papanic: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 675 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *161465 39717 0 0 0 1 syz-executor.2 408980 81349 0 0x2 0 0 syz-executor.7 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827905eb) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82810fa3,ffffffff827f53fe,2a3,ffffffff827cc879) at __assert+0x29 sys/kern/subr_prf.c:157 proc_trampoline_mp() at proc_trampoline_mp+0x135 end trace frame: 0x0, count: 11 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu0: vop_generic_badop cpu1: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 675 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827905eb) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82810fa3,ffffffff827f53fe,2a3,ffffffff827cc879) at __assert+0x29 sys/kern/subr_prf.c:157 proc_trampoline_mp() at proc_trampoline_mp+0x135 end trace frame: 0x0, count: -4 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e42b840 rbx 0xffff800020d59b8f rdx 0 rcx 0 rax 0xffff8000211f1390 r8 0x101010101010101 r9 0x8080808080808080 r10 0xe0c50fe3b2c4b18b r11 0xbca9e67178ad5b52 r12 0xffff800020d59990 r13 0 r14 0xffffffff82b9d990 cpu_info_full_primary+0x2990 r15 0x1 rip 0xffffffff81ee7c1c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002e42b830 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.2) pid=161465 stat=onproc flags process=0 proc=0 pri=70, usrpri=70, nice=20 forw=0xffffffffffffffff, list=0xffff8000211f0b68,0xffffffff82c75098 process=0xffff8000212225c0 user=0xffff80002e426000, vmspace=0xfffffd806efc2ae8 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *39717 161465 30555 0 7 0 syz-executor.2 35958 275935 91290 0 2 0 syz-executor.0 35958 400132 91290 0 2 0x4000000 syz-executor.0 35958 342762 91290 0 2 0x4000000 syz-executor.0 62936 385882 46538 0 2 0 syz-executor.5 62936 505195 46538 0 2 0x4000080 syz-executor.5 91290 38674 60328 0 3 0x82 nanoslp syz-executor.0 30136 90657 60328 0 2 0x2 syz-executor.6 63536 312762 60328 0 3 0x2 biowait syz-executor.4 77930 16605 60328 0 2 0x2 syz-executor.3 20997 23268 60328 0 2 0x2 syz-executor.1 30555 298912 60328 0 3 0x82 nanoslp syz-executor.2 52177 433843 0 0 3 0x14200 acct acct 82319 387794 1 0 3 0x100083 ttyin getty 46538 351263 60328 0 3 0x82 nanoslp syz-executor.5 81349 408980 60328 0 7 0x2 syz-executor.7 4619 161779 0 0 3 0x14280 nfsidl nfsio 28962 91563 0 0 3 0x14280 nfsidl nfsio 16157 519760 0 0 3 0x14280 nfsidl nfsio 15998 359074 0 0 3 0x14280 nfsidl nfsio 55950 401768 0 0 3 0x14280 nfsidl nfsio 55923 266882 0 0 3 0x14280 nfsidl nfsio 48448 479631 0 0 3 0x14280 nfsidl nfsio 51263 217269 0 0 3 0x14280 nfsidl nfsio 97773 442853 0 0 3 0x14280 nfsidl nfsio 17111 364583 0 0 3 0x14280 nfsidl nfsio 41347 380522 0 0 3 0x14280 nfsidl nfsio 8095 178444 0 0 3 0x14280 nfsidl nfsio 39843 363781 0 0 3 0x14280 nfsidl nfsio 11400 456224 0 0 3 0x14280 nfsidl nfsio 11506 245729 0 0 3 0x14280 nfsidl nfsio 51403 226528 0 0 3 0x14280 nfsidl nfsio 40506 242236 0 0 3 0x14280 nfsidl nfsio 5179 183752 0 0 3 0x14280 nfsidl nfsio 19459 35290 0 0 3 0x14280 nfsidl nfsio 28971 457178 0 0 3 0x14280 nfsidl nfsio 5441 156227 0 0 3 0x14200 bored sosplice 60328 490353 15894 0 3 0x82 wait syz-fuzzer 60328 124743 15894 0 3 0x4000082 nanoslp syz-fuzzer 60328 164351 15894 0 3 0x4000082 thrsleep syz-fuzzer 60328 149215 15894 0 3 0x4000082 thrsleep syz-fuzzer 60328 325280 