panic: kernel diagnostic assertion "!ISSET(rt->rt_flags, RTF_LOCAL)" failed: file "/syzkaller/managers/main/kernel/sys/netinet6/nd6.c", line 685 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d383) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e2473,ffffffff828addbc,2ad,ffffffff828aad51) at __assert+0x29 sys/kern/subr_prf.c:157 nd6_free(fffffd80736ad548) at nd6_free+0x1f4 sys/netinet6/nd6.c:685 nd6_purge(ffff800000e98800) at nd6_purge+0xf6 sys/netinet6/nd6.c:486 in6_ifdetach(ffff800000e98800) at in6_ifdetach+0xa8 sys/netinet6/in6_ifattach.c:437 if_detach(ffff800000e98800) at if_detach+0x237 sys/net/if.c:1220 tun_clone_destroy(ffff800000e98800) at tun_clone_destroy+0x1ce sys/net/if_tun.c:339 if_clone_destroy(ffff8000377e7880) at if_clone_destroy+0x132 sys/net/if.c:1384 tun_dev_close(5d02,7) at tun_dev_close+0x141 sys/net/if_tun.c:521 spec_close(ffff8000377e7950) at spec_close+0x2d4 sys/kern/spec_vnops.c:538 VOP_CLOSE(fffffd8073304020,7,fffffd807f7d7548,ffff80002a6e42b0) at VOP_CLOSE+0xe2 sys/kern/vfs_vops.c:156 vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 sys/kern/vfs_vnops.c:609 fdrop(fffffd807544fca8,ffff80002a6e42b0) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 end trace frame: 0xffff8000377e7ad0, 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 "!ISSET(rt->rt_flags, RTF_LOCAL)" failed: file "/syzkaller/managers/main/kernel/sys/netinet6/nd6.c", line 685 ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d383) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e2473,ffffffff828addbc,2ad,ffffffff828aad51) at __assert+0x29 sys/kern/subr_prf.c:157 nd6_free(fffffd80736ad548) at nd6_free+0x1f4 sys/netinet6/nd6.c:685 nd6_purge(ffff800000e98800) at nd6_purge+0xf6 sys/netinet6/nd6.c:486 in6_ifdetach(ffff800000e98800) at in6_ifdetach+0xa8 sys/netinet6/in6_ifattach.c:437 if_detach(ffff800000e98800) at if_detach+0x237 sys/net/if.c:1220 tun_clone_destroy(ffff800000e98800) at tun_clone_destroy+0x1ce sys/net/if_tun.c:339 if_clone_destroy(ffff8000377e7880) at if_clone_destroy+0x132 sys/net/if.c:1384 tun_dev_close(5d02,7) at tun_dev_close+0x141 sys/net/if_tun.c:521 spec_close(ffff8000377e7950) at spec_close+0x2d4 sys/kern/spec_vnops.c:538 VOP_CLOSE(fffffd8073304020,7,fffffd807f7d7548,ffff80002a6e42b0) at VOP_CLOSE+0xe2 sys/kern/vfs_vops.c:156 vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 sys/kern/vfs_vnops.c:609 fdrop(fffffd807544fca8,ffff80002a6e42b0) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807544fca8,ffff80002a6e42b0) at closef+0x11b sys/kern/kern_descrip.c:1258 fdfree(ffff80002a6e42b0) at fdfree+0xe3 sys/kern/kern_descrip.c:1190 exit1(ffff80002a6e42b0,0,9,1) at exit1+0x371 sys/kern/kern_exit.c:199 sigexit(ffff80002a6e42b0,9) at sigexit+0xcd sys/kern/kern_sig.c:1594 postsig(ffff80002a6e42b0,9,ffff8000377e7d28) at postsig+0x554 sys/kern/kern_sig.c:1521 