witness: lock order reversal: 1st 0xffff80000128d4a0 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806d877640 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff83120c01 -> 0xffffffff830cf67f is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:537 #2 soreceive+0x28e sys/kern/uipc_socket.c:876 #3 fifo_read+0x11a sys/miscfs/fifofs/fifo_vnops.c:264 #4 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #5 vn_rdwr+0x15b #6 vndsetcred+0xa1 sys/dev/vnd.c:684 #7 vndioctl+0xe6c sys/dev/vnd.c:485 #8 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #9 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #10 sys_ioctl+0x5c3 #11 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #11 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 lock order [3] sbufrcv (&so->so_rcv.sb_lock) -> [1] sbufsnd (&so->so_snd.sb_lock) #0 rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 #1 sblock+0xb7 sys/kern/uipc_socket2.c:537 #2 sosplice+0x40d sys/kern/uipc_socket.c:1358 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1221 #4 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #4 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806d877640,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806d877628,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806d877628,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805dff0638,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805dff0638,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c59e468) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003c59e468) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff80000128d2e0,fffffd805f8f7000,ffff8000ffff7c00) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff80000128d2e0,fffffd800abeab00,fffffd805f8f7000,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff80000128d2e0,fffffd805f8f7000,ffff80003c59e6e8,0,0,0) at sosend+0x804 sendit(ffff8000ffff7c00,3,ffff80003c59e860,0,ffff80003c59e920) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff8000ffff7c00,ffff80003c59e9d0,ffff80003c59e920) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003c59e9d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c59e9d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1d36a5b6690, count: -15 ddb{0}> show registers rdi 0 rsi 0x80000 acpi_pdirpa+0x6be71 rbp 0xffff80003c59e0e0 rbx 0xfffffd800433f2c8 rdx 0xffff800001348640 rcx 0xffff8000ffff7c00 rax 0x7ffff acpi_pdirpa+0x6be70 r8 0xffff80003c59dfc0 r9 0x8080808080808080 r10 0xa5b0954f71ea868b r11 0x192d81b8c4a53075 r12 0 r13 0xfffffd8003b56f00 r14 0x3 r15 0xffffffff rip 0xffffffff82a6fbd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c59e0d0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=367747 pid=33056 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff67c0,0xffffffff8360c558 process=0xffff800038d6c6e0 user=0xffff80003c599000, vmspace=0xfffffd806d271010 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 33056 38044 38893 0 7 0 syz-executor *33056 367747 38893 0 7 0x4000000 syz-executor 78568 449295 6412 0 3 0x80 nanoslp syz-executor 78568 455384 6412 0 3 0x4000080 fsleep syz-executor 78568 89627 6412 0 3 0x4000080 lockf syz-executor 53630 300252 32224 0 3 0x80 nanoslp syz-executor 53630 26672 32224 0 3 0x4000080 ttyopn syz-executor 53630 187693 32224 0 3 0x4000080 fsleep syz-executor 53630 267681 32224 0 3 0x4000080 fsleep syz-executor 83591 253331 20273 0 3 0x80 nanoslp syz-executor 83591 356012 20273 0 3 0x4000080 kqsel syz-executor 83591 346240 20273 0 3 0x4000080 fsleep syz-executor 70995 167621 34499 0 3 0x80 nanoslp syz-executor 70995 57627 34499 0 3 0x4000080 kqread syz-executor 18914 312577 36473 0 3 0x80 nanoslp syz-executor 18914 165673 36473 0 3 0x4000080 bell syz-executor 18914 139563 36473 0 3 0x4000080 fsleep syz-executor 38893 300827 29906 0 3 0x82 nanoslp syz-executor 31968 288602 29906 0 3 0x82 wait syz-executor 20273 523303 29906 0 3 0x82 nanoslp syz-executor 41727 1689 1 0 3 0x100083 ttyin getty 79261 239719 0 0 3 0x14200 bored sosplice 36473 512327 29906 0 3 0x82 nanoslp syz-executor 34499 265437 29906 0 3 0x82 nanoslp syz-executor 6412 154897 29906 0 3 0x82 nanoslp syz-executor 52161 422040 29906 0 3 0x82 wait syz-executor 32224 334296 29906 0 3 0x82 nanoslp syz-executor 29906 493841 50646 0 3 0x82 kqread