panic: pool_do_get: fdescpl free list modified: page 0xfffffd806bb43000; item addr 0xfffffd806bb439b0; offset 0x48=0xdeaf4153
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
512548 78617 32767 0x10 0 0 syz-executor.0
*315725 40931 32767 0x10 0 1K syz-executor.5
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828e7346) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82e04248,9,ffff800033f63f68) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82e04248,9) at pool_get+0xed sys/kern/subr_pool.c:582
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 fdinit sys/kern/kern_descrip.c:1067 [inline]
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 sys/kern/kern_descrip.c:1106
process_new(ffff80002a232a90,ffff8000ffff1f28,1) at process_new+0x390 sys/kern/kern_fork.c:273
fork1(ffff80002a231ff0,1,ffffffff817148b0,0,ffff800033f64190,0) at fork1+0x318 sys/kern/kern_fork.c:399
syscall(ffff800033f64240) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff800033f64240) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77b60136d000, count: 6
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
*cpu1: pool_do_get: fdescpl free list modified: page 0xfffffd806bb43000; item addr 0xfffffd806bb439b0; offset 0x48=0xdeaf4153
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828e7346) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82e04248,9,ffff800033f63f68) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82e04248,9) at pool_get+0xed sys/kern/subr_pool.c:582
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 fdinit sys/kern/kern_descrip.c:1067 [inline]
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 sys/kern/kern_descrip.c:1106
process_new(ffff80002a232a90,ffff8000ffff1f28,1) at process_new+0x390 sys/kern/kern_fork.c:273
fork1(ffff80002a231ff0,1,ffffffff817148b0,0,ffff800033f64190,0) at fork1+0x318 sys/kern/kern_fork.c:399
syscall(ffff800033f64240) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff800033f64240) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77b60136d000, count: -9
ddb{1}> show registers
rdi 0
rsi 0x1
rbp 0xffff800033f63db0
rbx 0xffff800029cfcca7
rdx 0
rcx 0xffff80002a231ff0
rax 0xffff800029cfbff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0xc6770a03fea9f08f
r11 0x8e27834b548fb64f
r12 0xffff800029cfcaa8
r13 0
r14 0
r15 0x1
rip 0xffffffff81257e7c db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff800033f63da0
ss 0x10
db_enter+0x1c: addq $0x8,%rsp
ddb{1}> show proc
PROC (syz-executor.5) tid=315725 pid=40931 tcnt=1 stat=onproc
flags process=10<SUGID> proc=0
runpri=16, usrpri=82, slppri=16, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a20e2b8,0xffff80002a2312b8
process=0xffff8000ffff1f28 user=0xffff800033f5f000, vmspace=0xfffffd80698f9a98
estcpu=32, cpticks=1, pctcpu=0.2, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
84466 149082 17725 32767 2 0x10 syz-executor.1
22970 184489 1094 32767 2 0x10 syz-executor.3
27624 493938 90517 32767 3 0x90 nanoslp syz-executor.6
27624 121923 90517 32767 3 0x4000090 netcon2 syz-executor.6
