panic: kernel diagnostic assertion "rn != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/pipex.c", line 501 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83338915) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a053,ffffffff832ce8e1,1f5,ffffffff833308f4) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002e52a5b0) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a7f8020) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003994f040) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b4025f8,41,fffffd8007bfb820,ffff80002a7f8020) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b83ccb0,ffff80002a7f8020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b83ccb0,ffff80002a7f8020) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7f8020) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7f8020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7f8020,ffff80003994f3a0,ffff80003994f2f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80003994f390, count: 0 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: kernel diagnostic assertion "rn != NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/pipex.c", line 501 ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83338915) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a053,ffffffff832ce8e1,1f5,ffffffff833308f4) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002e52a5b0) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a7f8020) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003994f040) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b4025f8,41,fffffd8007bfb820,ffff80002a7f8020) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b83ccb0,ffff80002a7f8020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b83ccb0,ffff80002a7f8020) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7f8020) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7f8020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7f8020,ffff80003994f3a0,ffff80003994f2f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003994f3a0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003994f3a0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78bca3a73820, count: -16 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003994ee20 rbx 0x1 rdx 0 rcx 0 rax 0xffff80002a7f8020 r8 0x101010101010101 r9 0x8080808080808080 r10 0xc4da5db0bc52c4ba r11 0x36cf2d532a2ca82 r12 0 r13 0 r14 0 r15 0x1 rip 0xffffffff83149875 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003994ee10 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=272973 pid=85962 tcnt=0 stat=onproc flags process=1008 proc=2000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a7f8020 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003753e7f0,0xffff80002a7f8a90 process=0xffff80003c9884a0 user=0xffff80003994a000, vmspace=0xfffffd806ae1d8b8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 26369 289377 89775 0 2 0 syz-executor 26369 162241 89775 0 3 0x4000080 ttyout syz-executor 79070 281179 6375 0 2 0 syz-executor 79070 491979 6375 0 3 0x4000080 sbwait syz-executor 29663 521071 98376 0 3 0x80 nanoslp syz-executor 29663 394783 98376 0 3 0x4000080 kqsel syz-executor 29663 315588 98376 0 3 0x4000080 fsleep syz-executor 24787 316142 29541 0 2 0x2 syz-executor 71614 75529 1 0 3 0x100083 ttyin getty 98758 416191 29541 0 3 0x82 wait syz-executor 19940 439328 0 0 3 0x14200 bored sosplice 88705 96056 29541 0 2 0x2 syz-executor 98376 315117 29541 0 3 0x82 nanoslp syz-executor 89775 391932 29541 0 3 0x82 nanoslp syz-executor 25921 507454 29541 0 2 0x10000082 syz-executor 60258 193263 29541 0 3 0x82 nanoslp syz-executor 6375 451186 29541 0 3 0x82 nanoslp syz-executor 29541 92079 24354 0 3 0x82 kqread syz-executor 24354 514832 58553 0 3 0x10008a sigsusp ksh 58553 152691 81846 0 3 0x98 kqread sshd-session 81846 456970 84246 0 3 0x92 kqread sshd-session 84246 167260 1 0 3 0x88 kqread sshd 91408 253632 33206 73 3 0x1100090 kqread syslogd 33206 55784 1 0 3 0x100082 sbwait syslogd 85204 506854 1 0 3 0x100080 kqread resolvd 58260 460673 62393 77 2 0x100012 dhcpleased 54141 62378 62393 77 3 0x100092 kqread dhcpleased 62393 