panic: kernel diagnostic assertion "refs != ~0" failed: file "/syzkaller/managers/main/kernel/sys/kern/kern_synch.c", line 951 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(ffffffff8343396e) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff833e2ea8,ffffffff8332b815,3b7,ffffffff833e4984) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003693a5e0,ffffffff83331121) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:952 pppx_if_destroy(205b9a,ffff80003693a5d8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:794 pppxclose(205b9a,1,2000,ffff80003c969c68) at pppxclose+0xa0 sys/net/if_pppx.c:541 spec_close(ffff80003ca03880) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807e0dd488,1,fffffd8007bfb4e0,ffff80003c969c68) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd8078daf358,ffff80003c969c68) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8078daf358,ffff80003c969c68) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c969c68) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003c969c68,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c969c68,ffff80003ca03bf0,ffff80003ca03b40) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80003ca03be0, 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 "refs != ~0" failed: file "/syzkaller/managers/main/kernel/sys/kern/kern_synch.c", line 951 ddb> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343396e) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff833e2ea8,ffffffff8332b815,3b7,ffffffff833e4984) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003693a5e0,ffffffff83331121) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:952 pppx_if_destroy(205b9a,ffff80003693a5d8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:794 pppxclose(205b9a,1,2000,ffff80003c969c68) at pppxclose+0xa0 sys/net/if_pppx.c:541 spec_close(ffff80003ca03880) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807e0dd488,1,fffffd8007bfb4e0,ffff80003c969c68) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd8078daf358,ffff80003c969c68) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8078daf358,ffff80003c969c68) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c969c68) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003c969c68,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c969c68,ffff80003ca03bf0,ffff80003ca03b40) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ca03bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca03bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77ff45db25d0, count: -16 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80003ca03660 rbx 0xffffffff827a1e10 pppxclose rdx 0 rcx 0 rax 0xffff80003c969c68 r8 0 r9 0x8080808080808080 r10 0xb6b50928e1a8909f r11 0x313ba75d29a89070 r12 0 r13 0 r14 0 r15 0x1 rip 0xffffffff8306eaf5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003ca03650 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb> show proc PROC (syz-executor) tid=308402 pid=5541 tcnt=0 stat=onproc flags process=1018 proc=2000 runpri=32, usrpri=70, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80003c969c68 scnt=-1 ecnt=1 forw=0xffffffffffffffff, list=0xffff80003c973c60,0xffff80003c9682d8 process=0xffff800031528920 user=0xffff80003c9fe000, vmspace=0xfffffd806ba7fb90 estcpu=20, cpticks=1, pctcpu=0.1, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 90574 389015 68803 0 2 0 syz-executor 90574 276995 68803 0 2 0x4000000 syz-executor 24587 238808 91666 0 2 0xc80 syz-executor 24587 225940 91666 0 3 0x4000080 kqsel syz-executor 24587 339092 91666 0 3 0x4000080 fsleep syz-executor 65235 485093 26279 0 2 0 syz-executor 65235 364863 26279 0 3 0x4000000 smrbar syz-executor 65235 503227 26279 0 2 0x4000000 syz-executor 65235 319882 26279 0 3 0x4000080 fsleep syz-executor 93098 113945 38672 0 2 0 syz-executor 93098 277419 38672 0 3 0x4000080 fsleep syz-executor 93098 92143 38672 0 3 0x4000080 fsleep syz-executor 59129 313866 13515 0 2 0 syz-executor 75837 375098 0 0 3 0x14280 nfsidl nfsio 11810 478721 0 0 3 0x14280 nfsidl nfsio 48429 417993 0 0 3 0x14280 nfsidl nfsio 92718 130100 0 0 3 0x14280 nfsidl nfsio 85268 412339 0 0 3 0x14280 nfsidl nfsio 68570 450925 0 0 3 0x14280 nfsidl nfsio 66836 131817 0 0 3 0x14280 nfsidl nfsio 52182 335409 0 0 3 0x14280 nfsidl nfsio 15984 492793 0 0 3 0x14280 nfsidl nfsio 16053 319088 0 0 3 0x14280 nfsidl nfsio 75884 155201 0 0 3 0x14280 nfsidl nfsio 94489 8329 0 0 3 0x14280 nfsidl nfsio 17503 451166 0 0 3 0x14280 nfsidl