2K 166960K 162 0 sysctl 4 1K 1K 166960K 8 0 counters 64 36K 36K 166960K 130 0 ioctlops 0 0K 4K 166960K 1581 0 iov 0 0K 16K 166960K 203 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1488 93K 94K 166960K 2798 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 23 2K 3K 166960K 85 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 15 53K 93K 166960K 1764 0 sigio 0 0K 0K 166960K 35 0 proc 77 127K 128K 166960K 836 0 subproc 104 6K 6K 166960K 161 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 269 0 in_multi 99 7K 7K 166960K 212 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 193 864K 864K 166960K 193 0 exec 0 0K 1K 166960K 656 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 234 73K 87K 166960K 18580 0 UVM aobj 90 7K 7K 166960K 99 0 pinsyscall 41 82K 104K 166960K 3013 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 88 0 NDP 12 0K 2K 166960K 73 0 temp 76 6830K 7079K 166960K 72346 0 kqueue 15 24K 32K 166960K 251 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 120 293 0 289 5 0 5 5 0 8 4 rtentry 112 318 0 205 4 0 4 4 0 8 0 unpcb 144 1270 0 1253 10 9 1 4 0 8 0 syncache 336 13 0 13 5 4 1 1 0 8 1 tcpqe 32 4 0 4 3 2 1 1 0 8 1 tcpcb 808 876 0 871 28 20 8 11 0 8 7 arp 120 98 0 77 1 0 1 1 0 8 0 inpcb 336 2435 0 2361 31 22 9 12 0 8 2 nd6 136 43 0 13 2 0 2 2 0 8 0 pkpcb 40 14 0 14 6 6 0 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1168 17 0 17 6 5 1 1 0 8 1 pffrag 232 8 0 5 1 0 1 1 0 482 0 pffrnode 88 8 0 5 1 0 1 1 0 8 0 pffrent 40 124 0 121 2 1 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 pfanchor 1288 4 0 4 1 1 0 1 0 8 0 pfstitem 24 122 0 70 1 0 1 1 0 8 0 pfstkey 128 122 0 70 3 0 3 3 0 8 0 pfstate 376 122 0 70 8 0 8 8 0 8 0 pfrule 1344 23 0 17 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 876 0 390 39 6 33 33 0 8 1 art_table 32 878 0 390 6 1 5 5 0 8 0 art_node 16 314 0 219 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 11 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 80 0 59 1 0 1 1 0 8 0 shmpl 112 96 0 9 3 0 3 3 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 4377 0 2862 95 0 95 95 0 8 0 ffsino 272 4377 0 2862 102 0 102 102 0 8 0 nchpl 144 6966 0 6411 63 40 23 63 0 8 0 uvmvnodes 80 5435 0 0 111 0 111 111 0 8 0 vnodes 216 5435 0 0 302 0 302 302 0 8 0 namei 1024 23775 0 23775 6 3 3 3 0 8 3 percpumem 16 79 0 33 1 0 1 1 0 8 0 kstatmem 264 90 0 66 2 0 2 2 0 8 0 scsiplug 72 6 0 6 5 5 0 1 0 8 0 scxspl 216 22280 0 22279 13 12 1 8 1 8 0 plimitpl 152 419 0 401 1 0 1 1 0 8 0 sigapl 424 2093 0 2024 10 1 9 9 0 8 0 futexpl 64 24549 0 24544 1 0 1 1 0 8 0 knotepl 120 378 0 0 11 0 11 11 0 8 0 kqueuepl 216 622 0 611 11 8 3 5 0 8 2 pipepl 320 435 0 407 11 8 3 8 0 8 0 fdescpl 496 2053 0 2024 5 0 5 5 0 8 0 filepl 152 13670 0 13355 32 14 18 18 0 8 5 lockfpl 104 635 0 632 2 1 1 2 0 8 0 lockfspl 48 212 0 209 1 0 1 1 0 8 0 sessionpl 144 40 0 31 1 0 1 1 0 8 0 pgrppl 48 77 0 60 1 0 1 1 0 8 0 ucredpl 104 1857 0 1842 1 0 1 1 0 8 0 zombiepl 144 2595 0 2594 2 1 1 1 0 8 0 processpl 1160 2093 0 2024 7 1 6 6 0 8 0 procpl 648 4830 0 4750 9 1 8 8 0 8 0 srpgc 96 16 0 16 3 3 0 1 0 8 0 sosppl 168 18 0 18 4 