panic: kernel diagnostic assertion "ISSET(bp->b_flags, B_BC)" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_bio.c", line 1683
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
*165922 46982 0 0x8000000 0x4000000 0 syz-executor.0
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8293068a) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e3ebb,ffffffff8292f650,693,ffffffff828d0a8c) at __assert+0x29 sys/kern/subr_prf.c:157
bufcache_take(fffffd8062090140) at bufcache_take+0x254 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd8069384370,2,ffffffffffffffff,ffff80002a6bed00,0,ffffffffffffffff) at vinvalbuf+0x379 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd806ba2cd28,0,0,ffffffffffffffff) at ffs_truncate+0xb99
ufs_inactive(ffff8000378336a8) at ufs_inactive+0x16a sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8069384370,ffff80002a6bed00) at VOP_INACTIVE+0xbf sys/kern/vfs_vops.c:489
vrele(fffffd8069384370) at vrele+0xcc sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffff8008,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrsettrace+0xb6 sys/kern/kern_ktrace.c:122
ktrops(ffff80002a6bed00,ffff8000ffff8008,0,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrops+0x1ae sys/kern/kern_ktrace.c:564
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80002a6bed00,ffff800037833b10,ffff800037833a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549
syscall(ffff800037833b10) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
end trace frame: 0xffff800037833b90, 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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: kernel diagnostic assertion "ISSET(bp->b_flags, B_BC)" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_bio.c", line 1683
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8293068a) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e3ebb,ffffffff8292f650,693,ffffffff828d0a8c) at __assert+0x29 sys/kern/subr_prf.c:157
bufcache_take(fffffd8062090140) at bufcache_take+0x254 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd8069384370,2,ffffffffffffffff,ffff80002a6bed00,0,ffffffffffffffff) at vinvalbuf+0x379 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd806ba2cd28,0,0,ffffffffffffffff) at ffs_truncate+0xb99
ufs_inactive(ffff8000378336a8) at ufs_inactive+0x16a sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8069384370,ffff80002a6bed00) at VOP_INACTIVE+0xbf sys/kern/vfs_vops.c:489
vrele(fffffd8069384370) at vrele+0xcc sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffff8008,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrsettrace+0xb6 sys/kern/kern_ktrace.c:122
ktrops(ffff80002a6bed00,ffff8000ffff8008,0,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrops+0x1ae sys/kern/kern_ktrace.c:564
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80002a6bed00,ffff800037833b10,ffff800037833a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549
syscall(ffff800037833b10) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c152794630, count: -15
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff800037833260
rbx 0
rdx 0xffff800000e3b400
rcx 0
rax 0xffff80002a6bed00
