uvm_fault(0xffffffff83a239c0, 0xffff800013772004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs_blkfree+0x254: movl 0x4(%r12),%r15d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*437911 84626 0 0x2 0 0K syz-executor
ffs_blkfree(fffffd806c4724c0,60bee,800) at ffs_blkfree+0x254 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_blkfree(fffffd806c4724c0,60bee,800) at ffs_blkfree+0x254 sys/ufs/ffs/ffs_alloc.c:1272
ffs_truncate(fffffd806c4724c0,0,4,fffffd80097fd3a8) at ffs_truncate+0x1399 sys/ufs/ffs/ffs_inode.c:325
ufs_rmdir(ffff80002a320980) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd80786191f0,fffffd806c4b81f0,ffff80002a320a58) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
dounlinkat(ffff8000fffee7e0,ffffff9c,7b399cc52b20,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1926
syscall(ffff80002a320bd0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a320bd0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b399cc52b10, count: 8
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: uvm_fault(0xffffffff83a239c0, 0xffff800013772004, 0, 1) -> d
ddb{0}> trace
ffs_blkfree(fffffd806c4724c0,60bee,800) at ffs_blkfree+0x254 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_blkfree(fffffd806c4724c0,60bee,800) at ffs_blkfree+0x254 sys/ufs/ffs/ffs_alloc.c:1272
ffs_truncate(fffffd806c4724c0,0,4,fffffd80097fd3a8) at ffs_truncate+0x1399 sys/ufs/ffs/ffs_inode.c:325
ufs_rmdir(ffff80002a320980) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd80786191f0,fffffd806c4b81f0,ffff80002a320a58) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
dounlinkat(ffff8000fffee7e0,ffffff9c,7b399cc52b20,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1926
syscall(ffff80002a320bd0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a320bd0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b399cc52b10, count: -7
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002a320700
rbx 0x60bee acpi_pdirpa+0x4ca5f
rdx 0
rcx 0xffff8000fffee7e0
rax 0xffffffff83901ff0 cpu_info_full_primary+0x1ff0
r8 0xffffffffffffffff
r9 0xffffffffffffffff
r10 0xea43f5195c2589c9
r11 0xda8bb96630dc183d
r12 0xffff800013772000
r13 0xffff800000c31800
r14 0xfffffd806f47fb18
r15 0
rip 0xffffffff820b55f4 ffs_blkfree+0x254
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a320640
ss 0x10
ffs_blkfree+0x254: movl 0x4(%r12),%r15d
ddb{0}> show proc
PROC (syz-executor) tid=437911 pid=84626 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a2222a8,0xffff8000fffee558
process=0xffff8000ffff6b58 user=0xffff80002a31b000, vmspace=0xfffffd800b0631e8
estcpu=36, cpticks=18, pctcpu=0.4, user=3, sys=15, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
6638 344049 89596 0 2 0 syz-executor
6638 406940 89596 0 2 0x4000000 syz-executor
42062 476595 57523 0 2 0 syz-executor
42062 66777 57523 0 2 0x4000000 syz-executor
20791 295737 62247 0 2 0xc80 syz-executor
20791 94019 62247 0 3 0x4000080 netcon syz-executor
20791 382024 62247 0 3 0x4000080 fsleep syz-executor
76251 411925 63660 0 2 0xc80 syz-executor
76251 457693 63660 0 3 0x4000088 kqpoll syz-executor
76251 340917 63660 0 3 0x4000080 fsleep syz-executor
