panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd806f2e7300+16 0x0!=0xa8a6ad40a76f4706
Stopped at db_enter+0x18: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
457206 58286 0 0x14000 0x200 0 systqmp
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821f8577) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82655688,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250
sbappendaddr(fffffd806f6db4b0,fffffd806f6db538,ffffffff82311bb8,fffffd806d7e7100,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804
rtm_sendup(fffffd806f6db4b0,fffffd806d7e7100,0) at rtm_sendup+0xef sys/net/rtsock.c:594
route_input(fffffd806d7e7100,0,2) at route_input+0x489 sys/net/rtsock.c:572
rtm_send(fffffd806f4e8850,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659
rt_ifa_del(ffff800000a0c100,400004,ffff800000a0c168,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0c100) at in_purgeaddr+0x114 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:1149
tun_clone_destroy(ffff8000009d5000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329
end trace frame: 0xffff800020f64fa0, 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 0xfffffd806f2e7300+16 0x0!=0xa8a6ad40a76f4706
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821f8577) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82655688,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250
sbappendaddr(fffffd806f6db4b0,fffffd806f6db538,ffffffff82311bb8,fffffd806d7e7100,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804
rtm_sendup(fffffd806f6db4b0,fffffd806d7e7100,0) at rtm_sendup+0xef sys/net/rtsock.c:594
route_input(fffffd806d7e7100,0,2) at route_input+0x489 sys/net/rtsock.c:572
rtm_send(fffffd806f4e8850,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659
rt_ifa_del(ffff800000a0c100,400004,ffff800000a0c168,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0c100) at in_purgeaddr+0x114 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:1149
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(ffff800020f65020) at spec_close+0x311 sys/kern/spec_vnops.c:555
VOP_CLOSE(fffffd806e741688,7,fffffd807f7bf900,ffff800020e6c008) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd806d0ca8f8,ffff800020e6c008) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806d0ca8f8,ffff800020e6c008) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806d0ca8f8,ffff800020e6c008) at fdrop+0xc2 sys/kern/kern_descrip.c:1276
closef(fffffd806d0ca8f8,ffff800020e6c008) at closef+0x11c sys/kern/kern_descrip.c:1260
fdfree(ffff800020e6c008) at fdfree+0x101 sys/kern/kern_descrip.c:1192
exit1(ffff800020e6c008,0,9,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff800020e6c008,9) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff800020e6c008,9) at postsig+0x4ed sys/kern/kern_sig.c:1415
userret(ffff800020e6c008) at userret+0x199 sys/kern/kern_sig.c:1867
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffc20a0, count: -25
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800020f64770
rbx 0xffff800020f64820
rdx 0x8b
rcx 0x2
rax 0x1
r8 0xffffffff813f10ef kprintf+0x16f
r9 0x1
r10 0xb4b70ef486653522
r11 0x6cb45d5160bdedf4
r12 0x3000000008
r13 0xffff800020f64780
r14 0x100
r15 0x1
rip 0xffffffff81d6d978 db_enter+0x18
cs 0x8
rflags 0x246
rsp 0xffff800020f64760
ss 0x10
db_enter+0x18: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.0) pid=487123 stat=onproc
flags process=a<EXEC,EXITING,8ORPHAN> proc=2000<WEXIT>
pri=32, usrpri=50, nice=20
forw=0xffffffffffffffff, list=0xffff800020e6d868,0xffffffff8266d478
process=0xffff800020e80b98 user=0xffff800020f60000, vmspace=0xfffffd807f000b80
estcpu=36, cpticks=2, pctcpu=0.0
user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
46723 174841 70943 0 3 0x82 wait syz-execprog
46723 303483 70943 0 3 0x4000082 thrsleep syz-execprog
46723 210975 70943 0 3 0x4000082 thrsleep syz-execprog
46723 19707 70943 0 3 0x4000082 thrsleep syz-execprog
46723 250608 70943 0 3 0x4000082 kqread syz-execprog
46723 174532 70943 0 3 0x4000082 thrsleep syz-execprog
