panic: kernel diagnostic assertion "ISSET(bp->b_flags, B_BC)" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_bio.c", line 1683
Stopped at db_enter+0x25: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*490569 78594 0 0x8000000 0x4000000 0K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d6c5c) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c523,ffffffff83024e87,693,ffffffff83073da5) at __assert+0x29
bufcache_take(fffffd80657d88c8) at bufcache_take+0x303 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd80656396f0,2,ffffffffffffffff,ffff80003077c7e0,0,ffffffffffffffff) at vinvalbuf+0x4d2 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd80714be340,0,0,ffffffffffffffff) at ffs_truncate+0xf6c
ufs_inactive(ffff80002a13bbc8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd80656396f0,ffff80003077c7e0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vrele(fffffd80656396f0) at vrele+0x129 sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffffba90,a0001410,fffffd8068cd71f8,fffffd807f7d36e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122
ktrops(ffff80003077c7e0,ffff8000ffffba90,0,a0001410,fffffd8068cd71f8,fffffd807f7d36e8) at ktrops+0x271 sys/kern/kern_ktrace.c:564
doktrace(fffffd8068cd71f8,4,20001410,0,ffff80003077c7e0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8068cd71f8,4,20001410,0,ffff80003077c7e0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80003077c7e0,ffff80002a13c030,ffff80002a13bf80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549
syscall(ffff80002a13c030) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a13c030) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
end trace frame: 0xffff80002a13c0b0, count: 0
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: kernel diagnostic assertion "ISSET(bp->b_flags, B_BC)" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/vfs_bio.c", line 1683
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d6c5c) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c523,ffffffff83024e87,693,ffffffff83073da5) at __assert+0x29
bufcache_take(fffffd80657d88c8) at bufcache_take+0x303 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd80656396f0,2,ffffffffffffffff,ffff80003077c7e0,0,ffffffffffffffff) at vinvalbuf+0x4d2 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd80714be340,0,0,ffffffffffffffff) at ffs_truncate+0xf6c
ufs_inactive(ffff80002a13bbc8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd80656396f0,ffff80003077c7e0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vrele(fffffd80656396f0) at vrele+0x129 sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffffba90,a0001410,fffffd8068cd71f8,fffffd807f7d36e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122
ktrops(ffff80003077c7e0,ffff8000ffffba90,0,a0001410,fffffd8068cd71f8,fffffd807f7d36e8) at ktrops+0x271 sys/kern/kern_ktrace.c:564
doktrace(fffffd8068cd71f8,4,20001410,0,ffff80003077c7e0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8068cd71f8,4,20001410,0,ffff80003077c7e0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80003077c7e0,ffff80002a13c030,ffff80002a13bf80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549
