panic: kernel diagnostic assertion "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 303 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *462211 83878 0 0 0x4000000 0K syz-executor.6 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a99a1) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82621ad9,ffffffff82668ab5,12f,ffffffff82633033) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000c10800) at tun_clone_destroy+0x278 sys/net/if_tun.c:303 if_clone_destroy(ffff80002ff86370) at if_clone_destroy+0x132 sys/net/if.c:1277 ifioctl(fffffd806e2193e8,80206979,ffff80002ff86370,ffff800021297508) at ifioctl+0x3d4 sys/net/if.c:1954 sys_ioctl(ffff800021297508,ffff80002ff86488,ffff80002ff864d0) at sys_ioctl+0x4a2 syscall(ffff80002ff86550) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002ff86550) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5a6a280fe30, count: 6 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 "sc->sc_dev == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/net/if_tun.c", line 303 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a99a1) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82621ad9,ffffffff82668ab5,12f,ffffffff82633033) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000c10800) at tun_clone_destroy+0x278 sys/net/if_tun.c:303 if_clone_destroy(ffff80002ff86370) at if_clone_destroy+0x132 sys/net/if.c:1277 ifioctl(fffffd806e2193e8,80206979,ffff80002ff86370,ffff800021297508) at ifioctl+0x3d4 sys/net/if.c:1954 sys_ioctl(ffff800021297508,ffff80002ff86488,ffff80002ff864d0) at sys_ioctl+0x4a2 syscall(ffff80002ff86550) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002ff86550) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5a6a280fe30, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002ff86120 rbx 0xffffffff8299bb8f cpu_info_full_primary+0x2b8f rdx 0xffff800000bfd0c0 rcx 0 rax 0xffff800021297508 r8 0 r9 0x8080808080808080 r10 0x22886593f1120cf r11 0xea8b9f5daff45848 r12 0xffffffff8299b990 cpu_info_full_primary+0x2990 r13 0 r14 0 r15 0x1 rip 0xffffffff81f2baf8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002ff86110 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.6) pid=462211 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff800021258540,0xffff8000212962b8 process=0xffff800021298010 user=0xffff80002ff81000, vmspace=0xfffffd806657eb90 estcpu=33, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63492 383522 77541 0 2 0 syz-executor.5 63492 484539 77541 0 3 0x4000080 fsleep syz-executor.5 83878 131710 5235 0 2 0 syz-executor.6 *83878 462211 5235 0 7 0x4000000 syz-executor.6 77371 257674 69092 0 2 0 syz-executor.1 77371 139304 69092 0 3 0x4000080 fsleep syz-executor.1 39497 41231 8308 0 2 0 syz-executor.7 39497 243229 8308 0 2 0x4000000 syz-executor.7 21104 1276 68595 0 2 0x480 syz-executor.0 21104 497240 68595 0 3 0x4000080 ttyin syz-executor.0 21104 219195 68595 0 3 0x4000080 fsleep syz-executor.0 66669 140145 66923 60928 2 0x490 syz-executor.2 66669 168189 66923 60928 3 0x4000090 kqpoll syz-executor.2 77541 387396 56757 0 2 0x482 syz-executor.5 77657 268714 56757 0 2 0x482 syz-executor.3 5235 185016 56757 0 2 0x482 syz-executor.6 69092 18521 56757 0 2 0x482 syz-executor.1 37036 80479 1 0 3 0x100083 ttyin getty 18024 425683 56757 0 2 0x2 syz-executor.4 66923 59687 56757 0 2 0x482 syz-executor.2 68595 468843 56757 0 2 0x482 syz-executor.0 71072 301566 0 0 3 0x14200 acct acct 8308 259970 56757 0 2 0x482 syz-executor.7 49835 312622 0 0 3 