panic: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1078 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *172368 68096 0 0x2 0 0K ifconfig 227684 40369 73 0x1100010 0x1 1 syslogd db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e6391) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309ac52,ffffffff83011965,436,ffffffff83008d14) at __assert+0x29 rtrequest(1,ffff8000371aed28,4,ffff8000371aedd0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff8000012c3b00,840100,ffff8000012c3b58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000012a4800,ffff8000012c3b00,ffff8000371af040,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000012a4800,ffff8000012c3b00,ffff8000371af040,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000371af030,ffff8000012a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001288540,8040691a,ffff8000371af030,ffff80003138a2d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001288540,8040691a,ffff8000371af030,ffff80003138a2d8) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80003138a2d8,ffff8000371af210,ffff8000371af160) at sys_ioctl+0x67c syscall(ffff8000371af210) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371af210) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7babc9515d70, count: 4 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: kernel diagnostic assertion "cifp != NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/net/route.c", line 1078 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff830e6391) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309ac52,ffffffff83011965,436,ffffffff83008d14) at __assert+0x29 rtrequest(1,ffff8000371aed28,4,ffff8000371aedd0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff8000012c3b00,840100,ffff8000012c3b58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000012a4800,ffff8000012c3b00,ffff8000371af040,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000012a4800,ffff8000012c3b00,ffff8000371af040,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000371af030,ffff8000012a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001288540,8040691a,ffff8000371af030,ffff80003138a2d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001288540,8040691a,ffff8000371af030,ffff80003138a2d8) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80003138a2d8,ffff8000371af210,ffff8000371af160) at sys_ioctl+0x67c syscall(ffff8000371af210) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371af210) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7babc9515d70, count: -11 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff8000371aeb20 rbx 0xffffffff8342ddbf cpu_info_full_primary+0x2dbf rdx 0 rcx 0xffff80003138a2d8 rax 0xffffffff8342cff0 cpu_info_full_primary+0x1ff0 r8 0 r9 0x8080808080808080 r10 0x80c478b240d508fd r11 0x1b783d35c34eb69f r12 0xffffffff8342dbc0 cpu_info_full_primary+0x2bc0 r13 0 r14 0 r15 0x1 rip 0xffffffff828911d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000371aeb10 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (ifconfig) tid=172368 pid=68096 tcnt=1 stat=onproc flags process=2 proc=0 runpri=50, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003138b490,0xffff80003138b9b0 process=0xffff8000371b9fc0 user=0xffff8000371aa000, vmspace=0xfffffd806afc71c0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 28645 484960 55306 0 2 0x40 syz-executor *68096 172368 2644 0 7 0x2 ifconfig 61205 375641 28856 0 2 0x100002 sh 2644 97882 14858 0 3 0x10008a sigsusp sh 55306 