userret(ffff80002a6e42b0) at userret+0x14e sys/kern/kern_sig.c:2017 syscall(ffff8000377e7e60) at syscall+0x7e8 mi_syscall_return sys/sys/syscall_mi.h:207 [inline] syscall(ffff8000377e7e60) at syscall+0x7e8 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c411075cde0, count: -22 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff8000377e7590 rbx 0xfffffd8069ea94e0 rdx 0 rcx 0 rax 0xffff80002a6e42b0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x37c66624c739255a r11 0xf9a25ef8f5ae5af7 r12 0 r13 0x200000 acpi_pdirpa+0x1ebe71 r14 0 r15 0x1 rip 0xffffffff8145b06c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff8000377e7580 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb> show proc PROC (syz-executor.2) tid=338735 pid=16860 tcnt=1 stat=onproc flags process=800000a proc=2000 runpri=32, usrpri=51, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002f51f750,0xffff80002a62ca60 process=0xffff8000ffff7250 user=0xffff8000377e2000, vmspace=0xfffffd80696236c8 estcpu=1, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 24821 356425 0 0 3 0x14200 acct acct 28336 253495 65437 0 2 0x8000002 syz-executor.7 69801 95301 65437 0 2 0x8000002 syz-executor.5 65644 251908 65437 0 2 0x8000002 syz-executor.3 3991 391616 0 0 3 0x14200 bored sosplice 65437 513486 63793 0 3 0x1a000082 thrsleep syz-fuzzer 65437 226431 63793 0 3 0x1e000082 thrsleep syz-fuzzer 65437 211597 63793 0 3 0x1e000082 wait syz-fuzzer 65437 458163 63793 0 3 0x1e000082 wait syz-fuzzer 65437 384943 63793 0 3 0x1e000082 wait syz-fuzzer 65437 54850 63793 0 3 0x1e000082 thrsleep syz-fuzzer 65437 101452 63793 0 3 0x1e000082 wait syz-fuzzer 65437 39280 63793 0 3 0x1e000082 wait syz-fuzzer 65437 448177 63793 0 3 0x1e000082 wait syz-fuzzer 65437 218683 63793 0 3 0x1e000082 thrsleep syz-fuzzer 65437 325138 63793 0 3 0x1e000082 wait syz-fuzzer 65437 63196 63793 0 3 0x1e000082 wait syz-fuzzer 65437 300223 63793 0 3 0x1e000082 kqread syz-fuzzer 65437 422310 63793 0 3 0x1e000082 thrsleep syz-fuzzer 63793 513150 37199 0 3 0x810008a sigsusp ksh 37199 92836 27674 0 3 0x1800009a kqread sshd 94593 253184 1 0 3 0x18100083 ttyin getty 27674 122481 1 0 3 0x18000088 kqread sshd 70339 148074 83712 73 3 0x19100010 ffs_fsync syslogd 83712 108102 1 0 3 0x18100082 sbwait syslogd 45674 5139 1 0 3 0x18100080 kqread resolvd 65900 398341 78505 77 3 0x18100092 kqread dhcpleased 7029 369069 78505 77 3 0x18100092 kqread dhcpleased 78505 345215 1 0 3 0x18000080 kqread dhcpleased 94794 172737 0 0 3 0x14200 bored smr 81152 96748 0 0 2 0x14200 zerothread 15020 283619 0 0 3 0x14200 aiodoned aiodoned 90808 197573 0 0 2 0x14600 update 84564 242459 0 0 3 0x14200 cleaner cleaner 75331 170354 0 0 2 0x14200 reaper 7709 299432 0 0 3 0x14200 pgdaemon pagedaemon 23988 425230 0 0 3 0x14200 bored viomb 97774 130340 0 0 3 0x40014200 acpi0 acpi0 60704 136372 0 0 3 0x14200 bored