uvm_fault(0xfffffd806c2ac8a0, 0x8, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at fifo_write+0x6e: movq 0x8(%rax),%r15
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*418319 85490 32767 0x10 0x4000000 0 syz-executor
140239 52265 32767 0x10 0 1 syz-executor
fifo_write(ffff8000337bf7a0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281
VOP_WRITE(fffffd8052b49060,ffff8000337bf838,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8052b49060,ffff80002a081000,100,0,1,e62b56ffb2d547a1,ffff8000337bf960,fffffd8052b49060,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324
ufs_symlink(ffff8000337bf960) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309
VOP_SYMLINK(fffffd807d6377d8,ffff8000337bfae0,ffff8000337bfb10,ffff8000337bfa10,ffff80002a081000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432
dosymlinkat(ffff800031b86f88,200010c0,4,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806
syscall(ffff8000337bfc90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000337bfc90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7fdc3dc4030, count: 7
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
*cpu0: uvm_fault(0xfffffd806c2ac8a0, 0x8, 0, 1) -> e
ddb{0}> trace
fifo_write(ffff8000337bf7a0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281
VOP_WRITE(fffffd8052b49060,ffff8000337bf838,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8052b49060,ffff80002a081000,100,0,1,e62b56ffb2d547a1,ffff8000337bf960,fffffd8052b49060,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324
ufs_symlink(ffff8000337bf960) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309
VOP_SYMLINK(fffffd807d6377d8,ffff8000337bfae0,ffff8000337bfb10,ffff8000337bfa10,ffff80002a081000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432
dosymlinkat(ffff800031b86f88,200010c0,4,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806
syscall(ffff8000337bfc90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000337bfc90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7fdc3dc4030, count: -8
ddb{0}> show registers
rdi 0xfffffd8052b49060
rsi 0x1af7 __ALIGN_SIZE+0xaf7
rbp 0xffff8000337bf790
rbx 0xfffffd8052b49060
rdx 0xffff80002a12b000
rcx 0x1af6 __ALIGN_SIZE+0xaf6
rax 0
r8 0
r9 0x1
r10 0xffffffff83425ff0 cpu_info_full_primary+0x1ff0
r11 0x33a756fe6ca1b56e
r12 0x4000 __ALIGN_SIZE+0x3000
r13 0xffff8000337bf838
r14 0xffff8000337bf7a0
r15 0x1
rip 0xffffffff82e22ede fifo_write+0x6e
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff8000337bf760
ss 0
fifo_write+0x6e: movq 0x8(%rax),%r15
ddb{0}> show proc
PROC (syz-executor) tid=418319 pid=85490 tcnt=2 stat=onproc
flags process=10<SUGID> proc=4000000<THREAD>
runpri=17, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff800031b87c30,0xffff800029fe79b0
process=0xffff80002dd70db0 user=0xffff8000337ba000, vmspace=0xfffffd806c2ac8a0
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
19020 452356 42641 32767 2 0x10 syz-executor
85490 181791 52265 32767 2 0x10 syz-executor
*85490 418319 52265 32767 7 0x4000010 syz-executor
79054 220423 84081 32767 2 0x10 syz-executor
79054 208543 84081 32767 3 0x4000090 kqsel syz-executor
79054 201700 84081 32767 3 0x4000090 fsleep syz-executor
79054 358623 84081 32767 3 0x4000090 fsleep syz-executor
62827 424646 49743 32767 2 0x490 syz-executor
62827 433015 49743 32767 3 0x4000090 ttyin syz-executor
62827 405821 49743 32767 3 0x4000090 fsleep syz-executor
88588 333377 72120 32767 2 0x10 syz-executor
88588 429713 72120 32767 3 0x4000090 kqsel syz-executor
88588 465163 72120 32767 3 0x4000090 fsleep syz-executor