360051 3990 0 3 0x82 ppwait syz-executor 14858 326610 3990 0 3 0x82 wait syz-executor 28856 375850 3990 0 3 0x82 wait syz-executor 44124 331174 1 0 3 0x3000 suspend syz-executor 44124 32702 1 0 2 0x4081000 syz-executor 29832 457640 3990 0 3 0x82 piperd syz-executor 98716 46233 3990 0 3 0x82 piperd syz-executor 23653 253298 3990 0 3 0x82 piperd syz-executor 23042 367574 1 0 3 0x100083 ttyin getty 44727 375780 0 0 3 0x14280 nfsidl nfsio 22815 452293 0 0 3 0x14280 nfsidl nfsio 67578 59487 0 0 3 0x14280 nfsidl nfsio 69141 351176 0 0 3 0x14280 nfsidl nfsio 31473 466317 0 0 3 0x14280 nfsidl nfsio 11126 479151 0 0 3 0x14280 nfsidl nfsio 64112 298643 0 0 3 0x14280 nfsidl nfsio 15041 454053 0 0 3 0x14280 nfsidl nfsio 43380 463392 0 0 3 0x14280 nfsidl nfsio 86674 270676 0 0 3 0x14280 nfsidl nfsio 94775 513765 0 0 3 0x14280 nfsidl nfsio 17078 345052 0 0 3 0x14280 nfsidl nfsio 68040 219709 0 0 3 0x14280 nfsidl nfsio 69604 6210 0 0 3 0x14280 nfsidl nfsio 88382 48421 0 0 3 0x14280 nfsidl nfsio 86528 117876 0 0 3 0x14280 nfsidl nfsio 22630 359702 0 0 3 0x14280 nfsidl nfsio 93229 443130 0 0 3 0x14280 nfsidl nfsio 29010 32136 0 0 3 0x14280 nfsidl nfsio 62478 379033 0 0 3 0x14280 nfsidl nfsio 35833 458564 0 0 3 0x14200 bored sosplice 87783 18194 0 0 3 0x14200 acct acct 3990 345411 29397 0 3 0x82 wait syz-executor 29397 452604 86238 0 3 0x10008a sigsusp ksh 86238 407177 42099 0 3 0x98 kqread sshd-session 42099 294313 20059 0 3 0x92 kqread sshd-session 20059 233589 1 0 3 0x88 kqread sshd 32826 417742 13252 74 3 0x1100092 bpf pflogd 13252 348530 1 0 3 0x80 sbwait pflogd 40369 227684 99538 73 7 0x1100011 syslogd 99538 257719 1 0 3 0x100082 sbwait syslogd 45783 400069 1 0 3 0x100080 kqread resolvd 54524 296589 9683 77 3 0x100092 kqread dhcpleased 96833 98445 9683 77 3 0x100092 kqread dhcpleased 9683 365139 1 0 3 0x80 kqread dhcpleased 54212 345156 0 0 3 0x14200 bored smr 40217 312591 0 0 2 0x14200 zerothread 97451 157773 0 0 3 0x14200 aiodoned aiodoned 76512 222560 0 0 3 0x14200 syncer update 99056 197747 0 0 3 0x14200 cleaner cleaner 46094 25636 0 0 3 0x14200 reaper reaper 4222 55572 0 0 3 0x14200 pgdaemon pagedaemon 45148 415685 0 0 3 0x14200 bored viomb 14913 114912 0 0 3 0x40014200 acpi0 acpi0 42851 280335 0 0 3 0x40014200 idle1 21684 74453 0 0 3 0x14200 bored softnet3 95590 34494 0 0 3 0x14200 bored softnet2 51227 158480 0 0 3 0x14200 bored softnet1 49157 325128 0 0 3 0x14200 bored softnet0 3202 420459 0 0 3 0x14200 bored systqmp 62042 45769 0 0 3 0x14200 bored systq 30233 296587 0 0 3 0x14200 tmoslp softclockmp 60030 143720 0 0 2 0x40014200 softclock 5040 77409 0 0 3 0x40014200 idle0 1 317248 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 68096 (ifconfig) thread 0xffff80003138a2d8 (172368) Process 44124 (syz-executor) thread 0xffff80003138bc28 (32702) ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10193 11138K 11512K 166960K 13532 0 pcb 17 17K 21K 166960K 367 0 rtable 173 5K 7K 166960K 3168 0 pf 32 17K 19K 166960K 258 0 ifaddr 35 6K 8K 166960K 425 0 ifgroup 51 2K 2K 166960K 463 0 sysctl 3 0K 0K 166960K 3 0 counters 62 36K 36K 166960K 270 0 ioctlops 0 0K 4K 166960K 1710 0 iov 0 0K 24K 166960K 120 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1401 88K 89K 166960K 3634 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 60 0 dirhash 15 2K 2K 166960K 27 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 14 49K 93K 166960K 2805 0 sigio 0 0K 0K 166960K 36 0 proc 79 103K 140K 166960K 3193 0 subproc 104 6K 7K 166960K 1313 