login: panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806d925700+16 0x0!=0x14ed78d60004a1b4
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fefa6) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82656440,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(2,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
rtm_msg1(2,ffff800020f69080) at rtm_msg1+0x6e sys/net/rtsock.c:1534
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline]
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657
rt_ifa_del(ffff800000a0cf00,800100,ffff800000a0cf58,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:812 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:636 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 sys/netinet/in.c:752
in_ifdetach(ffff8000009d5000) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff8000009d5000) at if_detach+0x140 sys/net/if.c:1148
tun_clone_destroy(ffff8000009d5000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329
tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480
spec_close(ffff800020f69520) at spec_close+0x311 sys/kern/spec_vnops.c:555
end trace frame: 0xffff800020f69590, count: 0
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 0xfffffd806d925700+16 0x0!=0x14ed78d60004a1b4
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fefa6) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82656440,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(2,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
rtm_msg1(2,ffff800020f69080) at rtm_msg1+0x6e sys/net/rtsock.c:1534
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline]
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657
rt_ifa_del(ffff800000a0cf00,800100,ffff800000a0cf58,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:812 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:636 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 sys/netinet/in.c:752
in_ifdetach(ffff8000009d5000) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff8000009d5000) at if_detach+0x140 sys/net/if.c:1148
tun_clone_destroy(ffff8000009d5000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329
tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480
spec_close(ffff800020f69520) at spec_close+0x311 sys/kern/spec_vnops.c:555
VOP_CLOSE(fffffd806e310418,7,fffffd807f7bfb40,ffff800020e6c278) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd806d0837c8,ffff800020e6c278) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806d0837c8,ffff800020e6c278) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806d0837c8,ffff800020e6c278) at fdrop+0xc2 sys/kern/kern_descrip.c:1276
closef(fffffd806d0837c8,ffff800020e6c278) at closef+0x11c sys/kern/kern_descrip.c:1260
fdfree(ffff800020e6c278) at fdfree+0x101 sys/kern/kern_descrip.c:1192
exit1(ffff800020e6c278,0,9,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff800020e6c278,9) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff800020e6c278,9) at postsig+0x4ed sys/kern/kern_sig.c:1415
userret(ffff800020e6c278) at userret+0x199 sys/kern/kern_sig.c:1867
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffdbb40, count: -23
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020f68da0
rbx 0xffff800020f68e50
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff812e663f kprintf+0x16f
r9 0x1
r10 0x2
r11 0x752e4599009f7ccc
r12 0x3000000008
r13 0xffff800020f68db0
r14 0x100
r15 0x1
rip 0xffffffff821c8118 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020f68d90
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.0) pid=204027 stat=onproc
flags process=a<EXEC,EXITING,8ORPHAN> proc=2000<WEXIT>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020e6cc38,0xffffffff82674598
process=0xffff800020e80010 user=0xffff800020f64000, vmspace=0xfffffd807f000cf0
estcpu=0, cpticks=1, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
88035 270544 71781 0 3 0x82 thrsleep syz-execprog
88035 491682 71781 0 3 0x4000082 thrsleep syz-execprog
88035 361322 71781 0 3 0x4000082 thrsleep syz-execprog
88035 516283 71781 0 3 0x4000082 thrsleep syz-execprog
88035 511290 71781 0 3 0x4000082 thrsleep syz-execprog
88035 277306 71781 0 3 0x4000082 kqread syz-execprog
88035 193967 71781 0 3 0x4000082 wait syz-execprog
88035 480693 71781 0 3 0x4000082 thrsleep syz-execprog
88035 380813 71781 0 3 0x4000082 thrsleep syz-execprog
71781 393180 31588 0 3 0x10008a pause ksh
31588 58351 21722 0 3 0x92 select sshd