27624 466734 90517 32767 3 0x4000010 fdlock syz-executor.6
27624 450299 90517 32767 3 0x4000090 fsleep syz-executor.6
78617 512548 39431 32767 7 0x10 syz-executor.0
39431 357042 10960 0 3 0x82 wait syz-executor.0
21423 383642 85661 32767 2 0x90 syz-executor.2
85661 260465 10960 0 3 0x82 wait syz-executor.2
17725 13549 99761 32767 2 0x10 syz-executor.1
99761 491966 10960 0 3 0x82 wait syz-executor.1
18338 426455 48295 32767 2 0x90 syz-executor.7
48295 30045 10960 0 3 0x82 wait syz-executor.7
1094 454404 45211 32767 2 0x10 syz-executor.3
45211 388825 10960 0 3 0x82 wait syz-executor.3
90517 175270 13732 32767 3 0x90 nanoslp syz-executor.6
13732 191094 10960 0 3 0x82 wait syz-executor.6
70215 305360 0 0 3 0x14200 bored sosplice
*40931 315725 34046 32767 7 0x10 syz-executor.5
84440 219649 20740 32767 2 0x90 syz-executor.4
34046 261726 10960 0 3 0x82 wait syz-executor.5
20740 415357 10960 0 3 0x82 wait syz-executor.4
10960 309828 63235 0 3 0x2000082 thrsleep syz-fuzzer
10960 279115 63235 0 3 0x6000082 nanoslp syz-fuzzer
10960 441908 63235 0 3 0x6000082 wait syz-fuzzer
10960 117848 63235 0 3 0x6000082 thrsleep syz-fuzzer
10960 96994 63235 0 2 0x6000002 syz-fuzzer
10960 124276 63235 0 3 0x6000082 wait syz-fuzzer
10960 374604 63235 0 3 0x6000082 thrsleep syz-fuzzer
10960 149454 63235 0 3 0x6000082 wait syz-fuzzer
10960 408737 63235 0 3 0x6000082 wait syz-fuzzer
10960 405068 63235 0 3 0x6000082 wait syz-fuzzer
10960 184576 63235 0 3 0x6000082 thrsleep syz-fuzzer
10960 103403 63235 0 3 0x6000082 wait syz-fuzzer
10960 192752 63235 0 3 0x6000082 wait syz-fuzzer
10960 172140 63235 0 3 0x6000082 thrsleep syz-fuzzer
10960 501422 63235 0 3 0x6000082 wait syz-fuzzer
10960 502539 63235 0 3 0x6000082 kqread syz-fuzzer
63235 138913 40598 0 3 0x10008a sigsusp ksh
40598 436291 28159 0 2 0x12 sshd
26072 96080 1 0 3 0x100083 ttyin getty
28159 415699 1 0 3 0x88 kqread sshd
66421 237779 66787 73 3 0x1100090 kqread syslogd
66787 102188 1 0 3 0x100082 netio syslogd
26173 37033 1 0 3 0x100080 kqread resolvd
65845 255560 91113 77 3 0x100092 kqread dhcpleased
95788 138275 91113 77 3 0x100092 kqread dhcpleased
91113 157556 1 0 3 0x80 kqread dhcpleased
23022 234073 0 0 3 0x14200 bored smr
91883 303568 0 0 2 0x14200 zerothread
16964 131008 0 0 3 0x14200 aiodoned aiodoned
19301 405252 0 0 3 0x14200 syncer update
53771 263066 0 0 3 0x14200 cleaner cleaner
547 365457 0 0 3 0x14200 reaper reaper
97408 354531 0 0 3 0x14200 pgdaemon pagedaemon
31495 243506 0 0 3 0x14200 bored viomb
32195 394665 0 0 3 0x40014200 acpi0 acpi0
45214 341801 0 0 3 0x40014200 idle1
50255 55244 0 0 3 0x14200 bored softnet3
33681 342444 0 0 3 0x14200 bored softnet2
18980 197466 0 0 3 0x14200 bored softnet1
56243 480320 0 0 3 0x14200 bored softnet0
22668 516576 0 0 3 0x14200 bored systqmp
32412 230903 0 0 3 0x14200 bored systq
56897 45413 0 0 3 0x14200 tmoslp softclockmp
55730 228502 0 0 3 0x40014200 tmoslp softclock
53567 456322 0 0 3 0x40014200 idle0
1 436971 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
CPU 1:
exclusive mutex fdescpl r = 0 (0xffffffff82e04258)