syz-executor 50646 183868 52457 0 3 0x10008a sigsusp ksh 52457 384294 65099 0 3 0x98 kqread sshd-session 65099 293663 59081 0 3 0x92 kqread sshd-session 59081 523237 1 0 3 0x88 kqread sshd 59390 144265 31647 74 3 0x1100092 bpf pflogd 31647 279998 1 0 3 0x80 sbwait pflogd 37005 187131 19577 73 3 0x1100090 kqread syslogd 19577 337534 1 0 3 0x100082 sbwait syslogd 52777 53560 1 0 3 0x100080 kqread resolvd 13245 340955 44925 77 3 0x100092 kqread dhcpleased 26354 386036 44925 77 3 0x100092 kqread dhcpleased 44925 246488 1 0 3 0x80 kqread dhcpleased 91092 100239 0 0 3 0x14200 bored smr 53342 358961 0 0 3 0x14200 pgzero zerothread 86146 251372 0 0 3 0x14200 aiodoned aiodoned 41539 477425 0 0 3 0x14200 syncer update 47925 40589 0 0 3 0x14200 cleaner cleaner 90346 321068 0 0 3 0x14200 reaper reaper 43407 430512 0 0 3 0x14200 pgdaemon pagedaemon 24388 70063 0 0 3 0x14200 bored viomb 86531 427041 0 0 3 0x40014200 acpi0 acpi0 56010 208592 0 0 3 0x40014200 idle1 23838 348477 0 0 3 0x14200 bored softnet3 72833 69846 0 0 3 0x14200 bored softnet2 16382 272917 0 0 3 0x14200 bored softnet1 5062 246792 0 0 3 0x14200 bored softnet0 75894 267212 0 0 3 0x14200 bored systqmp 99554 463517 0 0 3 0x14200 bored systq 98293 238191 0 0 3 0x14200 tmoslp softclockmp 79707 366816 0 0 3 0x40014200 tmoslp softclock 33926 279851 0 0 3 0x40014200 idle0 1 410696 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 33056 (syz-executor) thread 0xffff8000ffff7c00 (367747) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8360db10) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 unp_connect+0x26c sys/kern/uipc_usrreq.c:868 #2 uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 #3 sosend+0x804 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff80000128d4a0) #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 sblock+0xb7 sys/kern/uipc_socket2.c:537 #3 sosend+0x2e2 sys/kern/uipc_socket.c:625 #4 sendit+0x721 sys/kern/uipc_syscalls.c:779 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10222 11029K 11425K 166960K 13846 0 pcb 18 15K 17K 166960K 428 0 rtable 175 7K 8K 166960K 589 0 pf 31 17K 21K 166960K 127 0 ifaddr 34 6K 7K 166960K 92 0 ifgroup 47 2K 2K 166960K 136 0 sysctl 4 1K 1K 166960K 6 0 counters 60 35K 37K 166960K 120 0 ioctlops 0 0K 4K 166960K 1684 0 iov 0 0K 16K 166960K 172 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1457 92K 92K 166960K 2830 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 32 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 85 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 18 65K 89K 166960K 1657 0 sigio 0 0K 0K 166960K 26 0 proc 72 91K 128K 166960K 769 0 subproc 72 4K 4K 166960K 100 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 248 0 in_multi 71 5K 7K 166960K 184 0 ether_multi 1 0K 0K 166960K 11 0 mrt 0 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 783 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 250 74K 89K 166960K 17221 0 UVM aobj 29 4K 4K 166960K 30 0 pinsyscall 43 86K 102K 166960K 2895 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 107 0 NDP 10 0K 2K 166960K 64 0 temp 79 6900K 6980K 166960K 72349 0 kqueue 15 24K 32K 166960K 302 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 120 134 0 131 1 0 1 1 0 8 0 rtentry 112 179 0 105 4 0 4 4 0 8 0 unpcb 144 1284 0 1264 12 8 4 4 0 8 3 syncache 336 10 0 10 3 3 0 1 0 8 0 tcpqe 32 2 0 2 2 2 0 1 0 8 0 tcpcb 808 574 0 567 19 17 2 8 0 8 1 arp 120 31 0 16 1 0 1 1 0 8 0 inpcb 376 2256 0 2240 30 21 9 11 0 8 7 nd6 136 36 0 20 1 0 1 1 0 8 0 pkpcb 40 4 0 4 3 2 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1168 17 0 17 4 3 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 9 0 3 2 1 1 1 0 482 0 pffrnode 88 9 0 3 2 1 1 1 0 8 0 pffrent 40 59 0 53 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 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 101 0 27 1 0 1 1 0 8 0 pfstkey 128 103 0 29 3 0 3 3 0 8 0 pfstate 376 102 0 28 8 0 8 8 0 8 0 pfrule 1344 30 0 19 2 0 2 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 691 0 364 29 5 24 29 0 8 0 art_table 32 694 0 364 4 0 4 4 0 8 0 art_node 16 169 0 103 1 0 1 1 0 8 0 sysvmsgpl 40 46 0 6 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 82 0 72 1 0 1 1 0 8 0 shmpl 112 27 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 4288 0 2775 