�uvm_fault(0xfffffb006ceb05d8, 0x798e264d, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at uid_find+0x68: cmpl %r15d,0x10(%r14)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
107204 69762 0 0x1000 0x4080000 0 syz-executor
* 51340 1935 0 0x2 0 1K syz-executor
uid_find(0) at uid_find+0x68 sys/kern/kern_proc.c:131
chgproccnt(0,ffffffff) at chgproccnt+0x39 sys/kern/kern_proc.c:-1
process_zap(ffff8000377e5838) at process_zap+0x137 sys/kern/kern_exit.c:883
dowait6(ffff800045ff2fa8,0,0,ffff800034ba52fc,25,0,5ca5977c595a47dc,ffff800034ba5430) at dowait6+0xaf2 sys/kern/kern_exit.c:578
sys_wait4(ffff800045ff2fa8,ffff800034ba5430,ffff800034ba5380) at sys_wait4+0x13a sys/kern/kern_exit.c:719
syscall(ffff800034ba5430) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800034ba5430) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x714b19ef4eb0, count: 8
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: uvm_fault(0xfffffb006ceb05d8, 0x798e264d, 0, 1) -> e
ddb{1}> show kasan
No such command
ddb{1}> trace
uid_find(0) at uid_find+0x68 sys/kern/kern_proc.c:131
chgproccnt(0,ffffffff) at chgproccnt+0x39 sys/kern/kern_proc.c:-1
process_zap(ffff8000377e5838) at process_zap+0x137 sys/kern/kern_exit.c:883
dowait6(ffff800045ff2fa8,0,0,ffff800034ba52fc,25,0,5ca5977c595a47dc,ffff800034ba5430) at dowait6+0xaf2 sys/kern/kern_exit.c:578
sys_wait4(ffff800045ff2fa8,ffff800034ba5430,ffff800034ba5380) at sys_wait4+0x13a sys/kern/kern_exit.c:719
syscall(ffff800034ba5430) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800034ba5430) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x714b19ef4eb0, count: -7
ddb{1}> show registers
rdi 0
rsi 0
rbp 0xffff800034ba50f0
rbx 0
rdx 0
rcx 0xffff800045ff2fa8
rax 0xffff80002999dff0
r8 0x25
r9 0
r10 0
r11 0xff7923ba49a85743
r12 0xffff800000023400
r13 0
r14 0x798e263d
r15 0
rip 0xffffffff81eb0b78 uid_find+0x68
cs 0x8
rflags 0x10202 __ALIGN_SIZE+0xf202
rsp 0xffff800034ba50b0
ss 0x10
uid_find+0x68: cmpl %r15d,0x10(%r14)
ddb{1}> show proc
PROC (syz-executor) tid=51340 pid=1935 tcnt=1 stat=onproc
flags process=2<EXEC> proc=0
runpri=32, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000357b62b8,0xffff80003339aa98
process=0xffff80002a380018 user=0xffff800034ba0000, vmspace=0xfffffb006ceb05d8
estcpu=36, cpticks=13, pctcpu=0.0, user=1, sys=12, intr=0
ddb{1}> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
14995 480629 41302 0 2 0 0 syz-executor
14995 285267 41302 0 2 0 0x4000000 syz-executor
74746 362354 98597 0 2 0 0 syz-executor
25438 277948 95284 0 2 0 0 syz-executor
25438 8889 95284 0 2 0 0x4000000 syz-executor
69762 78452 63630 0 3 0x1000 0x2000 suspend syz-executor
69762 107204 63630 0 7 0x1000 0x4080000 syz-executor
64025 61519 8619 0 2 0x2 0 syz-executor
63630 231173 8619 0 3 0x2 0x80 nanoslp syz-executor
95284 350615 8619 0 3 0x2 0x80 nanoslp syz-executor
98597 55317 8619 0 2 0x2 0 syz-executor
41302 27621 8619 0 3 0x2 0x80 nanoslp syz-executor
* 1935 51340 8619 0 7 0x2 0 syz-executor
93218 320379 63133 0 3 0x100002 0x80 sbwait ndp
63133 172733 99258 0 3 0x100002 0x88 sigsusp sh
99258 470136 8619 0 3 0x2 0x80 wait syz-executor
