witness: lock order reversal: 1st 0xffff800010fdf678 sbufsnd (&so->so_snd.sb_lock) 2nd 0xfffffd806e675d68 inode (&ip->i_lock) lock order [1] sbufsnd (&so->so_snd.sb_lock) -> [2] inode (&ip->i_lock) lock order data 0xffffffff830beb84 -> 0xffffffff83071f68 is missing lock order [2] inode (&ip->i_lock) -> [3] sbufrcv (&so->so_rcv.sb_lock) #0 rw_enter+0x122 #1 sblock+0xb7 sys/kern/uipc_socket2.c:549 #2 soreceive+0x295 sys/kern/uipc_socket.c:945 #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+0xf6 sys/kern/vfs_vnops.c:525 #10 sys_ioctl+0x67c #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #11 syscall+0xbb6 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_enter+0x122 #1 sblock+0xb7 sys/kern/uipc_socket2.c:549 #2 sosplice+0x3f4 sys/kern/uipc_socket.c:1454 #3 sys_setsockopt+0x2ba sys/kern/uipc_syscalls.c:1228 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] #4 syscall+0xbb6 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(fffffd806e675d68,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806e675d58,1) at rw_enter+0x122 rrw_enter(fffffd806e675d58,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd8067542468,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8067542468,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff800037202408) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff800037202408) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fdf4d0,fffffd807466fd00,ffff800036ba62b0) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff800010fdf4d0,fffffd807a1fb500,fffffd807466fd00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff800010fdf4d0,fffffd807466fd00,ffff800037202698,0,0,0) at sosend+0xa40 sendit(ffff800036ba62b0,3,ffff800037202810,0,ffff8000372028d0) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff800036ba62b0,ffff800037202980,ffff8000372028d0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff800037202980) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037202980) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3fd45e25f40, count: -15 ddb{0}> show registers rdi 0 rsi 0x40000 acpi_pdirpa+0x2be71 rbp 0xffff800037202060 rbx 0xfffffd80042c8680 rdx 0xffff8000012b3800 rcx 0xffff800036ba62b0 rax 0x3ffff acpi_pdirpa+0x2be70 r8 0xffff800037201f40 r9 0x8080808080808080 r10 0x3b94713fea5a9681 r11 0xb0e86786e6d8fab r12 0 r13 0xfffffd8003adfe00 r14 0x3 r15 0xffffffff rip 0xffffffff812ecd15 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800037202050 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=403964 pid=51366 tcnt=2 stat=onproc flags process=10 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036ba6538,0xffffffff83509350 process=0xffff8000ffff6458 user=0xffff8000371fd000, vmspace=0xfffffd806befdaa0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 51366 82417 10512 60929 2 0x10 syz-executor *51366 403964 10512 60929 7 0x4000010 syz-executor 90271 100260 9709 0 7 0x2 sshd-session 46303 214144 45118 0 3 0x80 fsleep syz-executor 46303 46576 45118 0 3 0x4000080 ttyout syz-executor 79609 342084 53427 0 3 0x80 fsleep syz-executor 79609 48279 53427 0 3 0x4000080 ttyin syz-executor 64904 120687 17534 0 3 0x80 fsleep syz-executor 64904 106002 17534 0 3 0x4000080 fifor syz-executor 61417 431373 58304 0 3 0x80 fsleep syz-executor 61417 67733 58304 0 3 0x4000080 lockf syz-executor 61417 106845 58304 0 3 0x4000080 fsleep syz-executor 99745 175251 60516 0 3 0x80 fsleep syz-executor 99745 100279 60516 0 3 0x4000080 ttyout syz-executor 99745 200950 60516 0 3 0x4000080 ttyout syz-executor 53141 147391 47575 0 3 0x80 fsleep syz-executor 53141 98723 47575 0 3 0x4000080 msgwait syz-executor 9071 380425 0 0 3 0x14200 acct acct 10512 478387 34687 0 3 0x82 nanoslp syz-executor 60516 519890 34687 0 3 0x82 nanoslp syz-executor 37362 214058 1 0 3 0x80 nanoslp init 45118 188324 34687 0 3 0x82 nanoslp syz-executor 77381 215959 0 0 3 0x14200 bored sosplice 40892 275367 57663 0 3 0x100082 sbwait ndp 57663 307665 28386 0 3 0x10008a sigsusp sh 53427 185910 34687 0 3 0x82 nanoslp syz-executor 28386 434660 34687 0 3 0x82 wait syz-executor 17534 512355 34687 0 3 0x82 nanoslp syz-executor 47575 465219 34687 0 3 0x82 nanoslp syz-executor 58304 114424 34687 0 3 0x82 nanoslp syz-executor 34687 467961 81140 0 3 0x82 kqread syz-executor 