5537 195905 58897 60929 2 0xc90 syz-executor
5537 495987 58897 60929 3 0x4000090 fsleep syz-executor
5537 362213 58897 60929 3 0x4000090 ttyout syz-executor
88567 243268 73420 0 2 0xc82 syz-executor
62247 195166 73420 0 2 0xc82 syz-executor
57523 399225 73420 0 2 0xc82 syz-executor
*84626 437911 73420 0 7 0x2 syz-executor
63660 437295 73420 0 2 0xc82 syz-executor
37015 501187 73420 0 2 0xc82 syz-executor
89596 111512 73420 0 2 0xc82 syz-executor
58897 36418 73420 0 2 0xc82 syz-executor
73420 258105 71124 0 3 0x82 kqread syz-executor
71124 191371 96684 0 3 0x10008a sigsusp ksh
96684 299815 45622 0 3 0x98 kqread sshd-session
45622 129043 14642 0 3 0x92 kqread sshd-session
45614 15281 1 0 3 0x100083 ttyopn getty
14642 149571 1 0 3 0x88 kqread sshd
71127 85267 31398 74 3 0x1100092 bpf pflogd
31398 167489 1 0 3 0x80 sbwait pflogd
10635 255518 7724 73 3 0x1100090 kqread syslogd
7724 497359 1 0 3 0x100082 sbwait syslogd
12253 471993 1 0 3 0x100080 kqread resolvd
74134 31171 27538 77 3 0x100092 kqread dhcpleased
16247 122749 27538 77 3 0x100092 kqread dhcpleased
27538 9326 1 0 3 0x80 kqread dhcpleased
24427 217991 0 0 3 0x14200 bored smr
62947 24795 0 0 2 0x14200 zerothread
42733 125567 0 0 3 0x14200 aiodoned aiodoned
37871 513532 0 0 3 0x14200 syncer update
90797 419757 0 0 3 0x14200 cleaner cleaner
25624 283438 0 0 3 0x14200 reaper reaper
48581 420504 0 0 3 0x14200 pgdaemon pagedaemon
38787 218938 0 0 3 0x14200 bored viomb
20015 27146 0 0 3 0x40014200 acpi0 acpi0
61873 90471 0 0 7 0x40014200 idle1
97479 167035 0 0 3 0x14200 bored softnet1
89692 423547 0 0 3 0x14200 bored softnet0
9251 10617 0 0 3 0x14200 bored systqmp
29722 207328 0 0 3 0x14200 bored systq
68410 366767 0 0 3 0x14200 tmoslp softclockmp
15024 316812 0 0 3 0x40014200 tmoslp softclock
2645 354704 0 0 3 0x40014200 idle0
1 308656 0 0 4 0x48000082 init
0 0 -1 0 3 0x10010200 scheduler swapper
ddb{0}> show all locks
Process 84626 (syz-executor) thread 0xffff8000fffee7e0 (437911)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a159c0)
#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 sleep_finish+0x2d8 sys/kern/kern_synch.c:369
#3 biowait+0xc6 sys/kern/vfs_bio.c:1242
#4 bwrite+0x2e7 sys/kern/vfs_bio.c:754
#5 ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111
#6 ffs_truncate+0xc9b sys/ufs/ffs/ffs_inode.c:-1
#7 ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
#8 VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
#9 dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1926
#10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806c472560)
#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+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vget+0x2a2 sys/kern/vfs_subr.c:686
#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+0x937 sys/kern/vfs_lookup.c:580
#11 namei+0x7c5 sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1893
#13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806ca978d0)
#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+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x10f sys/kern/vfs_lookup.c:431
#6 namei+0x7c5 sys/kern/vfs_lookup.c:250
#7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1893
