uvm_fault(0xfffff5806d0c5d80, 0x6a5f36b4, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at sys_msgget+0xa0: movq 0x18(%r14),%r15
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*201337 32626 32767 0x10 0x4000000 1K syz-executor
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 que_key_lookup sys/kern/sysv_msg.c:477 [inline]
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 sys/kern/sysv_msg.c:197
syscall(ffff80002df92880) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002df92880) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa05d8c2f40, count: 12
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
*cpu1: uvm_fault(0xfffff5806d0c5d80, 0x6a5f36b4, 0, 1) -> e
ddb{1}> show kasan
No such command
ddb{1}> trace
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 que_key_lookup sys/kern/sysv_msg.c:477 [inline]
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 sys/kern/sysv_msg.c:197
syscall(ffff80002df92880) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002df92880) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa05d8c2f40, count: -3
ddb{1}> show registers
rdi 0xffff800038b92000
rsi 0x31
rbp 0xffff80002df927a0
rbx 0x200
rdx 0xffff800038b92000
rcx 0x30
rax 0xffffffff83357712 sys_msgget+0xd2
r8 0xffffffff82d2a4b0 uvm_map_inentry_sp
r9 0
r10 0
r11 0x5a82415c45e6051f
r12 0x22
r13 0x798e7472
r14 0x6a5f369c
r15 0x1000 __ALIGN_SIZE
rip 0xffffffff833576e0 sys_msgget+0xa0
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002df92730
ss 0x10
sys_msgget+0xa0: movq 0x18(%r14),%r15
ddb{1}> show proc
PROC (syz-executor) tid=201337 pid=32626 tcnt=2 stat=onproc
flags process=10<SUGID> proc=4000000<THREAD>
runpri=32, usrpri=77, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003bbb9a10,0xffff80003bbb8030
process=0xffff80003177d828 user=0xffff80002df8d000, vmspace=0xfffff5806d0c5d80
estcpu=27, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
32626 522189 81342 32767 2 0x10 0 syz-executor
*32626 201337 81342 32767 7 0x10 0x4000000 syz-executor
74126 415504 50139 32767 2 0x10 0 syz-executor
74126 187550 50139 32767 3 0x10 0x4000080 fsleep syz-executor
74126 411134 50139 32767 3 0x10 0x4000080 fsleep syz-executor
76443 450733 40920 32767 2 0x10 0 syz-executor
76443 361998 40920 32767 3 0x10 0x4000080 fsleep syz-executor
76443 223172 40920 32767 2 0x10 0x4000000 syz-executor
90892 21628 40671 32767 3 0x10 0x80 nanoslp syz-executor
17432 206502 83071 32767 2 0x10 0 syz-executor
81342 59262 87132 32767 3 0x10 0x80 nanoslp syz-executor
50139 71328 91724 32767 3 0x10 0x80 nanoslp syz-executor
38276 32781 47382 32767 3 0x10 0x80 piperd syz-executor
40920 11388 31967 32767 3 0x10 0x80 nanoslp syz-executor
54321 154564 47853 32767 3 0x10 0 biowait syz-executor
87132 169631 44062 0 3 0x2 0x80 wait syz-executor
91724 314306 44062 0 3 0x2 0x80 wait syz-executor
47382 461928 44062 0 3 0x2 0x80 wait syz-executor
31967 6840 44062 0 3 0x2 0x80 wait syz-executor
47853 113703 44062 0 3 0x2 0x80 wait syz-executor
83071 11959 44062 0 3 0x2 0x80 wait syz-executor
40671 149196 44062 0 3 0x2 0x80 wait syz-executor
44062 479184 42859 0 3 0x2 0x80 nanoslp syz-executor
42859 98107 43729 0 3 0x100002 0x88 sigsusp ksh
43729 11042 95028 0 3 0x10 0x88 kqread sshd-session
95028 63466 13187 0 3 0x12 0x80 kqread sshd-session
97990 337748 1 0 3 0x100003 0x80 ttyin getty