0x14200 bored sosplice 4702 211846 1 0 3 0 vmmapbsy syz-executor.2 4702 163533 1 0 3 0x4000000 vmmaplk syz-executor.2 56757 242302 22643 0 3 0x82 wait syz-fuzzer 56757 297749 22643 0 3 0x4000082 thrsleep syz-fuzzer 56757 22654 22643 0 3 0x4000082 wait syz-fuzzer 56757 5876 22643 0 3 0x4000082 thrsleep syz-fuzzer 56757 498455 22643 0 3 0x4000082 thrsleep syz-fuzzer 56757 732 22643 0 3 0x4000082 thrsleep syz-fuzzer 56757 184638 22643 0 3 0x4000082 thrsleep syz-fuzzer 56757 291679 22643 0 3 0x4000082 kqread syz-fuzzer 56757 331064 22643 0 3 0x4000082 thrsleep syz-fuzzer 56757 239613 22643 0 3 0x4000082 wait syz-fuzzer 56757 224761 22643 0 3 0x4000082 wait syz-fuzzer 56757 278035 22643 0 3 0x4000082 wait syz-fuzzer 56757 44236 22643 0 3 0x4000082 wait syz-fuzzer 56757 154409 22643 0 3 0x4000082 wait syz-fuzzer 56757 174092 22643 0 3 0x4000082 wait syz-fuzzer 56757 114568 22643 0 3 0x4000082 thrsleep syz-fuzzer 22643 190796 39406 0 3 0x10008a sigsusp ksh 39406 448611 20125 0 3 0x9a kqread sshd 20125 386538 1 0 3 0x88 kqread sshd 23575 471606 16119 74 3 0x1100092 bpf pflogd 16119 428790 1 0 3 0x80 netio pflogd 75601 37172 88923 73 3 0x1100090 kqread syslogd 88923 414489 1 0 3 0x100082 netio syslogd 85992 240313 1 0 3 0x100080 kqread resolvd 68540 152250 0 0 3 0x14200 bored smr 75469 513087 0 0 2 0x14200 zerothread 91177 486534 0 0 3 0x14200 aiodoned aiodoned 20900 468644 0 0 3 0x14200 syncer update 57117 256137 0 0 3 0x14200 cleaner cleaner 13088 283805 0 0 3 0x14200 reaper reaper 15005 411150 0 0 3 0x14200 pgdaemon pagedaemon 21750 430344 0 0 3 0x14200 bored viomb 20294 352128 0 0 3 0x40014200 acpi0 acpi0 51367 161997 0 0 7 0x40014200 idle1 29217 521027 0 0 3 0x14200 bored softnet 76562 520729 0 0 3 0x14200 bored softnet 44471 499507 0 0 3 0x14200 bored softnet 47741 353523 0 0 3 0x14200 bored softnet 83476 422636 0 0 3 0x14200 bored systqmp 37768 69310 0 0 3 0x14200 bored systq 89730 439943 0 0 3 0x40014200 bored softclock 9876 40796 0 0 3 0x40014200 idle0 1 323714 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 83878 (syz-executor.6) thread 0xffff800021297508 (462211) exclusive rwlock clonelk r = 0 (0xffffffff829b0180) #0 witness_lock+0x44d #1 if_clone_destroy+0x49 #2 ifioctl+0x3d4 sys/net/if.c:1954 #3 sys_ioctl+0x4a2 #4 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #4 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82a225b0) #0 witness_lock+0x44d #1 ifioctl+0x3cc sys/net/if.c:1954 #2 sys_ioctl+0x4a2 #3 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #3 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #4 Xsyscall+0x128 Process 39497 (syz-executor.7) thread 0xffff800021258000 (243229) exclusive rrwlock inode r = 0 (0xfffffd806f2c7810) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vn_write+0x123 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x19c sys/kern/sys_generic.c:375 #7 sys_write+0x83 sys/kern/sys_generic.c:295 #8 syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] #8 syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 #9 Xsyscall+0x128 Process 4702 (syz-executor.2) thread 0xffff8000ffff4550 (163533) shared rwlock vmmaplk r = 0 (0xfffffd806484f480) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0xda sys/uvm/uvm_map.c:5323 #3 uvm_map_pageable_all+0x56 sys/uvm/uvm_map.c:2406 #4 sys_mlockall+0x5d sys/uvm/uvm_mmap.c:895 #5 syscall+0x438 mi_syscall sys/sys/syscall_mi.h:101 [inline] #5 syscall+0x438 sys/arch/amd64/amd64/trap.c:599 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10239 