46723 398790 70943 0 3 0x4000082 thrsleep syz-execprog
46723 98399 70943 0 3 0x4000082 thrsleep syz-execprog
46723 445957 70943 0 3 0x4000082 thrsleep syz-execprog
70943 18172 40423 0 3 0x10008a pause ksh
40423 418648 17174 0 3 0x92 select sshd
61709 361933 1 0 3 0x100083 ttyin getty
17174 205143 1 0 3 0x80 select sshd
51591 60370 44820 74 3 0x100092 bpf pflogd
44820 147663 1 0 3 0x80 netio pflogd
95478 472467 17209 73 3 0x100090 kqread syslogd
17209 191317 1 0 3 0x100082 netio syslogd
29521 331142 1 77 3 0x100090 poll dhclient
62265 523595 1 0 3 0x80 poll dhclient
80487 462204 0 0 3 0x14200 bored smr
98778 63617 0 0 3 0x14200 pgzero zerothread
42211 487074 0 0 3 0x14200 aiodoned aiodoned
88171 111489 0 0 3 0x14200 syncer update
8058 519049 0 0 3 0x14200 cleaner cleaner
41385 454892 0 0 3 0x14200 reaper reaper
52250 34919 0 0 3 0x14200 pgdaemon pagedaemon
86300 45452 0 0 3 0x14200 bored crynlk
25074 423662 0 0 3 0x14200 bored crypto
17962 388517 0 0 3 0x40014200 acpi0 acpi0
73148 467567 0 0 3 0x40014200 idle1
31357 432997 0 0 3 0x14200 bored softnet
58286 457206 0 0 7 0x14200 systqmp
80035 277844 0 0 3 0x14200 bored systq
50781 367995 0 0 3 0x40014200 bored softclock
2782 74409 0 0 3 0x40014200 idle0
1 372168 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 0:
exclusive mutex art_heap4 r = 0 (0xffffffff82690ea8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 mtx_enter_try+0x102
#2 mtx_enter+0x4b sys/kern/kern_lock.c:266
#3 pool_put+0x64 sys/kern/subr_pool.c:792
#4 art_table_gc+0x105 sys/net/art.c:814
#5 taskq_thread+0x9c sys/kern/kern_task.c:369
#6 proc_trampoline+0x1c
Process 58286 (systqmp) thread 0xffff800020e18000 (457206)
shared rwlock systqmp r = 0 (0xffffffff824defe0)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 taskq_thread+0x8f sys/kern/kern_task.c:368
#2 proc_trampoline+0x1c
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9464 6395K 6395K 78643K 10557 0
pcb 13 8K 8K 78643K 13 0
rtable 81 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 1809 196K 290K 78643K 12766 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 72 11K 12K 78643K 947 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 3033K 3097K 78643K 1868 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 2 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 10 0 0 1 0 1 1 0 8 0
pfstkey 112 10 0 0 1 0 1 1 0 8 0
pfstate 328 10 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 256 145 0 1 10 0 10 10 0 8 0
art_table 32 146 0 1 2 0 2 2 0 8 0
art_node 16 33 0 5 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 1640 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 4205 0 4205 1 0 1 1 0 8 1
percpumem 16 31 0 0 1 0 1 1 0 8 0
scxspl 192 3804 0 3804 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 1110 0 1054 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 2 0 0 1 0 1 1 0 8 0
mcl2k 2048 79 0 0 10 0 10 10 0 8 0
mtagpl 80 1 0 0 1 0 1 1 0 8 0
mbufpl 256 95 0 0 6 0 6 6 0 8 0
bufpl 280 2978 0 132 204 0 204 204 0 8 0
anonpl 16 22302 0 20699 13 1 12 12 0 124 3
amapchunkpl 152 721 0 656 4 0 4 4 0 158 1
amappl16 192 138 0 109 2 0 2 2 0 8 0
amappl15 184 3 0 1 1 0 1 1 0 8 0
amappl14 176 32 0 27 1 0 1 1 0 8 0
amappl13 168 23 0 21 1 0 1 1 0 8 0
amappl12 160 13 0 10 2 1 1 1 0 8 0
amappl11 152 53 0 38 1 0 1 1 0 8 0
amappl10 144 22 0 20 1 0 1 1 0 8 0
amappl9 136 232 0 230 1 0 1 1 0 8 0
amappl8 128 277 0 269 1 0 1 1 0 8 0
amappl7 120 112 0 101 1 0 1 1 0 8 0
amappl6 112 23 0 20 2 1 1 1 0 8 0
amappl5 104 130 0 115 1 0 1 1 0 8 0
amappl4 96 498 0 471 1 0 1 1 0 8 0
amappl3 88 104 0 99 1 0 1 1 0 8 0
amappl2 80 914 0 855 2 0 2 2 0 8 0
amappl1 72 15148 0 14728 23 5 18 18 0 8 8
amappl 80 474 0 446 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 6386 0 6362 2 0 2 2 0 8 0
vmmpepl 168 32821 0 31897 76 4 72 72 0 357 30
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 113276 0 109310 104 0 104 104 0 265 69
pmappl 232 225 0 212 1 0 1 1 0 8 0
extentpl 40 46 0 29 1 0 1 1 0 8 0
phpool 112 233 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(ffffffff82521ff0) 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
__sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x11 trace_cmp sys/dev/kcov.c:132 [inline]
__sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x11 sys/dev/kcov.c:198
msleep(ffffffff824def80,ffffffff824defa0,20,ffffffff82221be5,0) at msleep+0x70 sys/kern/kern_synch.c:217
taskq_next_work(ffffffff824def80,ffff800020e33178) at taskq_next_work+0xbe sys/kern/kern_task.c:323
taskq_thread(ffffffff824def80) at taskq_thread+0xe5 sys/kern/kern_task.c:366
end trace frame: 0x0, count: 8
ddb{0}> trace
x86_ipi_db(ffffffff82521ff0) 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
__sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x11 trace_cmp sys/dev/kcov.c:132 [inline]
__sanitizer_cov_trace_const_cmp4(0,0) at __sanitizer_cov_trace_const_cmp4+0x11 sys/dev/kcov.c:198
msleep(ffffffff824def80,ffffffff824defa0,20,ffffffff82221be5,0) at msleep+0x70 sys/kern/kern_synch.c:217
taskq_next_work(ffffffff824def80,ffff800020e33178) at taskq_next_work+0xbe sys/kern/kern_task.c:323
taskq_thread(ffffffff824def80) at taskq_thread+0xe5 sys/kern/kern_task.c:366
end trace frame: 0x0, count: -7
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(ffffffff821f8577) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82655688,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250
sbappendaddr(fffffd806f6db4b0,fffffd806f6db538,ffffffff82311bb8,fffffd806d7e7100,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804
rtm_sendup(fffffd806f6db4b0,fffffd806d7e7100,0) at rtm_sendup+0xef sys/net/rtsock.c:594
route_input(fffffd806d7e7100,0,2) at route_input+0x489 sys/net/rtsock.c:572
rtm_send(fffffd806f4e8850,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659
rt_ifa_del(ffff800000a0c100,400004,ffff800000a0c168,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0c100) at in_purgeaddr+0x114 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:1149
tun_clone_destroy(ffff8000009d5000) at tun_clone_destroy+0x1f2 sys/net/if_tun.c:329
end trace frame: 0xffff800020f64fa0, count: 0
ddb{1}> trace
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic(ffffffff821f8577) at panic+0x15c sys/kern/subr_prf.c:207
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82655688) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82655688,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_get(2,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250
sbappendaddr(fffffd806f6db4b0,fffffd806f6db538,ffffffff82311bb8,fffffd806d7e7100,0) at sbappendaddr+0x2e9 sys/kern/uipc_socket2.c:804
rtm_sendup(fffffd806f6db4b0,fffffd806d7e7100,0) at rtm_sendup+0xef sys/net/rtsock.c:594
route_input(fffffd806d7e7100,0,2) at route_input+0x489 sys/net/rtsock.c:572
rtm_send(fffffd806f4e8850,2,0,0) at rtm_send+0x18d sys/net/rtsock.c:1659
rt_ifa_del(ffff800000a0c100,400004,ffff800000a0c168,0) at rt_ifa_del+0x3bb sys/net/route.c:1190
in_purgeaddr(ffff800000a0c100) at in_purgeaddr+0x114 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:1149
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(ffff800020f65020) at spec_close+0x311 sys/kern/spec_vnops.c:555
VOP_CLOSE(fffffd806e741688,7,fffffd807f7bf900,ffff800020e6c008) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:174
vn_closefile(fffffd806d0ca8f8,ffff800020e6c008) at vn_closefile+0xd7 vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffffd806d0ca8f8,ffff800020e6c008) at vn_closefile+0xd7 sys/kern/vfs_vnops.c:614
fdrop(fffffd806d0ca8f8,ffff800020e6c008) at fdrop+0xc2 sys/kern/kern_descrip.c:1276
closef(fffffd806d0ca8f8,ffff800020e6c008) at closef+0x11c sys/kern/kern_descrip.c:1260
fdfree(ffff800020e6c008) at fdfree+0x101 sys/kern/kern_descrip.c:1192
exit1(ffff800020e6c008,0,9,1) at exit1+0x32c sys/kern/kern_exit.c:197
postsig(ffff800020e6c008,9) at postsig+0x4ed sigexit sys/kern/kern_sig.c:1483 [inline]
postsig(ffff800020e6c008,9) at postsig+0x4ed sys/kern/kern_sig.c:1415
userret(ffff800020e6c008) at userret+0x199 sys/kern/kern_sig.c:1867
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7f7ffffc20a0, count: -25
ddb{1}>