panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd8069ff4b00+16 0x0!=0x8a2b0981fbcaab95
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*331823 91522 74 0x100012 0 1K pflogd
473253 41715 73 0x100010 0 0 syslogd
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542
dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517
sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437
syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffabe0, count: 4
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
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd8069ff4b00+16 0x0!=0x8a2b0981fbcaab95
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542
dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517
sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437
syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffabe0, count: -11
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020e5fb50
rbx 0xffff800020e5fc00
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffff800020e5fb10
r9 0xffffffff8108ddff kprintf+0x16f
r10 0x1
r11 0x8344499a5579cf9c
r12 0x3000000008
r13 0xffff800020e5fb60
r14 0x100
r15 0x1
rip 0xffffffff822b91e8 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020e5fb40
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (pflogd) pid=331823 stat=onproc
flags process=100012<EXEC,SUGID,PLEDGE,8ORPHAN> proc=0
pri=50, usrpri=51, nice=20
forw=0xffffffffffffffff, list=0xffff8000fffff158,0xffff8000fffff658
process=0xffff8000ffffcfc0 user=0xffff800020e5b000, vmspace=0xfffffd806e9002e8
estcpu=1, cpticks=2, pctcpu=0.0
user=0, sys=2, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
26853 474838 17765 0 2 0 syz-executor.1
26853 117937 17765 0 2 0x4000000 syz-executor.1
26853 198817 17765 0 3 0x4000080 fsleep syz-executor.1
26853 368343 17765 0 2 0x4000000 syz-executor.1
41134 137581 45143 0 2 0 syz-executor.0
41134 99137 45143 0 3 0x4000080 fsleep syz-executor.0
41134 76585 45143 0 3 0x4000080 bell syz-executor.0
45143 261541 55031 0 3 0x82 nanosleep syz-executor.0
18835 366146 0 0 3 0x14200 bored sosplice
78584 318761 0 0 3 0x14280 nfsidl nfsio
61010 329740 0 0 3 0x14280 nfsidl nfsio
89171 286615 0 0 3 0x14280 nfsidl nfsio
64959 378146 0 0 3 0x14280 nfsidl nfsio
92443 275418 0 0 3 0x14280 nfsidl nfsio
3355 35049 0 0 3 0x14280 nfsidl nfsio
10242 485512 0 0 3 0x14280 nfsidl nfsio
84329 485761 0 0 3 0x14280 nfsidl nfsio
13414 476008 0 0 3 0x14280 nfsidl nfsio
92605 492457 0 0 3 0x14280 nfsidl nfsio
71306 218295 0 0 3 0x14280 nfsidl nfsio
6237 423077 0 0 3 0x14280 nfsidl nfsio
97545 384235 0 0 3 0x14280 nfsidl nfsio
1254 325423 0 0 3 0x14280 nfsidl nfsio
37569 11991 0 0 3 0x14280 nfsidl nfsio
84244 357917 0 0 3 0x14280 nfsidl nfsio
28741 458794 0 0 3 0x14280 nfsidl nfsio
31344 164853 0 0 3 0x14280 nfsidl nfsio
52785 14493 0 0 3 0x14280 nfsidl nfsio
93726 410630 0 0 3 0x14280 nfsidl nfsio
17765 442499 55031 0 3 0x82 nanosleep syz-executor.1
55031 356590 94030 0 3 0x82 kqread syz-fuzzer
55031 337971 94030 0 3 0x4000082 thrsleep syz-fuzzer
55031 253791 94030 0 3 0x4000082 thrsleep syz-fuzzer
55031 344718 94030 0 3 0x4000082 thrsleep syz-fuzzer
55031 503863 94030 0 3 0x4000082 thrsleep syz-fuzzer
55031 342803 94030 0 3 0x4000082 thrsleep syz-fuzzer
55031 35685 94030 0 3 0x4000082 thrsleep syz-fuzzer
55031 370381 94030 0 3 0x4000082 thrsleep syz-fuzzer
94030 160151 34036 0 3 0x10008a pause ksh
34036 257027 3769 0 3 0x92 select sshd
96620 239781 1 0 3 0x100083 ttyin getty
3769 301514 1 0 3 0x80 select sshd
*91522 331823 38055 74 7 0x100012 pflogd
38055 485618 1 0 3 0x80 netio pflogd
41715 473253 82229 73 7 0x100010 syslogd
82229 302 1 0 3 0x100082 netio syslogd
26554 337470 1 77 3 0x100090 poll dhclient
66878 180095 1 0 3 0x80 poll dhclient
62174 88689 0 0 3 0x14200 bored smr
36236 11609 0 0 2 0x14200 zerothread
38741 393326 0 0 3 0x14200 aiodoned aiodoned
87186 399487 0 0 3 0x14200 syncer update
76378 204636 0 0 3 0x14200 cleaner cleaner
81300 15036 0 0 3 0x14200 reaper reaper
15405 405757 0 0 3 0x14200 pgdaemon pagedaemon
62183 385761 0 0 3 0x14200 bored crynlk
38115 438950 0 0 3 0x14200 bored crypto