46017 143700 1 0 3 0x100083 ttyin getty
21722 119441 1 0 3 0x80 select sshd
51096 75954 18733 74 3 0x100092 bpf pflogd
18733 404704 1 0 3 0x80 netio pflogd
73156 381147 63980 73 3 0x100090 kqread syslogd
63980 28483 1 0 3 0x100082 netio syslogd
11299 184696 1 77 3 0x100090 poll dhclient
16591 496460 1 0 3 0x80 poll dhclient
6693 378090 0 0 3 0x14200 bored smr
67005 226330 0 0 3 0x14200 pgzero zerothread
93459 427959 0 0 3 0x14200 aiodoned aiodoned
98881 386143 0 0 3 0x14200 syncer update
70691 154699 0 0 3 0x14200 cleaner cleaner
11239 117291 0 0 3 0x14200 reaper reaper
80473 289651 0 0 3 0x14200 pgdaemon pagedaemon
71379 91129 0 0 3 0x14200 bored crynlk
55880 61796 0 0 3 0x14200 bored crypto
44289 398934 0 0 3 0x40014200 acpi0 acpi0
76121 411001 0 0 3 0x40014200 idle1
99148 18262 0 0 3 0x14200 bored softnet
11535 42910 0 0 3 0x14200 bored systqmp
64165 282883 0 0 3 0x14200 bored systq
61145 317027 0 0 3 0x40014200 bored softclock
68974 136375 0 0 7 0x40014200 idle0
1 400030 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9465 6396K 6396K 78643K 10560 0
pcb 13 8K 8K 78643K 13 0
rtable 83 2K 2K 78643K 163 0
ifaddr 37 9K 9K 78643K 39 0
counters 41 33K 33K 78643K 41 0
ioctlops 0 0K 4K 78643K 1468 0
mount 1 1K 1K 78643K 1 0
vnodes 1183 74K 75K 78643K 1188 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 1K 78643K 2 0
VM map 2 1K 1K 78643K 2 0
sem 2 0K 0K 78643K 2 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 2 4K 12K 78643K 18 0
proc 59 63K 83K 78643K 398 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
in_multi 22 1K 1K 78643K 22 0
ether_multi 1 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 19 95K 95K 78643K 19 0
exec 0 0K 1K 78643K 197 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 73 12K 12K 78643K 946 0
UVM aobj 2 2K 2K 78643K 2 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
NDP 7 0K 0K 78643K 7 0
temp 29 3029K 3093K 78643K 1867 0
kqueue 3 4K 4K 78643K 3 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 4 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 17 0 15 1 0 1 1 0 8 0
rtentry 112 34 0 1 1 0 1 1 0 8 0
unpcb 120 29 0 19 1 0 1 1 0 8 0
syncache 264 5 0 5 1 0 1 1 0 8 1
tcpcb 544 8 0 5 1 0 1 1 0 8 0
inpcb 280 34 0 28 1 0 1 1 0 8 0
nd6 48 3 0 0 1 0 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
pfstitem 24 11 0 0 1 0 1 1 0 8 0
pfstkey 112 11 0 0 1 0 1 1 0 8 0
pfstate 328 11 0 0 1 0 1 1 0 8 0
pfrule 1360 21 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 144 0 0 9 0 9 9 0 8 0
art_table 32 145 0 0 2 0 2 2 0 8 0
art_node 16 33 0 4 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1424 0 22 88 0 88 88 0 8 0
ffsino 272 1424 0 22 94 0 94 94 0 8 0
nchpl 144 1642 0 38 60 0 60 60 0 8 0
uvmvnodes 72 1434 0 0 27 0 27 27 0 8 0
vnodes 208 1434 0 0 76 0 76 76 0 8 0
namei 1024 4211 0 4211 1 0 1 1 0 8 1
percpumem 16 31 0 0 1 0 1 1 0 8 0
scxspl 192 3843 0 3843 2 1 1 2 0 8 1
plimitpl 152 15 0 8 1 0 1 1 0 8 0
sigapl 424 241 0 212 4 0 4 4 0 8 0
knotepl 112 47 0 38 1 0 1 1 0 8 0
kqueuepl 144 2 0 0 1 0 1 1 0 8 0
pipelkpl 48 77 0 71 1 0 1 1 0 8 0
pipepl 120 154 0 143 1 0 1 1 0 8 0
fdescpl 496 226 0 212 3 0 3 3 0 8 0
filepl 152 1116 0 1060 3 0 3 3 0 8 0
lockfpl 104 5 0 4 1 0 1 1 0 8 0
lockfspl 48 3 0 2 1 0 1 1 0 8 0
sessionpl 112 19 0 9 1 0 1 1 0 8 0
pgrppl 48 19 0 9 1 0 1 1 0 8 0
ucredpl 96 62 0 53 1 0 1 1 0 8 0
zombiepl 144 213 0 212 1 0 1 1 0 8 0
processpl 984 241 0 212 5 0 5 5 0 8 1
procpl 624 249 0 212 4 0 4 4 0 8 1
sockpl 400 80 0 62 2 0 2 2 0 8 0
mcl4k 4096 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 67 0 0 9 0 9 9 0 8 0
mtagpl 80 1 0 0 1 0 1 1 0 8 0
mbufpl 256 86 0 0 6 0 6 6 0 8 0
bufpl 280 2986 0 133 204 0 204 204 0 8 0
anonpl 16 22400 0 20753 13 1 12 12 0 124 3
amapchunkpl 152 822 0 756 5 0 5 5 0 158 2
amappl16 192 147 0 113 3 0 3 3 0 8 0
amappl15 184 4 0 1 1 0 1 1 0 8 0
amappl14 176 27 0 23 1 0 1 1 0 8 0
amappl13 168 22 0 20 1 0 1 1 0 8 0
amappl12 160 6 0 4 1 0 1 1 0 8 0
amappl11 152 52 0 37 1 0 1 1 0 8 0
amappl10 144 23 0 21 1 0 1 1 0 8 0
amappl9 136 239 0 238 1 0 1 1 0 8 0
amappl8 128 273 0 265 1 0 1 1 0 8 0
amappl7 120 113 0 103 1 0 1 1 0 8 0
amappl6 112 26 0 23 2 1 1 1 0 8 0
amappl5 104 124 0 109 1 0 1 1 0 8 0
amappl4 96 506 0 475 1 0 1 1 0 8 0
amappl3 88 105 0 100 1 0 1 1 0 8 0
amappl2 80 914 0 854 2 0 2 2 0 8 0
amappl1 72 15579 0 15160 23 5 18 18 0 8 8
amappl 80 478 0 450 1 0 1 1 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 1 0 0 1 0 1 1 0 8 0