6520K 7412K 78643K 17282 0 pcb 14 22K 32K 78643K 27752 0 rtable 189 18K 22K 78643K 13534 0 ifaddr 235 65K 71K 78643K 4753 0 sysctl 3 1K 3K 78643K 14 0 counters 52 35K 36K 78643K 1950 0 ioctlops 0 0K 6K 78643K 14137 0 iov 0 0K 32K 78643K 4006 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1688 106K 106K 78643K 20887 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 329 0 VM map 2 1K 1K 78643K 2 0 sem 23 20K 40K 78643K 1517 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 17 61K 93K 78643K 34246 0 sigio 0 0K 0K 78643K 557 0 proc 65 67K 128K 78643K 6062 0 subproc 117 7K 7K 78643K 2106 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 2886 0 in_multi 46 3K 7K 78643K 2551 0 ether_multi 1 0K 0K 78643K 130 0 mrt 2 0K 0K 78643K 76 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 277 1235K 1235K 78643K 277 0 exec 0 0K 1K 78643K 6884 0 pfkey data 0 0K 0K 78643K 17 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 894 2413K 2413K 78643K 225402 0 UVM aobj 131 4K 4K 78643K 141 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 705 0 NDP 14 0K 1K 78643K 1006 0 temp 151 4739K 70270K 78643K 303320 0 kqueue 6 10K 24K 78643K 2518 0 SYN cache 2 136K 144K 78643K 3 0 ddb{0}> 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 3618 0 3617 20 19 1 3 0 8 0 rtentry 112 2319 0 2261 7 4 3 4 0 8 0 unpcb 144 19812 0 19803 232 227 5 10 0 8 4 syncache 296 65 0 65 15 15 0 1 0 8 0 tcpqe 32 328 128 328 8 8 0 1 0 8 0 tcpcb 776 12190 0 12186 297 296 1 14 0 8 0 arp 120 349 0 338 1 0 1 1 0 8 0 inpcb 368 55396 0 55391 542 535 7 22 0 8 6 nd6 48 533 0 521 1 0 1 1 0 8 0 pkpcb 40 78 0 78 17 17 0 1 0 8 0 kcovpl 48 160 0 151 1 0 1 1 0 8 0 mppekey 1024 81 0 81 5 5 0 1 0 8 0 ppxss 1256 613 0 613 65 64 1 1 0 8 1 pppxif 1704 131 0 131 26 26 0 1 0 8 0 pfstscr 40 15 0 13 2 1 1 1 0 8 0 pffrag 232 109 0 109 14 14 0 1 0 482 0 pffrnode 88 109 0 109 14 14 0 1 0 8 0 pffrent 40 250 0 250 16 16 0 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 2557 0 2538 7 4 3 3 0 8 0 pfanchor 1280 829 0 368 39 0 39 39 0 8 0 pftag 88 8 0 0 1 0 1 1 0 8 0 pfqueue 264 10 0 10 3 3 0 1 0 8 0 pfstitem 24 79 0 73 1 0 1 1 0 8 0 pfstkey 120 93 0 88 1 0 1 1 0 8 0 pfstate 336 78 0 74 2 1 1 2 0 8 0 pfrule 1360 766 0 709 6 1 5 5 0 8 0 rttmr 136 7 0 7 2 2 0 1 0 8 0 art_heap8 4096 21 0 20 17 16 1 3 0 8 0 art_heap4 256 10755 0 10534 81 60 21 30 0 8 0 art_table 32 10776 0 10554 5 2 3 4 0 8 0 art_node 16 2302 0 2254 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 3 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 1497 0 1476 1 0 1 1 0 8 0 shmpl 112 138 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 48986 0 47420 99 0 99 99 0 8 0 ffsino 272 48986 0 47420 105 0 105 105 0 8 0 nchpl 144 95816 0 95318 63 39 24 63 0 8 0 rtmask 32 22 0 22 10 9 1 1 0 8 1 uvmvnodes 80 8355 0 0 171 0 171 171 0 8 0 vnodes 216 8355 0 0 465 0 465 465 0 8 0 namei 1024 334400 0 334400 23 22 1 2 0 8 1 percpumem 16 987 0 949 1 0 1 1 0 8 0 vcpupl 2048 459 0 0 58 0 58 58 0 8 0 vmpool 568 550 0 91 34 1 33 33 0 8 0 pfiaddrpl 120 925 0 900 1 0 1 1 0 8 0 kstatmem 264 1228 0 1200 10 7 3 3 0 8 0 scsiplug 72 28 0 28 9 9 0 1 0 8 0 scxspl 216 291670 0 291670 53 52 1 8 0 8 1 plimitpl 152 3778 0 3760 1 0 1 1 0 8 0 sigapl 424 34308 0 34261 10 4 6 8 0 8 0 futexpl 64 342624 0 342621 16 15 1 1 0 8 0 knotepl 120 1911 0 0 18 0 18 18 0 8 0 kqueuepl 216 7237 0 7231 80 79 1 6 0 8 0 pipepl 320 6205 0 6176 137 134 3 9 0 8 0 fdescpl 496 34249 0 34222 5 0 5 5 0 8 0 filepl 152 245046 0 244800 390 376 