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 137077 6538 0 0 0 1 syz-executor *255526 3225 0 0 0x4000000 0K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83389388) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833c482e,ffffffff833bf32f,84,ffffffff834198be) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(71,21) at rtmap_grow+0x24f rtable_add(70) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(70) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(70,ffff80000147f000) at if_createrdomain+0x40 sys/net/if.c:1978 ifioctl(ffff800001500950,8020699f,ffff80003c446bb0,ffff8000357f8800) at ifioctl+0x1c66 sys/net/if.c:2327 sys_ioctl(ffff8000357f8800,ffff80003c446d90,ffff80003c446ce0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c446d90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c446d90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xae50072f230, 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(ffffffff83389388) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833c482e,ffffffff833bf32f,84,ffffffff834198be) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(71,21) at rtmap_grow+0x24f rtable_add(70) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(70) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(70,ffff80000147f000) at if_createrdomain+0x40 sys/net/if.c:1978 ifioctl(ffff800001500950,8020699f,ffff80003c446bb0,ffff8000357f8800) at ifioctl+0x1c66 sys/net/if.c:2327 sys_ioctl(ffff8000357f8800,ffff80003c446d90,ffff80003c446ce0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c446d90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c446d90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xae50072f230, count: -10 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c4468c0 rbx 0xffffffff83845ddf cpu_info_full_primary+0x2ddf rdx 0 rcx 0xffff8000357f8800 rax 0xffffffff83844ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xedd1c3ddd5dd9531 r11 0xbde8c3f9340cff14 r12 0xffffffff83845be0 cpu_info_full_primary+0x2be0 r13 0 r14 0 r15 0x1 rip 0xffffffff830559f5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c4468b0 ss 0 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=255526 pid=3225 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=86, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000357f82d0,0xffffffff839023a0 process=0xffff8000ffff2b60 user=0xffff80003c441000, vmspace=0xfffffd8069da57c8 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6538 137077 15869 0 7 0 syz-executor 38869 385646 44085 0 2 0 syz-executor 38869 19700 44085 0 3 0x4000080 fsleep syz-executor 3225 365145 95701 0 2 0 syz-executor 3225 142639 95701 0 2 0x4000000 syz-executor * 3225 255526 95701 0 7 0x4000000 syz-executor 22882 204594 22231 0 3 0x80 nanoslp syz-executor 22882 120296 22231 0 3 0x4000080 kqsel syz-executor 22882 370363 22231 0 3 0x4000080 fsleep syz-executor 22882 185300 22231 0 3 0x4000080 fsleep syz-executor 65965 411600 85640 0 2 0x2 syz-executor 1656 12050 81388 0 3 0x3000 suspend syz-executor 1656 240481 81388 0 2 0x4081000 syz-executor 77887 429215 0 0 3 0x14200 acct acct 81388 242225 85640 0 3 0x82 nanoslp syz-executor 71563 468732 85640 0 3 0x82 wait syz-executor 22231 365198 85640 0 3 0x82 nanoslp syz-executor 15869 115902 85640 0 3 0x82 nanoslp syz-executor 23219 16393 0 0 3 0x14200 bored sosplice 44085 386829 85640 0 3 0x82 nanoslp syz-executor 93770 32922 85640 0 2 0x2 syz-executor 95701 319101 85640 0 3 0x82 nanoslp syz-executor 85640 