72560 354389 0 0 3 0x14000 0x200 acct acct
8619 34988 28746 0 3 0x2 0x80 wait syz-executor
28746 21076 54504 0 3 0x100002 0x88 sigsusp ksh
54504 102369 11978 0 3 0x10 0x88 kqread sshd-session
11978 158649 56054 0 3 0x12 0x80 kqread sshd-session
82540 289304 1 0 3 0x100003 0x80 ttyin getty
56054 235825 1 0 3 0 0x88 kqread sshd
51403 382207 8262 74 3 0x1100012 0x80 bpf pflogd
8262 211141 1 0 3 0 0x80 sbwait pflogd
70224 286034 28262 73 3 0x1100010 0x80 kqread syslogd
28262 420229 1 0 3 0x100002 0x80 sbwait syslogd
67882 463290 1 0 3 0x100000 0x80 kqread resolvd
81692 301709 18559 77 3 0x100012 0x80 kqread dhcpleased
65703 156780 18559 77 3 0x100012 0x80 kqread dhcpleased
18559 462949 1 0 3 0 0x80 kqread dhcpleased
95981 17049 0 0 3 0x14000 0x200 bored smr
60985 219991 0 0 2 0x14000 0x200 zerothread
91785 160901 0 0 3 0x14000 0x200 aiodoned aiodoned
82849 8713 0 0 3 0x14000 0x200 syncer update
4761 345903 0 0 3 0x14000 0x200 cleaner cleaner
27897 2846 0 0 3 0x14000 0x200 reaper reaper
44652 159546 0 0 3 0x14000 0x200 pgdaemon pagedaemon
38991 519646 0 0 3 0x14000 0x200 bored viomb
9448 311874 0 0 3 0x14000 0x40000200 acpi0 acpi0
48089 367406 0 0 3 0x14000 0x40000200 idle1
33521 174172 0 0 3 0x14000 0x200 bored softnet1
68389 449 0 0 3 0x14000 0x200 bored softnet0
52474 75950 0 0 3 0x14000 0x200 bored systqmp
97732 40732 0 0 3 0x14000 0x200 bored systq
74875 480600 0 0 3 0x14000 0x200 tmoslp softclockmp
55462 423379 0 0 3 0x14000 0x40000200 tmoslp softclock
23556 208799 0 0 3 0x14000 0x40000200 idle0
1 250906 0 0 3 0x80002 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb{1}> show all locks
Process 25438 (syz-executor) thread 0xffff800045ff3770 (8889)
exclusive rwlock vmmaplk r = 0 (0xfffffb006d5d58c8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880
#3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693
#4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:194
#6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:648
#7 recall_trap+0x8
Process 69762 (syz-executor) thread 0xffff80003339a028 (107204)
exclusive rrwlock inode r = 0 (0xfffffb000dfed6c0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vget+0x2a2 sys/kern/vfs_subr.c:692
#6 cache_lookup+0x351 sys/kern/vfs_cache.c:222
#7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160
#8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#9 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580
#10 namei+0x7c5 sys/kern/vfs_lookup.c:250
#11 ptm_vn_open+0x40 sys/kern/tty_pty.c:1014
#12 ptmioctl+0x8a0 sys/kern/tty_pty.c:1179
#13 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#14 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#15 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#16 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#16 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#17 Xsyscall+0x128
Process 64025 (syz-executor) thread 0xffff80003339a7f0 (61519)
exclusive rwlock fdlock r = 0 (0xffff800034baf720)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 doopenat+0x179 sys/kern/vfs_syscalls.c:1130
#3 sys_open+0x59 sys/kern/vfs_syscalls.c:1065