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 168 0 in_multi 67 5K 7K 166960K 1127 0 ether_multi 1 0K 0K 166960K 10 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 1735 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 190 71K 109K 166960K 22331 0 UVM aobj 41 6K 6K 166960K 44 0 pinsyscall 39 78K 106K 166960K 6233 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 104 0 NDP 11 0K 2K 166960K 311 0 temp 81 6824K 7075K 166960K 92226 0 kqueue 13 20K 30K 166960K 254 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 120 296 0 293 1 0 1 1 0 8 0 rtentry 112 1140 0 1062 8 4 4 4 0 8 0 unpcb 144 1156 0 1139 16 15 1 6 0 8 0 syncache 336 8 0 8 5 5 0 1 0 8 0 tcpqe 32 4 7 4 2 2 0 1 0 8 0 tcpcb 808 417 0 409 12 10 2 5 0 8 1 arp 120 208 0 191 1 0 1 1 0 8 0 inpcb 336 2027 0 2014 35 33 2 10 0 8 0 nd6 136 300 0 284 1 0 1 1 0 8 0 pkpcb 40 77 0 77 6 6 0 1 0 8 0 kcovpl 48 101 0 93 1 0 1 1 0 8 0 ppxss 1168 7 0 7 3 3 0 1 0 8 0 pffrag 232 31 0 27 2 1 1 1 0 482 0 pffrnode 88 30 0 26 2 1 1 1 0 8 0 pffrent 40 54 0 50 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 pfstitem 24 226 0 193 1 0 1 1 0 8 0 pfstkey 128 226 0 193 2 0 2 2 0 8 0 pfstate 376 226 0 193 7 2 5 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 4597 0 4274 41 10 31 31 0 8 1 art_table 32 4599 0 4274 4 0 4 4 0 8 0 art_node 16 1134 0 1069 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 2 1 0 1 1 0 8 0 semapl 112 57 0 47 1 0 1 1 0 8 0 shmpl 112 41 0 3 2 0 2 2 0 8 0 dirhash 1024 27 0 8 3 0 3 3 0 8 0 dino2pl 256 4313 0 2632 107 1 106 106 0 8 0 ffsino 272 4313 0 2632 114 1 113 113 0 8 0 nchpl 144 6432 0 5759 65 39 26 65 0 8 0 uvmvnodes 80 6092 0 0 125 0 125 125 0 8 0 vnodes 216 6092 0 0 339 0 339 339 0 8 0 namei 1024 29895 0 29895 7 6 1 2 0 8 1 percpumem 16 149 0 104 1 0 1 1 0 8 0 kstatmem 264 230 0 208 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 64753 0 64753 12 11 1 8 1 8 1 plimitpl 152 401 0 382 1 0 1 1 0 8 0 sigapl 424 2970 0 2901 12 3 9 9 0 8 0 futexpl 64 21233 0 21233 11 10 1 1 0 8 1 knotepl 120 853 0 0 25 1 24 25 0 8 0 kqueuepl 216 633 0 622 16 15 1 5 0 8 0 pipepl 320 648 0 620 13 10 3 8 0 8 0 fdescpl 496 2910 0 2882 6 1 5 5 0 8 0 filepl 152 14941 0 14700 49 37 12 18 0 8 1 lockfpl 104 631 0 629 2 1 1 2 0 8 0 lockfspl 48 219 0 217 1 0 1 1 0 8 0 sessionpl 144 124 0 115 1 0 1 1 0 8 0 pgrppl 48 244 0 226 1 0 1 1 0 8 0 ucredpl 104 1987 0 1974 1 0 1 1 0 8 0 zombiepl 144 2904 0 2901 1 0 1 1 0 8 0 processpl 1160 2970 0 2901 7 1 6 6 0 8 0 procpl 648 5160 0 5090 11 3 8 8 0 8 0 srpgc 96 12 0 12 4 4 0 1 0 8 0 sosppl 168 16 0 16 6 6 0 1 0 8 0 sockpl 664 3605 0 3573 50 46 4 14 0 8 0 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 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 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 153 0 0 17 0 17 17 0 8 0 mcl2k 2048 54 0 0 5 1 4 5 0 8 0 mtagpl 96 90 0 0 2 0 2 2 0 8 0 mbufpl 256 584 0 0 31 0 31 31 0 8 0 bufpl 280 12532 0 6386 442 0 442 442 0 8 0 anonpl 24 478334 0 472005 145 74 71 106 0 185 20 amapchunkpl 152 72591 0 72221 80 39 41 43 0 158 15 amappl16 200 9264 0 9083 83 72 11 15 0 8 1 amappl15 192 16 0 16 1 1 0 1 0 8 0 amappl14 184 312 0 300 1 0 1 1 0 8 0 amappl13 176 11 0 11 1 1 0 1 0 8 0 amappl12 168 4972 0 4944 4 2 2 3 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 17 0 17 2 2 0 1 0 8 0 amappl9 144 185 0 185 1 1 0 1 0 8 0 amappl8 136 93 0 90 1 0 1 1 0 8 0 amappl7 128 307 0 294 1 0 1 1 0 8 0 amappl6 120 1053 0 1049 1 0 1 1 0 8 0 amappl5 112 510 0 497 1 0 1 1 0 8 0 amappl4 