nfsio 12104 92348 0 0 3 0x14280 nfsidl nfsio 4851 178746 0 0 3 0x14280 nfsidl nfsio 67134 323446 0 0 3 0x14280 nfsidl nfsio 12061 270598 0 0 3 0x14280 nfsidl nfsio 14505 503187 0 0 3 0x14280 nfsidl nfsio 98048 307656 0 0 3 0x14280 nfsidl nfsio 84034 53981 0 0 3 0x14280 nfsidl nfsio 17787 339959 0 0 3 0x14200 bored sosplice 26279 83787 16601 0 2 0xc82 syz-executor 38672 330013 16601 0 2 0xc82 syz-executor 91666 436744 16601 0 2 0xc82 syz-executor 27316 451767 16601 0 3 0x82 nanoslp syz-executor 17683 261465 16601 0 2 0x2 syz-executor 68803 482749 16601 0 3 0x82 nanoslp syz-executor 52459 46024 16601 0 2 0xc82 syz-executor 13515 64678 16601 0 2 0x2 syz-executor 16601 220242 30515 0 3 0x82 kqread syz-executor 30515 304812 41712 0 3 0x10008a sigsusp ksh 41712 443234 80904 0 3 0x98 kqread sshd-session 80904 35304 51466 0 3 0x92 kqread sshd-session 68571 437830 1 0 3 0x100083 ttyin getty 51466 394287 1 0 3 0x88 kqread sshd 49862 26248 4885 73 3 0x1100090 kqread syslogd 4885 415250 1 0 3 0x100082 sbwait syslogd 57335 263109 1 0 3 0x100080 kqread resolvd 47018 214062 65856 77 3 0x100092 kqread dhcpleased 28505 308108 65856 77 3 0x100092 kqread dhcpleased 65856 469447 1 0 3 0x80 kqread dhcpleased 97733 291498 0 0 3 0x14200 bored smr 28287 450221 0 0 2 0x14200 zerothread 90907 331362 0 0 3 0x14200 aiodoned aiodoned 34667 38363 0 0 3 0x14200 syncer update 88824 114080 0 0 3 0x14200 cleaner cleaner 68484 245595 0 0 3 0x14200 reaper reaper 95342 333144 0 0 3 0x14200 pgdaemon pagedaemon 64838 498709 0 0 3 0x14200 bored viomb 88812 306767 0 0 3 0x40014200 acpi0 acpi0 78243 409707 0 0 3 0x14200 bored softnet7 96736 453987 0 0 3 0x14200 bored softnet6 67235 302827 0 0 3 0x14200 bored softnet5 41899 30347 0 0 3 0x14200 bored softnet4 893 87303 0 0 3 0x14200 bored softnet3 89835 180453 0 0 3 0x14200 bored softnet2 15381 320259 0 0 3 0x14200 bored softnet1 12160 205183 0 0 3 0x14200 bored softnet0 4559 510482 0 0 3 0x14200 smrbar systqmp 77450 171046 0 0 3 0x14200 bored systq 23012 472009 0 0 3 0x40014200 tmoslp softclock 67073 12668 0 0 3 0x40014200 idle0 1 93468 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 11043K 11316K 166960K 11499 0 pcb 18 12K 12K 166960K 51 0 rtable 173 6K 6K 166960K 325 0 pf 35 13K 17K 166960K 106 0 ifaddr 43 7K 7K 166960K 56 0 ifgroup 59 2K 2K 166960K 67 0 sysctl 3 1K 9K 166960K 7 0 counters 36 18K 18K 166960K 39 0 ioctlops 0 0K 4K 166960K 211 0 iov 0 0K 16K 166960K 79 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1402 88K 89K 166960K 1549 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 5 0K 1K 166960K 12 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 299 0 sigio 0 0K 0K 166960K 4 0 proc 61 67K 116K 166960K 488 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 20 0 in_multi 81 5K 7K 166960K 121 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 358 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 217 150K 162K 166960K 4181 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 38 76K 96K 166960K 1336 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 7 0 NDP 13 0K 2K 166960K 32 0 temp 38 8662K 8728K 166960K 8435 0 kqueue 13 20K 26K 166960K 48 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 48 0 45 1 0 1 1 0 8 0 rtentry 136 103 0 35 4 0 4 4 0 8 0 unpcb 144 106 0 90 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 736 50 0 45 2 0 2 2 0 8 1 arp 88 12 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 328 228 0 216 7 0 7 7 0 8 5 ip6q 72 2 0 2 1 0 1 1 0 8 1 ip6af 40 4 0 4 1 0 1 1 0 8 1 nd6 104 17 0 5 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 4 0 2 1 0 1 1 0 8 0 pppxif 1384 2 0 0 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 482 0 133 28 0 28 28 0 8 3 art_table 40 484 0 133 5 0 5 5 0 8 0 art_node 32 103 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 8 0 5 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1839 0 335 95 0 95 95 0 8 0 ffsino 256 1839 0 335 95 0 95 95 0 8 0 nchpl 144 2241 0 559 63 0 63 63 0 8 0 uvmvnodes 80 2066 0 0 43 0 43 43 0 8 0 vnodes 216 2066 0 0 115 0 115 115 0 8 0 namei 1024 7100 0 7100 2 0 2 2 0 8 2 kstatmem 264 32 0 6 2 0 2 2 0 8 0 scxspl 216 7822 0 7822 8 0 8 8 1 8 8 plimitpl 152 112 0 96 1 0 1 1 0 8 0 sigapl 424 606 0 536 8 0 8 8 0 8 0 knotepl 120 9619 0 9572 9 0 9 9 0 8 7 kqueuepl 184 72 0 61 1 0 1 1 0 8 0 pipepl 304 141 0 112 5 0 5 5 0 8 2 fdescpl 448 564 0 535 5 0 5 5 0 8 1 filepl 120 2385 0 2162 11 0 11 11 0 8 3 lockfpl 104 100 0 96 1 0 1 1 0 8 0 lockfspl 48 