81140 178640 54328 0 3 0x10008a sigsusp ksh 54328 304051 37230 0 3 0x98 kqread sshd-session 37230 414822 9709 0 3 0x92 kqread sshd-session 9709 42661 1 0 3 0x88 kqread sshd 83845 68929 86864 74 3 0x1100092 bpf pflogd 86864 504546 1 0 3 0x80 sbwait pflogd 31326 83358 29521 73 3 0x1100090 kqread syslogd 29521 139533 1 0 3 0x100082 sbwait syslogd 40825 455603 1 0 3 0x100080 kqread resolvd 73772 120778 98959 77 3 0x100092 kqread dhcpleased 55914 80550 98959 77 3 0x100092 kqread dhcpleased 98959 150907 1 0 3 0x80 kqread dhcpleased 57218 26544 0 0 3 0x14200 bored smr 59525 500804 0 0 3 0x14200 pgzero zerothread 41048 189658 0 0 3 0x14200 aiodoned aiodoned 61359 60233 0 0 3 0x14200 syncer update 95550 354510 0 0 3 0x14200 cleaner cleaner 31560 361942 0 0 3 0x14200 reaper reaper 57859 472632 0 0 3 0x14200 pgdaemon pagedaemon 5704 260633 0 0 3 0x14200 bored viomb 44498 300237 0 0 3 0x40014200 acpi0 acpi0 53844 336626 0 0 3 0x40014200 idle1 46468 151376 0 0 3 0x14200 bored softnet3 65535 364049 0 0 3 0x14200 bored softnet2 14186 405263 0 0 3 0x14200 bored softnet1 65809 432746 0 0 3 0x14200 bored softnet0 36626 461096 0 0 3 0x14200 bored systqmp 38146 195951 0 0 3 0x14200 bored systq 99390 513936 0 0 3 0x14200 tmoslp softclockmp 43201 462010 0 0 3 0x40014200 tmoslp softclock 42990 273340 0 0 3 0x40014200 idle0 1 343254 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 51366 (syz-executor) thread 0xffff800036ba62b0 (403964) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff836258d8) #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+0xa40 #4 sendit+0x721 sys/kern/uipc_syscalls.c:786 #5 sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #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 exclusive rwlock sbufsnd r = 0 (0xffff800010fdf678) #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_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10210 11193K 11567K 166960K 13048 0 pcb 17 16K 18K 166960K 313 0 rtable 208 7K 7K 166960K 550 0 pf 38 18K 22K 166960K 92 0 ifaddr 41 7K 7K 166960K 74 0 ifgroup 59 2K 2K 166960K 97 0 sysctl 4 1K 1K 166960K 6 0 counters 66 36K 36K 166960K 92 0 ioctlops 0 0K 4K 166960K 1670 0 iov 0 0K 16K 166960K 124 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1512 95K 95K 166960K 2501 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 25 0 VM map 2 1K 1K 166960K 2 0 sem 25 5K 5K 166960K 34 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 19 69K 85K 166960K 1205 0 sigio 0 0K 0K 166960K 26 0 proc 63 79K 128K 166960K 741 0 subproc 104 6K 6K 166960K 143 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 120 0 in_multi 87 6K 7K 166960K 164 0 ether_multi 1 0K 0K 166960K 3 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 127 572K 572K 166960K 127 0 exec 0 0K 1K 166960K 626 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 263 74K 87K 166960K 12744 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 46 92K 102K 166960K 2402 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 75 0 NDP 13 0K 2K 166960K 51 0 temp 63 6824K 6898K 166960K 46796 0 kqueue 13 20K 30K 166960K 170 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 120 260 0 256 6 4 2 3 0 8 1 rtentry 112 181 0 87 4 0 4 4 0 8 0 unpcb 144 871 0 851 11 7 4 6 0 8 3 syncache 336 12 0 12 4 3 1 1 0 8 1 tcpcb 808 453 0 446 17 16 1 8 0 8 0 arp 120 31 0 12 1 0 1 1 0 8 0 inpcb 336 1863 0 1853 25 21 4 13 0 8 3 nd6 136 41 0 20 1 0 1 1 0 8 0 pkpcb 40 5 0 5 1 1 0 1 0 8 0 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1168 8 0 8 4 3 1 1 0 8 1 pffrag 232 5 0 3 1 0 1 1 0 482 0 pffrnode 88 5 0 3 1 0 1 1 0 8 0 pffrent 40 11 0 9 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 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 72 0 31 1 0 1 1 0 8 0 pfstkey 128 74 0 33 2 0 2 2 0 8 0 pfstate 376 72 0 32 5 0 5 5 0 8 0 pfrule 1344 25 0 18 2 0 2 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 743 0 309 32 4 28 29 0 8 0 art_table 32 746 0 309 4 0 4 4 0 8 0 art_node 16 179 0 96 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 7 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 29 0 6 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 3451 0 1950 95 0 95 95 0 8 0 ffsino 272 3451 0 1950 101 0 101 101 0 8 0 nchpl 144 5131 0 4565 63 40 23 63 0 8 0 uvmvnodes 