88588 198487 72120 32767 3 0x4000090 fsleep syz-executor
70897 509338 39551 32767 2 0x10 syz-executor
70897 459073 39551 32767 3 0x4000090 sbwait syz-executor
70897 129552 39551 32767 3 0x4000090 fsleep syz-executor
37069 52063 63221 32767 2 0x10 syz-executor
63221 515236 74716 0 3 0x82 wait syz-executor
42641 457140 31474 32767 2 0x490 syz-executor
31474 285513 74716 0 3 0x82 wait syz-executor
32974 46383 1291 32767 2 0x10 syz-executor
1291 294372 74716 0 3 0x82 wait syz-executor
84081 148516 76766 32767 2 0x490 syz-executor
76766 416406 74716 0 3 0x82 wait syz-executor
39551 323490 91498 32767 2 0x10 syz-executor
91498 191041 74716 0 3 0x82 wait syz-executor
49743 146067 74721 32767 2 0x10 syz-executor
74721 327462 74716 0 3 0x82 wait syz-executor
52265 140239 88140 32767 7 0x10 syz-executor
88140 287014 74716 0 3 0x82 wait syz-executor
72120 380272 32360 32767 2 0x10 syz-executor
32360 91441 74716 0 3 0x82 wait syz-executor
400 196338 8936 0 3 0x100082 sbwait arp
8936 374556 986 0 3 0x10008a sigsusp sh
986 479249 1 0 3 0x80 wait syz-executor
35421 471696 0 0 3 0x14200 bored sosplice
74716 307357 65673 0 2 0x2 syz-executor
65673 371757 8642 0 3 0x10008a sigsusp ksh
8642 430151 91653 0 3 0x98 kqread sshd-session
91653 431565 18281 0 3 0x92 kqread sshd-session
58774 259962 1 0 3 0x100083 ttyin getty
18281 202667 1 0 3 0x88 kqread sshd
53412 47395 28299 73 3 0x1100090 kqread syslogd
28299 32799 1 0 3 0x100082 sbwait syslogd
69066 515177 1 0 3 0x100080 kqread resolvd
21024 466224 53100 77 3 0x100092 kqread dhcpleased
98888 29454 53100 77 3 0x100092 kqread dhcpleased
53100 204580 1 0 3 0x80 kqread dhcpleased
70239 335773 0 0 3 0x14200 bored smr
69151 265379 0 0 2 0x14200 zerothread
75143 329720 0 0 3 0x14200 aiodoned aiodoned
69835 165950 0 0 3 0x14200 syncer update
74386 367394 0 0 3 0x14200 cleaner cleaner
81278 97545 0 0 3 0x14200 reaper reaper
34612 252751 0 0 3 0x14200 pgdaemon pagedaemon
1509 458016 0 0 3 0x14200 bored viomb
17076 278494 0 0 3 0x40014200 acpi0 acpi0
86697 359393 0 0 3 0x40014200 idle1
45402 420405 0 0 3 0x14200 bored softnet3
59957 364881 0 0 3 0x14200 bored softnet2
45942 239791 0 0 3 0x14200 bored softnet1
4660 281544 0 0 3 0x14200 bored softnet0
67836 344171 0 0 3 0x14200 bored systqmp
32600 402310 0 0 3 0x14200 bored systq
3267 464750 0 0 3 0x14200 tmoslp softclockmp
15 284011 0 0 2 0x40014200 softclock
29742 440672 0 0 3 0x40014200 idle0
1 278886 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 85490 (syz-executor) thread 0xffff800031b86f88 (418319)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a30b8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 __mp_acquire_count+0x58
#2 mi_switch+0x658 sys/kern/sched_bsd.c:460
#3 sleep_finish+0x219 sys/kern/kern_synch.c:416
#4 biowait+0xc1 sys/kern/vfs_bio.c:1254
#5 bwrite+0x2e2 sys/kern/vfs_bio.c:766
#6 VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646
#7 ufs_direnter+0x7d1 sys/ufs/ufs/ufs_lookup.c:833
#8 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764
#9 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293
#10 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432
#11 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806
#12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#13 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd805a513b40)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#9 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728
#10 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293
#11 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432
#12 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
