panic: kernel diagnostic assertion "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 132 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *376500 77577 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83372691) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833b0829,ffffffff833ace8d,84,ffffffff83407484) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(21,21) at rtmap_grow+0x24f rtable_add(20) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(20) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(20,ffff80000147a800) at if_createrdomain+0x40 sys/net/if.c:1952 ifioctl(ffff800001668400,8020699f,ffff800032c05b00,ffff80002a2b7cc0) at ifioctl+0x1c66 sys/net/if.c:2301 sys_ioctl(ffff80002a2b7cc0,ffff800032c05ce0,ffff800032c05c30) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800032c05ce0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800032c05ce0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91af3712dd0, count: 5 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 "map->limit == rtmap_limit" failed: file "/syzkaller/managers/multicore/kernel/sys/net/rtable.c", line 132 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83372691) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833b0829,ffffffff833ace8d,84,ffffffff83407484) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(21,21) at rtmap_grow+0x24f rtable_add(20) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(20) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(20,ffff80000147a800) at if_createrdomain+0x40 sys/net/if.c:1952 ifioctl(ffff800001668400,8020699f,ffff800032c05b00,ffff80002a2b7cc0) at ifioctl+0x1c66 sys/net/if.c:2301 sys_ioctl(ffff80002a2b7cc0,ffff800032c05ce0,ffff800032c05c30) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800032c05ce0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800032c05ce0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91af3712dd0, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800032c05810 rbx 0xffffffff837bbddf cpu_info_full_primary+0x2ddf rdx 0 rcx 0xffff80002a2b7cc0 rax 0xffffffff837baff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xb563674221195f4a r11 0x4d7c2d597a596b20 r12 0xffffffff837bbbe0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff82024cd5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800032c05800 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=376500 pid=77577 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=84, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2b6800,0xffff80002a2b62e0 process=0xffff80003b824e90 user=0xffff800032c00000, vmspace=0xfffffd80646f9ba8 estcpu=34, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 68652 173690 1392 0 2 0 syz-executor 68652 510241 1392 0 3 0x4000080 fsleep syz-executor 26625 299938 3630 0 2 0 syz-executor 26625 501031 3630 0 3 0x4000080 fsleep syz-executor 4101 79736 69554 0 2 0xc80 syz-executor 4101 467952 69554 0 3 0x4000080 lockf syz-executor 4101 477045 69554 0 3 0x4000080 fsleep syz-executor 6991 69013 7784 0 2 0 syz-executor 6991 11841 7784 0 3 0x4000080 fsleep syz-executor 6991 306919 7784 0 3 0x4000080 fsleep syz-executor 98987 172935 32374 60929 2 0x10 syz-executor 98987 182854 32374 60929 3 0x4000090 fsleep syz-executor 98987 454666 32374 60929 3 0x4000090 fsleep syz-executor 31499 332101 96824 0 2 0xc80 syz-executor 31499 147692 96824 0 3 0x4000080 fsleep syz-executor 31499 263584 96824 0 2 0x4000000 syz-executor 77577 194820 26571 0 2 0 syz-executor 77577 395082 26571 0 2 0x4000000 syz-executor *77577 376500 26571 0 7 0x4000000 syz-executor 1201 100544 0 0 3 0x14200 acct acct 74688 71805 94739 0 2 0x2 syz-executor 57597 294781 0 0 3 0x14200 bored sosplice 69554 497236 94739 0 2 0xc82 syz-executor 3630 69910 94739 0 2 0xc82 syz-executor 7784 224766 94739 0 2 0xc82 syz-executor 26571 270798 94739 0 2 0xc82 syz-executor 1392 201316 94739 0 2 0xc82 syz-executor 96824 187602 94739 0 2 0xc82 syz-executor 32374 222294 94739 0 2 0xc82 syz-executor 94739 300774 2000 0 3 0x82 kqread syz-executor 2000 17568 15365 0 3 0x10008a sigsusp ksh 15365 289181 78409 0 3 0x98 kqread sshd-session 78409 255635 85778 0 3 0x92 kqread sshd-session 7862 107053 1 0 3 0x100083 ttyin getty 85778 94686 1 0 3 0x88 kqread sshd 66775 72169 89551 74 3 0x1100092 bpf pflogd 89551 328012 1 0 3 0x80 sbwait pflogd 19086 320168 55555 73 3 0x1100090 kqread syslogd 55555 