14 24 0 8 4 lockfpl 104 22160 0 22156 46 45 1 4 0 8 0 lockfspl 48 4894 0 4890 1 0 1 1 0 8 0 sessionpl 144 183 0 166 1 0 1 1 0 8 0 pgrppl 48 396 0 379 1 0 1 1 0 8 0 ucredpl 104 25142 0 25127 1 0 1 1 0 8 0 zombiepl 144 34262 0 34261 5 4 1 1 0 8 0 processpl 1064 34308 0 34261 5 0 5 5 0 8 0 procpl 672 90746 0 90676 20 12 8 10 0 8 0 srpgc 96 217 0 217 43 42 1 1 0 8 1 sosppl 168 130 0 130 19 19 0 1 0 8 0 sockpl 488 79095 0 79080 1265 1254 11 35 0 8 8 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 32 0 0 4 1 3 3 0 8 0 mcl12k 12288 33 0 0 2 0 2 2 0 8 0 mcl9k 9216 33 0 0 2 0 2 2 0 8 0 mcl8k 8192 34 0 0 5 2 3 3 0 8 0 mcl4k 4096 25 0 0 3 0 3 3 0 8 0 mcl2k2 2112 13 0 0 1 0 1 1 0 8 0 mcl2k 2048 619 0 0 63 43 20 63 0 8 0 mtagpl 96 39 0 0 1 0 1 1 0 8 0 mbufpl 256 2737 0 0 137 3 134 134 0 8 0 bufpl 288 57740 0 49383 598 0 598 598 0 8 0 anonpl 24 6705844 0 6687482 286 160 126 141 0 186 0 amapchunkpl 152 625669 0 624601 104 55 49 54 0 158 0 amappl16 200 69325 0 68682 127 90 37 47 0 8 0 amappl15 192 61 0 59 1 0 1 1 0 8 0 amappl14 184 702 0 681 3 1 2 2 0 8 0 amappl13 176 39 0 39 13 13 0 1 0 8 0 amappl12 168 2245 0 2235 1 0 1 1 0 8 0 amappl11 160 57 0 49 1 0 1 1 0 8 0 amappl10 152 206 0 183 1 0 1 1 0 8 0 amappl9 144 1293 0 1291 1 0 1 1 0 8 0 amappl8 136 1641 0 1417 8 0 8 8 0 8 0 amappl7 128 197 0 178 1 0 1 1 0 8 0 amappl6 120 2097 0 2073 2 1 1 2 0 8 0 amappl5 112 572 0 562 1 0 1 1 0 8 0 amappl4 104 4354 0 4307 4 2 2 3 0 8 0 amappl3 96 98919 0 98864 2 0 2 2 0 8 0 amappl2 88 38296 0 38228 3 1 2 3 0 8 0 amappl1 80 765495 0 764796 25 9 16 23 0 8 0 amappl 88 222840 0 222445 10 0 10 10 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 72 140 0 10 3 0 3 3 0 8 0 uaddrrnd 24 34799 0 34313 3 0 3 3 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 34799 0 34313 3 0 3 3 0 8 0 vmmpekpl 168 228422 0 228302 7 1 6 6 0 8 0 vmmpepl 168 3179222 0 3175470 611 424 187 191 0 357 15 vmsppl 368 34798 0 34313 45 0 45 45 0 8 0 rwobjpl 56 814117 0 803500 183 32 151 154 0 8 0 pdppl 4096 69605 0 69085 1861 1337 524 524 0 8 4 pvpl 32 13999545 0 13975714 733 517 216 267 0 265 1 pmappl 248 34798 0 34313 32 1 31 31 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 3728 0 2092 47 0 47 47 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff825a99a1) at panic+0x177 sys/kern/subr_prf.c:198 __assert(ffffffff82621ad9,ffffffff82668ab5,12f,ffffffff82633033) at __assert+0x25 sys/kern/subr_prf.c:157 tun_clone_destroy(ffff800000c10800) at tun_clone_destroy+0x278 sys/net/if_tun.c:303 if_clone_destroy(ffff80002ff86370) at if_clone_destroy+0x132 sys/net/if.c:1277 ifioctl(fffffd806e2193e8,80206979,ffff80002ff86370,ffff800021297508) at ifioctl+0x3d4 sys/net/if.c:1954 sys_ioctl(ffff800021297508,ffff80002ff86488,ffff80002ff864d0) at sys_ioctl+0x4a2 syscall(ffff80002ff86550) at syscall+0x4c2 mi_syscall sys/sys/syscall_mi.h:101 [inline] syscall(ffff80002ff86550) at syscall+0x4c2 sys/arch/amd64/amd64/trap.c:599 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x5a6a280fe30, count: -9 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a 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 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020dd8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: 10 ddb{1}> trace x86_ipi_db(ffff800020dd8ff0) at x86_ipi_db+0x1a 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 acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800020dd8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:175 end trace frame: 0x0, count: -5