panic: pool_cache_iWtAeRmNI_NmGa:g icS_PcL hNecOTk : LOmWbEuRfEpDl OcNp u SYfSreCAeL Ll i1s3t7 mo-1d9i7f8i8e8d :E XiItTe m0 a9d
dr
Stopped at savectx+0xb1: movl $0,%gs:0x530
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*429070 76132 0 0x2 0 0 syz-executor.0
209501 87618 0 0x14000 0x200 1 softnet
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffcfaf0, count: 14
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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd80699ec400+16 0x0!=0x881ab9e01460d965
ddb{0}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffcfaf0, count: -1
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800020f6be20
rbx 0
rdx 0x8b
rcx 0x2
rax 0x39
r8 0xffffffff81c69d7f kprintf+0x16f
r9 0x1
r10 0x2
r11 0x86f30ec4b80ce8e7
r12 0
r13 0
r14 0xffff800020e6dad8
r15 0
rip 0xffffffff81c753f1 savectx+0xb1
cs 0x8
rflags 0x46
rsp 0xffff800020f6bda0
ss 0x10
savectx+0xb1: movl $0,%gs:0x530
ddb{0}> show proc
PROC (syz-executor.0) pid=429070 stat=onproc
flags process=2<EXEC,8ORPHAN> proc=0
pri=69, usrpri=69, nice=20
forw=0xffffffffffffffff, list=0xffff800020e6c9c8,0xffff800020e93af8
process=0xffff800020ec9b00 user=0xffff800020f66000, vmspace=0xfffffd807efffcf0
estcpu=36, cpticks=3, pctcpu=0.13
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
77324 67350 19964 0 2 0x2 syz-executor.1
*76132 429070 19964 0 7 0x2 syz-executor.0
19964 365965 4751 0 3 0x82 thrsleep syz-fuzzer
19964 348052 4751 0 3 0x4000082 nanosleep syz-fuzzer
19964 489504 4751 0 3 0x4000082 thrsleep syz-fuzzer
19964 250206 4751 0 3 0x4000082 nanosleep syz-fuzzer
19964 116946 4751 0 3 0x4000082 kqread syz-fuzzer
19964 167545 4751 0 3 0x4000082 thrsleep syz-fuzzer
19964 276719 4751 0 3 0x4000082 thrsleep syz-fuzzer
19964 326315 4751 0 3 0x4000082 thrsleep syz-fuzzer
19964 281485 4751 0 3 0x4000082 thrsleep syz-fuzzer
19964 421788 4751 0 3 0x4000082 thrsleep syz-fuzzer
4751 457085 29510 0 3 0x10008a pause ksh
29510 430748 32696 0 3 0x92 select sshd
36179 255460 1 0 3 0x100083 ttyin getty
32696 444292 1 0 3 0x80 select sshd
77549 331148 71412 74 3 0x100092 bpf pflogd
71412 321793 1 0 3 0x80 netio pflogd
47299 441302 69900 73 3 0x100090 kqread syslogd
69900 103778 1 0 3 0x100082 netio syslogd
13904 161 1 77 3 0x100090 poll dhclient
31872 192289 1 0 3 0x80 poll dhclient
50588 410177 0 0 3 0x14200 bored smr
43190 476814 0 0 3 0x14200 pgzero zerothread
26816 429984 0 0 3 0x14200 aiodoned aiodoned
89029 22876 0 0 3 0x14200 syncer update
60751 326334 0 0 3 0x14200 cleaner cleaner
81619 519301 0 0 3 0x14200 reaper reaper
88553 230558 0 0 3 0x14200 pgdaemon pagedaemon
32194 29371 0 0 3 0x14200 bored crynlk
22394 139246 0 0 3 0x14200 bored crypto
30884 442501 0 0 3 0x40014200 acpi0 acpi0
97342 504342 0 0 3 0x40014200 idle1
87618 209501 0 0 7 0x14200 softnet
61546 50942 0 0 3 0x14200 bored systqmp
60682 269545 0 0 3 0x14200 bored systq
24994 303536 0 0 3 0x40014200 bored softclock
27250 470066 0 0 3 0x40014200 idle0
1 136406 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &iopl->mtx r = 0 (0xffff800000038170)
#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 scsi_xsh_runqueue+0x37 scsi_pending_start sys/scsi/scsi_base.c:214 [inline]
#3 scsi_xsh_runqueue+0x37 sys/scsi/scsi_base.c:576
#4 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535
#5 sdstrategy+0x187 sys/scsi/sd.c:585
#6 spec_strategy+0x74 sys/kern/spec_vnops.c:468
#7 ufs_strategy+0x17c
#8 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712
#9 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#10 ufs_dirremove+0x291