151189 1 0 3 0x80 kqread dhcpleased 15760 317643 0 0 3 0x14200 bored smr 70961 136554 0 0 2 0x14200 zerothread 90690 355262 0 0 3 0x14200 aiodoned aiodoned 39370 273618 0 0 3 0x14200 syncer update 96783 468204 0 0 3 0x14200 cleaner cleaner 58576 245470 0 0 3 0x14200 reaper reaper 34144 359411 0 0 3 0x14200 pgdaemon pagedaemon 59040 327409 0 0 3 0x14200 bored viomb 92557 167795 0 0 3 0x40014200 acpi0 acpi0 94961 130865 0 0 3 0x14200 bored softnet7 4496 496768 0 0 3 0x14200 bored softnet6 81467 368826 0 0 3 0x14200 bored softnet5 12601 411189 0 0 3 0x14200 bored softnet4 81089 339952 0 0 3 0x14200 bored softnet3 87797 45762 0 0 3 0x14200 bored softnet2 73322 53464 0 0 3 0x14200 bored softnet1 73959 425464 0 0 3 0x14200 bored softnet0 71115 434427 0 0 3 0x14200 bored systqmp 1711 84435 0 0 3 0x14200 bored systq 52364 508190 0 0 3 0x40014200 tmoslp softclock 92724 167149 0 0 3 0x40014200 idle0 1 474958 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10186 11054K 12108K 166960K 12127 0 pcb 17 15K 17K 166960K 203 0 rtable 218 10K 10K 166960K 584 0 pf 34 13K 131085K 166960K 151 0 ifaddr 40 7K 8K 166960K 94 0 ifgroup 48 2K 2K 166960K 138 0 sysctl 3 1K 9K 166960K 11 0 counters 33 17K 18K 166960K 149 0 ioctlops 0 0K 4K 166960K 447 0 iov 1 4K 20K 166960K 54 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1400 88K 88K 166960K 2471 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 11 1K 1K 166960K 14 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 240K 166960K 997 0 sigio 0 0K 0K 166960K 18 0 proc 60 59K 100K 166960K 653 0 subproc 72 4K 4K 166960K 91 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 83 0 in_multi 88 6K 7K 166960K 138 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 520 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 216 159K 188K 166960K 10207 0 UVM aobj 124 4K 4K 166960K 126 0 pinsyscall 36 72K 94K 166960K 2086 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 73 0 NDP 11 0K 2K 166960K 62 0 temp 60 8644K 8897K 166960K 36535 0 kqueue 13 20K 30K 166960K 193 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 106 0 103 1 0 1 1 0 8 0 rtentry 136 145 0 62 4 0 4 4 0 8 0 unpcb 144 1146 0 1128 7 0 7 7 0 8 6 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 695 0 690 11 2 9 10 0 8 8 arp 88 18 0 6 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 328 1320 0 1311 13 4 9 12 0 8 7 ip6q 72 5 0 2 1 0 1 1 0 8 0 ip6af 40 7 0 4 1 0 1 1 0 8 0 nd6 104 24 0 9 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 0 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 108 0 106 1 0 1 1 0 8 0 pppxif 1384 5 0 5 1 0 1 1 0 8 1 pfstscr 40 4 0 4 1 0 1 1 0 8 1 pfrktable 1344 4 0 2 1 0 1 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 8 0 5 1 0 1 1 0 8 0 pfstate 384 4 0 2 1 0 1 1 0 8 0 pfrule 1344 37 0 36 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 638 0 254 31 0 31 31 0 8 3 art_table 40 642 0 254 5 0 5 5 0 8 0 art_node 32 144 0 74 1 0 1 1 0 8 0 sysvmsgpl 40 80 0 77 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 12 0 3 1 0 1 1 0 8 0 shmpl 112 123 0 2 4 0 4 4 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3676 0 2180 95 0 95 95 0 8 0 ffsino 256 3676 0 2180 95 0 95 95 0 8 0 nchpl 144 5081 0 3391 63 0 63 63 0 8 0 rtmask 32 13 0 12 1 0 1 1 0 8 0 uvmvnodes 80 4040 0 0 83 0 83 83 0 8 0 vnodes 216 4040 0 0 225 0 225 225 0 8 0 namei 1024 18348 0 18348 2 0 2 2 0 8 2 pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0 kstatmem 264 84 0 62 2 0 2 2 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 8 0 8 1 0 1 1 0 8 1 scxspl 216 20437 0 20437 8 0 8 8 1 8 8 plimitpl 152 313 0 296 1 0 1 1 0 8 0 sigapl 424 1270 0 1221 7 0 7 7 0 8 1 knotepl 120 99601 0 99554 15 5 10 15 0 8 8 kqueuepl 184 689 0 679 7 0 7 7 0 8 6 pipepl 304 188 0 161 3 0 3 3 0 8 0 fdescpl 448 1247 0 1220 5 0 5 5 0 8 1 filepl 120 10287 0 10071 14 0 14 14 0 8 5 lockfpl 104 788 0 785 2 0 2 2 0 8 1 lockfspl 48 171 0 168 1 0 1 1 0 8 0 sessionpl 144 29 0 21 1 0 1 1 0 8 0 pgrppl 48 79 0 63 1 0 1 1 0 8 0 ucredpl 104 2755 0 2744 1 0 1 1 0 8 0 zombiepl 144 1224 0 1221 1 0 1 1 0 8 0 processpl 1168 1270 0 1221 5 0 5 5 0 8 1 procpl 664 2553 0 2500 6 0 6 