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 *136060 85241 0 0 0x4000000 0K syz-executor 134746 35211 0 0x2 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83384d83) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833c5ea8,ffffffff833c154f,84,ffffffff8341c660) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(17,21) at rtmap_grow+0x24f rtable_add(16) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(16) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(16,ffff800001483000) at if_createrdomain+0x40 sys/net/if.c:1978 ifioctl(ffff800010fce380,8020699f,ffff80003c507850,ffff80003b40d790) at ifioctl+0x1c66 sys/net/if.c:2327 sys_ioctl(ffff80003b40d790,ffff80003c507a30,ffff80003c507980) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c507a30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c507a30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc1349067930, 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(ffffffff83384d83) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833c5ea8,ffffffff833c154f,84,ffffffff8341c660) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(17,21) at rtmap_grow+0x24f rtable_add(16) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(16) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(16,ffff800001483000) at if_createrdomain+0x40 sys/net/if.c:1978 ifioctl(ffff800010fce380,8020699f,ffff80003c507850,ffff80003b40d790) at ifioctl+0x1c66 sys/net/if.c:2327 sys_ioctl(ffff80003b40d790,ffff80003c507a30,ffff80003c507980) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c507a30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c507a30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc1349067930, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c507560 rbx 0xffffffff83814ddf cpu_info_full_primary+0x2ddf rdx 0 rcx 0xffff80003b40d790 rax 0xffffffff83813ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x44a13223229ec70a r11 0x99ad6cd965aa232b r12 0xffffffff83814be0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff810466b5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c507550 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=136060 pid=85241 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003b40cd30,0xffffffff83979950 process=0xffff80003c42a6a0 user=0xffff80003c502000, vmspace=0xfffffd806c0749b0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 85241 44810 59687 0 3 0x80 fsleep syz-executor 85241 60053 59687 0 2 0x4000000 syz-executor *85241 136060 59687 0 7 0x4000000 syz-executor 5220 462670 79299 0 2 0 syz-executor 5220 40621 79299 0 3 0x4000080 fsleep syz-executor 5220 323135 79299 0 3 0x4000080 fsleep syz-executor 5220 420924 79299 0 3 0x4000080 fsleep syz-executor 27195 237827 22862 0 3 0x80 fsleep syz-executor 27195 383511 22862 0 2 0x4000000 syz-executor 57336 108639 4822 0 2 0xc80 syz-executor 57336 151954 4822 0 3 0x4000080 kqread syz-executor 74436 111359 82908 0 3 0x80 nanoslp syz-executor 74436 423894 82908 0 3 0x4000080 ttyin syz-executor 74436 461797 82908 0 3 0x4000080 fsleep syz-executor 74436 283955 82908 0 3 0x4000080 fsleep syz-executor 63677 357187 0 0 3 0x14280 nfsidl nfsio 33750 33058 0 0 3 0x14280 nfsidl nfsio 89383 483070 0 0 3 0x14280 nfsidl nfsio 75570 268604 0 0 3 0x14280 nfsidl nfsio 95962 298022 0 0 3 0x14280 nfsidl nfsio 47020 92703 0 0 3 0x14280 nfsidl nfsio 64281 101352 0 0 3 0x14280 nfsidl nfsio 67509 17628 0 0 3 0x14280 nfsidl nfsio 47540 491545 0 0 3 0x14280 nfsidl nfsio 13897 304540 0 0 3 0x14280 nfsidl nfsio 85662 236904 0 0 3 0x14280 nfsidl nfsio 87050 228320 0 0 3 0x14280 nfsidl nfsio 55713 303221 0 0 3 0x14280 nfsidl nfsio 6975 14370 0 0 3 0x14280 nfsidl nfsio 88628 441939 0 0 3 0x14280 nfsidl nfsio 21635 253112 0 0 3 0x14280 nfsidl nfsio 59239 523435 0 0 3 0x14280 nfsidl nfsio 9732 233194 0 0 3 0x14280 nfsidl nfsio 78254 483591 0 0 3 0x14280 nfsidl nfsio 96896 41915 0 0 3 0x14280 nfsidl nfsio 2856 496903 0 0 3 0x14200 acct acct 25174 314789 0 0 3 0x14200 bored sosplice 42336 253444 33814 0 3 0x82 wait syz-executor 79299 78628 33814 0 2 0xc82 syz-executor 35211 134746 33814 0 7 0x2 syz-executor 4822 506978 33814 0 3 0x82 nanoslp syz-executor 52688 363702 33814 0 2 0x2 syz-executor 22862 462443 33814 0 3 0x82 nanoslp syz-executor 82908 213580 33814 0 3 0x82 nanoslp syz-executor 59687 190793 33814 0 3 0x82 nanoslp syz-executor 33814 14373 54318 