80 4333 0 0 89 0 89 89 0 8 0 vnodes 216 4333 0 0 241 0 241 241 0 8 0 namei 1024 18077 0 18076 1 0 1 1 0 8 0 percpumem 16 60 0 13 1 0 1 1 0 8 0 kstatmem 264 52 0 26 2 0 2 2 0 8 0 scsiplug 72 5 0 5 3 3 0 1 0 8 0 scxspl 216 14946 0 14946 11 10 1 8 1 8 1 plimitpl 152 269 0 253 1 0 1 1 0 8 0 sigapl 424 1510 0 1456 7 0 7 7 0 8 0 futexpl 64 17582 0 17575 1 0 1 1 0 8 0 knotepl 120 522 0 0 16 0 16 16 0 8 0 kqueuepl 216 352 0 343 7 4 3 5 0 8 2 pipepl 320 223 0 194 3 0 3 3 0 8 0 fdescpl 496 1490 0 1456 5 0 5 5 0 8 0 filepl 152 10398 0 10139 30 17 13 22 0 8 2 lockfpl 104 470 0 466 1 0 1 1 0 8 0 lockfspl 48 168 0 165 1 0 1 1 0 8 0 sessionpl 144 35 0 26 1 0 1 1 0 8 0 pgrppl 48 55 0 38 1 0 1 1 0 8 0 ucredpl 104 1375 0 1361 1 0 1 1 0 8 0 zombiepl 144 1456 0 1456 1 0 1 1 0 8 1 processpl 1160 1510 0 1456 4 0 4 4 0 8 0 procpl 648 3208 0 3145 6 0 6 6 0 8 0 srpgc 96 11 0 11 4 3 1 1 0 8 1 sosppl 168 4 0 4 2 2 0 1 0 8 0 sockpl 664 3008 0 2974 46 37 9 25 0 8 6 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 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 146 0 0 19 0 19 19 0 8 0 mcl2k 2048 52 0 0 5 0 5 5 0 8 0 mtagpl 96 23 0 0 1 0 1 1 0 8 0 mbufpl 256 363 0 0 22 0 22 22 0 8 0 bufpl 280 5470 0 120 383 0 383 383 0 8 0 anonpl 24 251325 0 245241 63 11 52 62 0 185 9 amapchunkpl 152 41244 0 40580 38 11 27 33 0 158 1 amappl16 200 6410 0 6348 34 29 5 15 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 134 0 121 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 2216 0 2182 3 1 2 2 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 1 0 1 0 8 0 amappl9 144 130 0 130 1 1 0 1 0 8 0 amappl8 136 21 0 17 1 0 1 1 0 8 0 amappl7 128 143 0 129 1 0 1 1 0 8 0 amappl6 120 201 0 198 1 0 1 1 0 8 0 amappl5 112 162 0 147 1 0 1 1 0 8 0 amappl4 104 352 0 334 1 0 1 1 0 8 0 amappl3 96 7730 0 7624 3 0 3 3 0 8 0 amappl2 88 1860 0 1766 3 0 3 3 0 8 0 amappl1 80 13152 0 12500 14 0 14 14 0 8 0 amappl 88 12224 0 12028 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 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 128 253 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1490 0 1456 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1490 0 1456 1 0 1 1 0 8 0 vmmpekpl 168 13033 0 12983 3 0 3 3 0 8 0 vmmpepl 168 99652 0 97570 99 8 91 95 0 357 0 vmsppl 448 1489 0 1456 6 1 5 5 0 8 0 rwobjpl 56 34398 0 28961 77 0 77 77 0 8 0 pdppl 4096 2987 0 2912 119 44 75 81 0 8 0 pvpl 32 17170 0 0 139 0 139 139 0 265 0 pmappl 248 1489 0 1456 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 464 0 96 11 0 11 11 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(fffffd806e675d68,9,0) at witness_checkorder+0x1047 rw_enter(fffffd806e675d58,1) at rw_enter+0x122 rrw_enter(fffffd806e675d58,1) at rrw_enter+0xbe sys/kern/kern_rwlock.c:464 VOP_LOCK(fffffd8067542468,2001) at VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 vn_lock(fffffd8067542468,2001) at vn_lock+0xa4 sys/kern/vfs_vnops.c:564 vfs_lookup(ffff800037202408) at vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 namei(ffff800037202408) at namei+0x7aa sys/kern/vfs_lookup.c:250 unp_connect(ffff800010fdf4d0,fffffd807466fd00,ffff800036ba62b0) at unp_connect+0x27d sys/kern/uipc_usrreq.c:868 uipc_dgram_send(ffff800010fdf4d0,fffffd807a1fb500,fffffd807466fd00,0) at uipc_dgram_send+0x131 sys/kern/uipc_usrreq.c:607 sosend(ffff800010fdf4d0,fffffd807466fd00,ffff800037202698,0,0,0) at sosend+0xa40 sendit(ffff800036ba62b0,3,ffff800037202810,0,ffff8000372028d0) at sendit+0x721 sys/kern/uipc_syscalls.c:786 sys_sendmsg(ffff800036ba62b0,ffff800037202980,ffff8000372028d0) at sys_sendmsg+0x246 sys/kern/uipc_syscalls.c:604 syscall(ffff800037202980) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff800037202980) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3fd45e25f40, count: -15 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b7bff0) 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 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff836256d0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff836256d0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 syscall(ffff8000372200f0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:178 [inline] syscall(ffff8000372200f0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x71c130a2fd70, count: -7