6 0 8 0 sosppl 168 5 0 5 1 0 1 1 0 8 1 sockpl 552 2609 0 2579 24 14 10 19 0 8 7 mcl64k 65536 140 0 140 1 0 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 20 0 20 1 0 1 1 0 8 1 mcl4k 4096 3589 0 3537 14 0 14 14 0 8 7 mcl2k 2048 1473 0 1465 3 0 3 3 0 8 2 mtagpl 96 9 0 9 1 0 1 1 0 8 1 mbufpl 256 13793 0 13645 15 0 15 15 0 8 1 bufpl 280 7441 0 1213 445 0 445 445 0 8 0 anonpl 24 212340 0 207333 64 0 64 64 0 187 20 amapchunkpl 152 35596 0 35085 38 0 38 38 0 158 14 amappl16 200 3723 0 3652 24 10 14 24 0 8 7 amappl15 192 21 0 21 1 0 1 1 0 8 1 amappl14 184 119 0 109 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 0 1 1 0 8 1 amappl12 168 1890 0 1863 2 0 2 2 0 8 0 amappl11 160 47 0 37 1 0 1 1 0 8 0 amappl10 152 18 0 18 1 0 1 1 0 8 1 amappl9 144 255 0 255 1 0 1 1 0 8 1 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 121 0 110 1 0 1 1 0 8 0 amappl6 120 195 0 191 1 0 1 1 0 8 0 amappl5 112 121 0 114 1 0 1 1 0 8 0 amappl4 104 280 0 264 1 0 1 1 0 8 0 amappl3 96 6781 0 6686 4 0 4 4 0 8 0 amappl2 88 680 0 624 2 0 2 2 0 8 0 amappl1 80 12586 0 12043 14 0 14 14 0 8 1 amappl 88 9351 0 9199 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 7 0 7 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 125 0 2 3 0 3 3 0 8 0 uaddrrnd 24 1247 0 1220 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1247 0 1220 1 0 1 1 0 8 0 vmmpekpl 168 10640 0 10601 2 0 2 2 0 8 0 vmmpepl 168 83569 0 81763 106 0 106 106 0 357 16 vmsppl 368 1246 0 1220 4 0 4 4 0 8 1 rwobjpl 40 27566 0 22524 52 0 52 52 0 8 0 pdppl 4096 2500 0 2440 106 40 66 80 0 8 6 pvpl 32 574495 0 564313 147 0 147 147 0 265 40 pmappl 216 1246 0 1220 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 401 0 42 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83338915) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a053,ffffffff832ce8e1,1f5,ffffffff833308f4) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002e52a5b0) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a7f8020) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003994f040) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b4025f8,41,fffffd8007bfb820,ffff80002a7f8020) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b83ccb0,ffff80002a7f8020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b83ccb0,ffff80002a7f8020) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7f8020) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7f8020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7f8020,ffff80003994f3a0,ffff80003994f2f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003994f3a0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003994f3a0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78bca3a73820, count: -16 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83338915) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff8337a053,ffffffff832ce8e1,1f5,ffffffff833308f4) at __assert+0x29 sys/kern/subr_prf.c:-1 pipex_unlink_session_locked(ffff80002e52a5b0) at pipex_unlink_session_locked+0x402 pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 pipex_rele_session sys/net/pipex.c:-1 [inline] pipex_destroy_all_sessions(ffff800001466000) at pipex_destroy_all_sessions+0xd9 sys/net/pipex.c:153 pppacclose(637e,41,2000,ffff80002a7f8020) at pppacclose+0x16f sys/net/if_pppx.c:1335 spec_close(ffff80003994f040) at spec_close+0x417 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806b4025f8,41,fffffd8007bfb820,ffff80002a7f8020) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806b83ccb0,ffff80002a7f8020) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd806b83ccb0,ffff80002a7f8020) at fdrop+0x121 sys/kern/kern_descrip.c:1280 closef(fffffd806b83ccb0,ffff80002a7f8020) at closef+0x190 sys/kern/kern_descrip.c:1264 fdfree(ffff80002a7f8020) at fdfree+0x115 sys/kern/kern_descrip.c:1195 exit1(ffff80002a7f8020,b,0,1) at exit1+0x576 sys/kern/kern_exit.c:215 sys_exit(ffff80002a7f8020,ffff80003994f3a0,ffff80003994f2f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003994f3a0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003994f3a0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78bca3a73820, count: -16