0 2 0x2 syz-executor 54318 101646 93648 0 3 0x10008a sigsusp ksh 93648 475218 49304 0 3 0x98 kqread sshd-session 49304 429117 97346 0 3 0x92 kqread sshd-session 22930 256333 1 0 3 0x100083 ttyin getty 97346 160535 1 0 3 0x88 kqread sshd 60409 423402 66967 74 3 0x1100092 bpf pflogd 66967 167504 1 0 3 0x80 sbwait pflogd 62711 390625 13982 73 3 0x1100090 kqread syslogd 13982 381168 1 0 3 0x100082 sbwait syslogd 20436 344277 1 0 3 0x100080 kqread resolvd 5629 158855 13408 77 3 0x100092 kqread dhcpleased 38403 40598 13408 77 3 0x100092 kqread dhcpleased 13408 274395 1 0 3 0x80 kqread dhcpleased 39361 7531 0 0 3 0x14200 bored smr 95153 112111 0 0 2 0x14200 zerothread 69121 158670 0 0 3 0x14200 aiodoned aiodoned 97918 206338 0 0 3 0x14200 syncer update 36745 426066 0 0 3 0x14200 cleaner cleaner 27803 523323 0 0 3 0x14200 reaper reaper 41718 263942 0 0 3 0x14200 pgdaemon pagedaemon 19952 389313 0 0 3 0x14200 bored viomb 78357 326191 0 0 3 0x40014200 acpi0 acpi0 15158 333068 0 0 3 0x40014200 idle1 64548 243817 0 0 3 0x14200 bored softnet1 61864 11772 0 0 2 0x14200 softnet0 6721 400620 0 0 3 0x14200 bored systqmp 96545 458426 0 0 3 0x14200 bored systq 44992 316886 0 0 3 0x14200 tmoslp softclockmp 36706 157602 0 0 3 0x40014200 tmoslp softclock 90756 207037 0 0 3 0x40014200 idle0 1 122603 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 85241 (syz-executor) thread 0xffff80003b40d790 (136060) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff839b30d0) #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:1978 #6 ifioctl+0x1c66 sys/net/if.c:2327 #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:748 #9 Xsyscall+0x128 Process 27195 (syz-executor) thread 0xffff80003b40c038 (383511) exclusive rrwlock inode r = 0 (0xfffffd806e165230) #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 vn_write+0x18f sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x242 sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 11049K 11169K 166960K 11583 0 pcb 18 17K 18K 166960K 199 0 rtable 188 7K 7K 166960K 385 0 pf 38 18K 19K 166960K 93 0 ifaddr 40 6K 7K 166960K 68 0 ifgroup 59 2K 2K 166960K 104 0 sysctl 3 1K 9K 166960K 10 0 counters 70 37K 37K 166960K 120 0 ioctlops 0 0K 4K 166960K 1574 0 iov 0 0K 12K 166960K 22 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1348 85K 85K 166960K 1611 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 47 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 480 0 sigio 0 0K 0K 166960K 6 0 proc 72 115K 164K 166960K 559 0 subproc 72 4K 4K 166960K 75 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 39 0 in_multi 85 6K 7K 166960K 108 0 ether_multi 1 0K 0K 166960K 3 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 421 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 234 159K 177K 166960K 6126 0 UVM aobj 7 2K 2K 166960K 7 0 pinsyscall 41 82K 102K 166960K 1611 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 31 0 NDP 13 0K 2K 166960K 47 0 temp 74 8655K 8723K 166960K 23324 0 kqueue 15 24K 26K 166960K 90 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 120 125 0 121 3 2 1 3 0 8 0 rtentry 176 103 0 28 5 0 5 5 0 8 0 unpcb 144 202 0 185 2 1 1 2 0 8 0 syncache 336 8 0 8 3 2 1 1 0 8 1 tcpqe 32 2 0 2 1 1 0 1 0 8 0 tcpcb 736 253 0 247 13 12 1 13 0 8 0 arp 136 11 0 2 1 0 1 1 0 8 0 inpcb 328 648 0 638 16 11 5 12 0 8 4 nd6 152 18 0 2 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1192 22 0 22 2 1 1 1 0 8 1 pppxif 1504 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 7 0 1 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 pfrktable 1344 1 0 1 1 0 1 1 0 8 1 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 45 0 13 1 0 1 1 0 8 0 pfstkey 128 53 0 21 2 0 2 2 0 8 0 pfstate 384 48 0 17 4 0 4 4 0 8 0 pfrule 1344 22 0 17 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 484 0 116 28 1 27 28 0 8 1 art_table 40 485 0 116 5 0 5 5 0 8 0 art_node 32 103 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 5 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 44 0 34 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 2259 0 753 95 0 95 95 0 8 0 ffsino 296 2259 0 753 117 0 117 117 0 8 0 nchpl 144 2895 0 1203 64 0 64 64 0 8 0 rtmask 32 5 0 5 3 2 1 1 0 8 1 vnodes 216 2454 0 0 137 0 137 137 0 8 0 namei 1024 9888 0 9888 3 1 2 2 0 8 2 percpumem 16 75 0 25 1 0 1 1 0 8 0 kstatmem 264 66 0 36 4 1 3 3 0 8 1 scsiplug 72 2 0 2 1 1 0 1 