#0 witness_lock+0x447
#1 mtx_enter_try+0x104
#2 mtx_enter+0x4f sys/kern/kern_lock.c:266
#3 pool_get+0xc1 sys/kern/subr_pool.c:579
#4 fdcopy+0x48 fdinit sys/kern/kern_descrip.c:1067 [inline]
#4 fdcopy+0x48 sys/kern/kern_descrip.c:1106
#5 process_new+0x390 sys/kern/kern_fork.c:273
#6 fork1+0x318 sys/kern/kern_fork.c:399
#7 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#7 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#8 Xsyscall+0x128
Process 27624 (syz-executor.6) thread 0xffff80002a1cb7f8 (466734)
exclusive rwlock sysctllk r = 0 (0xffffffff82cb3a50)
#0 witness_lock+0x447
#1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309
#2 sys_sysctl+0x1c3 sys/kern/kern_sysctl.c:238
#3 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#3 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#4 Xsyscall+0x128
Process 40931 (syz-executor.5) thread 0xffff80002a231ff0 (315725)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82da8dc8)
#0 witness_lock+0x447
#1 syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline]
#1 syscall+0x51a sys/arch/amd64/amd64/trap.c:577
#2 Xsyscall+0x128
exclusive mutex fdescpl r = 0 (0xffffffff82e04258)
#0 witness_lock+0x447
#1 mtx_enter_try+0x104
#2 mtx_enter+0x4f sys/kern/kern_lock.c:266
#3 pool_get+0xc1 sys/kern/subr_pool.c:579
#4 fdcopy+0x48 fdinit sys/kern/kern_descrip.c:1067 [inline]
#4 fdcopy+0x48 sys/kern/kern_descrip.c:1106
#5 process_new+0x390 sys/kern/kern_fork.c:273
#6 fork1+0x318 sys/kern/kern_fork.c:399
#7 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
#7 syscall+0x533 sys/arch/amd64/amd64/trap.c:577
#8 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10229 6414K 6419K 166960K 11372 0
pcb 15 16K 18K 166960K 21 0
rtable 250 7K 7K 166960K 3174 0
pf 29 8K 8K 166960K 71 0
ifaddr 44 15K 16K 166960K 134 0
ifgroup 50 2K 2K 166960K 134 0
sysctl 4 1K 4K 166960K 6 0
counters 64 36K 36K 166960K 106 0
ioctlops 0 0K 2K 166960K 238 0
iov 0 0K 28K 166960K 2536 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1279 80K 80K 166960K 8199 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 211 0
VM map 2 1K 1K 166960K 2 0
sem 12 1K 1K 166960K 4193 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 21 77K 121K 166960K 23099 0
sigio 0 0K 0K 166960K 486 0
proc 56 78K 115K 166960K 1980 0
subproc 104 6K 6K 166960K 377 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 1908 0
in_multi 99 7K 7K 166960K 516 0
ether_multi 1 0K 0K 166960K 31 0
mrt 1 0K 0K 166960K 1 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 355 1579K 1579K 166960K 355 0
exec 0 0K 1K 166960K 6779 0
tdb 3 0K 0K 166960K 3 0
pagedep 1 8K 8K 166960K 1 0
inodedep 1 32K 32K 166960K 1 0
newblk 1 0K 0K 166960K 1 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 390 92K 109K 166960K 229030 0
UVM aobj 131 4K 4K 166960K 131 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 388 0
NDP 11 0K 2K 166960K 90 0
temp 75 6713K 6792K 166960K 56900 0
kqueue 12 18K 28K 166960K 1917 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 24 0 0 1 0 1 1 0 8 0
rtpcb 120 2364 0 2361 20 19 1 3 0 8 0