r8 0x101010101010101
r9 0x8080808080808080
r10 0x884b0e01338faeed
r11 0x757b32d161e140a9
r12 0
r13 0xfffffd8062090140
r14 0
r15 0x1
rip 0xffffffff82343fac db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff800037833250
ss 0
db_enter+0x1c: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.0) tid=165922 pid=46982 tcnt=2 stat=onproc
flags process=8000000 proc=4000000<THREAD>
runpri=17, usrpri=63, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0
forw=0xffffffffffffffff, list=0xffff80002a6bf9d0,0xffff80002a6ccd18
process=0xffff8000349ddd68 user=0xffff80003782e000, vmspace=0xfffffd8069605978
estcpu=13, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
67228 449945 67403 0 2 0x8000000 syz-executor.6
67228 482069 67403 0 3 0xc000080 fsleep syz-executor.6
67228 253726 67403 0 3 0xc000080 fsleep syz-executor.6
71947 195954 0 0 3 0x14200 acct acct
83039 231995 57953 0 2 0x8000000 syz-executor.3
83039 333598 57953 0 3 0xc000080 fsleep syz-executor.3
44803 111447 60452 0 2 0x8000000 syz-executor.7
44803 395341 60452 0 3 0xc000080 ttyin syz-executor.7
99245 489459 39147 0 2 0x8000000 syz-executor.5
99245 295389 39147 0 3 0xc000080 fsleep syz-executor.5
99245 363487 39147 0 3 0xc000080 kqsel syz-executor.5
99245 289201 39147 0 3 0xc000080 fsleep syz-executor.5
46982 479908 59230 0 2 0x8000000 syz-executor.0
*46982 165922 59230 0 7 0xc000000 syz-executor.0
82680 489057 34114 0 2 0x8000000 syz-executor.2
82680 218097 34114 0 3 0xc000080 kqsel syz-executor.2
82680 161586 34114 0 2 0xc000000 syz-executor.2
39147 142727 69715 0 3 0x8000082 nanoslp syz-executor.5
98893 69206 69715 0 3 0x8000082 nanoslp syz-executor.4
17269 430612 0 0 3 0x14280 nfsidl nfsio
64196 495926 0 0 3 0x14280 nfsidl nfsio
52226 90908 0 0 3 0x14280 nfsidl nfsio
18577 217204 0 0 3 0x14280 nfsidl nfsio
67917 373919 0 0 3 0x14280 nfsidl nfsio
42946 102946 0 0 3 0x14280 nfsidl nfsio
65444 362168 0 0 3 0x14280 nfsidl nfsio
12487 306912 0 0 3 0x14280 nfsidl nfsio
61931 47198 0 0 3 0x14280 nfsidl nfsio
63698 260125 0 0 3 0x14280 nfsidl nfsio
89357 460757 0 0 3 0x14280 nfsidl nfsio
73810 377875 0 0 3 0x14280 nfsidl nfsio
67771 48582 0 0 3 0x14280 nfsidl nfsio
78629 188766 0 0 3 0x14280 nfsidl nfsio
8458 100435 0 0 3 0x14280 nfsidl nfsio
96338 65084 0 0 3 0x14280 nfsidl nfsio
33195 408547 0 0 3 0x14280 nfsidl nfsio
55086 123724 0 0 3 0x14280 nfsidl nfsio
97641 415473 0 0 3 0x14280 nfsidl nfsio
67196 222098 0 0 3 0x14280 nfsidl nfsio
34114 357701 69715 0 3 0x8000082 nanoslp syz-executor.2
51792 302275 1 0 3 0x18100083 ttyin getty
57953 210946 69715 0 3 0x8000082 nanoslp syz-executor.3
59230 388243 69715 0 3 0x8000082 nanoslp syz-executor.0
60452 411983 69715 0 3 0x8000082 nanoslp syz-executor.7
79353 283756 0 0 3 0x14200 bored sosplice
67403 323960 69715 0 3 0x8000082 nanoslp syz-executor.6
40822 474495 69715 0 2 0x8000002 syz-executor.1
69715 488098 13490 0 3 0x1a000082 wait syz-fuzzer
69715 90419 13490 0 2 0x1e000002 syz-fuzzer
69715 389763 13490 0 3 0x1e000082 thrsleep syz-fuzzer
69715 218958 13490 0 3 0x1e000082 wait syz-fuzzer
69715 44149 13490 0 3 0x1e000082 wait syz-fuzzer
69715 479969 13490 0 3 0x1e000082 wait syz-fuzzer