104 603 0 583 1 0 1 1 0 8 0 amappl3 96 13709 0 13630 5 1 4 4 0 8 0 amappl2 88 1983 0 1909 2 0 2 2 0 8 0 amappl1 80 22221 0 21662 18 4 14 15 0 8 0 amappl 88 21102 0 20973 5 0 5 5 0 92 0 dma65536 65536 2 0 2 2 2 0 1 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 8 0 8 2 2 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 8 0 8 2 2 0 1 0 8 0 dma16 16 21 0 20 1 0 1 1 0 8 0 aobjpl 72 43 0 3 1 0 1 1 0 8 0 uaddrrnd 24 2910 0 2882 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2910 0 2882 1 0 1 1 0 8 0 vmmpekpl 168 24761 0 24709 3 0 3 3 0 8 0 vmmpepl 168 185072 0 183311 142 52 90 100 0 357 2 vmsppl 440 2909 0 2882 6 2 4 5 0 8 0 rwobjpl 56 59665 0 52454 106 4 102 102 0 8 0 pdppl 4096 5827 0 5764 235 164 71 85 0 8 8 pvpl 32 50382 0 0 407 0 407 407 0 265 0 pmappl 248 2909 0 2882 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 629 0 242 12 0 12 12 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 panic(ffffffff830e6391) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff8309ac52,ffffffff83011965,436,ffffffff83008d14) at __assert+0x29 rtrequest(1,ffff8000371aed28,4,ffff8000371aedd0,0) at rtrequest+0xdce sys/net/route.c:1078 rt_ifa_add(ffff8000012c3b00,840100,ffff8000012c3b58,0) at rt_ifa_add+0x22e sys/net/route.c:1273 in_ifinit(ffff8000012a4800,ffff8000012c3b00,ffff8000371af040,1) at in_ifinit+0x4bd in_insert_prefix sys/netinet/in.c:770 [inline] in_ifinit(ffff8000012a4800,ffff8000012c3b00,ffff8000371af040,1) at in_ifinit+0x4bd sys/netinet/in.c:703 in_ioctl_change_ifaddr(8040691a,ffff8000371af030,ffff8000012a4800) at in_ioctl_change_ifaddr+0x92c sys/netinet/in.c:504 ifioctl(ffff800001288540,8040691a,ffff8000371af030,ffff80003138a2d8) at ifioctl+0x1571 pru_control sys/sys/protosw.h:355 [inline] ifioctl(ffff800001288540,8040691a,ffff8000371af030,ffff80003138a2d8) at ifioctl+0x1571 sys/net/if.c:2449 sys_ioctl(ffff80003138a2d8,ffff8000371af210,ffff8000371af160) at sys_ioctl+0x67c syscall(ffff8000371af210) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff8000371af210) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7babc9515d70, count: -11 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp 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 __mp_lock(ffffffff83533358) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83533358) at __mp_lock+0x192 sys/kern/kern_lock.c:144 ktrgenio(ffff8000ffffdbe8,e,1,ffff80000124d080,68) at ktrgenio+0x238 sys/kern/kern_ktrace.c:258 dofilewritev(ffff8000ffffdbe8,e,ffff80002a068760,0,ffff80002a068820) at dofilewritev+0x4f3 sys/kern/sys_generic.c:401 sys_writev(ffff8000ffffdbe8,ffff80002a0688d0,ffff80002a068820) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80002a0688d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0688d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a02fd516ce0, count: 6 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 __mp_lock(ffffffff83533358) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83533358) at __mp_lock+0x192 sys/kern/kern_lock.c:144 ktrgenio(ffff8000ffffdbe8,e,1,ffff80000124d080,68) at ktrgenio+0x238 sys/kern/kern_ktrace.c:258 dofilewritev(ffff8000ffffdbe8,e,ffff80002a068760,0,ffff80002a068820) at dofilewritev+0x4f3 sys/kern/sys_generic.c:401 sys_writev(ffff8000ffffdbe8,ffff80002a0688d0,ffff80002a068820) at sys_writev+0xd8 sys/kern/sys_generic.c:327 syscall(ffff80002a0688d0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0688d0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a02fd516ce0, count: -9