login: panic: pWoAoRlN_IcNaGc:h e_SPiLt eNmO_Tm aLgOWicER_EcDh ecOkN: SmYbSuCfApLl L cp1u3 7 f-r2e2e 03l3i6s t EXmIoTd if0 i9e
d
: Stopped at savectx+0xb1: movl $0,%gs:0x530
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*243098 50678 0 0x2 0 0 syz-executor.0
214049 15307 0 0x14000 0x200 1 softnet
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffca340, 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 0xfffffd8079856900+16 0x0!=0x8c42c26fdd0994c5
ddb{0}> trace
savectx() at savectx+0xb1
end of kernel
end trace frame: 0x7f7ffffca340, count: -1
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800020ed77a0
rbx 0
rdx 0x8b
rcx 0x2
rax 0x39
r8 0xffffffff81d5511f kprintf+0x16f
r9 0x1
r10 0x2
r11 0x627f590051d02aa4
r12 0
r13 0
r14 0xffff800020dddd48
r15 0
rip 0xffffffff81a703f1 savectx+0xb1
cs 0x8
rflags 0x46
rsp 0xffff800020ed7720
ss 0x10
savectx+0xb1: movl $0,%gs:0x530
ddb{0}> show proc
PROC (syz-executor.0) pid=243098 stat=onproc
flags process=2<EXEC,8ORPHAN> proc=0
pri=17, usrpri=56, nice=20
forw=0xffffffffffffffff, list=0xffff800020ddc008,0xffff800020dddae8
process=0xffff800020e39728 user=0xffff800020ed2000, vmspace=0xfffffd807f000b80
estcpu=36, cpticks=2, pctcpu=0.10
user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
98170 98161 45098 0 2 0 syz-executor.1
98170 446215 45098 0 3 0x4000080 bpf syz-executor.1
19811 389218 0 0 3 0x14200 bored sosplice
45098 416034 3651 0 3 0x82 nanosleep syz-executor.1
*50678 243098 3651 0 7 0x2 syz-executor.0
3651 106348 80305 0 3 0x82 thrsleep syz-fuzzer
3651 336493 80305 0 3 0x4000082 nanosleep syz-fuzzer
3651 284319 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 380355 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 172508 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 520910 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 30023 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 112669 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 128766 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 126700 80305 0 3 0x4000082 thrsleep syz-fuzzer
3651 224700 80305 0 3 0x4000082 kqread syz-fuzzer
80305 194232 34105 0 3 0x10008a pause ksh
34105 269748 48032 0 3 0x92 select sshd
92114 486485 1 0 3 0x100083 ttyin getty
48032 482870 1 0 3 0x80 select sshd
35439 8177 5544 74 3 0x100092 bpf pflogd
5544 116182 1 0 3 0x80 netio pflogd
20208 303657 83046 73 3 0x100090 kqread syslogd
83046 1342 1 0 3 0x100082 netio syslogd
96371 109268 1 77 3 0x100090 poll dhclient
60547 463268 1 0 3 0x80 poll dhclient
77825 381016 0 0 3 0x14200 bored smr
11469 490377 0 0 3 0x14200 pgzero zerothread
28696 367031 0 0 3 0x14200 aiodoned aiodoned
35087 393392 0 0 3 0x14200 syncer update
68157 3741 0 0 3 0x14200 cleaner cleaner
17324 303986 0 0 3 0x14200 reaper reaper
62915 213787 0 0 3 0x14200 pgdaemon pagedaemon
11845 409266 0 0 3 0x14200 bored crynlk
15594 94411 0 0 3 0x14200 bored crypto
70062 279135 0 0 3 0x40014200 acpi0 acpi0
81958 443737 0 0 3 0x40014200 idle1
15307 214049 0 0 7 0x14200 softnet
80492 221772 0 0 3 0x14200 bored systqmp
32201 11016 0 0 3 0x14200 bored systq
61368 11408 0 0 3 0x40014200 bored softclock
49516 488094 0 0 3 0x40014200 idle0
1 44682 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
CPU 0:
exclusive mutex &bq->bufq_mtx r = 0 (0xffff80000017ad68)