69715 453017 13490 0 3 0x1e000082 wait syz-fuzzer
69715 32798 13490 0 3 0x1e000082 thrsleep syz-fuzzer
69715 138540 13490 0 3 0x1e000082 thrsleep syz-fuzzer
69715 201074 13490 0 3 0x1e000082 thrsleep syz-fuzzer
69715 115544 13490 0 3 0x1e000082 wait syz-fuzzer
69715 119192 13490 0 3 0x1e000082 thrsleep syz-fuzzer
69715 306879 13490 0 3 0x1e000082 wait syz-fuzzer
69715 261393 13490 0 3 0x1e000082 wait syz-fuzzer
69715 493702 13490 0 3 0x1e000082 kqread syz-fuzzer
13490 370599 16916 0 3 0x810008a sigsusp ksh
16916 251067 35284 0 3 0x1800009a kqread sshd
35284 509382 1 0 3 0x18000088 kqread sshd
8096 163054 29326 73 3 0x19100090 kqread syslogd
29326 11734 1 0 3 0x18100082 sbwait syslogd
74609 292339 1 0 3 0x18100080 kqread resolvd
4476 348321 21671 77 3 0x18100092 kqread dhcpleased
72215 297912 21671 77 3 0x18100092 kqread dhcpleased
21671 196284 1 0 3 0x18000080 kqread dhcpleased
53219 376184 0 0 3 0x14200 bored smr
12272 110293 0 0 2 0x14200 zerothread
3936 419866 0 0 3 0x14200 aiodoned aiodoned
45588 366909 0 0 3 0x14200 syncer update
7120 467885 0 0 3 0x14200 cleaner cleaner
8274 381677 0 0 3 0x14200 reaper reaper
75978 489494 0 0 3 0x14200 pgdaemon pagedaemon
25106 43364 0 0 3 0x14200 bored viomb
43588 368637 0 0 3 0x40014200 acpi0 acpi0
53965 253649 0 0 3 0x14200 bored softnet3
45557 376509 0 0 3 0x14200 bored softnet2
35903 106646 0 0 3 0x14200 bored softnet1
83867 249587 0 0 3 0x14200 bored softnet0
89075 196583 0 0 3 0x14200 bored systqmp
68221 75830 0 0 3 0x14200 bored systq
47351 457865 0 0 3 0x40014200 tmoslp softclock
7209 128246 0 0 3 0x40014200 idle0
1 365824 0 0 3 0x8000082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10178 6483K 7049K 166960K 14227 0
pcb 15 11K 11K 166960K 127 0
rtable 174 6K 8K 166960K 683 0
pf 31 9K 9K 166960K 94 0
ifaddr 43 11K 13K 166960K 116 0
ifgroup 54 2K 2K 166960K 149 0
sysctl 3 1K 1K 166960K 5 0
counters 31 17K 17K 166960K 59 0
ioctlops 0 0K 2K 166960K 136 0
iov 0 0K 28K 166960K 82 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1432 90K 90K 166960K 2684 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 30 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 1K 166960K 112 0
dirhash 12 2K 2K 166960K 39 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 16 57K 69K 166960K 1360 0
sigio 0 0K 0K 166960K 33 0
proc 58 59K 75K 166960K 713 0
subproc 104 6K 6K 166960K 183 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 1 0K 0K 166960K 152 0
in_multi 62 4K 7K 166960K 216 0
ether_multi 1 0K 0K 166960K 19 0
mrt 1 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 85 387K 387K 166960K 85 0
exec 0 0K 1K 166960K 564 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 309 112K 115K 166960K 14013 0
UVM aobj 54 3K 3K 166960K 56 0
pinsyscall 36 72K 100K 166960K 2656 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 78 0
NDP 12 0K 2K 166960K 68 0
temp 76 6804K 6936K 166960K 30455 0
kqueue 13 20K 26K 166960K 188 0
SYN cache 2 16K 16K 166960K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 142 0 139 1 0 1 1 0 8 0
rtentry 112 223 0 146 4 0 4 4 0 8 1
unpcb 144 1178 0 1160 6 0 6 6 0 8 5
syncache 336 15 0 15 1 0 1 1 0 8 1
tcpqe 32 136 0 136 1 0 1 1 0 8 1