#11 ufs_rmdir+0x247 sys/ufs/ufs/ufs_vnops.c:1328
#12 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474
#13 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886
#14 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#14 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#15 Xsyscall+0x128
Process 76132 (syz-executor.0) thread 0xffff800020e6dad8 (429070)
exclusive rrwlock inode r = 0 (0xfffffd8064700d68)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vget+0x1c8 sys/kern/vfs_subr.c:671
#6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119
#7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329
#8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487
#9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90
#10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568
#11 namei+0x63c sys/kern/vfs_lookup.c:249
#12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853
#13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806881e2c0)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462
#3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603
#4 vn_lock+0x81 sys/kern/vfs_vnops.c:575
#5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419
#6 namei+0x63c sys/kern/vfs_lookup.c:249
#7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853
#8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#9 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff826b0e70)
#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
exclusive mutex &iopl->mtx r = 0 (0xffff800000038170)
#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 scsi_xsh_runqueue+0x37 scsi_pending_start sys/scsi/scsi_base.c:214 [inline]
#3 scsi_xsh_runqueue+0x37 sys/scsi/scsi_base.c:576
#4 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535
#5 sdstrategy+0x187 sys/scsi/sd.c:585
#6 spec_strategy+0x74 sys/kern/spec_vnops.c:468
#7 ufs_strategy+0x17c
#8 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712
#9 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#10 ufs_dirremove+0x291
#11 ufs_rmdir+0x247 sys/ufs/ufs/ufs_vnops.c:1328
#12 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474
#13 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886
#14 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#14 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#15 Xsyscall+0x128
Process 87618 (softnet) thread 0xffff800020e18000 (209501)
exclusive rwlock netlock r = 0 (0xffffffff824e45e8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 rw_enter+0x453 sys/kern/kern_rwlock.c:311
#2 if_input_process+0x85 sys/net/if.c:941
#3 ifiq_process+0x80 sys/net/ifq.c:646
#4 taskq_thread+0x9c sys/kern/kern_task.c:369
#5 proc_trampoline+0x1c
shared rwlock softnet r = 0 (0xffff80000002b0e0)
#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{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9527 6541K 6785K 78643K 10928 0
pcb 13 8K 8K 78643K 60 0
rtable 119 14K 15K 78643K 320 0
ifaddr 80 16K 16K 78643K 126 0
counters 43 33K 34K 78643K 47 0
ioctlops 0 0K 4K 78643K 1513 0
iov 0 0K 16K 78643K 42 0
mount 1 1K 1K 78643K 1 0
vnodes 1225 77K 77K 78643K 1327 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 12 1K 1K 78643K 18 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 4 9K 25K 78643K 258 0
sigio 0 0K 0K 78643K 2 0
proc 60 63K 83K 78643K 472 0
subproc 32 2K 2K 78643K 34 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 0 0K 0K 78643K 26 0
in_multi 52 2K 2K 78643K 79 0
ether_multi 1 0K 0K 78643K 9 0