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11072 12123K 12420K 166960K 12714 0
pcb 17 16K 20K 166960K 164 0
rtable 264 9K 9K 166960K 416 0
pf 43 19K 25K 166960K 136 0
ifaddr 45 8K 8K 166960K 62 0
ifgroup 60 2K 2K 166960K 103 0
sysctl 4 1K 9K 166960K 13 0
counters 72 37K 37K 166960K 108 0
ioctlops 0 0K 4K 166960K 1708 0
iov 0 0K 16K 166960K 21 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1359 86K 86K 166960K 1813 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 8 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 29 0
dirhash 12 2K 2K 166960K 18 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 17 61K 97K 166960K 555 0
sigio 0 0K 0K 166960K 5 0
proc 72 115K 164K 166960K 622 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 67 0
in_multi 99 7K 7K 166960K 113 0
ether_multi 1 0K 0K 166960K 4 0
mrt 1 0K 0K 166960K 16 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 85 387K 387K 166960K 85 0
exec 0 0K 1K 166960K 420 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 3 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 231 159K 178K 166960K 6909 0
UVM aobj 12 2K 2K 166960K 12 0
pinsyscall 42 84K 108K 166960K 1712 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 22 0
NDP 13 0K 2K 166960K 41 0
temp 79 9124K 9188K 166960K 28595 0
kqueue 14 22K 29K 166960K 100 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 120 113 0 110 3 0 3 3 0 8 2
rtentry 176 128 0 11 6 0 6 6 0 8 0
unpcb 144 349 0 332 4 0 4 4 0 8 3
syncache 336 25 0 25 1 0 1 1 0 8 1
tcpcb 736 330 0 323 10 3 7 10 0 8 6
arp 136 22 0 2 1 0 1 1 0 8 0
inpcb 328 734 0 722 16 8 8 16 0 8 6
nd6 152 28 0 2 2 0 2 2 0 8 1
pkpcb 40 8 0 8 1 0 1 1 0 8 1
kcovpl 48 8 0 0 1 0 1 1 0 8 0
ppxss 1192 11 0 11 1 0 1 1 0 8 1
pppxif 1576 1 0 1 1 0 1 1 0 8 1
pfstscr 40 10 0 6 1 0 1 1 0 8 0
pffrag 232 8 0 2 1 0 1 1 0 482 0
pffrnode 88 7 0 1 1 0 1 1 0 8 0
pffrent 40 11 0 5 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
pfstlim 224 1 0 1 1 0 1 1 0 8 1
pfanchor 1288 10 0 0 1 0 1 1 0 8 0
pftag 88 3 0 0 1 0 1 1 0 8 0
pfstitem 24 67 0 2 1 0 1 1 0 8 0
pfstkey 128 75 0 11 3 0 3 3 0 8 0
pfstate 448 67 0 6 7 0 7 7 0 8 0
pfrule 1360 29 0 25 2 1 1 2 0 8 0
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 521 0 37 31 0 31 31 0 8 0
art_table 40 523 0 37 5 0 5 5 0 8 0
art_node 32 128 0 21 1 0 1 1 0 8 0
sysvmsgpl 40 3 0 3 1 0 1 1 0 8 1
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 64 24 0 14 1 0 1 1 0 8 0
shmpl 112 9 0 0 1 0 1 1 0 8 0
dirhash 1024 21 0 4 3 0 3 3 0 8 0
dino2pl 256 2396 0 934 93 0 93 93 0 8 0
ffsino 296 2396 0 934 114 0 114 114 0 8 0
nchpl 144 3184 0 1477 64 0 64 64 0 8 0
rtmask 32 3 0 3 1 0 1 1 0 8 1
vnodes 216 2738 0 0 153 0 153 153 0 8 0
namei 1024 10518 0 10518 2 1 1 2 0 8 1
percpumem 16 69 0 18 1 0 1 1 0 8 0
kstatmem 264 53 0 24 3 0 3 3 0 8 1
scsiplug 72 1 0 1 1 0 1 1 0 8 1
scxspl 216 14471 0 14471 11 3 8 8 1 8 8
plimitpl 152 68 0 50 1 0 1 1 0 8 0
sigapl 424 871 0 824 7 1 6 7 0 8 0
knotepl 120 527 0 0 16 0 16 16 0 8 0
kqueuepl 224 194 0 183 5 0 5 5 0 8 4
pipepl 344 144 0 117 3 0 3 3 0 8 0
fdescpl 528 855 0 824 3 0 3 3 0 8 0
filepl 160 4825 0 4598 19 1 18 18 0 8 8
lockfpl 104 161 0 158 1 0 1 1 0 8 0