rtentry 112 379 0 261 4 0 4 4 0 8 0
unpcb 144 19514 0 19501 145 144 1 8 0 8 0
syncache 320 493 0 493 34 34 0 1 0 8 0
sackhl 24 1 0 1 1 1 0 1 0 8 0
tcpqe 32 419 0 419 31 31 0 1 0 8 0
tcpcb 808 13074 0 13046 241 236 5 17 0 8 0
arp 120 66 0 47 1 0 1 1 0 8 0
ipq 40 27 0 25 9 8 1 1 0 8 0
ipqe 40 216 0 214 9 8 1 1 0 8 0
inpcb 376 25512 0 25481 308 303 5 21 0 8 0
nd6 136 118 0 87 5 3 2 2 0 8 0
kcovpl 48 29 0 21 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1558 0 1087 36 6 30 34 0 8 0
art_table 32 1559 0 1087 5 0 5 5 0 8 0
art_node 16 378 0 270 1 0 1 1 0 8 0
sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0
semupl 112 5 0 5 1 1 0 1 0 8 0
semapl 112 4186 0 4176 1 0 1 1 0 8 0
shmpl 112 128 0 0 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 34985 0 33524 92 0 92 92 0 8 0
ffsino 272 34985 0 33524 98 0 98 98 0 8 0
nchpl 144 66420 0 64781 63 0 63 63 0 8 0
uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0
vnodes 216 5926 0 0 330 0 330 330 0 8 0
namei 1024 211344 0 211344 5 4 1 2 0 8 1
percpumem 16 67 0 21 1 0 1 1 0 8 0
kstatmem 264 64 0 42 2 0 2 2 0 8 0
scxspl 216 183006 0 183006 51 50 1 8 1 8 1
plimitpl 152 2560 0 2537 27 26 1 2 0 8 0
sigapl 424 23343 0 23292 7 0 7 7 0 8 0
futexpl 64 201324 0 201323 4 3 1 1 0 8 0
knotepl 120 795 0 0 12 3 9 11 0 8 0
kqueuepl 216 5448 0 5440 83 82 1 6 0 8 0
pipepl 320 4248 0 4220 123 120 3 14 0 8 0
fdescpl 496 23324 0 23292 7 2 5 6 0 8 0
pool(0xffffffff82e04248:fdescpl): page inconsistency: page 0xfffffd806bb43000; 0 on list, 7 missing, 8 items per page
filepl 152 156389 0 156149 237 223 14 21 0 8 0
lockfpl 104 3084 0 3081 3 2 1 2 0 8 0
lockfspl 48 802 0 799 1 0 1 1 0 8 0
sessionpl 144 44 0 28 1 0 1 1 0 8 0
pgrppl 48 1950 0 1934 1 0 1 1 0 8 0
ucredpl 104 34890 0 34872 1 0 1 1 0 8 0
zombiepl 144 23292 0 23292 1 0 1 1 0 8 1
processpl 1136 23344 0 23292 5 0 5 5 0 8 0
procpl 680 64591 0 64521 35 27 8 9 0 8 1
sosppl 168 511 0 511 25 25 0 1 0 8 0
sockpl 488 49095 0 49047 757 750 7 35 0 8 0
mcl64k 65536 17 0 0 3 0 3 3 0 8 0
mcl16k 16384 33 0 0 3 0 3 3 0 8 0
mcl12k 12288 25 0 0 2 0 2 2 0 8 0
mcl9k 9216 25 0 0 2 0 2 2 0 8 0
mcl8k 8192 51 0 0 3 0 3 3 0 8 0
mcl4k 4096 117 0 0 4 1 3 4 0 8 0
mcl2k2 2112 17 0 0 2 0 2 2 0 8 0
mcl2k 2048 520 0 0 32 16 16 32 0 8 0
mtagpl 96 5 0 0 1 0 1 1 0 8 0
mbufpl 256 4065 0 0 216 0 216 216 0 8 0
bufpl 288 41831 0 35513 452 0 452 452 0 8 0
anonpl 24 2297302 0 2285363 322 225 97 122 0 186 0
amapchunkpl 152 727741 0 726946 138 100 38 51 0 158 0
amappl16 200 52147 0 51829 319 301 18 43 0 8 0
amappl15 192 13 0 13 2 2 0 1 0 8 0
amappl14 184 210 0 198 2 1 1 2 0 8 0
amappl13 176 59 0 58 2 1 1 1 0 8 0
amappl12 168 24266 0 24229 3 0 3 3 0 8 0
amappl11 160 57 0 46 1 0 1 1 0 8 0
amappl10 152 82 0 67 1 0 1 1 0 8 0
amappl9 144 304 0 304 19 18 1 1 0 8 1
amappl8 136 863 0 723 6 0 6 6 0 8 0
amappl7 128 320 0 294 2 0 2 2 0 8 0
amappl6 120 708 0 695 1 0 1 1 0 8 0
amappl5 112 490 0 482 1 0 1 1 0 8 0
amappl4 104 877 0 850 2 1 1 2 0 8 0
amappl3 96 141965 0 141887 22 18 4 4 0 8 0
amappl2 88 25530 0 25451 3 1 2 3 0 8 0