13187 271119 1 0 3 0 0x88 kqread sshd
78959 64839 36464 73 3 0x1100010 0x80 kqread syslogd
36464 319990 1 0 3 0x100002 0x80 sbwait syslogd
9406 272373 1 0 3 0x100000 0x80 kqread resolvd
45733 411084 72333 77 3 0x100012 0x80 kqread dhcpleased
73191 93752 72333 77 3 0x100012 0x80 kqread dhcpleased
72333 196886 1 0 3 0 0x80 kqread dhcpleased
28358 108297 0 0 3 0x14000 0x200 bored smr
54273 193495 0 0 2 0x14000 0x200 zerothread
70177 450406 0 0 3 0x14000 0x200 aiodoned aiodoned
50255 30572 0 0 3 0x14000 0x200 syncer update
36844 79305 0 0 3 0x14000 0x200 cleaner cleaner
15436 189054 0 0 3 0x14000 0x200 reaper reaper
35281 84413 0 0 3 0x14000 0x200 pgdaemon pagedaemon
76933 470071 0 0 3 0x14000 0x200 bored viomb
56813 5032 0 0 3 0x14000 0x40000200 acpi0 acpi0
39480 340395 0 0 3 0x14000 0x40000200 idle1
70138 279324 0 0 3 0x14000 0x200 bored softnet1
41218 232473 0 0 3 0x14000 0x200 bored softnet0
74448 525 0 0 3 0x14000 0x200 bored systqmp
42319 39637 0 0 3 0x14000 0x200 bored systq
8332 493606 0 0 3 0x14000 0x200 tmoslp softclockmp
26145 325827 0 0 3 0x14000 0x40000200 tmoslp softclock
28459 111327 0 0 3 0x14000 0x40000200 idle0
1 384407 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb{1}> show all locks
CPU 0:
exclusive mutex &pmap->pm_mtx r = 0 (0xfffff5806d0c4510)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline]
#2 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:441 [inline]
#2 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1834
#3 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869
#4 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
#4 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
#5 exit1+0x71b sys/kern/kern_exit.c:260
#6 sys_exit+0x1a sys/kern/kern_exit.c:-1
#7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#8 Xsyscall+0x128
Process 32626 (syz-executor) thread 0xffff80003bbb87e8 (201337)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a3e400)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783
#2 Xsyscall+0x128
Process 17432 (syz-executor) thread 0xffff80003bbb8d18 (206502)
exclusive rrwlock inode r = 0 (0xfffff5806959c8e8)
#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:692
#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+0x963 sys/kern/vfs_lookup.c:580
#11 namei+0x7c5 sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807
#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 (0xfffff5806d25ed68)
#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+0x12b sys/kern/vfs_lookup.c:431
#6 namei+0x7c5 sys/kern/vfs_lookup.c:250
#7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807
#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
Process 54321 (syz-executor) thread 0xffff800045fee548 (154564)
exclusive rrwlock inode r = 0 (0xfffff5806cec1ea8)
#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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline]
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:150
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232
#6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3063
#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 (0xfffff5806d25e300)
#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+0x12b sys/kern/vfs_lookup.c:431
#6 namei+0x7c5 sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3048