46 0 42 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 104 218 0 206 1 0 1 1 0 8 0 zombiepl 144 538 0 536 1 0 1 1 0 8 0 processpl 1168 606 0 536 6 0 6 6 0 8 0 procpl 656 849 0 771 8 0 8 8 0 8 0 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 552 395 0 364 7 0 7 7 0 8 4 mcl64k 65536 8 0 8 1 0 1 1 0 8 1 mcl16k 16384 7 0 7 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 77 0 77 1 0 1 1 0 8 1 mcl4k 4096 2659 0 2608 15 0 15 15 0 8 8 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 466 0 463 3 0 3 3 0 8 2 mtagpl 96 9 0 4 1 0 1 1 0 8 0 mbufpl 256 5632 0 5475 13 0 13 13 0 8 0 bufpl 280 3101 0 117 214 0 214 214 0 8 0 anonpl 24 90798 0 87723 44 0 44 44 0 187 20 amapchunkpl 152 12577 0 12130 30 0 30 30 0 158 10 amappl16 200 698 0 673 3 0 3 3 0 8 0 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 103 0 92 1 0 1 1 0 8 0 amappl13 176 19 0 19 1 0 1 1 0 8 1 amappl12 168 1182 0 1154 3 0 3 3 0 8 1 amappl11 160 44 0 34 1 0 1 1 0 8 0 amappl10 152 143 0 143 1 0 1 1 0 8 1 amappl9 144 267 0 267 1 0 1 1 0 8 1 amappl8 136 17 0 16 1 0 1 1 0 8 0 amappl7 128 98 0 88 1 0 1 1 0 8 0 amappl6 120 171 0 168 1 0 1 1 0 8 0 amappl5 112 119 0 113 1 0 1 1 0 8 0 amappl4 104 268 0 251 1 0 1 1 0 8 0 amappl3 96 2203 0 2101 4 0 4 4 0 8 0 amappl2 88 612 0 557 2 0 2 2 0 8 0 amappl1 80 8748 0 8208 14 0 14 14 0 8 1 amappl 88 3500 0 3347 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 6 0 6 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 564 0 535 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 564 0 535 1 0 1 1 0 8 0 vmmpekpl 168 6069 0 6039 2 0 2 2 0 8 0 vmmpepl 168 40534 0 38723 85 0 85 85 0 357 3 vmsppl 368 563 0 535 4 0 4 4 0 8 1 rwobjpl 40 14524 0 11628 30 0 30 30 0 8 0 pdppl 4096 1134 0 1070 96 30 66 82 0 8 2 pvpl 32 251127 0 242722 116 0 116 116 0 265 28 pmappl 216 563 0 535 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 376 0 30 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(ffffffff8343396e) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff833e2ea8,ffffffff8332b815,3b7,ffffffff833e4984) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003693a5e0,ffffffff83331121) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:952 pppx_if_destroy(205b9a,ffff80003693a5d8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:794 pppxclose(205b9a,1,2000,ffff80003c969c68) at pppxclose+0xa0 sys/net/if_pppx.c:541 spec_close(ffff80003ca03880) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807e0dd488,1,fffffd8007bfb4e0,ffff80003c969c68) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd8078daf358,ffff80003c969c68) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8078daf358,ffff80003c969c68) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c969c68) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003c969c68,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c969c68,ffff80003ca03bf0,ffff80003ca03b40) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ca03bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca03bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77ff45db25d0, 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(ffffffff8343396e) at panic+0x1cf sys/kern/subr_prf.c:198 __assert(ffffffff833e2ea8,ffffffff8332b815,3b7,ffffffff833e4984) at __assert+0x29 sys/kern/subr_prf.c:-1 refcnt_finalize(ffff80003693a5e0,ffffffff83331121) at refcnt_finalize+0x1c8 sys/kern/kern_synch.c:952 pppx_if_destroy(205b9a,ffff80003693a5d8) at pppx_if_destroy+0x3d sys/net/if_pppx.c:794 pppxclose(205b9a,1,2000,ffff80003c969c68) at pppxclose+0xa0 sys/net/if_pppx.c:541 spec_close(ffff80003ca03880) at spec_close+0x412 sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807e0dd488,1,fffffd8007bfb4e0,ffff80003c969c68) at VOP_CLOSE+0x12a sys/kern/vfs_vops.c:156 vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd8078daf358,ffff80003c969c68) at vn_closefile+0x11d sys/kern/vfs_vnops.c:615 fdrop(fffffd8078daf358,ffff80003c969c68) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd8078daf358,ffff80003c969c68) at closef+0x190 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c969c68) at fdfree+0x115 sys/kern/kern_descrip.c:1182 exit1(ffff80003c969c68,0,0,1) at exit1+0x59c sys/kern/kern_exit.c:215 sys_exit(ffff80003c969c68,ffff80003ca03bf0,ffff80003ca03b40) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003ca03bf0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80003ca03bf0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77ff45db25d0, count: -16