lockfspl 48 67 0 64 1 0 1 1 0 8 0
sessionpl 144 42 0 33 1 0 1 1 0 8 0
pgrppl 48 53 0 36 1 0 1 1 0 8 0
ucredpl 104 625 0 611 1 0 1 1 0 8 0
zombiepl 144 826 0 824 1 0 1 1 0 8 0
processpl 1232 871 0 824 5 1 4 5 0 8 0
procpl 664 1514 0 1459 6 0 6 6 0 8 0
sosppl 176 1 0 1 1 0 1 1 0 8 1
sockpl 752 1220 0 1188 26 14 12 21 0 8 7
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
mcl9k128 9344 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 123 0 0 16 0 16 16 0 8 0
mcl2k 2048 31 0 0 4 0 4 4 0 8 0
mtagpl 96 5 0 0 1 0 1 1 0 8 0
mbufpl 256 213 0 0 14 0 14 14 0 8 0
bufpl 280 7383 0 1042 454 0 454 454 0 8 0
anonpl 32 10183 0 0 82 0 82 82 0 246 0
amapchunkpl 152 21731 0 21262 36 0 36 36 0 158 16
amappl16 200 2552 0 2522 26 12 14 23 0 8 8
amappl15 192 9 0 9 2 2 0 1 0 8 0
amappl14 184 428 0 427 1 0 1 1 0 8 0
amappl13 176 125 0 113 1 0 1 1 0 8 0
amappl12 168 1107 0 1077 2 0 2 2 0 8 0
amappl11 160 6 0 6 1 1 0 1 0 8 0
amappl10 152 71 0 57 1 0 1 1 0 8 0
amappl9 144 278 0 278 1 1 0 1 0 8 0
amappl8 136 118 0 114 1 0 1 1 0 8 0
amappl7 128 150 0 137 1 0 1 1 0 8 0
amappl6 120 158 0 156 1 0 1 1 0 8 0
amappl5 112 95 0 84 1 0 1 1 0 8 0
amappl4 104 292 0 272 1 0 1 1 0 8 0
amappl3 96 4255 0 4144 4 0 4 4 0 8 0
amappl2 88 573 0 509 2 0 2 2 0 8 0
amappl1 80 11949 0 11347 16 0 16 16 0 8 2
amappl 88 6084 0 5924 5 0 5 5 0 92 1
uvmvnodes 80 119 0 0 3 0 3 3 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 1 1 1 0 8 1
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 11 0 0 1 0 1 1 0 8 0
uaddrrnd 24 855 0 824 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 855 0 824 1 0 1 1 0 8 0
vmmpekpl 168 8611 0 8579 2 0 2 2 0 8 0
vmmpepl 168 61888 0 59978 104 0 104 104 0 357 8
vmsppl 488 854 0 824 5 0 5 5 0 8 0
rwobjpl 80 19454 0 18399 30 0 30 30 0 8 3
pdppl 4096 1717 0 1648 105 32 73 87 0 8 4
pvpl 32 18824 0 0 153 1 152 152 0 265 0
pmappl 256 854 0 824 3 0 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 299 0 39 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ffs_blkfree(fffffd806c4724c0,60bee,800) at ffs_blkfree+0x254 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_blkfree(fffffd806c4724c0,60bee,800) at ffs_blkfree+0x254 sys/ufs/ffs/ffs_alloc.c:1272
ffs_truncate(fffffd806c4724c0,0,4,fffffd80097fd3a8) at ffs_truncate+0x1399 sys/ufs/ffs/ffs_inode.c:325
ufs_rmdir(ffff80002a320980) at ufs_rmdir+0x2f1 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd80786191f0,fffffd806c4b81f0,ffff80002a320a58) at VOP_RMDIR+0x192 sys/kern/vfs_vops.c:413
dounlinkat(ffff8000fffee7e0,ffffff9c,7b399cc52b20,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1926
syscall(ffff80002a320bd0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a320bd0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b399cc52b10, count: -7
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff80002999dff0) 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(ffff80002999dff0) at sched_idle+0x371 sys/kern/kern_sched.c:192
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff80002999dff0) 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(ffff80002999dff0) at sched_idle+0x371 sys/kern/kern_sched.c:192
end trace frame: 0x0, count: -5