#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{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11049 12016K 12034K 166960K 12143 0
pcb 17 12K 12K 166960K 17 0
rtable 225 6K 7K 166960K 452 0
pf 29 16K 16K 166960K 31 0
ifaddr 38 6K 7K 166960K 44 0
ifgroup 46 2K 2K 166960K 50 0
sysctl 2 1K 9K 166960K 8 0
counters 68 36K 37K 166960K 70 0
ioctlops 0 0K 4K 166960K 127 0
iov 0 0K 12K 166960K 48 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1287 81K 81K 166960K 1733 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 21 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 124 0
dirhash 12 2K 2K 166960K 21 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 19 69K 121K 166960K 878 0
sigio 0 0K 0K 166960K 13 0
proc 58 99K 163K 166960K 587 0
subproc 63 3K 4K 166960K 234 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 127 0
in_multi 88 6K 7K 166960K 124 0
ether_multi 1 0K 0K 166960K 4 0
mrt 2 0K 0K 166960K 19 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 73 334K 334K 166960K 73 0
exec 0 0K 1K 166960K 437 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 207 150K 177K 166960K 9313 0
UVM aobj 95 3K 3K 166960K 98 0
pinsyscall 40 80K 110K 166960K 1998 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 36 0
NDP 10 0K 2K 166960K 27 0
temp 70 9127K 9144K 166960K 5556 0
kqueue 13 20K 32K 166960K 175 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 28 0 0 1 0 1 1 0 8 0
rtpcb 120 168 0 164 3 2 1 3 0 8 0
rtentry 176 122 0 18 6 0 6 6 0 8 0
unpcb 144 458 0 442 2 1 1 2 0 8 0
syncache 336 13 0 13 3 2 1 1 0 8 1
tcpcb 736 449 0 445 10 9 1 7 0 8 0
arp 136 19 0 2 1 0 1 1 0 8 0
ipq 40 4 0 1 1 0 1 1 0 8 0
ipqe 40 4 0 1 1 0 1 1 0 8 0
inpcb 328 1019 0 1003 9 7 2 8 0 8 0
ip6q 72 7 0 3 1 0 1 1 0 8 0
ip6af 40 11 0 6 1 0 1 1 0 8 0
nd6 152 34 0 9 2 0 2 2 0 8 0
kcovpl 48 26 0 19 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 537 0 96 31 1 30 31 0 8 0
art_table 40 538 0 96 5 0 5 5 0 8 0
art_node 32 122 0 27 1 0 1 1 0 8 0
sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 72 116 0 106 1 0 1 1 0 8 0
shmpl 112 95 0 3 3 0 3 3 0 8 0
dirhash 1024 23 0 6 3 0 3 3 0 8 0
dino2pl 256 2730 0 1243 94 0 94 94 0 8 0
ffsino 296 2730 0 1243 115 0 115 115 0 8 0
nchpl 144 3891 0 2181 64 0 64 64 0 8 0
vnodes 216 2973 0 0 166 0 166 166 0 8 0
namei 1024 12615 0 12614 2 1 1 2 0 8 0
percpumem 16 51 0 1 1 0 1 1 0 8 0
kstatmem 264 25 0 2 2 0 2 2 0 8 0
scxspl 216 12403 0 12402 13 10 3 8 1 8 2
plimitpl 152 162 0 140 2 0 2 2 0 8 1
sigapl 424 1141 0 1093 8 1 7 7 0 8 1
knotepl 120 522 0 0 16 0 16 16 0 8 0
kqueuepl 224 239 0 229 3 2 1 3 0 8 0
pipepl 344 258 0 231 3 0 3 3 0 8 0
fdescpl 528 1125 0 1094 3 0 3 3 0 8 0
filepl 160 6677 0 6472 13 3 10 13 0 8 1
lockfpl 104 231 0 229 1 0 1 1 0 8 0
lockfspl 48 85 0 83 1 0 1 1 0 8 0
sessionpl 144 84 0 69 1 0 1 1 0 8 0
pgrppl 48 117 0 95 1 0 1 1 0 8 0
ucredpl 104 1523 0 1505 1 0 1 1 0 8 0
zombiepl 144 1094 0 1093 1 0 1 1 0 8 0
processpl 1232 1141 0 1093 5 0 5 5 0 8 1
procpl 664 2282 0 2229 7 1 6 7 0 8 1
sosppl 176 7 0 7 1 1 0 1 0 8 0
sockpl 752 1654 0 1617 12 8 4 11 0 8 0
mcl64k 65536 6 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k128 9344 4 0 0 1 0 1 1 0 8 0
mcl8k 8192 4 0 0 1 0 1 1 0 8 0
mcl4k 4096 117 0 0 15 0 15 15 0 8 0
mcl2k2 2112 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 25 0 0 4 0 4 4 0 8 0
mextrefs 64 17 0 0 1 0 1 1 0 8 0
mtagpl 96 4 0 0 1 0 1 1 0 8 0