softnet3 92183 226179 0 0 3 0x14200 bored softnet2 99717 163251 0 0 3 0x14200 bored softnet1 3147 394093 0 0 3 0x14200 bored softnet0 58151 379407 0 0 2 0x14200 systqmp 6000 513091 0 0 3 0x14200 bored systq 61635 386884 0 0 2 0x40014200 softclock 27160 377597 0 0 3 0x40014200 idle0 1 49401 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10172 6412K 6877K 166960K 12876 0 pcb 17 12K 12K 166960K 152 0 rtable 210 6K 8K 166960K 1116 0 pf 29 8K 9K 166960K 98 0 ifaddr 39 10K 11K 166960K 149 0 ifgroup 50 2K 2K 166960K 169 0 sysctl 3 0K 0K 166960K 5 0 counters 30 17K 17K 166960K 62 0 ioctlops 0 0K 2K 166960K 130 0 iov 0 0K 24K 166960K 198 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1420 89K 90K 166960K 2625 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 52 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 117 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 10 33K 97K 166960K 1491 0 sigio 0 0K 0K 166960K 45 0 proc 58 59K 116K 166960K 1176 0 subproc 104 6K 6K 166960K 390 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 147 0 in_multi 83 6K 7K 166960K 368 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 1 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 750 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 274 103K 111K 166960K 14234 0 UVM aobj 131 6K 6K 166960K 146 0 pinsyscall 30 60K 100K 166960K 3202 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 85 0 NDP 11 0K 2K 166960K 103 0 temp 74 6812K 6891K 166960K 56644 0 kqueue 12 18K 26K 166960K 199 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 120 251 0 248 3 0 3 3 0 8 2 rtentry 112 380 0 285 4 0 4 4 0 8 0 unpcb 144 846 0 833 3 0 3 3 0 8 2 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpqe 32 17 0 17 1 0 1 1 0 8 1 tcpcb 808 398 0 393 8 0 8 8 0 8 7 arp 88 68 0 52 1 0 1 1 0 8 0 ipq 40 4 0 3 1 0 1 1 0 8 0 ipqe 40 56 0 55 1 0 1 1 0 8 0 inpcb 360 1391 0 1383 8 0 8 8 0 8 7 nd6 104 99 0 76 1 0 1 1 0 8 0 pkpcb 40 10 0 10 1 0 1 1 0 8 1 kcovpl 48 30 0 22 1 0 1 1 0 8 0 ppxss 1072 7 0 7 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1461 0 1034 40 11 29 29 0 8 0 art_table 32 1462 0 1034 4 0 4 4 0 8 0 art_node 16 375 0 277 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 24 1 0 1 1 0 8 0 semupl 112 4 0 4 1 0 1 1 0 8 1 semapl 112 113 0 103 1 0 1 1 0 8 0 shmpl 112 143 0 15 4 0 4 4 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3498 0 1986 96 0 96 96 0 8 0 ffsino 240 3498 0 1986 90 0 90 90 0 8 0 nchpl 144 5591 0 3861 66 0 66 66 0 8 0 uvmvnodes 80 4507 0 0 92 0 92 92 0 8 0 vnodes 216 4507 0 0 251 0 251 251 0 8 0 namei 1024 20533 0 20533 2 0 2 2 0 8 2 vcpupl 3904 4 0 1 1 0 1 1 0 8 0 vmpool 664 11 0 8 1 0 1 1 0 8 0 kstatmem 264 86 0 64 2 0 2 2 0 8 0 scsiplug 72 6 0 6 1 0 1 1 0 8 1 scxspl 216 38322 0 38321 8 0 8 8 1 8 7 plimitpl 152 190 0 174 1 0 1 1 0 8 0 sigapl 424 1766 0 1722 9 0 9 9 0 8 2 