15894 0 2 0x4000002 syz-fuzzer 60328 461486 15894 0 3 0x4000082 wait syz-fuzzer 60328 371386 15894 0 3 0x4000082 thrsleep syz-fuzzer 60328 443647 15894 0 3 0x4000082 thrsleep syz-fuzzer 60328 339881 15894 0 3 0x4000082 wait syz-fuzzer 60328 496036 15894 0 3 0x4000082 wait syz-fuzzer 60328 324628 15894 0 3 0x4000082 thrsleep syz-fuzzer 60328 386093 15894 0 3 0x4000082 wait syz-fuzzer 60328 493666 15894 0 3 0x4000082 thrsleep syz-fuzzer 60328 467069 15894 0 3 0x4000082 wait syz-fuzzer 60328 50501 15894 0 3 0x4000082 wait syz-fuzzer 60328 495943 15894 0 3 0x4000082 wait syz-fuzzer 15894 279037 19219 0 3 0x10008a sigsusp ksh 19219 158312 12384 0 3 0x9a kqread sshd 12384 440299 1 0 3 0x88 kqread sshd 38657 204057 3200 74 3 0x1100092 bpf pflogd 3200 129679 1 0 3 0x80 netio pflogd 84488 476233 23754 73 3 0x1100090 kqread syslogd 23754 243221 1 0 3 0x100082 netio syslogd 30149 257050 1 0 3 0x100080 kqread resolvd 65078 194179 0 0 3 0x14200 bored smr 33522 351550 0 0 2 0x14200 zerothread 67093 100987 0 0 3 0x14200 aiodoned aiodoned 72828 98276 0 0 3 0x14200 syncer update 25804 296149 0 0 3 0x14200 cleaner cleaner 65773 435881 0 0 3 0x14200 reaper reaper 35963 512560 0 0 3 0x14200 pgdaemon pagedaemon 36663 434020 0 0 3 0x14200 bored viomb 24119 447124 0 0 3 0x40014200 acpi0 acpi0 39825 345691 0 0 3 0x40014200 idle1 15885 519659 0 0 3 0x14200 bored softnet3 35580 306658 0 0 3 0x14200 bored softnet2 39854 27150 0 0 3 0x14200 bored softnet1 37872 512441 0 0 3 0x14200 bored softnet0 8075 192244 0 0 3 0x14200 bored systqmp 45837 357702 0 0 3 0x14200 bored systq 4227 163953 0 0 3 0x40014200 bored softclock 78546 298235 0 0 3 0x40014200 idle0 1 494002 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10224 6512K 8256K 78643K 39350 0 pcb 14 18K 23K 78643K 3105 0 rtable 205 16K 17K 78643K 2960 0 ifaddr 97 32K 34K 78643K 1194 0 sysctl 3 1K 1K 78643K 9 0 counters 60 35K 37K 78643K 1062 0 ioctlops 0 0K 4K 78643K 2516 0 iov 0 0K 32K 78643K 1989 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1659 104K 104K 78643K 12575 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 130 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 1627 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 13 45K 85K 78643K 17075 0 sigio 0 0K 0K 78643K 164 0 proc 69 67K 127K 78643K 2168 0 subproc 104 6K 7K 78643K 641 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 1297 0 in_multi 90 6K 7K 78643K 945 0 ether_multi 1 0K 0K 78643K 97 0 mrt 1 0K 0K 78643K 43 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 241 1076K 1076K 78643K 241 0 exec 0 0K 1K 78643K 3458 0 pfkey data 0 0K 0K 78643K 12 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 409 97K 114K 78643K 169245 0 UVM aobj 131 8K 8K 78643K 143 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 479 0 NDP 16 0K 1K 78643K 385 0 temp 145 5866K 71530K 78643K 123691 0 kqueue 6 10K 24K 78643K 910 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 1013 0 1012 10 9 1 2 0 8 0 rtentry 112 865 0 781 4 1 3 4 0 8 0 unpcb 144 12992 0 12984 139 138 1 13 0 8 0 syncache 296 59 0 59 14 14 0 1 0 8 0 tcpqe 32 141 0 141 6 6 0 1 0 8 0 tcpcb 776 5411 0 5407 156 155 1 15 0 8 0 arp 120 140 0 126 1 0 1 1 0 8 0 inpcb 368 24346 0 24341 252 251 1 17 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 4 0 4 1 1 0 1 0 8 0 nd6 136 175 0 153 1 0 1 1 0 8 0 pkpcb 40 30 0 30 9 9 0 1 0 8 0 kcovpl 48 49 0 41 