panic: kernel diagnostic assertion "bp->b_data != NULL" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 235
Stopped at db_enter+0x1c: addq $0x8,%rsp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 23735 5470 0 0x8000000 0x4000000 0 syz-executor.0
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff829300a1) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e4dec,ffffffff828f079e,eb,ffffffff8286ff11) at __assert+0x29 sys/kern/subr_prf.c:157
buf_unmap(fffffd8064e959d8) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235
buf_map(fffffd8061643368) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117
buf_get(fffffd806b553058,31,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175
getblk(fffffd806b553058,31,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044
ffs2_balloc(fffffd80774992d0,c4000,4000,fffffd807f7d7958,0,ffff80002db192d8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684
ffs_write(ffff80002db19360) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd806b553058,ffff80002db19580,1,fffffd807f7d7958) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_write(fffffd806c248f10,ffff80002db19580,1) at vn_write+0x19f sys/kern/vfs_vnops.c:408
dofilewritev(ffff80002a62d200,6,ffff80002db19580,1,ffff80002db19640) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375
sys_pwritev(ffff80002a62d200,ffff80002db196f0,ffff80002db19640) at sys_pwritev+0xb6 sys/kern/vfs_syscalls.c:3387
syscall(ffff80002db196f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
end trace frame: 0xffff80002db19770, 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 "bp->b_data != NULL" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 235
ddb> trace
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff829300a1) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e4dec,ffffffff828f079e,eb,ffffffff8286ff11) at __assert+0x29 sys/kern/subr_prf.c:157
buf_unmap(fffffd8064e959d8) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235
buf_map(fffffd8061643368) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117
buf_get(fffffd806b553058,31,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175
getblk(fffffd806b553058,31,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044
ffs2_balloc(fffffd80774992d0,c4000,4000,fffffd807f7d7958,0,ffff80002db192d8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684
ffs_write(ffff80002db19360) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd806b553058,ffff80002db19580,1,fffffd807f7d7958) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_write(fffffd806c248f10,ffff80002db19580,1) at vn_write+0x19f sys/kern/vfs_vnops.c:408
dofilewritev(ffff80002a62d200,6,ffff80002db19580,1,ffff80002db19640) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375
sys_pwritev(ffff80002a62d200,ffff80002db196f0,ffff80002db19640) at sys_pwritev+0xb6 sys/kern/vfs_syscalls.c:3387
syscall(ffff80002db196f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4a2973606f0, count: -15
ddb> show registers
rdi 0
rsi 0x1
rbp 0xffff80002db18c60