tcpcb 808 501 0 486 6 0 6 6 0 8 4
arp 88 43 0 28 1 0 1 1 0 8 0
ipq 40 4 0 2 1 0 1 1 0 8 0
ipqe 40 15 0 13 1 0 1 1 0 8 0
inpcb 360 1654 0 1628 9 0 9 9 0 8 6
nd6 104 45 0 31 1 0 1 1 0 8 0
pkpcb 40 19 0 19 1 0 1 1 0 8 1
kcovpl 48 14 0 6 1 0 1 1 0 8 0
ppxss 1072 12 0 12 1 0 1 1 0 8 1
art_heap8 4096 2 0 0 2 0 2 2 0 8 0
art_heap4 256 811 0 490 29 0 29 29 0 8 7
art_table 32 813 0 490 4 0 4 4 0 8 1
art_node 16 222 0 157 1 0 1 1 0 8 0
sysvmsgpl 40 47 0 44 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 109 0 99 1 0 1 1 0 8 0
shmpl 112 53 0 2 2 0 2 2 0 8 0
dirhash 1024 35 0 18 3 0 3 3 0 8 0
dino2pl 256 3716 0 2198 96 0 96 96 0 8 0
ffsino 240 3716 0 2198 90 0 90 90 0 8 0
nchpl 144 5658 0 3920 66 0 66 66 0 8 0
uvmvnodes 80 4641 0 0 95 0 95 95 0 8 0
vnodes 216 4641 0 0 258 0 258 258 0 8 0
namei 1024 19142 0 19142 3 0 3 3 0 8 3
vcpupl 2048 4 0 1 1 0 1 1 0 8 0
vmpool 664 21 0 18 1 0 1 1 0 8 0
kstatmem 264 80 0 56 2 0 2 2 0 8 0
scxspl 216 17902 0 17902 8 0 8 8 1 8 8
plimitpl 152 423 0 408 1 0 1 1 0 8 0
sigapl 424 1932 0 1866 8 0 8 8 0 8 0
futexpl 64 19538 0 19533 1 0 1 1 0 8 0
knotepl 120 15342 0 15259 11 0 11 11 0 8 7
kqueuepl 184 409 0 398 2 0 2 2 0 8 1
pipepl 288 334 0 306 7 0 7 7 0 8 4
fdescpl 432 1633 0 1606 4 0 4 4 0 8 0
filepl 120 10897 0 10645 14 0 14 14 0 8 5
lockfpl 104 579 0 576 2 0 2 2 0 8 1
lockfspl 48 223 0 220 1 0 1 1 0 8 0
sessionpl 144 31 0 15 1 0 1 1 0 8 0
pgrppl 48 168 0 152 1 0 1 1 0 8 0
ucredpl 104 1946 0 1936 1 0 1 1 0 8 0
zombiepl 144 1867 0 1866 1 0 1 1 0 8 0
processpl 1072 1932 0 1866 5 0 5 5 0 8 0
procpl 656 3567 0 3477 9 0 9 9 0 8 1
sosppl 168 20 0 20 1 0 1 1 0 8 1
sockpl 488 3010 0 2965 32 18 14 22 0 8 8
mcl64k 65536 38 0 37 1 0 1 1 0 8 0
mcl16k 16384 25 0 25 1 0 1 1 0 8 1
mcl12k 12288 58 0 58 1 0 1 1 0 8 1
mcl9k 9216 8 0 8 1 0 1 1 0 8 1
mcl8k 8192 97 0 97 1 0 1 1 0 8 1
mcl4k 4096 212 0 212 1 0 1 1 0 8 1
mcl2k2 2112 17 0 17 1 0 1 1 0 8 1
mcl2k 2048 25622 0 25581 29 16 13 29 0 8 7
mtagpl 96 178 0 106 2 0 2 2 0 8 0
mbufpl 256 65097 0 64862 31 4 27 28 0 8 8
bufpl 280 6566 0 237 453 0 453 453 0 8 0
bufpl: pool(0xffffffff82e17d38:bufpl): page inconsistency: page 0x0; at page head addr 0xfffffd8062090f90 (p 0xfffffd8062090000)
anonpl 24 309000 0 302912 62 0 62 62 0 188 20
amapchunkpl 152 45628 0 44961 37 0 37 37 0 158 8
amappl16 200 7928 0 7804 29 13 16 20 0 8 8
amappl15 192 13 0 13 1 0 1 1 0 8 1
amappl14 184 177 0 166 2 0 2 2 0 8 1
amappl13 176 13 0 13 1 0 1 1 0 8 1
amappl12 168 2351 0 2323 2 0 2 2 0 8 0
amappl11 160 52 0 42 1 0 1 1 0 8 0
amappl10 152 67 0 55 1 0 1 1 0 8 0
amappl9 144 137 0 136 1 0 1 1 0 8 0
amappl8 136 176 0 119 2 0 2 2 0 8 0
amappl7 128 76 0 62 1 0 1 1 0 8 0
amappl6 120 424 0 407 2 0 2 2 0 8 1
amappl5 112 214 0 202 1 0 1 1 0 8 0
amappl4 104 581 0 543 2 0 2 2 0 8 0
amappl3 96 9555 0 9476 3 0 3 3 0 8 0
amappl2 88 2177 0 2103 4 0 4 4 0 8 2
amappl1 80 14428 0 13933 22 3 19 22 0 8 8
amappl 88 13343 0 13144 6 0 6 6 0 92 0
dma4096 4096 1 0 1 1 0 1 1 0 8 1
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 6 0 6 1 0 1 1 0 8 1
dma128 128 253 0 253 1 0 1 1 0 8 1
dma64 64 6 0 6 1 0 1 1 0 8 1
dma32 32 7 0 7 1 0 1 1 0 8 1
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 55 0 2 1 0 1 1 0 8 0