Process 37069 (syz-executor) thread 0xffff800029fe7208 (52063)
exclusive rrwlock inode r = 0 (0xfffffd8069986c48)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vget+0x2bd sys/kern/vfs_subr.c:676
#6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201
#8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566
#11 namei+0x7aa sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd80699861a8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
Process 32974 (syz-executor) thread 0xffff800033996ce0 (46383)
exclusive rrwlock inode r = 0 (0xfffffd80699866f8)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230
#6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3100
#10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd805166dc48)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 rw_enter+0x41b sys/kern/kern_rwlock.c:309
#2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464
#3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564
#5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418
#6 namei+0x7aa sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3085
#8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#9 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10216 10029K 10036K 166960K 12868 0
pcb 17 24K 26K 166960K 27 0
rtable 250 7K 7K 166960K 17496 0
pf 31 16K 16K 166960K 1090 0
ifaddr 42 15K 18K 166960K 2144 0
ifgroup 50 2K 2K 166960K 2157 0
sysctl 4 1K 5K 166960K 19 0
counters 64 36K 36K 166960K 1112 0
ioctlops 0 0K 2K 166960K 971 0
iov 0 0K 32K 166960K 1947 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1468 92K 92K 166960K 14129 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 9K 166960K 433 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 988 0
dirhash 21 4K 5K 166960K 471 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 27 101K 169K 166960K 27454 0
sigio 1 0K 0K 166960K 788 0
proc 56 78K 176K 166960K 17408 0
subproc 117 7K 13K 166960K 8437 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 3 0K 0K 166960K 6778 0
in_multi 102 7K 7K 166960K 6834 0
ether_multi 3 0K 0K 166960K 137 0
mrt 1 0K 0K 166960K 6 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 271 1208K 1208K 166960K 271 0
exec 0 0K 1K 166960K 11244 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 281 83K 140K 166960K 225605 0
UVM aobj 131 8K 8K 166960K 138 0
pinsyscall 49 98K 134K 166960K 42000 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 1K 166960K 1796 0
NDP 11 0K 2K 166960K 1592 0
temp 79 6824K 6952K 166960K 201018 0
kqueue 13 20K 36K 166960K 3705 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> 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 3680 0 3675 21 20 1 5 0 8 0
rtentry 112 6096 0 5978 13 9 4 4 0 8 0
unpcb 144 25483 0 25465 138 135 3 10 0 8 1
syncache 336 119 0 119 39 38 1 1 0 8 1
tcpqe 32 48 0 48 25 24 1 1 0 8 1
tcpcb 808 14207 0 14194 187 179 8 15 0 8 6
arp 120 1078 0 1059 1 0 1 1 0 8 0
ipq 40 100 0 97 4 3 1 1 0 8 0
ipqe 40 931 0 928 4 3 1 1 0 8 0
inpcb 336 35464 0 35444 225 214 11 19 0 8 8
ip6q 72 4 0 4 4 4 0 1 0 8 0
ip6af 40 8 0 8 4 4 0 1 0 8 0
nd6 136 1821 0 1790 5 3 2 2 0 8 0
kcovpl 48 649 0 640 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 24835 0 24335 214 182 32 33 0 8 0
art_table 32 24836 0 24335 9 4 5 5 0 8 0
art_node 16 6095 0 5987 1 0 1 1 0 8 0
sysvmsgpl 40 9 0 6 1 0 1 1 0 8 0
semapl 112 982 0 972 1 0 1 1 0 8 0
shmpl 112 135 0 7 4 0 4 4 0 8 0
dirhash 1024 338 0 307 12 8 4 5 0 8 0
dino2pl 256 33521 0 30277 207 4 203 203 0 8 0
ffsino 272 33521 0 30277 217 0 217 217 0 8 0
nchpl 144 61088 0 58111 112 1 111 111 0 8 0
uvmvnodes 80 10456 0 0 214 0 214 214 0 8 0