rbx 0xfffffd8061643301
rdx 0xffff800000e1eb40
rcx 0
rax 0xffff80002a62d200
r8 0x101010101010101
r9 0x8080808080808080
r10 0x2327feddc4d6b041
r11 0xfd4508be8a618328
r12 0
r13 0
r14 0
r15 0x1
rip 0xffffffff813d6ecc db_enter+0x1c
cs 0x8
rflags 0x246
rsp 0xffff80002db18c50
ss 0
db_enter+0x1c: addq $0x8,%rsp
ddb> show proc
PROC (syz-executor.0) tid=23735 pid=5470 tcnt=2 stat=onproc
flags process=8000000 proc=4000000<THREAD>
runpri=17, usrpri=86, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a6a1c70,0xffff80002a62d9c0
process=0xffff8000329a61d8 user=0xffff80002db14000, vmspace=0xfffffd8068e2b588
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
82534 92473 77996 0 2 0x8000000 syz-executor.2
82534 386441 77996 0 3 0xc000080 fsleep syz-executor.2
84992 170448 30983 0 2 0x8000000 syz-executor.4
84992 171305 30983 0 2 0xc000000 syz-executor.4
5470 243948 71279 0 2 0x8000000 syz-executor.0
* 5470 23735 71279 0 7 0xc000000 syz-executor.0
26060 112634 82623 0 2 0x8000000 syz-executor.3
26060 80649 82623 0 3 0xc000080 fsleep syz-executor.3
17057 303330 86409 0 3 0x8000080 nanoslp syz-executor.5
17057 415966 86409 0 3 0xc000080 kqsel syz-executor.5
17057 521192 86409 0 3 0xc000080 fsleep syz-executor.5
77996 164145 10650 0 3 0x8000082 nanoslp syz-executor.2
27462 13940 10650 0 3 0x8000082 nanoslp syz-executor.6
30983 118605 10650 0 3 0x8000082 nanoslp syz-executor.4
82623 231098 10650 0 3 0x8000082 nanoslp syz-executor.3
71279 114243 10650 0 3 0x8000082 nanoslp syz-executor.0
9264 394977 10650 0 3 0x8000082 nanoslp syz-executor.7
86409 225961 10650 0 3 0x8000082 nanoslp syz-executor.5
54552 178049 64832 0 3 0x18100082 netio arp
64832 79156 1 0 3 0x810008a sigsusp sh
28004 475344 1 0 3 0x18100083 ttyin getty
8313 396863 0 0 3 0x14280 nfsidl nfsio
10879 23445 0 0 3 0x14280 nfsidl nfsio
63429 340238 0 0 3 0x14280 nfsidl nfsio
9058 509357 0 0 3 0x14280 nfsidl nfsio
87710 404599 0 0 3 0x14280 nfsidl nfsio
35766 199234 0 0 3 0x14280 nfsidl nfsio
61065 436681 0 0 3 0x14280 nfsidl nfsio
27444 339744 0 0 3 0x14280 nfsidl nfsio
25 321074 0 0 3 0x14280 nfsidl nfsio
96428 188538 0 0 3 0x14280 nfsidl nfsio
66696 340868 0 0 3 0x14280 nfsidl nfsio
83302 259869 0 0 3 0x14280 nfsidl nfsio
31646 452672 0 0 3 0x14280 nfsidl nfsio
2395 91608 0 0 3 0x14280 nfsidl nfsio
37417 407905 0 0 3 0x14280 nfsidl nfsio
55543 184115 0 0 3 0x14280 nfsidl nfsio
39128 251038 0 0 3 0x14280 nfsidl nfsio
3166 446872 0 0 3 0x14280 nfsidl nfsio
38594 36010 0 0 3 0x14280 nfsidl nfsio
25371 367570 0 0 3 0x14280 nfsidl nfsio
89094 321325 0 0 3 0x14200 bored sosplice
10650 18089 13923 0 3 0x1a000082 kqread syz-fuzzer
10650 444257 13923 0 3 0x1e000082 thrsleep syz-fuzzer
10650 252416 13923 0 3 0x1e000082 thrsleep syz-fuzzer
10650 283382 13923 0 3 0x1e000082 wait syz-fuzzer
10650 140624 13923 0 3 0x1e000082 wait syz-fuzzer
10650 489912 13923 0 3 0x1e000082 wait syz-fuzzer
10650 451180 13923 0 3 0x1e000082 thrsleep syz-fuzzer
10650 92820 13923 0 3 0x1e000082 thrsleep syz-fuzzer