syscall(ffff80002a13c030) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a13c030) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9257ee3cd10, count: -15
ddb{0}> show registers
rdi 0
rsi 0x1
rbp 0xffff80002a13b770
rbx 0xffffffff83423d87 cpu_info_full_primary+0x2d87
rdx 0
rcx 0xffff80003077c7e0
rax 0xffffffff83422ff0 cpu_info_full_primary+0x1ff0
r8 0x101010101010101
r9 0x8080808080808080
r10 0x1f995ca1b9770d8
r11 0x8a9805251d9d700b
r12 0xffffffff83423b88 cpu_info_full_primary+0x2b88
r13 0
r14 0
r15 0x1
rip 0xffffffff821ea615 db_enter+0x25
cs 0x8
rflags 0x246
rsp 0xffff80002a13b760
ss 0x10
db_enter+0x25: addq $0x8,%rsp
ddb{0}> show proc
PROC (syz-executor) tid=490569 pid=78594 tcnt=3 stat=onproc
flags process=8000000 proc=4000000<THREAD>
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80003077d200,0xffff80003077d9a8
process=0xffff800037265230 user=0xffff80002a137000, vmspace=0xfffffd807e3506e8
estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
55561 299503 43481 0 2 0x8000000 syz-executor
78594 237212 83755 0 2 0x8000000 syz-executor
78594 517282 83755 0 2 0xc000000 syz-executor
*78594 490569 83755 0 7 0xc000000 syz-executor
97390 425761 24584 0 3 0x8000080 nanoslp syz-executor
97390 45178 24584 0 3 0xc000080 ttyout syz-executor
97390 74975 24584 0 3 0xc000080 fsleep syz-executor
91422 473508 37961 0 3 0x8000080 nanoslp syz-executor
91422 467744 37961 0 3 0xc000080 kqread syz-executor
91422 253833 37961 0 3 0xc000080 fsleep syz-executor
91422 391000 37961 0 3 0xc000080 fsleep syz-executor
82062 411257 10654 0 3 0x8000080 nanoslp syz-executor
82062 66315 10654 0 3 0xc000080 netcon syz-executor
24972 402925 46584 0 3 0x8000082 piperd syz-executor
83755 328849 46584 0 3 0x8000082 nanoslp syz-executor
66898 292865 46584 0 3 0x8000082 nanoslp syz-executor
37961 254778 46584 0 3 0x8000082 nanoslp syz-executor
10654 32826 46584 0 3 0x8000082 nanoslp syz-executor
43481 505628 46584 0 2 0x8000002 syz-executor
16711 252720 46584 0 3 0x8000082 piperd syz-executor
24584 251933 46584 0 3 0x8000082 nanoslp syz-executor
20864 102791 1 0 3 0x18100083 ttyin getty
31087 338679 0 0 3 0x14280 nfsidl nfsio
98589 15524 0 0 3 0x14280 nfsidl nfsio
59433 510202 0 0 3 0x14280 nfsidl nfsio
41857 152501 0 0 3 0x14280 nfsidl nfsio
61699 511826 0 0 3 0x14280 nfsidl nfsio
57529 319450 0 0 3 0x14280 nfsidl nfsio
24973 472670 0 0 3 0x14280 nfsidl nfsio
8717 373984 0 0 3 0x14280 nfsidl nfsio
6174 511803 0 0 3 0x14280 nfsidl nfsio
74761 81812 0 0 3 0x14280 nfsidl nfsio
71929 266768 0 0 3 0x14280 nfsidl nfsio
84017 212502 0 0 3 0x14280 nfsidl nfsio
13384 176679 0 0 3 0x14280 nfsidl nfsio
24147 468529 0 0 3 0x14280 nfsidl nfsio
10369 484461 0 0 3 0x14280 nfsidl nfsio
54829 74181 0 0 3 0x14280 nfsidl nfsio
58190 515371 0 0 3 0x14280 nfsidl nfsio
39226 52895 0 0 3 0x14280 nfsidl nfsio
15811 280508 0 0 3 0x14280 nfsidl nfsio
99169 123523 0 0 3 0x14280 nfsidl nfsio
19252 474007 0 0 3 0x14200 bored sosplice
46584 221708 34842 0 2 0x8000002 syz-executor
34842 400010 19891 0 3 0x810008a sigsusp ksh
19891 8060 8140 0 3 0x18000098 kqread sshd-session
8140 404067 14092 0 3 0x18000092 kqread sshd-session
14092 190825 1 0 3 0x18000088 kqread sshd
31219 303235 23860 74 3 0x19100092 bpf pflogd