mbufpl 256 8638 0 0 540 0 540 540 0 8 0
bufpl 272 3597 0 114 233 0 233 233 0 8 0
anonpl 32 15567 0 0 126 0 126 126 0 247 0
amapchunkpl 152 30064 0 29639 33 11 22 33 0 158 1
amappl16 200 4206 0 4170 28 17 11 26 0 8 5
amappl15 192 47 0 47 1 1 0 1 0 8 0
amappl14 184 415 0 414 1 0 1 1 0 8 0
amappl13 176 131 0 121 1 0 1 1 0 8 0
amappl12 168 1362 0 1332 2 0 2 2 0 8 0
amappl11 160 60 0 60 1 1 0 1 0 8 0
amappl10 152 74 0 64 1 0 1 1 0 8 0
amappl9 144 271 0 271 1 1 0 1 0 8 0
amappl8 136 123 0 121 1 0 1 1 0 8 0
amappl7 128 151 0 139 1 0 1 1 0 8 0
amappl6 120 148 0 146 1 0 1 1 0 8 0
amappl5 112 110 0 102 1 0 1 1 0 8 0
amappl4 104 301 0 285 1 0 1 1 0 8 0
amappl3 96 5988 0 5885 5 1 4 4 0 8 0
amappl2 88 603 0 546 2 0 2 2 0 8 0
amappl1 80 15354 0 14800 20 4 16 16 0 8 2
amappl 88 8446 0 8301 5 0 5 5 0 92 0
uvmvnodes 80 122 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 128 253 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 97 0 3 2 0 2 2 0 8 0
uaddrrnd 24 1125 0 1094 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1125 0 1094 1 0 1 1 0 8 0
vmmpekpl 168 11743 0 11691 3 0 3 3 0 8 0
vmmpepl 168 82809 0 81021 115 14 101 111 0 357 10
vmsppl 488 1124 0 1093 7 2 5 6 0 8 0
rwobjpl 80 26011 0 24983 30 4 26 30 0 8 0
pdppl 4096 2257 0 2186 127 46 81 95 0 8 10
pvpl 32 24253 0 0 198 2 196 196 0 265 0
pmappl 256 1124 0 1093 4 1 3 3 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 1073 0 62 29 0 29 29 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff838f8ff0) 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(ffffffff83a3dc00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a3dc00) at __mp_lock+0x199 sys/kern/kern_lock.c:173
exit1(ffff800045fee7e0,0,0,1) at exit1+0x720 sys/kern/kern_exit.c:260
sys_exit(ffff800045fee7e0,ffff80003b3b1330,ffff80003b3b1280) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003b3b1330) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003b3b1330) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ad3bc8bda50, count: 7
ddb{0}> trace
x86_ipi_db(ffffffff838f8ff0) 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(ffffffff83a3dc00) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a3dc00) at __mp_lock+0x199 sys/kern/kern_lock.c:173
exit1(ffff800045fee7e0,0,0,1) at exit1+0x720 sys/kern/kern_exit.c:260
sys_exit(ffff800045fee7e0,ffff80003b3b1330,ffff80003b3b1280) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80003b3b1330) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003b3b1330) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ad3bc8bda50, count: -8
ddb{0}> machine ddbcpu 1
Stopped at sys_msgget+0xa0: movq 0x18(%r14),%r15
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 que_key_lookup sys/kern/sysv_msg.c:477 [inline]
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 sys/kern/sysv_msg.c:197
syscall(ffff80002df92880) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002df92880) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa05d8c2f40, count: 12
ddb{1}> trace
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 que_key_lookup sys/kern/sysv_msg.c:477 [inline]
sys_msgget(ffff80003bbb87e8,ffff80002df92880,ffff80002df927d0) at sys_msgget+0xa0 sys/kern/sysv_msg.c:197
syscall(ffff80002df92880) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002df92880) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xfa05d8c2f40, count: -3