panic: free: size too small 52 <= 4096 / 2 (0xffff800001590000) type shm
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
360403 78869 0 0x2 0 0 syz-executor
*115102 24611 0 0x14000 0x200 1K reaper
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8302015e) at panic+0x1e5 sys/kern/subr_prf.c:198
free(ffff800001590000,1d,34) at free+0x6f5 sys/kern/kern_malloc.c:418
shmexit(fffffd806b859008) at shmexit+0x154 sys/kern/sysv_shm.c:529
uvmspace_free(fffffd806b859008) at uvmspace_free+0x7e sys/uvm/uvm_map.c:3417
reaper(ffff800029fd8f38) at reaper+0x246 sys/kern/kern_exit.c:480
end trace frame: 0x0, count: 9
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: free: size too small 52 <= 4096 / 2 (0xffff800001590000) type shm
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8302015e) at panic+0x1e5 sys/kern/subr_prf.c:198
free(ffff800001590000,1d,34) at free+0x6f5 sys/kern/kern_malloc.c:418
shmexit(fffffd806b859008) at shmexit+0x154 sys/kern/sysv_shm.c:529
uvmspace_free(fffffd806b859008) at uvmspace_free+0x7e sys/uvm/uvm_map.c:3417
reaper(ffff800029fd8f38) at reaper+0x246 sys/kern/kern_exit.c:480
end trace frame: 0x0, count: -6
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800029fe55b0
rbx 0xffff800029b7cd87
rdx 0
rcx 0xffff800029fd8f38
rax 0xffff800029b7bff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xfe57748f89f82497
r11 0xb11b9eb5aed0036b
r12 0xffff800029b7cb88
r13 0
r14 0
r15 0x1
rip 0xffffffff81ae19d5 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff800029fe55a0
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{1}> show proc
PROC (reaper) tid=115102 pid=24611 tcnt=1 stat=onproc
flags process=14000<NOZOMBIE,SYSTEM> proc=200<SYSTEM>
runpri=85, usrpri=85, slppri=4, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff800029fd96d0,0xffff800029fd8a38
process=0xffff800029febaf0 user=0xffff800029fe0000, vmspace=0xffffffff835c0650
estcpu=35, cpticks=8, pctcpu=21.30, user=0, sys=13611, intr=141
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
75264 245214 84147 0 3 0x2 biowait syz-executor
43412 43300 84147 0 3 0x2 biowait syz-executor
19899 271392 84147 0 3 0x2 biowait syz-executor
20753 29046 84147 0 3 0x2 biowait syz-executor
78869 360403 84147 0 7 0x2 syz-executor
10349 73960 84147 0 3 0x82 wait syz-executor
76472 302495 84147 0 3 0x82 wait syz-executor
3712 223614 1 0 3 0x100083 ttyin getty
33982 329874 0 0 3 0x14280 nfsidl nfsio
58788 319697 0 0 3 0x14280 nfsidl nfsio
94585 259149 0 0 3 0x14280 nfsidl nfsio
75890 177207 0 0 3 0x14280 nfsidl nfsio
41884 464919 0 0 3 0x14280 nfsidl nfsio
4817 216908 0 0 3 0x14280 nfsidl nfsio
27383 17112 0 0 3 0x14280 nfsidl nfsio
58866 79471 0 0 3 0x14280 nfsidl nfsio
93008 52484 0 0 3 0x14280 nfsidl nfsio
57995 26306 0 0 3 0x14280 nfsidl nfsio
24932 181093 0 0 3 0x14280 nfsidl nfsio
42231 164022 0 0 3 0x14280 nfsidl nfsio
61038 88338 0 0 3 0x14280 nfsidl nfsio
26131 276990 0 0 3 0x14280 nfsidl nfsio
47528 208726 0 0 3 0x14280 nfsidl nfsio
36741 22265 0 0 3 0x14280 nfsidl nfsio
46086 60841 0 0 3 0x14280 nfsidl nfsio
59593 487373 0 0 3 0x14280 nfsidl nfsio
30963 23988 0 0 3 0x14280 nfsidl nfsio
82268 268895 0 0 3 0x14280 nfsidl nfsio
58671 162049 0 0 3 0x14200 bored sosplice
84147 146679 59000 0 3 0x82 wait syz-executor
59000 226191 96347 0 3 0x10008a sigsusp ksh
96347 82031 81111 0 3 0x98 kqread sshd-session
81111 229234 59221 0 3 0x92 kqread sshd-session
59221 266687 1 0 3 0x88 kqread sshd
20029 47792 54333 74 3 0x1100092 bpf pflogd
54333 187574 1 0 3 0x80 sbwait pflogd
53576 66245 88192 73 3 0x1100010 biowait syslogd
88192 331396 1 0 3 0x100082 sbwait syslogd
40223 235565 1 0 3 0x100080 kqread resolvd
38678 453467 48306 77 3 0x100092 kqread dhcpleased