uaddrrnd 24 226 0 212 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 226 0 212 1 0 1 1 0 8 0
vmmpekpl 168 6335 0 6307 2 0 2 2 0 8 0
vmmpepl 168 32772 0 31846 79 7 72 72 0 357 29
vmsppl 368 225 0 212 2 0 2 2 0 8 0
pdppl 4096 460 0 424 6 0 6 6 0 8 0
pvpl 32 113906 0 109888 104 0 104 104 0 265 69
pmappl 232 225 0 212 1 0 1 1 0 8 0
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 231 0 3 7 0 7 7 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffffffff824cbff0) 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(ffffffff826418e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff826418e0) 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
acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187
sched_idle(ffffffff824cbff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:182
end trace frame: 0x0, count: 7
ddb{0}> trace
x86_ipi_db(ffffffff824cbff0) 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(ffffffff826418e0) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff826418e0) 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
acpicpu_idle() at acpicpu_idle+0x331 sys/dev/acpi/acpicpu.c:1187
sched_idle(ffffffff824cbff0) at sched_idle+0x3f7 sys/kern/kern_sched.c:182
end trace frame: 0x0, count: -8
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(ffffffff821fefa6) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82656440,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(2,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
rtm_msg1(2,ffff800020f69080) at rtm_msg1+0x6e sys/net/rtsock.c:1534
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline]
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657
rt_ifa_del(ffff800000a0cf00,800100,ffff800000a0cf58,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:812 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:636 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 sys/netinet/in.c:752
in_ifdetach(ffff8000009d5000) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff8000009d5000) at if_detach+0x140 sys/net/if.c:1148
tun_clone_destroy(ffff8000009d5000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329
tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480
spec_close(ffff800020f69520) at spec_close+0x311 sys/kern/spec_vnops.c:555
end trace frame: 0xffff800020f69590, count: 0
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821fefa6) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82656440) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82656440,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_gethdr(2,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283
rtm_msg1(2,ffff800020f69080) at rtm_msg1+0x6e sys/net/rtsock.c:1534
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 rtm_miss sys/net/rtsock.c:1679 [inline]
rtm_send(fffffd806f3e4690,2,0,0) at rtm_send+0x120 sys/net/rtsock.c:1657
rt_ifa_del(ffff800000a0cf00,800100,ffff800000a0cf58,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_remove_prefix sys/netinet/in.c:812 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 in_ifscrub sys/netinet/in.c:636 [inline]
in_purgeaddr(ffff800000a0cf00) at in_purgeaddr+0xc6 sys/netinet/in.c:752
in_ifdetach(ffff8000009d5000) at in_ifdetach+0x74 sys/netinet/in.c:971
if_detach(ffff8000009d5000) at if_detach+0x140 sys/net/if.c:1148
tun_clone_destroy(ffff8000009d5000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329
tun_dev_close(5d00,7) at tun_dev_close+0x160 sys/net/if_tun.c:480
spec_close(ffff800020f69520) at spec_close+0x311 sys/kern/spec_vnops.c:555
VOP_CLOSE(fffffd806e310418,7,fffffd807f7bfb40,ffff800020e6c278) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd806d0837c8,ffff800020e6c278) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806d0837c8,ffff800020e6c278) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806d0837c8,ffff800020e6c278) at fdrop+0xc2 sys/kern/kern_descrip.c:1276
closef(fffffd806d0837c8,ffff800020e6c278) at closef+0x11c sys/kern/kern_descrip.c:1260
fdfree(ffff800020e6c278) at fdfree+0x101 sys/kern/kern_descrip.c:1192
exit1(ffff800020e6c278,0,9,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff800020e6c278,9) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff800020e6c278,9) at postsig+0x4ed sys/kern/kern_sig.c:1415
userret(ffff800020e6c278) at userret+0x199 sys/kern/kern_sig.c:1867
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffdbb40, count: -23
ddb{1}>