486672 28759 0 2 0x3 syz-executor 28759 56735 36651 0 3 0x10008a sigsusp ksh 36651 412946 65466 0 3 0x98 kqread sshd-session 65466 143713 50258 0 3 0x92 kqread sshd-session 49034 112216 1 0 3 0x100083 ttyopn getty 50258 432031 1 0 3 0x88 kqread sshd 15657 103441 11864 74 3 0x1100092 bpf pflogd 11864 232431 1 0 3 0x80 sbwait pflogd 58796 94588 56766 73 3 0x1100090 kqread syslogd 56766 146043 1 0 3 0x100082 sbwait syslogd 446 63225 1 0 3 0x100080 kqread resolvd 69674 295675 0 0 3 0x14200 bored smr 95569 39774 0 0 2 0x14200 zerothread 18624 122738 0 0 3 0x14200 aiodoned aiodoned 69229 211345 0 0 3 0x14200 syncer update 34103 292132 0 0 3 0x14200 cleaner cleaner 74903 453984 0 0 3 0x14200 reaper reaper 36893 144226 0 0 3 0x14200 pgdaemon pagedaemon 94208 268790 0 0 3 0x14200 bored viomb 8377 511492 0 0 3 0x40014200 acpi0 acpi0 43184 424481 0 0 3 0x40014200 idle1 72915 319819 0 0 3 0x14200 bored softnet1 10824 520889 0 0 3 0x14200 bored softnet0 77732 155507 0 0 3 0x14200 bored systqmp 92646 505421 0 0 3 0x14200 bored systq 46331 111441 0 0 3 0x14200 tmoslp softclockmp 91611 266447 0 0 3 0x40014200 tmoslp softclock 32873 311824 0 0 3 0x40014200 idle0 1 299006 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 3225 (syz-executor) thread 0xffff8000357f8800 (255526) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff838caf48) #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 1656 (syz-executor) thread 0xffff8000357fbcb0 (240481) exclusive rrwlock inode r = 0 (0xfffffd80696e7338) #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 Process 93770 (syz-executor) thread 0xffff8000ffffcd00 (32922) exclusive rrwlock inode r = 0 (0xfffffd80696e7900) #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 vget+0x2a2 sys/kern/vfs_subr.c:687 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x93a sys/kern/vfs_lookup.c:566 #11 namei+0x7ca sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c17c448) #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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1868 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 11034K 11371K 166960K 13190 0 pcb 20 18K 20K 166960K 777 0 rtable 178 15K 15K 166960K 771 0 pf 39 18K 67485K 166960K 237 0 ifaddr 37 6K 8K 166960K 165 0 ifgroup 65 2K 3K 166960K 289 0 sysctl 4 1K 9K 166960K 16 0 counters 70 37K 38K 166960K 296 0 ioctlops 0 0K 4K 166960K 1811 0 iov 0 0K 24K 166960K 246 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1451 91K 92K 166960K 3142 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 30 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 67 0 dirhash 12 2K 2K 166960K 45 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 240K 166960K 2158 0 sigio 0 0K 0K 166960K 29 0 proc 66 83K 164K 166960K 896 0 subproc 72 4K 4K 166960K 136 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 320 0 in_multi 58 4K 7K 166960K 266 0 ether_multi 1 0K 0K 166960K 33 0 mrt 2 0K 0K 166960K 26 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 800 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 209 143K 175K 166960K 20932 0 UVM aobj 29 2K 2K 166960K 32 0 pinsyscall 35 70K 102K 166960K 3440 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 242 0 NDP 15 0K 2K 166960K 117 0 temp 76 8656K 8912K 166960K 86289 0 kqueue 7 12K 29K 166960K 435 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 120 316 0 315 3 2 1 3 0 8 0 rtentry 176 235 0 180 5 1 4 5 0 8 0 unpcb 144 1273 0 1259 12 7 5 5 0 8 4 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpqe 32 3 0 3 2 2 0 1 0 8 0 tcpcb 736 880 0 874 17 16 1 10 0 8 0 arp 136 32 0 23 1 0 1 1 0 8 0 inpcb 328 2972 0 2961 26 17 9 12 0 8 8 nd6 152 41 0 31 1 0 1 1 0 8 0 pkpcb 40 83 0 82 3 2 1 1 0 8 0 kcovpl 48 15 0 7 1 0 1 1 0 8 0 mppekey 1024 3 0 3 1 1 0 1 0 8 0 ppxss 1192 84 0 84 2 1 1 1 0 8 1 pppxif 1504 3 0 3 3 3 0 1 0 8 0 pffrag 232 16 0 3 1 0 1 1 0 482 0 pffrnode 88 15 0 3 1 0 1 1 0 8 0 pffrent 40 92 0 78 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 8 0 8 2 2 0 1 0 8 0 pfanchor 1288 1 0 1 1 1 0 1 0 8 0 pftag 88 1 0 1 1 1 0 1 0 8 0 pfstitem 24 129 0 46 1 0 1 1 0 8 0 pfstkey 128 129 0 46 3 0 3 3 0 8 0 pfstate 384 129 0 46 9 0 9 9 0 8 0 pfrule 1344 23 0 18 2 1 1 2 0 8 0 rttmr 136 5 0 5 1 1 0 1 0 8 0 art_heap8 4096 5 0 1 5 1 4 4 0 8 0 art_heap4 256 1154 0 886 33 13 20 28 0 8 2 art_table 40 1159 0 887 5 0 5 5 0 8 0 art_node 32 232 0 188 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 3 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 64 0 54 1 0 1 1 0 8 0 shmpl 112 29 0 3 1 0 1 1 0 8 0 dirhash 1024 39 0 22 3 0 3 3 0 8 0 dino2pl 256 5520 0 4006 97 1 96 96 0 8 0 ffsino 296 5520 0 4006 119 2 117 118 0 8 0 nchpl 144 8455 0 7835 64 40 24 64 0 8 0 rtmask 32 17 0 17 4 3 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 29959 0 29958 2 1 1 2 0 8 0 percpumem 16 163 0 113 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 kstatmem 264 178 0 146 4 1 3 3 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 15 0 15 4 3 1 1 0 8 1 scxspl 216 61846 0 61846 10 9 1 8 1 8 1 plimitpl 152 648 0 631 2 1 1 2 0 8 0 sigapl 424 2469 0 2424 10 2 8 8 0 8 1 knotepl 120 493 0 0 15 0 15 15 0 8 0 kqueuepl 224 901 0 893 12 7 5 5 0 8 4 pipepl 344 396 0 368 6 1 5 6 0 8 2 fdescpl 528 2406 0 2379 3 0 3 3 0 8 0 filepl 160 16613 0 16403 30 15 15 19 0 8 3 lockfpl 104 624 0 623 1 0 1 1 0 8 0 lockfspl 48 264 0 263 1 0 1 1 0 8 0 sessionpl 144 32 0 24 1 0 1 1 0 8 0 pgrppl 48 71 0 55 1 0 1 1 0 8 0 ucredpl 104 3116 0 3106 1 0 1 1 0 8 0 zombiepl 144 3374 0 3372 1 0 1 1 0 8 0 processpl 1232 2469 0 2424 7 1 6 6 0 8 1 procpl 664 5890 0 5838 10 3 7 8 0 8 1 sosppl 168 12 0 12 3 2 1 1 0 8 1 sockpl 752 4693 0 4666 42 31 11 17 0 8 8 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 75 0 0 9 1 8 8 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 2498 0 0 155 0 155 155 0 8 0 bufpl 280 26675 0 20532 440 0 440 440 0 8 0 anonpl 32 15599 0 0 127 1 126 126 0 246 0 amapchunkpl 152 73029 0 72553 51 19 32 36 0 158 6 amappl16 200 9680 0 9460 70 45 25 32 0 8 1 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 137 0 127 1 0 1 1 0 8 0 amappl13 176 6 0 5 2 1 1 1 0 8 0 amappl12 168 3183 0 3156 3 1 2 2 0 8 0 amappl11 160 52 0 44 1 0 1 1 0 8 0 amappl10 152 3 0 3 1 1 0 1 0 8 0 amappl9 144 252 0 252 1 1 0 1 0 8 0 amappl8 136 22 0 19 1 0 1 1 0 8 0 amappl7 128 127 0 118 1 0 1 1 0 8 0 amappl6 120 292 0 288 1 0 1 1 0 8 0 amappl5 112 248 0 241 1 0 1 1 0 8 0 amappl4 104 331 0 311 1 0 1 1 0 8 0 amappl3 96 12736 0 12651 4 1 3 4 0 8 0 amappl2 88 2679 0 2617 2 0 2 2 0 8 0 amappl1 80 17434 0 16928 17 3 14 15 0 8 0 amappl 88 19742 0 19588 5 0 5 5 0 92 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 dma65536 65536 1 0 1 1 1 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 2 0 2 2 1 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 255 0 255 3 3 0 1 0 8 0 dma64 64 8 0 8 3 2 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 51 0 50 1 0 1 1 0 8 0 aobjpl 72 31 0 3 1 0 1 1 0 8 0 uaddrrnd 24 2406 0 2379 