#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 bufq_dequeue+0x2c sys/kern/kern_bufq.c:199
#4 sdstart+0x9f sys/scsi/sd.c:683
#5 scsi_iopool_run+0x129 scsi_ioh_pending sys/scsi/scsi_base.c:404 [inline]
#5 scsi_iopool_run+0x129 sys/scsi/scsi_base.c:420
#6 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596
#7 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535
#8 sdstrategy+0x187 sys/scsi/sd.c:585
#9 spec_strategy+0x74 sys/kern/spec_vnops.c:473
#10 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712
#11 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#12 ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113
#13 ffs_truncate+0xc76
#14 ufs_rmdir+0x3af sys/ufs/ufs/ufs_vnops.c:1355
#15 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474
#16 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886
#17 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#17 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#18 Xsyscall+0x128
Process 50678 (syz-executor.0) thread 0xffff800020dddd48 (243098)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82911f98)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227
#2 mi_switch+0x392 sys/kern/sched_bsd.c:435
#3 sleep_finish+0x113 sys/kern/kern_synch.c:418
#4 sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline]
#4 sleep_finish_all+0x32 sys/kern/kern_synch.c:393
#5 tsleep+0x1cc sys/kern/kern_synch.c:155
#6 biowait+0xa6 sys/kern/vfs_bio.c:1256
#7 bwrite+0x1e4 sys/kern/vfs_bio.c:765
#8 ufs_dirremove+0x291
#9 ufs_rmdir+0x247 sys/ufs/ufs/ufs_vnops.c:1328
#10 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474
#11 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886
#12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd8068c18d60)
#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 (0xfffffd8068c18810)
#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 mutex &bq->bufq_mtx r = 0 (0xffff80000017ad68)
#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 bufq_dequeue+0x2c sys/kern/kern_bufq.c:199
#4 sdstart+0x9f sys/scsi/sd.c:683
#5 scsi_iopool_run+0x129 scsi_ioh_pending sys/scsi/scsi_base.c:404 [inline]
#5 scsi_iopool_run+0x129 sys/scsi/scsi_base.c:420
#6 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596
#7 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535
#8 sdstrategy+0x187 sys/scsi/sd.c:585
#9 spec_strategy+0x74 sys/kern/spec_vnops.c:473
#10 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712
#11 bwrite+0x1b9 sys/kern/vfs_bio.c:756
#12 ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113
#13 ffs_truncate+0xc76
#14 ufs_rmdir+0x3af sys/ufs/ufs/ufs_vnops.c:1355
#15 VOP_RMDIR+0xf8 sys/kern/vfs_vops.c:474
#16 dounlinkat+0x14c sys/kern/vfs_syscalls.c:1886
#17 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline]
#17 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570
#18 Xsyscall+0x128
Process 15307 (softnet) thread 0xffff800020d884e0 (214049)
exclusive rwlock netlock r = 0 (0xffffffff827527c8)
#0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline]
#0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164
#1 if_input_process+0x85 sys/net/if.c:935
#2 ifiq_process+0x80 sys/net/ifq.c:646
#3 taskq_thread+0xec sys/kern/kern_task.c:437
#4 proc_trampoline+0x1c
shared rwlock softnet r = 0 (0xffff80000002c070)
#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+0xdf sys/kern/kern_task.c:436