#4 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#4 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#5 Xsyscall+0x128
Process 1935 (syz-executor) thread 0xffff800045ff2fa8 (51340)
exclusive rwlock uidinfo r = 0 (0xffffffff83af31c0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 uid_find+0x52 sys/kern/kern_proc.c:129
#3 chgproccnt+0x39 sys/kern/kern_proc.c:-1
#4 process_zap+0x137 sys/kern/kern_exit.c:883
#5 dowait6+0xaf2 sys/kern/kern_exit.c:578
#6 sys_wait4+0x13a sys/kern/kern_exit.c:719
#7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
#8 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83b1e3c0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline]
#1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:791
#2 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11090 12094K 12216K 166960K 12762 0
pcb 17 14K 16K 166960K 136 0
rtable 257 19K 19K 166960K 3861 0
pf 40 19K 26K 166960K 333 0
ifaddr 40 8K 8K 166960K 518 0
ifgroup 55 2K 2K 166960K 535 0
sysctl 1 1K 9K 166960K 7 0
counters 70 37K 37K 166960K 324 0
ioctlops 0 0K 4K 166960K 1642 0
iov 0 0K 16K 166960K 10 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1383 87K 87K 166960K 3081 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 7 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 25 0
dirhash 15 2K 2K 166960K 24 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 16 57K 97K 166960K 2162 0
proc 72 115K 180K 166960K 3774 0
subproc 63 3K 4K 166960K 1098 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 29 0
in_multi 88 5K 6K 166960K 1362 0
ether_multi 1 0K 0K 166960K 3 0
mrt 1 0K 0K 166960K 51 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 223 996K 996K 166960K 223 0
exec 0 0K 1K 166960K 1893 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 217 169K 181K 166960K 15308 0
UVM aobj 10 2K 2K 166960K 11 0
pinsyscall 42 84K 113K 166960K 6312 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 9 0
NDP 12 0K 2K 166960K 378 0
temp 34 9114K 9134K 166960K 35859 0
kqueue 13 20K 26K 166960K 61 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 28 0 0 1 0 1 1 0 8 0
rtpcb 120 344 0 340 3 2 1 3 0 8 0
rtentry 176 1375 0 1274 6 1 5 6 0 8 0
unpcb 144 539 0 520 4 3 1 4 0 8 0
syncache 336 6 0 6 2 2 0 1 0 8 0
tcpcb 736 390 0 386 7 6 1 7 0 8 0
arp 136 247 0 230 1 0 1 1 0 8 0
inpcb 328 1096 0 1089 14 12 2 7 0 8 1
nd6 152 372 0 351 2 1 1 2 0 8 0
pkpcb 40 4 0 4 2 2 0 1 0 8 0
kcovpl 48 122 0 115 1 0 1 1 0 8 0
ppxss 1192 10 0 10 2 2 0 1 0 8 0
pppxif 1576 1 0 1 1 1 0 1 0 8 0
pffrag 232 3 0 1 1 0 1 1 0 482 0
pffrnode 88 3 0 1 1 0 1 1 0 8 0
pffrent 40 5 0 3 1 0 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 4 0 1 1 0 1 1 0 8 0
pfanchor 1288 7 0 3 1 0 1 1 0 8 0
pftag 88 3 0 0 1 0 1 1 0 8 0
pfstitem 24 76 0 31 1 0 1 1 0 8 0
pfstkey 128 76 0 31 2 0 2 2 0 8 0
pfstate 448 76 0 31 6 0 6 6 0 8 0
pfrule 1360 29 0 22 2 1 1 2 0 8 0
art_heap8 4096 3 0 1 2 0 2 2 0 8 0
art_heap4 256 5561 0 5133 38 11 27 30 0 8 0
art_table 40 5564 0 5134 6 1 5 5 0 8 0
art_node 32 1375 0 1283 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0