96 0 96 96 0 8 1 ffsino 280 4288 0 2775 109 0 109 109 0 8 0 nchpl 144 6761 0 6154 63 39 24 63 0 8 0 uvmvnodes 80 5333 0 0 109 0 109 109 0 8 0 vnodes 216 5333 0 0 297 0 297 297 0 8 0 namei 1024 23663 0 23662 4 3 1 2 0 8 0 percpumem 16 74 0 30 1 0 1 1 0 8 0 kstatmem 264 80 0 60 3 1 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 3 2 1 1 0 8 1 scxspl 216 19091 0 19091 12 9 3 8 1 8 3 plimitpl 152 253 0 236 1 0 1 1 0 8 0 sigapl 424 1993 0 1942 11 3 8 9 0 8 1 futexpl 64 23046 0 23041 1 0 1 1 0 8 0 knotepl 120 577 0 0 17 0 17 17 0 8 0 kqueuepl 216 444 0 432 1 0 1 1 0 8 0 pipepl 328 440 0 413 6 3 3 6 0 8 0 fdescpl 504 1952 0 1920 5 0 5 5 0 8 0 filepl 152 13584 0 13349 28 14 14 17 0 8 3 lockfpl 104 585 0 581 1 0 1 1 0 8 0 lockfspl 48 217 0 214 1 0 1 1 0 8 0 sessionpl 144 33 0 24 1 0 1 1 0 8 0 pgrppl 48 47 0 30 1 0 1 1 0 8 0 ucredpl 104 2008 0 1995 1 0 1 1 0 8 0 zombiepl 144 2116 0 2114 1 0 1 1 0 8 0 processpl 1168 1993 0 1942 6 1 5 6 0 8 0 procpl 648 4536 0 4474 9 2 7 8 0 8 0 srpgc 96 10 0 10 5 4 1 1 0 8 1 sosppl 168 8 0 8 3 2 1 1 0 8 1 sockpl 688 3702 0 3664 37 25 12 15 0 8 8 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 131 0 0 17 0 17 17 0 8 0 mcl2k 2048 39 0 0 5 0 5 5 0 8 0 mtagpl 96 30 0 0 1 0 1 1 0 8 0 mbufpl 256 1269 0 0 78 0 78 78 0 8 0 bufpl 280 5339 0 139 372 0 372 372 0 8 0 anonpl 24 249549 0 242554 108 41 67 67 0 185 14 amapchunkpl 152 55730 0 55098 39 5 34 34 0 158 6 amappl16 200 4622 0 4467 46 25 21 21 0 8 8 amappl15 192 6 0 6 2 2 0 1 0 8 0 amappl14 184 158 0 145 1 0 1 1 0 8 0 amappl13 176 6 0 6 2 2 0 1 0 8 0 amappl12 168 2663 0 2631 3 1 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 9 0 8 2 1 1 1 0 8 0 amappl9 144 251 0 251 1 1 0 1 0 8 0 amappl8 136 41 0 38 1 0 1 1 0 8 0 amappl7 128 125 0 112 1 0 1 1 0 8 0 amappl6 120 213 0 210 1 0 1 1 0 8 0 amappl5 112 135 0 125 1 0 1 1 0 8 0 amappl4 104 365 0 345 1 0 1 1 0 8 0 amappl3 96 11495 0 11370 4 0 4 4 0 8 0 amappl2 88 777 0 713 2 0 2 2 0 8 0 amappl1 80 14455 0 13876 14 0 14 14 0 8 0 amappl 88 16662 0 16469 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 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 29 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1952 0 1920 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1952 0 1920 1 0 1 1 0 8 0 vmmpekpl 168 17142 0 17094 3 0 3 3 0 8 0 vmmpepl 168 123150 0 121071 120 18 102 102 0 357 7 vmsppl 456 1951 0 1920 5 0 5 5 0 8 0 rwobjpl 64 38391 0 31938 107 2 105 105 0 8 0 pdppl 4096 3911 0 3840 115 44 71 83 0 8 0 pvpl 32 17535 0 0 142 0 142 142 0 265 0 pmappl 248 1951 0 1920 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 396 0 79 10 0 10 10 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 witness_checkorder(fffffd806d877640,9,0) at witness_checkorder+0x1047 rw_do_enter_write(fffffd806d877628,1) at rw_do_enter_write+0xb7 sys/kern/kern_rwlock.c:233 rrw_enter(fffffd806d877628,1) at rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 VOP_LOCK(fffffd805dff0638,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd805dff0638,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:570 vfs_lookup(ffff80003c59e468) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff80003c59e468) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff80000128d2e0,fffffd805f8f7000,ffff8000ffff7c00) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff80000128d2e0,fffffd800abeab00,fffffd805f8f7000,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff80000128d2e0,fffffd805f8f7000,ffff80003c59e6e8,0,0,0) at sosend+0x804 sendit(ffff8000ffff7c00,3,ffff80003c59e860,0,ffff80003c59e920) at sendit+0x721 sys/kern/uipc_syscalls.c:779 sys_sendmsg(ffff8000ffff7c00,ffff80003c59e9d0,ffff80003c59e920) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:597 syscall(ffff80003c59e9d0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c59e9d0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1d36a5b6690, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b5bff0) 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(ffffffff8360d908) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360d908) at __mp_lock+0x192 sys/kern/kern_lock.c:144 syscall(ffff80003c5c9130) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c5c9130) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a73d8c2cb70, count: -6