26859 326121 48306 77 3 0x100092 kqread dhcpleased
48306 259226 1 0 3 0x80 kqread dhcpleased
91630 167434 0 0 3 0x14200 bored smr
20634 294434 0 0 3 0x14200 pgzero zerothread
24901 376643 0 0 3 0x14200 aiodoned aiodoned
66835 18309 0 0 3 0x14200 syncer update
83255 260183 0 0 3 0x14200 cleaner cleaner
*24611 115102 0 0 7 0x14200 reaper
11494 502485 0 0 3 0x14200 pgdaemon pagedaemon
12026 520068 0 0 3 0x14200 bored viomb
68863 169643 0 0 3 0x40014200 acpi0 acpi0
35888 430793 0 0 3 0x40014200 idle1
97930 515614 0 0 3 0x14200 bored softnet3
13742 281829 0 0 3 0x14200 bored softnet2
43620 82936 0 0 3 0x14200 bored softnet1
12287 306930 0 0 3 0x14200 bored softnet0
42028 437656 0 0 3 0x14200 bored systqmp
52210 167350 0 0 3 0x14200 bored systq
94004 13193 0 0 3 0x14200 tmoslp softclockmp
22955 275177 0 0 3 0x40014200 tmoslp softclock
26396 276749 0 0 3 0x40014200 idle0
1 103500 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/kern_malloc.c:91 r = 0 (0xffffffff834ef458)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 mtx_enter_try+0x178
#2 mtx_enter+0x60 sys/kern/kern_lock.c:239
#3 free+0x9f sys/kern/kern_malloc.c:385
#4 shmexit+0x154 sys/kern/sysv_shm.c:529
#5 uvmspace_free+0x7e sys/uvm/uvm_map.c:3417
#6 reaper+0x246 sys/kern/kern_exit.c:480
#7 proc_trampoline+0x10
Process 75264 (syz-executor) thread 0xffff800035db3988 (245214)
exclusive rrwlock inode r = 0 (0xfffffd806434bc48)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079915c58)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 43412 (syz-executor) thread 0xffff800035db2ce0 (43300)
exclusive rrwlock inode r = 0 (0xfffffd806434b5e8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8079915f88)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 19899 (syz-executor) thread 0xffff80002a115c08 (271392)
exclusive rrwlock inode r = 0 (0xfffffd806434b098)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099
#10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8063ae5708)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 20753 (syz-executor) thread 0xffff8000ffffc520 (29046)
exclusive rrwlock inode r = 0 (0xfffffd806434be68)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x192 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806434b2b8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 cache_lookup+0x36e sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x218 sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#10 namei+0x7aa sys/kern/vfs_lookup.c:250
#11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
Process 53576 (syslogd) thread 0xffff8000ffffd450 (66245)
exclusive rrwlock inode r = 0 (0xfffffd806e1575f0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926
#6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#7 Xsyscall+0x128
Process 24611 (reaper) thread 0xffff800029fd8f38 (115102)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83559e08)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 uvmspace_free+0x6d sys/uvm/uvm_map.c:3416
#2 reaper+0x246 sys/kern/kern_exit.c:480
#3 proc_trampoline+0x10
exclusive mutex /syzkaller/managers/multicore/kernel/sys/kern/kern_malloc.c:91 r = 0 (0xffffffff834ef458)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 mtx_enter_try+0x178
#2 mtx_enter+0x60 sys/kern/kern_lock.c:239
#3 free+0x9f sys/kern/kern_malloc.c:385
#4 shmexit+0x154 sys/kern/sysv_shm.c:529
#5 uvmspace_free+0x7e sys/uvm/uvm_map.c:3417
#6 reaper+0x246 sys/kern/kern_exit.c:480
#7 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10227 14189K 14460K 166960K 13447 0
pcb 17 14K 16K 166960K 220 0
rtable 232 8K 8K 166960K 2022 0
pf 34 17K 19K 166960K 228 0
ifaddr 42 8K 8K 166960K 295 0