uaddrrnd 24 1654 0 1624 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1654 0 1624 1 0 1 1 0 8 0
vmmpekpl 168 16671 0 16607 4 0 4 4 0 8 0
vmmpepl 168 118377 0 116489 111 0 111 111 0 357 19
vmsppl 344 1653 0 1624 3 0 3 3 0 8 0
rwobjpl 24 40372 0 34581 36 0 36 36 0 8 0
pdppl 4096 3314 0 3251 112 46 66 67 0 8 3
pvpl 32 746432 0 734460 361 12 349 361 0 265 235
pmappl 216 1653 0 1624 2 0 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 417 0 66 11 0 11 11 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8293068a) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e3ebb,ffffffff8292f650,693,ffffffff828d0a8c) at __assert+0x29 sys/kern/subr_prf.c:157
bufcache_take(fffffd8062090140) at bufcache_take+0x254 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd8069384370,2,ffffffffffffffff,ffff80002a6bed00,0,ffffffffffffffff) at vinvalbuf+0x379 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd806ba2cd28,0,0,ffffffffffffffff) at ffs_truncate+0xb99
ufs_inactive(ffff8000378336a8) at ufs_inactive+0x16a sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8069384370,ffff80002a6bed00) at VOP_INACTIVE+0xbf sys/kern/vfs_vops.c:489
vrele(fffffd8069384370) at vrele+0xcc sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffff8008,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrsettrace+0xb6 sys/kern/kern_ktrace.c:122
ktrops(ffff80002a6bed00,ffff8000ffff8008,0,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrops+0x1ae sys/kern/kern_ktrace.c:564
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80002a6bed00,ffff800037833b10,ffff800037833a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549
syscall(ffff800037833b10) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c152794630, count: -15
ddb> machine ddbcpu 1
No such command
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8293068a) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e3ebb,ffffffff8292f650,693,ffffffff828d0a8c) at __assert+0x29 sys/kern/subr_prf.c:157
bufcache_take(fffffd8062090140) at bufcache_take+0x254 sys/kern/vfs_bio.c:1684
vinvalbuf(fffffd8069384370,2,ffffffffffffffff,ffff80002a6bed00,0,ffffffffffffffff) at vinvalbuf+0x379 sys/kern/vfs_subr.c:2016
ffs_truncate(fffffd806ba2cd28,0,0,ffffffffffffffff) at ffs_truncate+0xb99
ufs_inactive(ffff8000378336a8) at ufs_inactive+0x16a sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8069384370,ffff80002a6bed00) at VOP_INACTIVE+0xbf sys/kern/vfs_vops.c:489
vrele(fffffd8069384370) at vrele+0xcc sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffff8008,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrsettrace+0xb6 sys/kern/kern_ktrace.c:122
ktrops(ffff80002a6bed00,ffff8000ffff8008,0,80000d30,fffffd8072f0a638,fffffd807f7d7820) at ktrops+0x1ae sys/kern/kern_ktrace.c:564
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8072f0a638,4,d30,0,ffff80002a6bed00) at doktrace+0x514 sys/kern/kern_ktrace.c:508
sys_ktrace(ffff80002a6bed00,ffff800037833b10,ffff800037833a60) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549
syscall(ffff800037833b10) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x8c152794630, count: -15