80009 1 0 3 0x100082 sbwait syslogd 31785 372682 1 0 3 0x100080 kqread resolvd 75116 443659 50029 77 3 0x100092 kqread dhcpleased 60074 518962 50029 77 3 0x100092 kqread dhcpleased 50029 185585 1 0 3 0x80 kqread dhcpleased 28229 9326 0 0 3 0x14200 bored smr 98797 258139 0 0 2 0x14200 zerothread 57632 58089 0 0 3 0x14200 aiodoned aiodoned 12888 400571 0 0 3 0x14200 syncer update 70039 124714 0 0 3 0x14200 cleaner cleaner 39897 462066 0 0 3 0x14200 reaper reaper 74132 90523 0 0 3 0x14200 pgdaemon pagedaemon 42364 43609 0 0 3 0x14200 bored viomb 1788 65238 0 0 3 0x40014200 acpi0 acpi0 98710 317137 0 0 7 0x40014200 idle1 1483 321011 0 0 3 0x14200 bored softnet7 53664 306634 0 0 3 0x14200 bored softnet6 971 378245 0 0 3 0x14200 bored softnet5 77734 183875 0 0 3 0x14200 bored softnet4 57821 207680 0 0 3 0x14200 bored softnet3 42373 161500 0 0 3 0x14200 bored softnet2 40472 195354 0 0 3 0x14200 bored softnet1 66990 464008 0 0 3 0x14200 bored softnet0 83607 305723 0 0 3 0x14200 bored systqmp 85913 40747 0 0 3 0x14200 bored systq 35546 144146 0 0 3 0x14200 tmoslp softclockmp 63597 374974 0 0 2 0x40014200 softclock 67351 284332 0 0 3 0x40014200 idle0 1 481195 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 31499 (syz-executor) thread 0xffff80002a2b7a28 (263584) exclusive rwlock fdlock r = 0 (0xffff80003b829300) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 doopenat+0x18e sys/kern/vfs_syscalls.c:1105 #3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #4 Xsyscall+0x128 Process 77577 (syz-executor) thread 0xffff80002a2b7cc0 (376500) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff839c7c68) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 malloc+0xe3 sys/kern/kern_malloc.c:174 #3 rtmap_grow+0xb2 sys/net/rtable.c:127 #4 rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] #4 rtable_add+0x2d9 sys/net/rtable.c:223 #5 if_createrdomain+0x40 sys/net/if.c:1952 #6 ifioctl+0x1c66 sys/net/if.c:2301 #7 sys_ioctl+0x674 sys/kern/sys_generic.c:-1 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 Process 74688 (syz-executor) thread 0xffff80002a2b6038 (71805) exclusive rrwlock inode r = 0 (0xfffffd806e1bf0f0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232 #6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3113 #10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806e149c40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xa3 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1 #6 namei+0x7ca sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3098 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:746 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10244 11031K 11689K 166960K 12480 0 pcb 18 14K 15K 166960K 256 0 rtable 220 11K 11K 166960K 482 0 pf 39 18K 82K 166960K 220 0 ifaddr 43 8K 9K 166960K 125 0 ifgroup 59 2K 2K 166960K 208 0 sysctl 4 1K 9K 166960K 23 0 counters 70 37K 37K 166960K 240 0 ioctlops 0 0K 4K 166960K 1877 0 iov 0 0K 24K 166960K 102 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1426 90K 90K 166960K 2604 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 22 3K 3K 166960K 40 0 dirhash 12 2K 3K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 1474 0 sigio 0 0K 0K 166960K 46 0 proc 72 115K 164K 166960K 703 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 409 0 in_multi 91 6K 7K 166960K 193 0 ether_multi 1 0K 0K 166960K 19 0 mrt 2 0K 0K 166960K 12 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 668 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 8 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 239 167K 186K 166960K 14856 0 UVM aobj 15 3K 3K 166960K 15 0 pinsyscall 42 84K 106K 166960K 2582 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 102 0 NDP 13 0K 2K 166960K 84 0 temp 78 8652K 8726K 166960K 76945 0 kqueue 13 20K 31K 166960K 303 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 134 0 130 1 0 1 1 0 8 0 rtentry 176 154 0 70 5 0 5 5 0 8 0 unpcb 144 1018 0 999 10 8 2 6 0 8 1 syncache 336 12 0 12 6 6 0 1 0 8 0 tcpqe 32 4 0 4 1 1 0 1 0 8 0 tcpcb 736 595 0 582 15 13 2 7 0 8 0 arp 136 19 0 6 1 0 1 1 0 8 0 inpcb 328 1852 0 1832 18 15 3 7 0 8 1 nd6 144 24 0 6 1 0 1 1 0 8 0 pkpcb 40 12 0 12 3 3 0 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 5 0 5 3 3 0 2 0 8 0 ppxss 1192 71 0 71 3 3 0 1 0 8 0 pppxif 1504 9 0 9 4 4 0 2 0 8 0 pfstscr 40 7 0 7 2 2 0 1 0 8 0 pffrag 232 109 0 100 1 0 1 1 0 482 0 pffrnode 