semapl 72 16 0 6 1 0 1 1 0 8 0
shmpl 112 8 0 1 1 0 1 1 0 8 0
dirhash 1024 25 0 6 3 0 3 3 0 8 0
dino2pl 256 2235 0 516 108 0 108 108 0 8 0
ffsino 296 2235 0 516 133 0 133 133 0 8 0
nchpl 144 2877 0 725 80 0 80 80 0 8 0
rtmask 32 3 0 3 2 2 0 1 0 8 0
vnodes 216 3964 0 0 221 0 221 221 0 8 0
namei 1024 24569 0 24569 6 4 2 3 0 8 2
percpumem 16 178 0 127 1 0 1 1 0 8 0
pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0
kstatmem 264 273 0 244 4 2 2 3 0 8 0
scsiplug 72 3 0 3 2 2 0 1 0 8 0
scxspl 216 9786 0 9786 11 10 1 8 1 8 1
plimitpl 152 368 0 350 1 0 1 1 0 8 0
sigapl 424 2259 0 2211 8 1 7 7 0 8 0
knotepl 120 306 0 0 10 0 10 10 0 8 0
kqueuepl 224 97 0 88 1 0 1 1 0 8 0
pipepl 344 497 0 469 3 0 3 3 0 8 0
fdescpl 528 2242 0 2212 3 0 3 3 0 8 0
filepl 160 8792 0 8585 24 14 10 18 0 8 0
lockfpl 104 606 0 604 1 0 1 1 0 8 0
lockfspl 48 92 0 90 1 0 1 1 0 8 0
sessionpl 144 154 0 145 1 0 1 1 0 8 0
pgrppl 48 281 0 264 1 0 1 1 0 8 0
ucredpl 104 700 0 686 1 0 1 1 0 8 0
zombiepl 144 2477 0 2474 1 0 1 1 0 8 0
processpl 1232 2259 0 2211 6 1 5 5 0 8 0
procpl 664 2996 0 2945 6 0 6 6 0 8 0
sockpl 752 1994 0 1963 24 19 5 11 0 8 1
mcl64k 65536 5 0 0 1 0 1 1 0 8 0
mcl16k 16384 3 0 0 1 0 1 1 0 8 0
mcl12k 12288 1 0 0 1 0 1 1 0 8 0
mcl9k128 9344 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 3 0 0 1 0 1 1 0 8 0
mcl4k 4096 125 0 0 16 0 16 16 0 8 0
mcl2k2 2112 1 0 0 1 0 1 1 0 8 0
mcl2k 2048 32 0 0 4 0 4 4 0 8 0
mextrefs 64 40 0 0 1 0 1 1 0 8 0
mtagpl 96 4 0 0 1 0 1 1 0 8 0
mbufpl 256 239 0 0 15 0 15 15 0 8 0
bufpl 272 3177 0 107 205 0 205 205 0 8 0
anonpl 32 3700 0 0 30 0 30 30 0 247 0
amapchunkpl 152 40158 0 39744 33 13 20 27 0 158 2
amappl16 200 1892 0 1875 5 3 2 5 0 8 0
amappl15 192 8 0 8 2 2 0 1 0 8 0
amappl14 184 1810 0 1808 1 0 1 1 0 8 0
amappl13 176 351 0 338 1 0 1 1 0 8 0
amappl12 168 2958 0 2928 2 0 2 2 0 8 0
amappl11 160 23 0 22 1 0 1 1 0 8 0
amappl10 152 63 0 49 1 0 1 1 0 8 0
amappl9 144 272 0 272 1 1 0 1 0 8 0
amappl8 136 558 0 555 1 0 1 1 0 8 0
amappl7 128 375 0 361 1 0 1 1 0 8 0
amappl6 120 1296 0 1293 1 0 1 1 0 8 0
amappl5 112 103 0 93 1 0 1 1 0 8 0
amappl4 104 680 0 658 1 0 1 1 0 8 0
amappl3 96 7847 0 7763 3 0 3 3 0 8 0
amappl2 88 1934 0 1856 2 0 2 2 0 8 0
amappl1 80 26705 0 26081 18 3 15 16 0 8 0
amappl 88 12584 0 12445 5 1 4 5 0 92 0
uvmvnodes 80 108 0 0 3 0 3 3 0 8 0
dma8192 8192 1 0 1 1 1 0 1 0 8 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 128 255 0 255 3 3 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 10 0 1 1 0 1 1 0 8 0
uaddrrnd 24 2242 0 2212 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 2242 0 2212 1 0 1 1 0 8 0
vmmpekpl 168 18308 0 18260 5 1 4 4 0 8 0
vmmpepl 168 151297 0 149475 99 14 85 90 0 357 1
vmsppl 488 2241 0 2212 6 1 5 5 0 8 0
rwobjpl 80 42940 0 41888 27 3 24 25 0 8 0
pdppl 4096 4491 0 4424 238 167 71 87 0 8 4
pvpl 32 9981 0 0 82 1 81 81 0 265 0
pmappl 256 2241 0 2212 4 1 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 663 0 195 14 0 14 14 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83989ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x199 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83b1dbc0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