10650 470981 13923 0 3 0x1e000082 wait syz-fuzzer
10650 415923 13923 0 3 0x1e000082 wait syz-fuzzer
10650 145357 13923 0 3 0x1e000082 thrsleep syz-fuzzer
10650 198842 13923 0 3 0x1e000082 wait syz-fuzzer
10650 65237 13923 0 3 0x1e000082 wait syz-fuzzer
10650 512048 13923 0 3 0x1e000082 thrsleep syz-fuzzer
10650 444728 13923 0 3 0x1e000082 thrsleep syz-fuzzer
13923 423912 55524 0 3 0x810008a sigsusp ksh
55524 265022 87760 0 3 0x1800009a kqread sshd
87760 148629 1 0 3 0x18000088 kqread sshd
19648 249606 80152 73 2 0x19100010 syslogd
80152 398916 1 0 3 0x18100082 sbwait syslogd
3150 465897 1 0 3 0x18100080 kqread resolvd
60944 65153 0 0 3 0x14200 bored smr
69501 275691 0 0 2 0x14200 zerothread
31484 392724 0 0 3 0x14200 aiodoned aiodoned
3865 431997 0 0 3 0x14200 syncer update
87787 224962 0 0 3 0x14200 cleaner cleaner
55969 30001 0 0 3 0x14200 reaper reaper
13580 241090 0 0 3 0x14200 pgdaemon pagedaemon
91637 278798 0 0 3 0x14200 bored viomb
65348 154351 0 0 3 0x40014200 acpi0 acpi0
65463 201912 0 0 3 0x14200 bored softnet3
99203 221288 0 0 3 0x14200 bored softnet2
44691 506538 0 0 3 0x14200 bored softnet1
88053 2437 0 0 3 0x14200 bored softnet0
4637 136350 0 0 3 0x14200 bored systqmp
10174 450766 0 0 3 0x14200 bored systq
28743 452586 0 0 3 0x40014200 tmoslp softclock
76586 141276 0 0 3 0x40014200 idle0
1 323312 0 0 3 0x8080082 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 10194 6444K 10779K 166960K 18348 0
pcb 17 15K 17K 166960K 1066 0
rtable 214 10K 10K 166960K 5602 0
pf 43 11K 11K 166960K 618 0
ifaddr 47 14K 17K 166960K 812 0
ifgroup 76 2K 3K 166960K 999 0
sysctl 4 1K 2K 166960K 18 0
counters 37 18K 18K 166960K 311 0
ioctlops 0 0K 2K 166960K 592 0
iov 0 0K 20K 166960K 611 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1563 98K 99K 166960K 7764 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 9K 166960K 191 0
VM map 2 1K 1K 166960K 2 0
sem 16 5K 5K 166960K 38 0
dirhash 12 2K 3K 166960K 117 0
ACPI 1697 195K 286K 166960K 12548 0
file desc 17 61K 101K 166960K 7718 0
sigio 0 0K 0K 166960K 122 0
proc 52 42K 116K 166960K 5183 0
subproc 104 6K 7K 166960K 2158 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 893 0
in_multi 86 6K 7K 166960K 1987 0
ether_multi 1 0K 0K 166960K 69 0
mrt 1 0K 0K 166960K 15 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 109 493K 493K 166960K 109 0
exec 0 0K 1K 166960K 3164 0
pfkey data 0 0K 0K 166960K 12 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 302 152K 183K 166960K 62825 0
UVM aobj 131 8K 8K 166960K 134 0
pinsyscall 32 64K 100K 166960K 13030 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 357 0
NDP 22 0K 2K 166960K 615 0
temp 99 6800K 14736K 166960K 348317 0
kqueue 6 10K 30K 166960K 870 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 1016 0 1012 3 0 3 3 0 8 2
rtentry 112 1991 0 1902 4 0 4 4 0 8 1
unpcb 144 5403 0 5397 6 0 6 6 0 8 5
syncache 336 36 0 36 1 0 1 1 0 8 1
tcpqe 32 11 0 11 1 0 1 1 0 8 1
tcpcb 808 2422 0 2417 8 0 8 8 0 8 7
arp 88 370 0 353 1 0 1 1 0 8 0
ipq 40 107 0 107 1 0 1 1 0 8 1