mrt 1 0K 0K 78643K 6 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 43 201K 201K 78643K 43 0
exec 0 0K 1K 78643K 233 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 123 39K 39K 78643K 1754 0
UVM aobj 6 2K 2K 78643K 6 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 20 0
NDP 12 0K 0K 78643K 18 0
temp 125 3042K 3110K 78643K 8299 0
kqueue 3 4K 10K 78643K 8 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
arp 64 6 0 0 1 0 1 1 0 8 0
plcache 128 20 0 0 1 0 1 1 0 8 0
rtpcb 80 38 0 36 1 0 1 1 0 8 0
rtentry 112 47 0 3 2 0 2 2 0 8 0
unpcb 120 379 0 369 1 0 1 1 0 8 0
syncache 264 10 0 10 2 1 1 1 0 8 1
tcpqe 32 659 0 659 2 1 1 1 0 8 1
tcpcb 544 230 0 225 1 0 1 1 0 8 0
inpcb 280 559 0 551 2 0 2 2 0 8 1
rttmr 72 2 0 2 1 1 0 1 0 8 0
nd6 48 6 0 0 1 0 1 1 0 8 0
pkpcb 40 4 0 4 1 0 1 1 0 8 1
pffrag 232 1 0 1 1 0 1 1 0 482 1
pffrnode 88 1 0 1 1 0 1 1 0 8 1
pffrent 40 45 0 45 1 0 1 1 0 8 1
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 35 0 30 1 0 1 1 0 8 0
pfstitem 24 41 0 2 1 0 1 1 0 8 0
pfstkey 112 41 0 2 2 0 2 2 0 8 0
pfstate 328 41 0 2 4 0 4 4 0 8 0
pfrule 1360 29 0 20 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 188 0 0 12 0 12 12 0 8 0
art_table 32 189 0 0 2 0 2 2 0 8 0
art_node 16 46 0 6 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 7 1 0 1 1 0 8 0
semupl 112 3 0 3 1 1 0 1 0 8 0
semapl 112 12 0 2 1 0 1 1 0 8 0
shmpl 112 4 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1748 0 343 89 0 89 89 0 8 0
ffsino 272 1748 0 343 96 1 95 95 0 8 0
nchpl 144 2288 0 681 60 0 60 60 0 8 0
uvmvnodes 72 1865 0 0 34 0 34 34 0 8 0
vnodes 208 1865 0 0 99 0 99 99 0 8 0
namei 1024 6091 0 6091 2 1 1 1 0 8 1
percpumem 16 34 0 2 1 0 1 1 0 8 0
vcpupl 1984 2 0 0 1 0 1 1 0 8 0
vmpool 560 2 0 0 1 0 1 1 0 8 0
pfiaddrpl 120 12 0 8 1 0 1 1 0 8 0
scxspl 192 6710 0 6710 7 4 3 6 0 8 3
plimitpl 152 25 0 17 1 0 1 1 0 8 0
sigapl 424 473 0 443 4 0 4 4 0 8 0
futexpl 56 4001 0 4001 1 0 1 1 0 8 1
knotepl 112 67 0 48 1 0 1 1 0 8 0
kqueuepl 144 26 0 24 1 0 1 1 0 8 0
pipelkpl 48 107 0 97 1 0 1 1 0 8 0
pipepl 120 214 0 195 1 0 1 1 0 8 0
fdescpl 496 458 0 443 3 0 3 3 0 8 0
filepl 152 2840 0 2739 6 1 5 5 0 8 1
lockfpl 104 86 0 85 1 0 1 1 0 8 0
lockfspl 48 29 0 28 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 20 0 9 1 0 1 1 0 8 0
ucredpl 96 165 0 155 1 0 1 1 0 8 0
zombiepl 144 443 0 443 2 1 1 1 0 8 1
processpl 984 473 0 443 6 1 5 5 0 8 1
procpl 624 969 0 930 4 0 4 4 0 8 0
sockpl 400 981 0 961 6 1 5 5 0 8 2
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl12k 12288 4 0 0 1 0 1 1 0 8 0
mcl9k 9216 3 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 253 0 0 31 0 31 31 0 8 0
mtagpl 80 24 0 0 1 0 1 1 0 8 0
mbufpl 256 303 0 0 18 0 18 18 0 8 0
bufpl 280 4182 0 135 290 0 290 290 0 8 0
anonpl 16 55017 0 39146 67 1 66 66 0 124 1
amapchunkpl 152 2863 0 2707 20 2 18 20 0 158 8
amappl16 192 1984 0 1146 44 0 44 44 0 8 1
amappl15 184 126 0 124 1 0 1 1 0 8 0
amappl14 176 25 0 19 1 0 1 1 0 8 0
amappl13 168 28 0 25 1 0 1 1 0 8 0
amappl12 160 1 0 1 1 1 0 1 0 8 0
amappl11 152 177 0 161 1 0 1 1 0 8 0
amappl10 144 24 0 18 1 0 1 1 0 8 0
amappl9 136 388 0 387 1 0 1 1 0 8 0
amappl8 128 355 0 325 2 0 2 2 0 8 0
amappl7 120 129 0 115 1 0 1 1 0 8 0
amappl6 112 151 0 145 1 0 1 1 0 8 0
amappl5 104 236 0 220 1 0 1 1 0 8 0
amappl4 96 606 0 578 1 0 1 1 0 8 0
amappl3 88 113 0 106 1 0 1 1 0 8 0
amappl2 80 2727 0 2663 2 0 2 2 0 8 0
amappl1 72 20094 0 19665 23 13 10 18 0 8 0
amappl 80 1229 0 1184 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 5 0 0 1 0 1 1 0 8 0
uaddrrnd 24 460 0 443 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 460 0 443 1 0 1 1 0 8 0