ifgroup 55 2K 2K 166960K 342 0
sysctl 3 1K 1K 166960K 5 0
counters 64 36K 36K 166960K 238 0
ioctlops 0 0K 8K 166960K 1672 0
iov 0 0K 24K 166960K 80 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1440 90K 91K 166960K 2948 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 20K 20K 166960K 23 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 129 0
dirhash 12 2K 2K 166960K 36 0
ACPI 1690 195K 286K 166960K 12418 0
file desc 10 33K 89K 166960K 2060 0
sigio 0 0K 0K 166960K 26 0
proc 72 91K 128K 166960K 2083 0
subproc 104 6K 7K 166960K 767 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 434 0
in_multi 96 7K 7K 166960K 695 0
ether_multi 1 0K 0K 166960K 6 0
mrt 1 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 247 1102K 1102K 166960K 247 0
exec 0 0K 1K 166960K 1332 0
pfkey data 0 0K 0K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 206 72K 93K 166960K 18265 0
UVM aobj 99 3K 3K 166960K 103 0
pinsyscall 35 70K 102K 166960K 4487 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 51 0
NDP 12 0K 2K 166960K 220 0
temp 75 6824K 6900K 166960K 98247 0
kqueue 13 20K 28K 166960K 214 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 24 0 0 1 0 1 1 0 8 0
rtpcb 120 329 0 326 2 1 1 2 0 8 0
rtentry 112 716 0 610 5 1 4 4 0 8 0
unpcb 144 880 0 863 10 9 1 4 0 8 0
syncache 336 10 0 10 4 4 0 1 0 8 0
tcpqe 32 6 0 6 2 2 0 1 0 8 0
tcpcb 808 367 0 363 10 9 1 4 0 8 0
arp 120 127 0 107 1 0 1 1 0 8 0
ipq 40 1 0 1 1 1 0 1 0 8 0
ipqe 40 3 0 3 1 1 0 1 0 8 0
inpcb 336 1804 0 1793 28 25 3 13 0 8 0
nd6 136 194 0 166 1 0 1 1 0 8 0
pkpcb 40 7 0 7 3 3 0 1 0 8 0
kcovpl 48 59 0 51 1 0 1 1 0 8 0
ppxss 1168 33 0 33 3 3 0 1 0 8 0
pffrag 232 7 0 5 2 1 1 1 0 482 0
pffrnode 88 7 0 5 2 1 1 1 0 8 0
pffrent 40 10 0 8 2 1 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
pfstitem 24 184 0 157 1 0 1 1 0 8 0
pfstkey 128 184 0 157 2 0 2 2 0 8 0
pfstate 376 184 0 157 6 1 5 5 0 8 0
pfrule 1344 28 0 21 2 1 1 2 0 8 0
art_heap8 4096 3 0 0 3 0 3 3 0 8 0
art_heap4 256 2847 0 2410 37 9 28 31 0 8 0
art_table 32 2850 0 2410 4 0 4 4 0 8 0
art_node 16 712 0 619 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 7 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 125 0 115 1 0 1 1 0 8 0
shmpl 112 100 0 4 3 0 3 3 0 8 0
dirhash 1024 33 0 16 3 0 3 3 0 8 0
dino2pl 256 3781 0 2173 102 0 102 102 0 8 0
ffsino 272 3781 0 2173 109 0 109 109 0 8 0
nchpl 144 5763 0 5097 65 39 26 65 0 8 0
uvmvnodes 80 5100 0 0 105 0 105 105 0 8 0
vnodes 216 5100 0 0 284 0 284 284 0 8 0
namei 1024 25105 0 25104 6 5 1 2 0 8 0
percpumem 16 133 0 87 1 0 1 1 0 8 0
kstatmem 264 198 0 174 2 0 2 2 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 216 41273 0 41268 13 12 1 8 1 8 0
plimitpl 152 339 0 322 1 0 1 1 0 8 0
sigapl 424 2285 0 2219 10 1 9 9 0 8 0
futexpl 64 18134 0 18134 5 4 1 1 0 8 1
knotepl 120 692 0 0 17 0 17 17 0 8 0
kqueuepl 216 353 0 344 1 0 1 1 0 8 0
pipepl 320 355 0 328 3 0 3 3 0 8 0
fdescpl 496 2245 0 2221 7 2 5 5 0 8 1
filepl 152 12335 0 12095 38 27 11 21 0 8 1
lockfpl 104 565 0 563 2 1 1 2 0 8 0
lockfspl 48 245 0 243 1 0 1 1 0 8 0
sessionpl 144 80 0 71 1 0 1 1 0 8 0
pgrppl 48 150 0 133 1 0 1 1 0 8 0
ucredpl 104 2133 0 2119 1 0 1 1 0 8 0
zombiepl 144 2689 0 2685 2 1 1 1 0 8 0
processpl 1160 2285 0 2219 7 1 6 6 0 8 0
procpl 648 4411 0 4334 8 0 8 8 0 8 0
srpgc 96 10 0 10 4 4 0 1 0 8 0
sosppl 168 15 0 15 5 5 0 1 0 8 0
sockpl 664 3034 0 3004 34 29 5 16 0 8 1
mcl64k 65536 4 0 0 1 0 1 1 0 8 0
mcl16k 16384 5 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 7 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k 2048 255 0 0 29 1 28 29 0 8 0
mtagpl 96 14 0 0 1 0 1 1 0 8 0
mbufpl 256 461 0 0 25 0 25 25 0 8 0
bufpl 280 11461 0 5310 456 4 452 456 0 8 0