23860 329240 1 0 3 0x18000080 sbwait pflogd
91865 338546 65518 73 2 0x19100010 syslogd
65518 295792 1 0 3 0x18100082 sbwait syslogd
94279 286379 1 0 3 0x18100080 kqread resolvd
51185 108978 17455 77 3 0x18100092 kqread dhcpleased
3444 251661 17455 77 3 0x18100092 kqread dhcpleased
17455 26216 1 0 3 0x18000080 kqread dhcpleased
34732 447470 0 0 3 0x14200 bored smr
27306 438421 0 0 2 0x14200 zerothread
14101 470143 0 0 3 0x14200 aiodoned aiodoned
20759 496236 0 0 3 0x14200 syncer update
41171 316147 0 0 3 0x14200 cleaner cleaner
4462 2374 0 0 3 0x14200 reaper reaper
88418 258946 0 0 3 0x14200 pgdaemon pagedaemon
88543 154827 0 0 3 0x14200 bored viomb
38067 413407 0 0 3 0x40014200 acpi0 acpi0
63336 315809 0 0 7 0x40014200 idle1
65741 167555 0 0 3 0x14200 bored softnet3
76577 195448 0 0 3 0x14200 bored softnet2
15008 126227 0 0 3 0x14200 bored softnet1
56193 469756 0 0 2 0x14200 softnet0
73632 499227 0 0 3 0x14200 bored systqmp
8700 179436 0 0 3 0x14200 bored systq
4280 506827 0 0 3 0x14200 tmoslp softclockmp
52549 182462 0 0 3 0x40014200 tmoslp softclock
48742 423551 0 0 3 0x40014200 idle0
1 152844 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 78594 (syz-executor) thread 0xffff80003077c7e0 (490569)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83505470)
#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+0x229 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 ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111
#7 ffs_truncate+0xcb6
#8 ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84
#9 VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
#10 vrele+0x129 sys/kern/vfs_subr.c:827
#11 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122
#12 ktrops+0x271 sys/kern/kern_ktrace.c:564
#13 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
#13 doktrace+0x6dd sys/kern/kern_ktrace.c:508
#14 sys_ktrace+0x11c sys/kern/kern_ktrace.c:549
#15 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#15 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
#16 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd80714be3d8)
#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 vrele+0xd0 sys/kern/vfs_subr.c:818
#6 ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122
#7 ktrops+0x271 sys/kern/kern_ktrace.c:564
#8 doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
#8 doktrace+0x6dd sys/kern/kern_ktrace.c:508
#9 sys_ktrace+0x11c sys/kern/kern_ktrace.c:549
#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
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10253 10322K 10751K 166960K 15176 0
pcb 18 18K 20K 166960K 625 0
rtable 217 8K 8K 166960K 3539 0
pf 42 11K 12K 166960K 319 0
ifaddr 47 17K 17K 166960K 487 0
ifgroup 72 3K 3K 166960K 555 0
sysctl 4 1K 1K 166960K 4 0
counters 72 37K 37K 166960K 326 0
ioctlops 0 0K 4K 166960K 1866 0
iov 0 0K 20K 166960K 115 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1471 92K 93K 166960K 4833 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 5K 9K 166960K 51 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 263 0
dirhash 15 2K 3K 166960K 81 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 16 57K 93K 166960K 3261 0
sigio 0 0K 0K 166960K 79 0