42448 50261 0 0 3 0x40014200 acpi0 acpi0
11720 375578 0 0 3 0x40014200 idle1
59763 410696 0 0 3 0x14200 bored softnet
75528 244177 0 0 3 0x14200 bored systqmp
7930 479306 0 0 3 0x14200 bored systq
60306 327757 0 0 3 0x40014200 bored softclock
44099 375688 0 0 3 0x40014200 idle0
1 287268 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 91522 (pflogd) thread 0xffff8000ffffeee0 (331823)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82933348)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline]
#1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570
#2 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9520 6441K 7980K 78643K 27445 0
pcb 13 8K 8K 78643K 111 0
rtable 103 3K 5K 78643K 440 0
ifaddr 79 16K 16K 78643K 155 0
sysctl 2 0K 0K 78643K 2 0
counters 43 33K 34K 78643K 57 0
ioctlops 0 0K 4K 78643K 3908 0
iov 0 0K 12K 78643K 122 0
mount 1 1K 1K 78643K 1 0
vnodes 1240 78K 78K 78643K 4362 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 5K 78643K 34 0
VM map 2 1K 1K 78643K 2 0
sem 10 1K 1K 78643K 14 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 6 17K 25K 78643K 7037 0
sigio 0 0K 0K 78643K 57 0
proc 61 63K 95K 78643K 650 0
subproc 32 2K 2K 78643K 68 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 57 0
in_multi 64 3K 3K 78643K 201 0
ether_multi 1 0K 0K 78643K 17 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 49 228K 228K 78643K 49 0
exec 0 0K 1K 78643K 310 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 7 26K 26K 78643K 7 0
UVM amap 214 46K 61K 78643K 19156 0
UVM aobj 82 8K 8K 78643K 134 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 645 0
NDP 12 0K 0K 78643K 42 0
temp 133 3874K 3940K 78643K 26610 0
kqueue 3 4K 12K 78643K 31 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
arp 64 12 0 6 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 88 72 0 70 1 0 1 1 0 8 0
rtentry 112 106 0 65 2 0 2 2 0 8 0
unpcb 120 1720 0 1708 2 1 1 2 0 8 0
syncache 272 5 0 5 2 2 0 1 0 8 0
tcpqe 32 161 0 161 1 1 0 1 0 8 0
tcpcb 592 1290 0 1282 12 10 2 5 0 8 0
inpcb 296 4262 0 4255 9 7 2 2 0 8 1
nd6 48 33 0 29 1 0 1 1 0 8 0
pkpcb 40 2 0 2 1 1 0 1 0 8 0
pffrag 232 7 0 6 2 1 1 1 0 482 0
pffrnode 88 7 0 6 2 1 1 1 0 8 0
pffrent 40 102 0 101 3 2 1 1 0 8 0
pfosfp 40 846 0 423 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 4 0 4 1 1 0 1 0 8 0
pfstitem 24 26 0 24 1 0 1 1 0 8 0
pfstkey 112 26 0 24 1 0 1 1 0 8 0
pfstate 328 26 0 24 2 1 1 2 0 8 0
pfsrctr 152 24 0 24 1 1 0 1 0 8 0
pfrule 1360 26 0 25 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 406 0 231 16 5 11 14 0 8 0
art_table 32 407 0 231 2 0 2 2 0 8 0
art_node 16 105 0 67 1 0 1 1 0 8 0
sysvmsgpl 40 30 0 9 1 0 1 1 0 8 0
semupl 112 2 0 2 1 1 0 1 0 8 0
semapl 112 10 0 2 1 0 1 1 0 8 0
shmpl 112 131 0 52 3 0 3 3 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 8891 0 7491 89 0 89 89 0 8 0
ffsino 272 8891 0 7491 94 0 94 94 0 8 0
nchpl 144 17925 0 16328 60 0 60 60 0 8 0
uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0
vnodes 208 5926 0 0 312 0 312 312 0 8 0
namei 1024 56882 0 56882 4 3 1 1 0 8 1
percpumem 16 39 0 7 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 10 0 8 2 1 1 1 0 8 0
pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0
scsiplug 72 1 0 1 1 1 0 1 0 8 0
scxspl 200 53959 0 53959 13 12 1 7 0 8 1
plimitpl 152 91 0 83 1 0 1 1 0 8 0
sigapl 424 7269 0 7216 8 2 6 7 0 8 0
futexpl 56 60422 0 60420 4 3 1 1 0 8 0
knotepl 112 128 0 108 1 0 1 1 0 8 0
kqueuepl 152 137 0 134 1 0 1 1 0 8 0
pipepl 304 451 0 437 9 7 2 2 0 8 0
fdescpl 496 7231 0 7214 3 0 3 3 0 8 0
filepl 152 35091 0 34976 7 2 5 6 0 8 0
lockfpl 104 590 0 589 1 0 1 1 0 8 0
lockfspl 48 205 0 204 1 0 1 1 0 8 0
sessionpl 120 20 0 9 1 0 1 1 0 8 0
pgrppl 48 36 0 25 1 0 1 1 0 8 0
ucredpl 96 1137 0 1127 1 0 1 1 0 8 0
zombiepl 144 7216 0 7216 2 1 1 1 0 8 1
processpl 1008 7269 0 7216 7 0 7 7 0 8 0
procpl 632 18204 0 18139 6 0 6 6 0 8 0
sosppl 144 6 0 6 2 2 0 1 0 8 0
sockpl 400 6059 0 6038 10 7 3 6 0 8 0
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 5 0 0 1 0 1 1 0 8 0
mcl12k 12288 25 0 0 2 0 2 2 0 8 0
mcl9k 9216 19 0 0 2 0 2 2 0 8 0