vmmpekpl 168 7464 0 7434 2 0 2 2 0 8 0
vmmpepl 168 62358 0 60463 122 15 107 114 0 357 17
vmsppl 368 459 0 443 2 0 2 2 0 8 0
pdppl 4096 928 0 888 6 0 6 6 0 8 0
pvpl 32 186116 0 167190 163 1 162 162 0 265 5
pmappl 232 459 0 443 3 1 2 2 0 8 1
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 279 0 6 8 0 8 8 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffcfaf0, count: -1
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020e00ff0) 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
x86_bus_space_io_write_1(3f8,0,20) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759
comcnputc(800,20) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline]
comcnputc(800,20) at comcnputc+0x131 sys/dev/ic/com.c:1254
cnputc(20) at cnputc+0x4c sys/dev/cons.c:239
kputchar(20,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700
panic(ffffffff821fdb10) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff821fdb10) at panic+0xf3 sys/kern/subr_prf.c:197
pool_cache_get(ffffffff826b7ec0) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff826b7ec0) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff826b7ec0,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd80743a3d00,1b80,2c4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd80743a3d00,1b80,2c4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
tcp_output(ffff800000a0c760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673
tcp_input(ffff800020e39cf8,ffff800020e39d04,6,2) at tcp_input+0x2356
end trace frame: 0xffff800020e39bb0, count: 0
ddb{1}> trace
x86_ipi_db(ffff800020e00ff0) 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
x86_bus_space_io_write_1(3f8,0,20) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759
comcnputc(800,20) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline]
comcnputc(800,20) at comcnputc+0x131 sys/dev/ic/com.c:1254
cnputc(20) at cnputc+0x4c sys/dev/cons.c:239
kputchar(20,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343
kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700
panic(ffffffff821fdb10) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff821fdb10) at panic+0xf3 sys/kern/subr_prf.c:197
pool_cache_get(ffffffff826b7ec0) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff826b7ec0) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff826b7ec0,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd80743a3d00,1b80,2c4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd80743a3d00,1b80,2c4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
tcp_output(ffff800000a0c760) at tcp_output+0x15ba sys/netinet/tcp_output.c:673
tcp_input(ffff800020e39cf8,ffff800020e39d04,6,2) at tcp_input+0x2356
ip_deliver(ffff800020e39cf8,ffff800020e39d04,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668
ip_ours(ffff800020e39cf8,ffff800020e39d04,ffff800020e18000,0) at ip_ours+0x412
ip_input_if(ffff800020e39cf8,ffff800020e39d04,4,0,ffff80000017b2a8) at ip_input_if+0x6ce
ipv4_input(ffff80000017b2a8,fffffd80743a4e00) at ipv4_input+0x48 sys/netinet/ip_input.c:215
ether_input(ffff80000017b2a8,fffffd80743a4e00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461
if_input_process(ffff80000017b2a8,ffff800020e39e28) at if_input_process+0x10b if_ih_input sys/net/if.c:908 [inline]
if_input_process(ffff80000017b2a8,ffff800020e39e28) at if_input_process+0x10b sys/net/if.c:942
ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002b080) at taskq_thread+0x9c sys/kern/kern_task.c:369
end trace frame: 0x0, count: -22