proc 71 91K 140K 166960K 3403 0
subproc 104 6K 7K 166960K 1378 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 1 0K 0K 166960K 377 0
in_multi 97 7K 7K 166960K 1235 0
ether_multi 1 0K 0K 166960K 12 0
mrt 1 0K 0K 166960K 3 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 259 1155K 1155K 166960K 259 0
exec 0 0K 1K 166960K 2238 0
pfkey data 0 0K 0K 166960K 4 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 241 77K 97K 166960K 26379 0
UVM aobj 201 7K 7K 166960K 201 0
pinsyscall 41 82K 106K 166960K 6882 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 202 0
NDP 20 0K 1K 166960K 356 0
temp 75 6816K 14749K 166960K 99453 0
kqueue 14 22K 34K 166960K 310 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 120 530 0 527 4 2 2 2 0 8 1
rtentry 112 1251 0 1154 4 1 3 4 0 8 0
unpcb 144 2512 0 2492 38 37 1 10 0 8 0
syncache 336 5 0 5 3 3 0 1 0 8 0
tcpcb 808 846 0 840 32 30 2 8 0 8 1
arp 120 224 0 206 1 0 1 1 0 8 0
inpcb 384 3992 0 3980 72 57 15 15 0 8 12
nd6 136 344 0 319 2 1 1 2 0 8 0
pkpcb 40 13 0 13 5 5 0 1 0 8 0
kcovpl 48 106 0 98 1 0 1 1 0 8 0
ppxss 1168 17 0 17 7 7 0 1 0 8 0
pffrag 232 30 0 28 2 1 1 1 0 482 0
pffrnode 88 29 0 27 2 1 1 1 0 8 0
pffrent 40 58 0 56 2 1 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
pftag 88 2 0 0 1 0 1 1 0 8 0
pfstitem 24 265 0 228 1 0 1 1 0 8 0
pfstkey 128 265 0 228 2 0 2 2 0 8 0
pfstate 376 265 0 228 5 1 4 5 0 8 0
pfrule 1344 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 4984 0 4574 46 19 27 29 0 8 1
art_table 32 4985 0 4574 4 0 4 4 0 8 0
art_node 16 1246 0 1159 1 0 1 1 0 8 0
sysvmsgpl 40 11 0 7 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 261 0 251 1 0 1 1 0 8 0
shmpl 112 198 0 0 6 0 6 6 0 8 0
dirhash 1024 63 0 44 3 0 3 3 0 8 0
dino2pl 256 5200 0 3491 108 0 108 108 0 8 0
ffsino 272 5200 0 3491 115 0 115 115 0 8 0
nchpl 144 8010 0 7353 68 0 68 68 0 8 39
uvmvnodes 80 7892 0 0 162 0 162 162 0 8 0
vnodes 216 7892 0 0 439 0 439 439 0 8 0
namei 1024 42226 0 42226 5 4 1 2 0 8 1
percpumem 16 177 0 127 1 0 1 1 0 8 0
vcpupl 3904 7 0 2 1 0 1 1 0 8 0
vmpool 696 18 0 13 1 0 1 1 0 8 0
kstatmem 264 286 0 254 3 0 3 3 0 8 0
scsiplug 72 5 0 5 4 4 0 1 0 8 0
scxspl 216 68707 0 68707 18 17 1 8 1 8 1
plimitpl 152 989 0 972 1 0 1 1 0 8 0
sigapl 424 3391 0 3322 11 2 9 9 0 8 0
futexpl 64 38794 0 38791 7 6 1 1 0 8 0
knotepl 120 932 0 0 25 0 25 25 0 8 0
kqueuepl 216 1176 0 1164 19 16 3 8 0 8 2
pipepl 320 606 0 579 3 0 3 3 0 8 0
fdescpl 496 3346 0 3316 6 1 5 5 0 8 0
filepl 152 25826 0 25569 62 46 16 20 0 8 2
lockfpl 104 953 0 951 2 1 1 2 0 8 0
lockfspl 48 342 0 340 1 0 1 1 0 8 0
sessionpl 144 121 0 112 1 0 1 1 0 8 0
pgrppl 48 314 0 297 1 0 1 1 0 8 0
ucredpl 104 4005 0 3992 1 0 1 1 0 8 0
zombiepl 144 3323 0 3322 2 1 1 1 0 8 0
processpl 1152 3391 0 3322 7 1 6 6 0 8 0
procpl 648 6302 0 6225 11 3 8 8 0 8 0
srpgc 96 12 0 12 4 4 0 1 0 8 0
sosppl 168 12 0 12 6 5 1 1 0 8 1
sockpl 664 7067 0 7032 100 85 15 23 0 8 10
mcl64k 65536 8 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl12k 12288 3 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 10 0 0 2 0 2 2 0 8 0
mcl4k 4096 2 0 0 1 0 1 1 0 8 0
mcl2k2 2112 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 320 0 0 28 3 25 28 0 8 0
mtagpl 96 41 0 0 1 0 1 1 0 8 0