88 107 0 98 1 0 1 1 0 8 0 pffrent 40 213 0 202 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 3 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 95 0 54 1 0 1 1 0 8 0 pfstkey 128 103 0 62 2 0 2 2 0 8 0 pfstate 384 99 0 58 6 0 6 6 0 8 0 pfrule 1344 63 0 58 2 1 1 2 0 8 0 rttmr 136 3 0 3 3 3 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 746 0 378 33 6 27 32 0 8 0 art_table 40 749 0 378 6 0 6 6 0 8 0 art_node 32 151 0 81 1 0 1 1 0 8 0 sysvmsgpl 40 50 0 10 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 32 0 12 1 0 1 1 0 8 0 shmpl 112 12 0 0 1 0 1 1 0 8 0 dirhash 1024 47 0 30 3 0 3 3 0 8 0 dino2pl 256 4464 0 2957 96 0 96 96 0 8 0 ffsino 296 4464 0 2957 118 0 118 118 0 8 0 nchpl 144 6468 0 4774 64 0 64 64 0 8 0 rtmask 32 14 0 14 3 3 0 1 0 8 0 uvmvnodes 80 5012 0 0 103 0 103 103 0 8 0 vnodes 216 5012 0 0 279 0 279 279 0 8 0 namei 1024 23666 0 23665 3 2 1 2 0 8 0 percpumem 16 135 0 85 1 0 1 1 0 8 0 kstatmem 264 136 0 106 6 4 2 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 6 0 6 3 3 0 1 0 8 0 scxspl 216 36984 0 36984 11 9 2 8 1 8 2 plimitpl 152 451 0 431 1 0 1 1 0 8 0 sigapl 424 1766 0 1711 7 0 7 7 0 8 0 knotepl 120 780 0 0 24 0 24 24 0 8 0 kqueuepl 224 571 0 562 6 5 1 5 0 8 0 pipepl 344 275 0 248 6 3 3 6 0 8 0 fdescpl 528 1732 0 1701 3 0 3 3 0 8 0 filepl 160 12357 0 12124 22 10 12 18 0 8 2 lockfpl 104 807 0 795 4 3 1 3 0 8 0 lockfspl 48 197 0 192 1 0 1 1 0 8 0 sessionpl 144 29 0 20 1 0 1 1 0 8 0 pgrppl 48 69 0 52 1 0 1 1 0 8 0 ucredpl 104 2555 0 2540 1 0 1 1 0 8 0 zombiepl 144 2104 0 2104 1 0 1 1 0 8 1 processpl 1232 1766 0 1711 5 0 5 5 0 8 0 procpl 664 3964 0 3897 9 2 7 7 0 8 1 sosppl 168 5 0 5 2 2 0 1 0 8 0 sockpl 752 3111 0 3068 44 38 6 23 0 8 1 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 118 0 0 15 0 15 15 0 8 0 mcl2k 2048 120 0 0 14 3 11 14 0 8 1 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 344 0 0 21 0 21 21 0 8 0 bufpl 280 14396 0 8253 440 0 440 440 0 8 0 anonpl 32 10752 0 0 87 0 87 87 0 246 0 amapchunkpl 152 51513 0 51032 52 23 29 36 0 158 6 amappl16 200 6341 0 6303 56 46 10 24 0 8 3 amappl15 192 7 0 6 2 1 1 1 0 8 0 amappl14 184 127 0 115 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 2392 0 2361 4 1 3 3 0 8 0 amappl11 160 69 0 55 1 0 1 1 0 8 0 amappl10 152 25 0 25 1 1 0 1 0 8 0 amappl9 144 247 0 246 2 1 1 1 0 8 0 amappl8 136 44 0 41 1 0 1 1 0 8 0 amappl7 128 146 0 133 1 0 1 1 0 8 0 amappl6 120 196 0 192 1 0 1 1 0 8 0 amappl5 112 130 0 120 1 0 1 1 0 8 0 amappl4 104 329 0 308 1 0 1 1 0 8 0 amappl3 96 8828 0 8735 4 1 3 3 0 8 0 amappl2 88 2015 0 1936 2 0 2 2 0 8 0 amappl1 80 15021 0 14417 20 6 14 15 0 8 0 amappl 88 13857 0 13693 5 0 5 5 0 92 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 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 256 0 256 3 3 0 1 0 8 0 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 14 0 0 1 0 1 1 0 8 0 uaddrrnd 24 1732 0 1701 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1732 0 1701 1 0 1 1 0 8 0 vmmpekpl 168 15455 0 15417 3 0 3 3 0 8 0 vmmpepl 168 115126 0 113101 120 19 101 110 0 357 0 vmsppl 488 1731 0 1701 8 3 5 5 0 8 0 rwobjpl 80 36913 0 30942 123 0 123 123 0 8 0 pdppl 4096 3472 0 3402 114 42 72 88 0 8 2 pvpl 32 20152 0 0 165 2 163 163 0 265 0 pmappl 256 1731 0 1701 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 335 0 77 8 0 8 8 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:438 panic(ffffffff83372691) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833b0829,ffffffff833ace8d,84,ffffffff83407484) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(21,21) at rtmap_grow+0x24f rtable_add(20) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(20) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(20,ffff80000147a800) at if_createrdomain+0x40 sys/net/if.c:1952 ifioctl(ffff800001668400,8020699f,ffff800032c05b00,ffff80002a2b7cc0) at ifioctl+0x1c66 sys/net/if.c:2301 sys_ioctl(ffff80002a2b7cc0,ffff800032c05ce0,ffff800032c05c30) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff800032c05ce0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800032c05ce0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:746 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x91af3712dd0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x457 sys/dev/acpi/acpicpu_x86.c:1224 sched_idle(ffff8000299edff0) at sched_idle+0x391 sys/kern/kern_sched.c:191 end trace frame: 0x0, count: -5