anonpl 24 374642 0 371395 130 78 52 80 0 185 8
amapchunkpl 152 59168 0 58765 79 46 33 42 0 158 7
amappl16 200 7412 0 7391 46 44 2 27 0 8 0
amappl15 192 10 0 10 1 1 0 1 0 8 0
amappl14 184 233 0 221 1 0 1 1 0 8 0
amappl13 176 6 0 6 1 1 0 1 0 8 0
amappl12 168 3710 0 3683 3 1 2 2 0 8 0
amappl11 160 87 0 73 1 0 1 1 0 8 0
amappl10 152 22 0 22 1 1 0 1 0 8 0
amappl9 144 171 0 170 1 0 1 1 0 8 0
amappl8 136 21 0 19 1 0 1 1 0 8 0
amappl7 128 217 0 204 1 0 1 1 0 8 0
amappl6 120 700 0 699 1 0 1 1 0 8 0
amappl5 112 360 0 348 1 0 1 1 0 8 0
amappl4 104 488 0 469 1 0 1 1 0 8 0
amappl3 96 11544 0 11450 4 0 4 4 0 8 0
amappl2 88 1452 0 1383 2 0 2 2 0 8 0
amappl1 80 17349 0 16796 16 2 14 14 0 8 0
amappl 88 17364 0 17220 5 0 5 5 0 92 0
dma16384 16384 2 0 2 2 2 0 1 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 2 0 1 0 8 0
dma64 64 7 0 7 2 2 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 20 0 19 1 0 1 1 0 8 0
aobjpl 72 102 0 4 2 0 2 2 0 8 0
uaddrrnd 24 2245 0 2218 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2245 0 2218 1 0 1 1 0 8 0
vmmpekpl 168 19075 0 19012 4 0 4 4 0 8 0
vmmpepl 168 143870 0 142216 123 38 85 104 0 357 0
vmsppl 440 2244 0 2218 6 2 4 5 0 8 0
rwobjpl 56 47646 0 41547 88 1 87 87 0 8 0
pdppl 4096 4497 0 4436 185 114 71 83 0 8 10
pvpl 32 44425 0 0 358 0 358 358 0 265 0
pmappl 248 2244 0 2218 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 553 0 174 12 0 12 12 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83465ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
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(ffffffff83559c00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83559c00) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a1278f0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
__mp_lock(ffffffff83559c00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83559c00) at __mp_lock+0x192 sys/kern/kern_lock.c:144
syscall(ffff80002a127ac0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a127ac0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b241630a3c0, count: 6
ddb{0}> trace
x86_ipi_db(ffffffff83465ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
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(ffffffff83559c00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83559c00) at __mp_lock+0x192 sys/kern/kern_lock.c:144
intr_handler(ffff80002a1278f0,ffff800000079f80) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
__mp_lock(ffffffff83559c00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline]
__mp_lock(ffffffff83559c00) at __mp_lock+0x192 sys/kern/kern_lock.c:144
syscall(ffff80002a127ac0) at syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a127ac0) at syscall+0xad6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b241630a3c0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x25: addq $0x8,%rsp
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8302015e) at panic+0x1e5 sys/kern/subr_prf.c:198
free(ffff800001590000,1d,34) at free+0x6f5 sys/kern/kern_malloc.c:418
shmexit(fffffd806b859008) at shmexit+0x154 sys/kern/sysv_shm.c:529
uvmspace_free(fffffd806b859008) at uvmspace_free+0x7e sys/uvm/uvm_map.c:3417
reaper(ffff800029fd8f38) at reaper+0x246 sys/kern/kern_exit.c:480
end trace frame: 0x0, count: 9
ddb{1}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8302015e) at panic+0x1e5 sys/kern/subr_prf.c:198
free(ffff800001590000,1d,34) at free+0x6f5 sys/kern/kern_malloc.c:418
shmexit(fffffd806b859008) at shmexit+0x154 sys/kern/sysv_shm.c:529
uvmspace_free(fffffd806b859008) at uvmspace_free+0x7e sys/uvm/uvm_map.c:3417
reaper(ffff800029fd8f38) at reaper+0x246 sys/kern/kern_exit.c:480
end trace frame: 0x0, count: -6