pool_get(ffffffff83af38c0,9) at pool_get+0x27e sys/kern/subr_pool.c:595
crget() at crget+0x36 sys/kern/kern_prot.c:948
ptm_vn_open(ffff80002a348388) at ptm_vn_open+0x9f sys/kern/tty_pty.c:1025
ptmioctl(5100,40287401,ffff80002a3486a0,3,ffff80003339a028) at ptmioctl+0x8a0 sys/kern/tty_pty.c:1179
VOP_IOCTL(fffffb006eed3b00,40287401,ffff80002a3486a0,3,fffffb00097fd138,ffff80003339a028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
end trace frame: 0xffff80002a348690, count: 0
ddb{0}> trace
x86_ipi_db(ffffffff83989ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x192 sys/kern/kern_lock.c:173
softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83
dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862
Xsoftclock() at Xsoftclock+0x27
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83b1dbc0) at __mp_lock+0x199 sys/kern/kern_lock.c:173
__mp_acquire_count(ffffffff83b1dbc0,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
pool_get(ffffffff83af38c0,9) at pool_get+0x27e sys/kern/subr_pool.c:595
crget() at crget+0x36 sys/kern/kern_prot.c:948
ptm_vn_open(ffff80002a348388) at ptm_vn_open+0x9f sys/kern/tty_pty.c:1025
ptmioctl(5100,40287401,ffff80002a3486a0,3,ffff80003339a028) at ptmioctl+0x8a0 sys/kern/tty_pty.c:1179
VOP_IOCTL(fffffb006eed3b00,40287401,ffff80002a3486a0,3,fffffb00097fd138,ffff80003339a028) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffb0065586b50,40287401,ffff80002a3486a0,ffff80003339a028) at vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
sys_ioctl(ffff80003339a028,ffff80002a348880,ffff80002a3487d0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80002a348880) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a348880) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x854ebddd670, count: -18
ddb{0}> machine ddbcpu 1
Stopped at uid_find+0x68: cmpl %r15d,0x10(%r14)
uid_find(0) at uid_find+0x68 sys/kern/kern_proc.c:131
chgproccnt(0,ffffffff) at chgproccnt+0x39 sys/kern/kern_proc.c:-1
process_zap(ffff8000377e5838) at process_zap+0x137 sys/kern/kern_exit.c:883
dowait6(ffff800045ff2fa8,0,0,ffff800034ba52fc,25,0,5ca5977c595a47dc,ffff800034ba5430) at dowait6+0xaf2 sys/kern/kern_exit.c:578
sys_wait4(ffff800045ff2fa8,ffff800034ba5430,ffff800034ba5380) at sys_wait4+0x13a sys/kern/kern_exit.c:719
syscall(ffff800034ba5430) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800034ba5430) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x714b19ef4eb0, count: 8
ddb{1}> trace
uid_find(0) at uid_find+0x68 sys/kern/kern_proc.c:131
chgproccnt(0,ffffffff) at chgproccnt+0x39 sys/kern/kern_proc.c:-1
process_zap(ffff8000377e5838) at process_zap+0x137 sys/kern/kern_exit.c:883
dowait6(ffff800045ff2fa8,0,0,ffff800034ba52fc,25,0,5ca5977c595a47dc,ffff800034ba5430) at dowait6+0xaf2 sys/kern/kern_exit.c:578
sys_wait4(ffff800045ff2fa8,ffff800034ba5430,ffff800034ba5380) at sys_wait4+0x13a sys/kern/kern_exit.c:719
syscall(ffff800034ba5430) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800034ba5430) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x714b19ef4eb0, count: -7