4 0 1 0 8 0 sockpl 664 4043 0 3948 45 33 12 17 0 8 3 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 137 0 0 18 0 18 18 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 31 0 0 4 0 4 4 0 8 0 mtagpl 96 89 0 0 3 0 3 3 0 8 0 mbufpl 256 2496 0 0 153 0 153 153 0 8 0 bufpl 280 6773 0 599 442 0 442 442 0 8 0 anonpl 24 310374 0 306532 109 52 57 57 0 185 9 amapchunkpl 152 59484 0 58983 44 19 25 28 0 158 1 amappl16 200 7563 0 7530 70 55 15 20 0 8 8 amappl15 192 45 0 44 1 0 1 1 0 8 0 amappl14 184 161 0 149 1 0 1 1 0 8 0 amappl13 176 9 0 9 2 2 0 1 0 8 0 amappl12 168 2780 0 2750 4 2 2 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 16 0 16 1 1 0 1 0 8 0 amappl9 144 152 0 152 1 1 0 1 0 8 0 amappl8 136 34 0 31 1 0 1 1 0 8 0 amappl7 128 131 0 119 1 0 1 1 0 8 0 amappl6 120 206 0 205 1 0 1 1 0 8 0 amappl5 112 165 0 153 1 0 1 1 0 8 0 amappl4 104 381 0 362 1 0 1 1 0 8 0 amappl3 96 11183 0 11092 3 0 3 3 0 8 0 amappl2 88 2442 0 2357 3 0 3 3 0 8 0 amappl1 80 15335 0 14770 15 1 14 14 0 8 0 amappl 88 17965 0 17793 5 0 5 5 0 92 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 98 0 9 2 0 2 2 0 8 0 uaddrrnd 24 2053 0 2023 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2053 0 2023 1 0 1 1 0 8 0 vmmpekpl 168 18164 0 18107 3 0 3 3 0 8 0 vmmpepl 168 133089 0 131251 136 36 100 100 0 357 8 vmsppl 448 2052 0 2023 6 2 4 5 0 8 0 rwobjpl 56 43697 0 37236 95 0 95 95 0 8 0 pdppl 4096 4113 0 4046 125 52 73 85 0 8 6 pvpl 32 16625 0 0 135 1 134 134 0 265 0 pmappl 248 2052 0 2023 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 631 0 117 15 0 15 15 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8348eff0) 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(ffffffff836256d0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836256d0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a081c30,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff836256d0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836256d0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff80002a081d90,ffff800000079e80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __mp_lock(ffffffff836256d0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836256d0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80002a081f60) at syscall+0xa11 mi_syscall_return sys/sys/syscall_mi.h:206 [inline] syscall(ffff80002a081f60) at syscall+0xa11 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ec404536970, count: -12 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(ffff8000013c6028,9,0) at witness_checkorder+0x1b4 rw_enter_write(ffff8000013c6018) at rw_enter_write+0x7a sys/kern/kern_rwlock.c:128 unveil_delete_names(ffff8000013c6000) at unveil_delete_names+0x3d sys/kern/kern_unveil.c:102 unveil_destroy(ffff800037254918) at unveil_destroy+0xbd sys/kern/kern_unveil.c:183 exit1(ffff8000371f6548,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff8000371f6548,ffff80002a15c750,ffff80002a15c6a0) at sys_exit+0x1a syscall(ffff80002a15c750) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff80002a15c750) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7d4c63439780, count: -9