ipqe 40 4005 0 4005 1 0 1 1 0 8 1
inpcb 352 7727 0 7720 10 1 9 10 0 8 8
nd6 104 525 0 504 1 0 1 1 0 8 0
pkpcb 40 59 0 59 1 0 1 1 0 8 1
kcovpl 48 166 0 158 1 0 1 1 0 8 0
ppxss 1072 103 0 102 1 0 1 1 0 8 0
art_heap8 4096 3 0 2 3 0 3 3 0 8 2
art_heap4 256 7821 0 7442 88 64 24 29 0 8 0
art_table 32 7824 0 7444 4 0 4 4 0 8 0
art_node 16 1959 0 1879 1 0 1 1 0 8 0
sysvmsgpl 40 25 0 18 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 112 31 0 17 1 0 1 1 0 8 0
shmpl 112 131 0 3 4 0 4 4 0 8 0
dirhash 1024 87 0 70 3 0 3 3 0 8 0
dino2pl 256 12780 0 11215 99 0 99 99 0 8 0
ffsino 240 12780 0 11215 93 0 93 93 0 8 0
nchpl 144 22786 0 22175 66 33 33 66 0 8 8
uvmvnodes 80 10509 0 0 215 0 215 215 0 8 0
vnodes 216 10509 0 0 584 0 584 584 0 8 0
namei 1024 93061 0 93061 3 0 3 3 0 8 3
vcpupl 3904 44 0 3 6 0 6 6 0 8 0
vmpool 664 59 0 18 4 0 4 4 0 8 0
kstatmem 264 584 0 548 3 0 3 3 0 8 0
scsiplug 72 10 0 10 1 0 1 1 0 8 1
scxspl 216 123115 0 123099 8 0 8 8 1 8 7
plimitpl 152 1203 0 1189 1 0 1 1 0 8 0
sigapl 424 7735 0 7672 9 0 9 9 0 8 0
futexpl 64 117347 0 117344 1 0 1 1 0 8 0
knotepl 120 25337 0 25269 17 6 11 17 0 8 8
kqueuepl 184 1849 0 1843 4 0 4 4 0 8 3
pipepl 288 1633 0 1605 7 0 7 7 0 8 4
fdescpl 432 7693 0 7668 5 0 5 5 0 8 1
filepl 120 52628 0 52401 16 1 15 16 0 8 8
lockfpl 104 2138 0 2136 2 0 2 2 0 8 1
lockfspl 48 891 0 889 1 0 1 1 0 8 0
sessionpl 144 184 0 169 1 0 1 1 0 8 0
pgrppl 48 278 0 263 1 0 1 1 0 8 0
ucredpl 104 7692 0 7683 1 0 1 1 0 8 0
zombiepl 144 7674 0 7672 1 0 1 1 0 8 0
processpl 1080 7735 0 7672 5 0 5 5 0 8 0
procpl 656 14805 0 14722 9 0 9 9 0 8 0
sosppl 168 28 0 28 1 0 1 1 0 8 1
sockpl 504 14244 0 14227 76 66 10 20 0 8 7
mcl64k 65536 455 0 455 1 0 1 1 0 8 1
mcl16k 16384 81 0 81 1 0 1 1 0 8 1
mcl12k 12288 43 0 43 1 0 1 1 0 8 1
mcl9k 9216 16 0 16 1 0 1 1 0 8 1
mcl8k 8192 270 0 270 1 0 1 1 0 8 1
mcl4k 4096 41 0 41 1 0 1 1 0 8 1
mcl2k2 2112 5 0 5 1 0 1 1 0 8 1
mcl2k 2048 41794 0 41693 39 19 20 38 0 8 7
mtagpl 96 116 0 116 1 0 1 1 0 8 1
mbufpl 256 133358 0 133148 167 146 21 61 0 8 5
bufpl 280 22783 0 11884 779 0 779 779 0 8 0
bufpl: pool(0xffffffff82d56238:bufpl): page inconsistency: page 0x0; at page head addr 0xfffffd8064e95f90 (p 0xfffffd8064e95000)
anonpl 24 1026970 0 1020988 72 0 72 72 0 188 7
amapchunkpl 152 200207 0 199565 48 0 48 48 0 158 17
amappl16 200 25504 0 25348 75 54 21 23 0 8 8
amappl15 192 33 0 32 1 0 1 1 0 8 0
amappl14 184 638 0 627 2 0 2 2 0 8 1
amappl13 176 18 0 18 1 0 1 1 0 8 1
amappl12 168 10633 0 10607 2 0 2 2 0 8 0
amappl11 160 51 0 46 1 0 1 1 0 8 0
amappl10 152 242 0 232 1 0 1 1 0 8 0
amappl9 144 155 0 154 1 0 1 1 0 8 0
amappl8 136 631 0 599 2 0 2 2 0 8 0
amappl7 128 71 0 56 1 0 1 1 0 8 0
amappl6 120 2333 0 2320 2 0 2 2 0 8 1
amappl5 112 786 0 777 1 0 1 1 0 8 0
amappl4 104 1629 0 1599 2 0 2 2 0 8 1
amappl3 96 37216 0 37140 3 0 3 3 0 8 0
amappl2 88 8731 0 8673 3 0 3 3 0 8 1
amappl1 80 42563 0 42138 22 4 18 22 0 8 7
amappl 88 60718 0 60531 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 72 133 0 3 3 0 3 3 0 8 0