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 1 0 1 0 8 0 ppxss 1256 335 0 335 27 27 0 1 0 8 0 pppxif 1456 161 0 161 12 12 0 1 0 8 0 pfstscr 40 35 0 32 1 0 1 1 0 8 0 pffrag 232 94 0 94 6 6 0 1 0 482 0 pffrnode 88 94 0 94 6 6 0 1 0 8 0 pffrent 40 299 0 299 6 6 0 1 0 8 0 pfosfp 40 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 716 21 0 21 21 0 8 0 pfanchor 1288 642 97 130 46 3 43 43 0 8 0 pfqueue 264 8 0 8 2 2 0 1 0 8 0 pfstitem 24 721 0 698 2 0 2 2 0 8 0 pfstkey 128 897 0 876 8 3 5 8 0 8 0 pfstate 384 798 0 778 29 23 6 23 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 6 0 6 2 2 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 3820 0 3377 54 25 29 30 0 8 0 art_table 32 3821 0 3377 4 0 4 4 0 8 0 art_node 16 815 0 741 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 7 1 0 1 1 0 8 0 semapl 112 1625 0 1615 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 23463 0 21959 95 0 95 95 0 8 0 ffsino 272 23463 0 21959 101 0 101 101 0 8 0 nchpl 144 46224 0 45680 63 40 23 63 0 8 0 rtmask 32 9 0 9 4 4 0 1 0 8 0 uvmvnodes 80 7243 0 0 148 0 148 148 0 8 0 vnodes 216 7243 0 0 403 0 403 403 0 8 0 namei 1024 165120 0 165117 9 8 1 2 0 8 0 percpumem 16 544 0 501 1 0 1 1 0 8 0 kstatmem 264 530 0 498 5 2 3 3 0 8 0 scsiplug 72 17 0 17 6 6 0 1 0 8 0 scxspl 216 152188 0 152187 38 37 1 8 0 8 0 plimitpl 152 1569 0 1554 1 0 1 1 0 8 0 sigapl 424 17358 0 17296 11 3 8 8 0 8 0 futexpl 64 158272 0 158272 13 12 1 1 0 8 1 knotepl 120 957 0 0 16 0 16 16 0 8 0 kqueuepl 216 2534 0 2529 44 43 1 5 0 8 0 pipepl 320 4057 0 4028 116 113 3 14 0 8 0 fdescpl 496 17297 0 17274 6 2 4 5 0 8 0 filepl 152 128407 0 128184 219 206 13 22 0 8 2 lockfpl 104 3490 0 3489 5 4 1 2 0 8 0 lockfspl 48 1086 0 1085 1 0 1 1 0 8 0 sessionpl 144 67 0 51 1 0 1 1 0 8 0 pgrppl 48 424 0 408 1 0 1 1 0 8 0 ucredpl 104 13049 0 13040 1 0 1 1 0 8 0 zombiepl 144 17296 0 17296 1 0 1 1 0 8 1 processpl 1072 17358 0 17296 5 0 5 5 0 8 0 procpl 696 47986 0 47906 29 20 9 11 0 8 0 srpgc 96 42 0 42 14 14 0 1 0 8 0 sosppl 168 889 0 889 20 20 0 1 0 8 0 sockpl 488 38406 0 38392 656 653 3 43 0 8 0 mcl64k 65536 25 0 0 3 0 3 3 0 8 0 mcl16k 16384 32 0 0 3 1 2 3 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 14 0 0 1 0 1 1 0 8 0 mcl8k 8192 37 0 0 3 1 2 3 0 8 0 mcl4k 4096 18 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 624 0 0 68 47 21 68 0 8 0 mtagpl 96 41 0 0 1 0 1 1 0 8 0 mbufpl 256 5288 0 0 284 0 284 284 0 8 0 bufpl 288 30248 0 23003 518 0 518 518 0 8 0 anonpl 24 2351567 0 2335758 443 320 123 216 0 186 0 amapchunkpl 152 543231 0 542370 173 130 43 69 0 158 0 amappl16 200 63322 0 62829 199 160 39 52 0 8 8 amappl15 192 17 0 16 2 1 1 1 0 8 0 amappl14 184 290 0 274 2 1 1 2 0 8 0 amappl13 176 29 0 28 2 1 1 1 0 8 0 amappl12 168 18608 0 18581 3 1 2 2 0 8 0 amappl11 160 59 0 51 1 0 1 1 0 8 0 amappl10 152 67 0 54 1 0 1 1 0 8 0 amappl9 144 303 0 302 2 1 1 2 0 8 0 amappl8 136 826 0 648 7 0 7 7 0 8 0 amappl7 128 134 0 113 1 0 1 1 0 8 0 amappl6 120 674 0 652 2 1 1 2 0 8 0 amappl5 112 589 0 582 1 0 1 1 0 8 0 amappl4 104 1447 0 1402 3 1 2 3 0 8 0 amappl3 96 103971 0 103910 4 1 3 3 0 8 0 amappl2 88 18045 0 17983 3 1 2 3 0 8 0 amappl1 80 72335 0 71884 23 10 13 23 0 8 0 amappl 88 167990 0 167766 8 1 7 7 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 128 253 0 253 1 1 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 72 142 0 12 3 0 3 3 0 8 0 uaddrrnd 24 17297 0 17274 