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2406 0 2379 1 0 1 1 0 8 0 vmmpekpl 168 19441 0 19386 3 0 3 3 0 8 0 vmmpepl 168 156663 0 154826 124 16 108 115 0 357 12 vmsppl 488 2405 0 2379 6 1 5 5 0 8 0 rwobjpl 80 48656 0 41716 148 0 148 148 0 8 0 pdppl 4096 4819 0 4758 111 44 67 81 0 8 6 pvpl 32 23713 0 0 193 1 192 192 0 265 0 pmappl 256 2405 0 2379 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 465 0 87 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:438 panic(ffffffff83389388) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833c482e,ffffffff833bf32f,84,ffffffff834198be) at __assert+0x29 sys/kern/subr_prf.c:-1 rtmap_grow(71,21) at rtmap_grow+0x24f rtable_add(70) at rtable_add+0x2d9 rtable_alloc sys/net/rtable.c:370 [inline] rtable_add(70) at rtable_add+0x2d9 sys/net/rtable.c:223 if_createrdomain(70,ffff80000147f000) at if_createrdomain+0x40 sys/net/if.c:1978 ifioctl(ffff800001500950,8020699f,ffff80003c446bb0,ffff8000357f8800) at ifioctl+0x1c66 sys/net/if.c:2327 sys_ioctl(ffff8000357f8800,ffff80003c446d90,ffff80003c446ce0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80003c446d90) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c446d90) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xae50072f230, 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(ffffffff838cad40) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838cad40) at __mp_lock+0x199 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff838cad40,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff839338e0,1) at pool_get+0x27e sys/kern/subr_pool.c:591 uvm_mapent_alloc(ffffffff838d8658,1323) at uvm_mapent_alloc+0x3a4 sys/uvm/uvm_map.c:-1 uvm_map(ffffffff838d8658,ffff800037c06260,6000,0,ffffffffffffffff,0,cd723177e8d785ac) at uvm_map+0x3bb sys/uvm/uvm_map.c:-1 km_alloc(6000,ffffffff83638d98,ffffffff834c5688,ffffffff834c5700) at km_alloc+0x20d sys/uvm/uvm_km.c:746 uvm_uarea_alloc() at uvm_uarea_alloc+0x52 sys/uvm/uvm_glue.c:-1 thread_fork(ffff8000357f82d0,fae84b9eac0,faded7e4800,faded7e4830,ffff800037c06450) at thread_fork+0x170 sys/kern/kern_fork.c:562 sys___tfork(ffff8000357f82d0,ffff800037c06500,ffff800037c06450) at sys___tfork+0x1b6 sys/kern/kern_fork.c:141 syscall(ffff800037c06500) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800037c06500) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x785ac31b33c0, count: 1 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(ffffffff838cad40) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff838cad40) at __mp_lock+0x199 sys/kern/kern_lock.c:165 __mp_acquire_count(ffffffff838cad40,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 pool_get(ffffffff839338e0,1) at pool_get+0x27e sys/kern/subr_pool.c:591 uvm_mapent_alloc(ffffffff838d8658,1323) at uvm_mapent_alloc+0x3a4 sys/uvm/uvm_map.c:-1 uvm_map(ffffffff838d8658,ffff800037c06260,6000,0,ffffffffffffffff,0,cd723177e8d785ac) at uvm_map+0x3bb sys/uvm/uvm_map.c:-1 km_alloc(6000,ffffffff83638d98,ffffffff834c5688,ffffffff834c5700) at km_alloc+0x20d sys/uvm/uvm_km.c:746 uvm_uarea_alloc() at uvm_uarea_alloc+0x52 sys/uvm/uvm_glue.c:-1 thread_fork(ffff8000357f82d0,fae84b9eac0,faded7e4800,faded7e4830,ffff800037c06450) at thread_fork+0x170 sys/kern/kern_fork.c:562 sys___tfork(ffff8000357f82d0,ffff800037c06500,ffff800037c06450) at sys___tfork+0x1b6 sys/kern/kern_fork.c:141 syscall(ffff800037c06500) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800037c06500) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x785ac31b33c0, count: -14