#2 proc_trampoline+0x1c
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 9500 6597K 7176K 78643K 10934 0
pcb 13 8K 8K 78643K 29 0
rtable 112 3K 7K 78643K 258 0
ifaddr 51 11K 12K 78643K 67 0
sysctl 2 0K 0K 78643K 2 0
counters 43 33K 33K 78643K 43 0
ioctlops 0 0K 4K 78643K 1482 0
iov 0 0K 16K 78643K 10 0
mount 1 1K 1K 78643K 1 0
vnodes 1220 77K 77K 78643K 1317 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 0K 0K 78643K 17 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1824 197K 290K 78643K 13058 0
file desc 5 13K 25K 78643K 108 0
proc 61 63K 95K 78643K 454 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 11 0
in_multi 37 2K 2K 78643K 46 0
ether_multi 1 0K 0K 78643K 6 0
mrt 0 0K 0K 78643K 1 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 37 175K 175K 78643K 37 0
exec 0 0K 1K 78643K 215 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 120 22K 24K 78643K 1266 0
UVM aobj 4 2K 2K 78643K 4 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 8 0
NDP 7 0K 0K 78643K 12 0
temp 74 3856K 3928K 78643K 3167 0
kqueue 3 4K 6K 78643K 4 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 21 0 19 1 0 1 1 0 8 0
rtentry 112 48 0 1 2 0 2 2 0 8 0
unpcb 120 69 0 59 1 0 1 1 0 8 0
syncache 264 4 0 4 1 1 0 1 0 8 0
tcpqe 32 154 0 154 1 0 1 1 0 8 1
tcpcb 544 30 0 26 1 0 1 1 0 8 0
inpcb 296 184 0 177 2 0 2 2 0 8 1
nd6 48 8 0 0 1 0 1 1 0 8 0
pffrag 232 1 0 0 1 0 1 1 0 482 0
pffrnode 88 1 0 0 1 0 1 1 0 8 0
pffrent 40 2 0 1 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
pfrktable 1344 20 0 20 1 0 1 1 0 8 1
pftag 88 1 0 0 1 0 1 1 0 8 0
pfqueue 264 2 0 0 1 0 1 1 0 8 0
pfstitem 24 21 0 0 1 0 1 1 0 8 0
pfstkey 112 21 0 0 1 0 1 1 0 8 0
pfstate 328 21 0 0 2 0 2 2 0 8 0
pfrule 1360 23 0 18 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 218 0 0 14 0 14 14 0 8 0
art_table 32 219 0 0 2 0 2 2 0 8 0
art_node 16 47 0 5 1 0 1 1 0 8 0
semupl 112 1 0 1 1 0 1 1 0 8 1
semapl 112 13 0 3 1 0 1 1 0 8 0
shmpl 112 2 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1535 0 131 89 0 89 89 0 8 0
ffsino 272 1535 0 131 95 1 94 94 0 8 0
nchpl 144 1859 0 251 60 0 60 60 0 8 0
uvmvnodes 72 1662 0 0 31 0 31 31 0 8 0
vnodes 208 1662 0 0 88 0 88 88 0 8 0
namei 1024 5030 0 5030 2 1 1 1 0 8 1
percpumem 16 32 0 0 1 0 1 1 0 8 0
pfiaddrpl 120 6 0 6 1 0 1 1 0 8 1
scxspl 192 5688 0 5688 8 1 7 7 0 8 7
plimitpl 152 17 0 9 1 0 1 1 0 8 0
sigapl 424 324 0 292 4 0 4 4 0 8 0
futexpl 56 1505 0 1505 1 0 1 1 0 8 1
knotepl 112 62 0 43 1 0 1 1 0 8 0
kqueuepl 144 10 0 8 1 0 1 1 0 8 0
pipelkpl 48 91 0 81 1 0 1 1 0 8 0
pipepl 120 182 0 163 1 0 1 1 0 8 0
fdescpl 496 308 0 292 3 0 3 3 0 8 0
filepl 152 1698 0 1596 6 1 5 5 0 8 1
lockfpl 104 35 0 34 1 0 1 1 0 8 0
lockfspl 48 11 0 10 1 0 1 1 0 8 0
sessionpl 112 18 0 7 1 0 1 1 0 8 0
pgrppl 48 18 0 7 1 0 1 1 0 8 0
ucredpl 96 97 0 88 1 0 1 1 0 8 0
zombiepl 144 292 0 292 2 1 1 1 0 8 1
processpl 984 324 0 292 6 1 5 5 0 8 0
procpl 624 507 0 464 4 0 4 4 0 8 0
sosppl 128 2 0 2 1 0 1 1 0 8 1
sockpl 400 274 0 255 5 1 4 4 0 8 2
mcl64k 65536 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 2 0 0 1 0 1 1 0 8 0
mcl9k 9216 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k 2048 175 0 0 21 0 21 21 0 8 0
mtagpl 96 51 0 0 2 0 2 2 0 8 0
mbufpl 256 203 0 0 13 0 13 13 0 8 0
bufpl 280 3606 0 133 249 0 249 249 0 8 0
anonpl 16 44435 0 28219 67 1 66 66 0 124 0
amapchunkpl 152 1654 0 1502 14 0 14 14 0 158 7