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 17297 0 17274 1 0 1 1 0 8 0 vmmpekpl 168 136233 0 136164 4 0 4 4 0 8 0 vmmpepl 168 1066922 0 1064714 373 249 124 140 0 357 0 vmsppl 464 17296 0 17274 5 1 4 5 0 8 0 rwobjpl 56 283183 0 274257 144 14 130 131 0 8 0 pdppl 4096 34602 0 34548 727 665 62 80 0 8 8 pvpl 32 5581614 0 5560846 913 695 218 372 0 265 10 pmappl 248 17296 0 17274 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 2155 0 1028 33 0 33 33 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82b9cff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82c77d70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c77d70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002e45aa30,ffff80000067c000) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82c77d70) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c77d70) at __mp_lock+0x129 sys/kern/kern_lock.c:147 intr_handler(ffff80002e45ab80,ffff80000006ba00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(61) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828133ac) at db_printf+0x89 sys/kern/subr_prf.c:498 end trace frame: 0xffff80002e45af70, count: 0 ddb{0}> trace x86_ipi_db(ffffffff82b9cff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82c77d70) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c77d70) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002e45aa30,ffff80000067c000) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82c77d70) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82c77d70) at __mp_lock+0x129 sys/kern/kern_lock.c:147 intr_handler(ffff80002e45ab80,ffff80000006ba00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f Xspllower() at Xspllower+0x1d cnputc(61) at cnputc+0x4f sys/dev/cons.c:218 db_putchar(61) at db_putchar+0x3fc sys/ddb/db_output.c:155 kprintf() at kprintf+0x6bc sys/kern/subr_prf.c:724 db_printf(ffffffff828133ac) at db_printf+0x89 sys/kern/subr_prf.c:498 panic(ffffffff82785800) at panic+0xdb sys/kern/subr_prf.c:216 vop_generic_badop(ffff80002e45afa8) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133 VOP_STRATEGY(fffffd8065d62de0,fffffd8071d615b8) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628 bwrite(fffffd8071d615b8) at bwrite+0x1f4 sys/kern/vfs_bio.c:760 VOP_BWRITE(fffffd8071d615b8) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640 ufs_mkdir(ffff80002e45b240) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235 VOP_MKDIR(fffffd8065ef0a50,ffff80002e45b3a0,ffff80002e45b3d0,ffff80002e45b2d0) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 domkdirat(ffff8000211f05f8,ffffff9c,7616321747d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 syscall(ffff80002e45b550) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e45b550) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x761632174840, count: -24 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827905eb) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82810fa3,ffffffff827f53fe,2a3,ffffffff827cc879) at __assert+0x29 sys/kern/subr_prf.c:157 proc_trampoline_mp() at proc_trampoline_mp+0x135 end trace frame: 0x0, count: 11 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff827905eb) at panic+0x17b sys/kern/subr_prf.c:198 __assert(ffffffff82810fa3,ffffffff827f53fe,2a3,ffffffff827cc879) at __assert+0x29 sys/kern/subr_prf.c:157 proc_trampoline_mp() at proc_trampoline_mp+0x135 end trace frame: 0x0, count: -4