mcl8k 8192 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 17 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 332 0 0 41 1 40 41 0 8 0
mtagpl 96 81 0 0 2 0 2 2 0 8 0
mbufpl 256 580 0 0 28 0 28 28 0 8 0
bufpl 280 11338 0 5101 446 0 446 446 0 8 0
anonpl 16 501775 0 484069 123 36 87 88 0 124 13
amapchunkpl 152 31477 0 31182 45 32 13 25 0 158 0
amappl16 192 28180 0 27332 79 28 51 55 0 8 8
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 4048 0 4042 1 0 1 1 0 8 0
amappl13 168 1082 0 1079 1 0 1 1 0 8 0
amappl12 160 1067 0 1060 1 0 1 1 0 8 0
amappl11 152 599 0 582 1 0 1 1 0 8 0
amappl10 144 19 0 17 1 0 1 1 0 8 0
amappl9 136 378 0 376 1 0 1 1 0 8 0
amappl8 128 505 0 435 3 0 3 3 0 8 0
amappl7 120 136 0 124 1 0 1 1 0 8 0
amappl6 112 568 0 559 1 0 1 1 0 8 0
amappl5 104 4724 0 4708 1 0 1 1 0 8 0
amappl4 96 2101 0 2068 1 0 1 1 0 8 0
amappl3 88 4274 0 4264 1 0 1 1 0 8 0
amappl2 80 48741 0 48664 2 0 2 2 0 8 0
amappl1 72 182686 0 182191 23 13 10 18 0 8 0
amappl 80 18517 0 18428 2 0 2 2 0 84 0
dma4096 4096 1 0 1 1 1 0 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 64 133 0 52 2 0 2 2 0 8 0
uaddrrnd 24 7241 0 7222 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 7241 0 7222 1 0 1 1 0 8 0
vmmpekpl 168 35112 0 35064 3 0 3 3 0 8 0
vmmpepl 168 852186 0 849944 204 89 115 127 0 357 17
vmsppl 368 7240 0 7222 2 0 2 2 0 8 0
pdppl 4096 14489 0 14446 8 2 6 6 0 8 0
pvpl 32 1709134 0 1687950 303 99 204 207 0 265 31
pmappl 232 7240 0 7222 3 1 2 2 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 312 0 23 9 0 9 9 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff82785ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82933140) at __mp_lock+0x127 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89
Xsoftclock() at Xsoftclock+0x1f
__mp_lock(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82933140) at __mp_lock+0x127 sys/kern/kern_lock.c:147
solock(fffffd806eaf17d8) at solock+0x66 sys/kern/uipc_socket2.c:292
soreceive(fffffd806eaf17d8,ffff800020e526e0,ffff800020e526a8,0,0,ffff800020e527d4) at soreceive+0xb3a sys/kern/uipc_socket.c:956
recvit(ffff8000ffffe288,8,ffff800020e527a8,7f7ffffc3784,ffff800020e52890) at recvit+0x32b sys/kern/uipc_syscalls.c:817
sys_recvfrom(ffff8000ffffe288,ffff800020e52840,ffff800020e52890) at sys_recvfrom+0xd0 sys/kern/uipc_syscalls.c:717
syscall(ffff800020e52910) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e52910) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc3700, count: 2
ddb{0}> trace
x86_ipi_db(ffffffff82785ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352
x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
__mp_lock(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82933140) at __mp_lock+0x127 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89
Xsoftclock() at Xsoftclock+0x1f
__mp_lock(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82933140) at __mp_lock+0x127 sys/kern/kern_lock.c:147
solock(fffffd806eaf17d8) at solock+0x66 sys/kern/uipc_socket2.c:292
soreceive(fffffd806eaf17d8,ffff800020e526e0,ffff800020e526a8,0,0,ffff800020e527d4) at soreceive+0xb3a sys/kern/uipc_socket.c:956
recvit(ffff8000ffffe288,8,ffff800020e527a8,7f7ffffc3784,ffff800020e52890) at recvit+0x32b sys/kern/uipc_syscalls.c:817
sys_recvfrom(ffff8000ffffe288,ffff800020e52840,ffff800020e52890) at sys_recvfrom+0xd0 sys/kern/uipc_syscalls.c:717
syscall(ffff800020e52910) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e52910) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffc3700, count: -13
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x18: addq $0x8,%rsp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542
dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517
sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437
syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffabe0, count: 4
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587
sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542
dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517
sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437
syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffabe0, count: -11