futexpl 64 19044 0 19044 1 0 1 1 0 8 1 knotepl 120 6030 0 5958 12 0 12 12 0 8 8 kqueuepl 184 358 0 350 1 0 1 1 0 8 0 pipepl 288 387 0 364 7 0 7 7 0 8 4 fdescpl 432 1728 0 1707 5 0 5 5 0 8 1 filepl 120 10417 0 10194 16 1 15 16 0 8 7 lockfpl 104 254 0 252 1 0 1 1 0 8 0 lockfspl 48 107 0 105 1 0 1 1 0 8 0 sessionpl 144 45 0 29 1 0 1 1 0 8 0 pgrppl 48 65 0 49 1 0 1 1 0 8 0 ucredpl 104 1673 0 1663 1 0 1 1 0 8 0 zombiepl 144 1732 0 1722 1 0 1 1 0 8 0 processpl 1072 1766 0 1722 5 0 5 5 0 8 0 procpl 656 3103 0 3041 9 0 9 9 0 8 2 sosppl 168 13 0 13 1 0 1 1 0 8 1 sockpl 504 2518 0 2494 21 10 11 18 0 8 8 mcl64k 65536 3 0 3 1 0 1 1 0 8 1 mcl12k 12288 14 0 14 1 0 1 1 0 8 1 mcl9k 9216 17 0 17 1 0 1 1 0 8 1 mcl8k 8192 20 0 20 1 0 1 1 0 8 1 mcl4k 4096 10 0 10 1 0 1 1 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 26343 0 26245 38 18 20 38 0 8 6 mtagpl 96 32 0 29 1 0 1 1 0 8 0 mbufpl 256 76771 0 76611 83 57 26 65 0 8 8 bufpl 280 9838 0 2888 497 0 497 497 0 8 0 anonpl 24 367002 0 356303 66 0 66 66 0 188 0 amapchunkpl 152 47538 0 46644 38 0 38 38 0 158 0 amappl16 200 8500 0 8372 23 7 16 19 0 8 8 amappl15 192 15 0 15 1 0 1 1 0 8 1 amappl14 184 212 0 201 2 0 2 2 0 8 1 amappl13 176 17 0 17 1 0 1 1 0 8 1 amappl12 168 2683 0 2656 2 0 2 2 0 8 0 amappl11 160 67 0 57 1 0 1 1 0 8 0 amappl10 152 63 0 53 1 0 1 1 0 8 0 amappl9 144 163 0 162 1 0 1 1 0 8 0 amappl8 136 162 0 133 2 0 2 2 0 8 0 amappl7 128 65 0 52 1 0 1 1 0 8 0 amappl6 120 665 0 650 2 0 2 2 0 8 1 amappl5 112 264 0 252 1 0 1 1 0 8 0 amappl4 104 654 0 625 2 0 2 2 0 8 1 amappl3 96 9328 0 9253 3 0 3 3 0 8 0 amappl2 88 2216 0 2144 4 0 4 4 0 8 2 amappl1 80 15045 0 14544 22 2 20 22 0 8 8 amappl 88 13489 0 13305 6 0 6 6 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 72 145 0 15 3 0 3 3 0 8 0 uaddrrnd 24 1739 0 1711 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1739 0 1711 1 0 1 1 0 8 0 vmmpekpl 168 16802 0 16739 4 0 4 4 0 8 0 vmmpepl 168 128057 0 126276 112 0 112 112 0 357 27 vmsppl 344 1738 0 1710 4 0 4 4 0 8 0 rwobjpl 24 41776 0 36077 35 0 35 35 0 8 0 pdppl 4096 3484 0 3423 194 127 67 83 0 8 6 pvpl 32 915414 0 897857 361 14 347 361 0 265 194 pmappl 216 1738 0 1710 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 590 0 223 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d383) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e2473,ffffffff828addbc,2ad,ffffffff828aad51) at __assert+0x29 sys/kern/subr_prf.c:157 nd6_free(fffffd80736ad548) at nd6_free+0x1f4 sys/netinet6/nd6.c:685 nd6_purge(ffff800000e98800) at nd6_purge+0xf6 sys/netinet6/nd6.c:486 in6_ifdetach(ffff800000e98800) at in6_ifdetach+0xa8 sys/netinet6/in6_ifattach.c:437 if_detach(ffff800000e98800) at if_detach+0x237 sys/net/if.c:1220 tun_clone_destroy(ffff800000e98800) at tun_clone_destroy+0x1ce sys/net/if_tun.c:339 if_clone_destroy(ffff8000377e7880) at if_clone_destroy+0x132 sys/net/if.c:1384 