0 8 0 scxspl 216 19694 0 19694 9 8 1 8 1 8 1 plimitpl 152 217 0 199 1 0 1 1 0 8 0 sigapl 424 812 0 744 9 1 8 8 0 8 0 knotepl 120 507 0 0 16 0 16 16 0 8 0 kqueuepl 224 263 0 251 9 4 5 5 0 8 4 pipepl 344 135 0 107 3 0 3 3 0 8 0 fdescpl 528 774 0 744 3 0 3 3 0 8 0 filepl 160 4309 0 4083 25 9 16 18 0 8 5 lockfpl 104 126 0 123 1 0 1 1 0 8 0 lockfspl 48 55 0 52 1 0 1 1 0 8 0 sessionpl 144 26 0 17 1 0 1 1 0 8 0 pgrppl 48 42 0 25 1 0 1 1 0 8 0 ucredpl 104 622 0 609 1 0 1 1 0 8 0 zombiepl 144 841 0 840 2 1 1 1 0 8 0 processpl 1232 813 0 744 6 0 6 6 0 8 0 procpl 664 1440 0 1361 9 1 8 9 0 8 0 sosppl 168 4 0 4 2 2 0 1 0 8 0 sockpl 752 986 0 955 21 13 8 17 0 8 3 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 111 0 0 14 0 14 14 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 55 0 0 7 0 7 7 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 5724 0 0 358 0 358 358 0 8 0 bufpl 280 8560 0 2416 440 0 440 440 0 8 0 anonpl 32 10468 0 0 85 0 85 85 0 246 0 amapchunkpl 152 19157 0 18678 34 10 24 27 0 158 2 amappl16 200 3741 0 3708 34 19 15 24 0 8 7 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 126 0 114 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1449 0 1419 3 1 2 2 0 8 0 amappl11 160 50 0 36 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 126 0 114 1 0 1 1 0 8 0 amappl6 120 185 0 181 1 0 1 1 0 8 0 amappl5 112 125 0 115 1 0 1 1 0 8 0 amappl4 104 333 0 313 1 0 1 1 0 8 0 amappl3 96 3308 0 3213 4 1 3 3 0 8 0 amappl2 88 1046 0 968 2 0 2 2 0 8 0 amappl1 80 10584 0 9984 17 2 15 15 0 8 0 amappl 88 5355 0 5193 5 0 5 5 0 92 0 uvmvnodes 80 2454 0 0 51 0 51 51 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 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 6 0 0 1 0 1 1 0 8 0 uaddrrnd 24 774 0 744 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 774 0 744 1 0 1 1 0 8 0 vmmpekpl 168 8135 0 8100 2 0 2 2 0 8 0 vmmpepl 168 57029 0 55086 112 11 101 107 0 357 5 vmsppl 488 773 0 744 7 2 5 5 0 8 1 rwobjpl 80 21347 0 17948 75 1 74 74 0 8 0 pdppl 4096 1556 0 1488 122 50 72 86 0 8 4 pvpl 32 18212 0 0 148 1 147 147 0 265 0 pmappl 256 773 0 744 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 658 0 69 18 0 18 18 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(ffffffff83384d83) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833c5ea8,ffffffff833c154f,84,ffffffff8341c660) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(17,21) at rtmap_grow+0x24f rtable_add(16) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(16) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(16,ffff800001483000) at if_createrdomain+0x40 sys/net/if.c:1978 ifioctl(ffff800010fce380,8020699f,ffff80003c507850,ffff80003b40d790) at ifioctl+0x1c66 sys/net/if.c:2327 sys_ioctl(ffff80003b40d790,ffff80003c507a30,ffff80003c507980) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c507a30) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c507a30) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc1349067930, 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 __mp_lock(ffffffff839b2ec8) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839b2ec8) at __mp_lock+0x199 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff839b2ec8,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 malloc(528,64,1) at malloc+0xe3 sys/kern/kern_malloc.c:174 process_new(ffff80003b40ca98,ffff8000ffff61b8,1) at process_new+0x3ea sys/kern/kern_fork.c:257 fork1(ffff8000ffff34d8,1,ffffffff82cc9a90,0,ffff80002a392040,0) at fork1+0x3f6 sys/kern/kern_fork.c:-1 syscall(ffff80002a3920f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3920f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x702149b86c90, count: 5 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 __mp_lock(ffffffff839b2ec8) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff839b2ec8) at __mp_lock+0x199 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff839b2ec8,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 malloc(528,64,1) at malloc+0xe3 sys/kern/kern_malloc.c:174 process_new(ffff80003b40ca98,ffff8000ffff61b8,1) at process_new+0x3ea sys/kern/kern_fork.c:257 fork1(ffff8000ffff34d8,1,ffffffff82cc9a90,0,ffff80002a392040,0) at fork1+0x3f6 sys/kern/kern_fork.c:-1 syscall(ffff80002a3920f0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a3920f0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x702149b86c90, count: -10