uaddrrnd 24 7752 0 7686 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 7752 0 7686 1 0 1 1 0 8 0
vmmpekpl 168 58495 0 58415 4 0 4 4 0 8 0
vmmpepl 168 517902 0 516215 112 0 112 112 0 357 29
vmsppl 344 7751 0 7686 7 0 7 7 0 8 0
rwobjpl 24 133084 0 121454 71 0 71 71 0 8 0
pdppl 4096 15510 0 15413 548 441 107 117 0 8 10
pvpl 32 2915370 0 2903532 366 22 344 366 0 265 208
pmappl 216 7751 0 7686 5 0 5 5 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 1142 0 736 13 0 13 13 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(ffffffff829300a1) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e4dec,ffffffff828f079e,eb,ffffffff8286ff11) at __assert+0x29 sys/kern/subr_prf.c:157
buf_unmap(fffffd8064e959d8) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235
buf_map(fffffd8061643368) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117
buf_get(fffffd806b553058,31,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175
getblk(fffffd806b553058,31,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044
ffs2_balloc(fffffd80774992d0,c4000,4000,fffffd807f7d7958,0,ffff80002db192d8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684
ffs_write(ffff80002db19360) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd806b553058,ffff80002db19580,1,fffffd807f7d7958) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_write(fffffd806c248f10,ffff80002db19580,1) at vn_write+0x19f sys/kern/vfs_vnops.c:408
dofilewritev(ffff80002a62d200,6,ffff80002db19580,1,ffff80002db19640) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375
sys_pwritev(ffff80002a62d200,ffff80002db196f0,ffff80002db19640) at sys_pwritev+0xb6 sys/kern/vfs_syscalls.c:3387
syscall(ffff80002db196f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4a2973606f0, 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(ffffffff829300a1) at panic+0x165 sys/kern/subr_prf.c:198
__assert(ffffffff828e4dec,ffffffff828f079e,eb,ffffffff8286ff11) at __assert+0x29 sys/kern/subr_prf.c:157
buf_unmap(fffffd8064e959d8) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235
buf_map(fffffd8061643368) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117
buf_get(fffffd806b553058,31,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175
getblk(fffffd806b553058,31,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044
ffs2_balloc(fffffd80774992d0,c4000,4000,fffffd807f7d7958,0,ffff80002db192d8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684
ffs_write(ffff80002db19360) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd806b553058,ffff80002db19580,1,fffffd807f7d7958) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245
vn_write(fffffd806c248f10,ffff80002db19580,1) at vn_write+0x19f sys/kern/vfs_vnops.c:408
dofilewritev(ffff80002a62d200,6,ffff80002db19580,1,ffff80002db19640) at dofilewritev+0x1a9 sys/kern/sys_generic.c:375
sys_pwritev(ffff80002a62d200,ffff80002db196f0,ffff80002db19640) at sys_pwritev+0xb6 sys/kern/vfs_syscalls.c:3387
syscall(ffff80002db196f0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4a2973606f0, count: -15