tun_dev_close(5d02,7) at tun_dev_close+0x141 sys/net/if_tun.c:521 spec_close(ffff8000377e7950) at spec_close+0x2d4 sys/kern/spec_vnops.c:538 VOP_CLOSE(fffffd8073304020,7,fffffd807f7d7548,ffff80002a6e42b0) at VOP_CLOSE+0xe2 sys/kern/vfs_vops.c:156 vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 sys/kern/vfs_vnops.c:609 fdrop(fffffd807544fca8,ffff80002a6e42b0) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807544fca8,ffff80002a6e42b0) at closef+0x11b sys/kern/kern_descrip.c:1258 fdfree(ffff80002a6e42b0) at fdfree+0xe3 sys/kern/kern_descrip.c:1190 exit1(ffff80002a6e42b0,0,9,1) at exit1+0x371 sys/kern/kern_exit.c:199 sigexit(ffff80002a6e42b0,9) at sigexit+0xcd sys/kern/kern_sig.c:1594 postsig(ffff80002a6e42b0,9,ffff8000377e7d28) at postsig+0x554 sys/kern/kern_sig.c:1521 userret(ffff80002a6e42b0) at userret+0x14e sys/kern/kern_sig.c:2017 syscall(ffff8000377e7e60) at syscall+0x7e8 mi_syscall_return sys/sys/syscall_mi.h:207 [inline] syscall(ffff8000377e7e60) at syscall+0x7e8 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c411075cde0, count: -22 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d383) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e2473,ffffffff828addbc,2ad,ffffffff828aad51) at __assert+0x29 sys/kern/subr_prf.c:157 nd6_free(fffffd80736ad548) at nd6_free+0x1f4 sys/netinet6/nd6.c:685 nd6_purge(ffff800000e98800) at nd6_purge+0xf6 sys/netinet6/nd6.c:486 in6_ifdetach(ffff800000e98800) at in6_ifdetach+0xa8 sys/netinet6/in6_ifattach.c:437 if_detach(ffff800000e98800) at if_detach+0x237 sys/net/if.c:1220 tun_clone_destroy(ffff800000e98800) at tun_clone_destroy+0x1ce sys/net/if_tun.c:339 if_clone_destroy(ffff8000377e7880) at if_clone_destroy+0x132 sys/net/if.c:1384 tun_dev_close(5d02,7) at tun_dev_close+0x141 sys/net/if_tun.c:521 spec_close(ffff8000377e7950) at spec_close+0x2d4 sys/kern/spec_vnops.c:538 VOP_CLOSE(fffffd8073304020,7,fffffd807f7d7548,ffff80002a6e42b0) at VOP_CLOSE+0xe2 sys/kern/vfs_vops.c:156 vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd807544fca8,ffff80002a6e42b0) at vn_closefile+0xd5 sys/kern/vfs_vnops.c:609 fdrop(fffffd807544fca8,ffff80002a6e42b0) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807544fca8,ffff80002a6e42b0) at closef+0x11b sys/kern/kern_descrip.c:1258 fdfree(ffff80002a6e42b0) at fdfree+0xe3 sys/kern/kern_descrip.c:1190 exit1(ffff80002a6e42b0,0,9,1) at exit1+0x371 sys/kern/kern_exit.c:199 sigexit(ffff80002a6e42b0,9) at sigexit+0xcd sys/kern/kern_sig.c:1594 postsig(ffff80002a6e42b0,9,ffff8000377e7d28) at postsig+0x554 sys/kern/kern_sig.c:1521 userret(ffff80002a6e42b0) at userret+0x14e sys/kern/kern_sig.c:2017 syscall(ffff8000377e7e60) at syscall+0x7e8 mi_syscall_return sys/sys/syscall_mi.h:207 [inline] syscall(ffff8000377e7e60) at syscall+0x7e8 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7c411075cde0, count: -22