amappl1 80 89733 0 89218 22 9 13 22 0 8 0
amappl 88 227762 0 227533 8 0 8 8 0 92 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 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 72 130 0 0 3 0 3 3 0 8 0
uaddrrnd 24 23324 0 23292 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 23324 0 23292 1 0 1 1 0 8 0
vmmpekpl 168 179777 0 179717 4 0 4 4 0 8 0
vmmpepl 168 1343330 0 1341019 419 293 126 139 0 357 8
vmsppl 448 23323 0 23292 5 0 5 5 0 8 0
rwobjpl 56 337835 0 330388 132 22 110 113 0 8 0
pdppl 4096 46655 0 46584 624 543 81 93 0 8 10
pvpl 32 41441 0 0 335 0 335 335 0 265 0
pmappl 248 23323 0 23292 4 1 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1856 0 835 30 0 30 30 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp
x86_ipi_db(ffffffff82ccaff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff80002d6cad20) at syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002d6cad20) at syscall+0x51a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a8b9dd68cf0, count: 6
ddb{0}> trace
x86_ipi_db(ffffffff82ccaff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline]
__mp_lock(ffffffff82da8bc0) at __mp_lock+0x122 sys/kern/kern_lock.c:147
syscall(ffff80002d6cad20) at syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff80002d6cad20) at syscall+0x51a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a8b9dd68cf0, count: -9
ddb{0}> machine ddbcpu 1
Stopped at db_enter+0x1c: addq $0x8,%rsp
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828e7346) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82e04248,9,ffff800033f63f68) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82e04248,9) at pool_get+0xed sys/kern/subr_pool.c:582
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 fdinit sys/kern/kern_descrip.c:1067 [inline]
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 sys/kern/kern_descrip.c:1106
process_new(ffff80002a232a90,ffff8000ffff1f28,1) at process_new+0x390 sys/kern/kern_fork.c:273
fork1(ffff80002a231ff0,1,ffffffff817148b0,0,ffff800033f64190,0) at fork1+0x318 sys/kern/kern_fork.c:399
syscall(ffff800033f64240) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff800033f64240) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77b60136d000, count: 6
ddb{1}> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff828e7346) at panic+0x17b sys/kern/subr_prf.c:198
pool_do_get(ffffffff82e04248,9,ffff800033f63f68) at pool_do_get+0x484 sys/kern/subr_pool.c:739
pool_get(ffffffff82e04248,9) at pool_get+0xed sys/kern/subr_pool.c:582
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 fdinit sys/kern/kern_descrip.c:1067 [inline]
fdcopy(ffff8000ffff1f28) at fdcopy+0x48 sys/kern/kern_descrip.c:1106
process_new(ffff80002a232a90,ffff8000ffff1f28,1) at process_new+0x390 sys/kern/kern_fork.c:273
fork1(ffff80002a231ff0,1,ffffffff817148b0,0,ffff800033f64190,0) at fork1+0x318 sys/kern/kern_fork.c:399
syscall(ffff800033f64240) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline]
syscall(ffff800033f64240) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x77b60136d000, count: -9