vnodes 216 10456 0 0 581 0 581 581 0 8 0
namei 1024 273691 0 273689 57 56 1 2 0 8 0
percpumem 16 570 0 524 1 0 1 1 0 8 0
kstatmem 264 1070 0 1048 2 0 2 2 0 8 0
scxspl 216 324299 0 324299 78 75 3 8 1 8 3
plimitpl 152 9343 0 9317 2 0 2 2 0 8 0
sigapl 424 26443 0 26385 23 15 8 9 0 8 0
futexpl 64 295884 0 295878 30 29 1 1 0 8 0
knotepl 120 1439 0 0 19 1 18 19 0 8 0
kqueuepl 216 8500 0 8489 82 80 2 8 0 8 1
pipepl 320 5721 0 5690 56 53 3 9 0 8 0
fdescpl 496 26424 0 26385 16 10 6 8 0 8 0
filepl 152 185994 0 185714 141 125 16 23 0 8 2
lockfpl 104 7035 0 7029 5 4 1 2 0 8 0
lockfspl 48 2187 0 2182 1 0 1 1 0 8 0
sessionpl 144 543 0 526 1 0 1 1 0 8 0
pgrppl 48 1911 0 1886 1 0 1 1 0 8 0
ucredpl 104 38487 0 38468 1 0 1 1 0 8 0
zombiepl 144 26385 0 26385 1 0 1 1 0 8 1
processpl 1160 26443 0 26385 14 8 6 6 0 8 0
procpl 648 59143 0 59074 12 5 7 7 0 8 0
srpgc 96 41 0 41 18 18 0 1 0 8 0
sosppl 168 327 0 327 32 31 1 1 0 8 1
sockpl 664 65242 0 65200 406 393 13 24 0 8 8
mcl64k 65536 19 0 0 3 0 3 3 0 8 0
mcl16k 16384 3 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 17 0 0 3 0 3 3 0 8 0
mcl4k 4096 6 0 0 1 0 1 1 0 8 0
mcl2k2 2112 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 708 0 0 30 8 22 28 0 8 0
mtagpl 96 35 0 0 1 0 1 1 0 8 0
mbufpl 256 5479 0 0 279 0 279 279 0 8 0
bufpl 280 46789 0 36333 748 1 747 747 0 8 0
anonpl 24 3272694 0 3261604 491 398 93 127 0 185 0
amapchunkpl 152 742842 0 742075 300 252 48 52 0 158 13
amappl16 200 76521 0 76220 417 389 28 51 0 8 3
amappl15 192 23 0 23 10 10 0 1 0 8 0
amappl14 184 1160 0 1148 1 0 1 1 0 8 0
amappl13 176 32 0 32 15 15 0 1 0 8 0
amappl12 168 35475 0 35435 12 9 3 3 0 8 0
amappl11 160 54 0 44 1 0 1 1 0 8 0
amappl10 152 41 0 39 1 0 1 1 0 8 0
amappl9 144 224 0 223 3 2 1 1 0 8 0
amappl8 136 75 0 73 1 0 1 1 0 8 0
amappl7 128 1139 0 1127 1 0 1 1 0 8 0
amappl6 120 5403 0 5400 1 0 1 1 0 8 0
amappl5 112 2224 0 2214 1 0 1 1 0 8 0
amappl4 104 1871 0 1852 1 0 1 1 0 8 0
amappl3 96 129738 0 129623 6 2 4 4 0 8 0
amappl2 88 27842 0 27755 3 0 3 3 0 8 0
amappl1 80 120515 0 119930 20 6 14 15 0 8 0
amappl 88 219517 0 219296 8 2 6 6 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 72 137 0 7 3 0 3 3 0 8 0
uaddrrnd 24 26424 0 26385 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 26424 0 26385 1 0 1 1 0 8 0
vmmpekpl 168 218749 0 218707 8 4 4 5 0 8 0
vmmpepl 168 1618114 0 1615688 369 247 122 136 0 357 1
vmsppl 440 26423 0 26385 15 9 6 7 0 8 0
rwobjpl 56 405340 0 393519 212 41 171 173 0 8 0
pdppl 4096 52855 0 52770 1390 1301 89 119 0 8 4
pvpl 32 53152 0 0 423 0 423 423 0 265 0
pmappl 248 26423 0 26385 8 5 3 4 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 2869 0 1992 26 0 26 26 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
fifo_write(ffff8000337bf7a0) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281
VOP_WRITE(fffffd8052b49060,ffff8000337bf838,8,fffffd807f7d34e0) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
vn_rdwr(1,fffffd8052b49060,ffff80002a081000,100,0,1,e62b56ffb2d547a1,ffff8000337bf960,fffffd8052b49060,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324
ufs_symlink(ffff8000337bf960) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309
VOP_SYMLINK(fffffd807d6377d8,ffff8000337bfae0,ffff8000337bfb10,ffff8000337bfa10,ffff80002a081000) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432
dosymlinkat(ffff800031b86f88,200010c0,4,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806
syscall(ffff8000337bfc90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000337bfc90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7fdc3dc4030, count: -8
ddb{0}> machine ddbcpu 1