amappl16 192 1239 0 365 44 0 44 44 0 8 0
amappl15 184 1 0 1 1 1 0 1 0 8 0
amappl14 176 101 0 94 1 0 1 1 0 8 0
amappl13 168 30 0 26 1 0 1 1 0 8 0
amappl12 160 84 0 79 2 1 1 1 0 8 0
amappl11 152 62 0 47 1 0 1 1 0 8 0
amappl10 144 18 0 14 1 0 1 1 0 8 0
amappl9 136 390 0 389 1 0 1 1 0 8 0
amappl8 128 337 0 307 1 0 1 1 0 8 0
amappl7 120 118 0 107 1 0 1 1 0 8 0
amappl6 112 24 0 21 1 0 1 1 0 8 0
amappl5 104 162 0 146 1 0 1 1 0 8 0
amappl4 96 533 0 499 1 0 1 1 0 8 0
amappl3 88 145 0 138 1 0 1 1 0 8 0
amappl2 80 1555 0 1483 2 0 2 2 0 8 0
amappl1 72 16688 0 16239 23 11 12 18 0 8 2
amappl 80 754 0 708 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 3 0 0 1 0 1 1 0 8 0
uaddrrnd 24 308 0 292 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 308 0 292 1 0 1 1 0 8 0
vmmpekpl 168 6525 0 6492 2 0 2 2 0 8 0
vmmpepl 168 44684 0 42646 116 5 111 111 0 357 22
vmsppl 368 307 0 292 2 0 2 2 0 8 0
pdppl 4096 623 0 584 7 1 6 6 0 8 1
pvpl 32 151886 0 132546 162 0 162 162 0 265 5
pmappl 232 307 0 292 2 0 2 2 0 8 1
extentpl 40 53 0 36 1 0 1 1 0 8 0
phpool 112 264 0 7 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: 0x7f7ffffca340, count: -1
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020d70ff0) 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(ffffffff823f976d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff823f976d) at panic+0xf3 sys/kern/subr_prf.c:197
pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82912b20,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
tcp_output(ffff800000ada320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673
tcp_input(ffff800020da9008,ffff800020da9014,6,2) at tcp_input+0x2356
end trace frame: 0xffff800020da8ec0, count: 0
ddb{1}> trace
x86_ipi_db(ffff800020d70ff0) 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(ffffffff823f976d) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline]
panic(ffffffff823f976d) at panic+0xf3 sys/kern/subr_prf.c:197
pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline]
pool_cache_get(ffffffff82912b20) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884
pool_get(ffffffff82912b20,2) at pool_get+0x91 sys/kern/subr_pool.c:572
m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 m_get sys/kern/uipc_mbuf.c:250 [inline]
m_copym(fffffd806d5e1000,1600,c4,2) at m_copym+0x174 sys/kern/uipc_mbuf.c:667
tcp_output(ffff800000ada320) at tcp_output+0x15ba sys/netinet/tcp_output.c:673
tcp_input(ffff800020da9008,ffff800020da9014,6,2) at tcp_input+0x2356
ip_deliver(ffff800020da9008,ffff800020da9014,6,2) at ip_deliver+0x353 sys/netinet/ip_input.c:668
ip_ours(ffff800020da9008,ffff800020da9014,ffff800020d884e0,0) at ip_ours+0x412
ip_input_if(ffff800020da9008,ffff800020da9014,4,0,ffff80000017b2a8) at ip_input_if+0x6ce
ipv4_input(ffff80000017b2a8,fffffd807cd83e00) at ipv4_input+0x48 sys/netinet/ip_input.c:215
ether_input(ffff80000017b2a8,fffffd807cd83e00,0) at ether_input+0x345 sys/net/if_ethersubr.c:461
if_input_process(ffff80000017b2a8,ffff800020da9138) at if_input_process+0x10b if_ih_input sys/net/if.c:902 [inline]
if_input_process(ffff80000017b2a8,ffff800020da9138) at if_input_process+0x10b sys/net/if.c:936
ifiq_process(ffff80000017b6a0) at ifiq_process+0x80 sys/net/ifq.c:646
taskq_thread(ffff80000002c000) at taskq_thread+0xec sys/kern/kern_task.c:437
end trace frame: 0x0, count: -22