mbufpl 256 8887 0 0 555 0 555 555 0 8 0
bufpl 280 12450 0 3947 609 1 608 608 0 8 0
bufpl: pool(0xffffffff83513f28:bufpl): page inconsistency: page 0x0; at page head addr 0xfffffd80657d8f90 (p 0xfffffd80657d8000)
anonpl 24 473106 0 468687 153 74 79 98 0 185 33
amapchunkpl 152 85383 0 84853 87 50 37 49 0 158 14
amappl16 200 6734 0 6707 57 53 4 17 0 8 1
amappl15 192 67 0 67 2 2 0 1 0 8 0
amappl14 184 316 0 304 1 0 1 1 0 8 0
amappl13 176 5 0 5 1 1 0 1 0 8 0
amappl12 168 5562 0 5533 4 2 2 3 0 8 0
amappl11 160 55 0 41 1 0 1 1 0 8 0
amappl10 152 6 0 6 1 1 0 1 0 8 0
amappl9 144 124 0 124 2 2 0 1 0 8 0
amappl8 136 27 0 23 1 0 1 1 0 8 0
amappl7 128 305 0 292 1 0 1 1 0 8 0
amappl6 120 1142 0 1140 1 0 1 1 0 8 0
amappl5 112 528 0 515 1 0 1 1 0 8 0
amappl4 104 612 0 592 1 0 1 1 0 8 0
amappl3 96 16473 0 16362 4 0 4 4 0 8 0
amappl2 88 2002 0 1937 2 0 2 2 0 8 0
amappl1 80 23074 0 22502 15 2 13 14 0 8 0
amappl 88 25155 0 24981 6 1 5 5 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 72 200 0 0 4 0 4 4 0 8 0
uaddrrnd 24 3364 0 3329 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 3364 0 3329 1 0 1 1 0 8 0
vmmpekpl 168 27879 0 27833 3 0 3 3 0 8 0
vmmpepl 168 206289 0 204440 133 46 87 96 0 357 2
vmsppl 440 3363 0 3329 7 2 5 5 0 8 0
rwobjpl 56 63934 0 54889 135 6 129 129 0 8 0
pdppl 4096 6736 0 6663 239 160 79 88 0 8 6
pvpl 32 46965 0 0 377 0 377 377 0 265 0
pmappl 248 3363 0 3329 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1150 0 228 27 0 27 27 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830d6c5c) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff8308c523,ffffffff83024e87,693,ffffffff83073da5) at __assert+0x29
bufcache_take(fffffd80657d88c8) at bufcache_take+0x303 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd80656396f0,2,ffffffffffffffff,ffff80003077c7e0,0,ffffffffffffffff) at vinvalbuf+0x4d2 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd80714be340,0,0,ffffffffffffffff) at ffs_truncate+0xf6c
ufs_inactive(ffff80002a13bbc8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd80656396f0,ffff80003077c7e0) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vrele(fffffd80656396f0) at vrele+0x129 sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffffba90,a0001410,fffffd8068cd71f8,fffffd807f7d36e8) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122
ktrops(ffff80003077c7e0,ffff8000ffffba90,0,a0001410,fffffd8068cd71f8,fffffd807f7d36e8) at ktrops+0x271 sys/kern/kern_ktrace.c:564
doktrace(fffffd8068cd71f8,4,20001410,0,ffff80003077c7e0) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8068cd71f8,4,20001410,0,ffff80003077c7e0) at doktrace+0x6dd sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80003077c7e0,ffff80002a13c030,ffff80002a13bf80) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549
syscall(ffff80002a13c030) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a13c030) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x9257ee3cd10, count: -15
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1208
sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x41e sys/dev/acpi/acpicpu.c:1208
sched_idle(ffff800029b7bff0) at sched_idle+0x558 sys/kern/kern_sched.c:182
end trace frame: 0x0, count: -5