uvm_fault(0xffffffff8354a888, 0xffff800015792004, 0, 1) -> d
kernel: page fault trap, code=0
Stopped at ffs_fragextend+0x1d7: movl 0x4(%r13),%r14d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
162169 64340 0 0 0 1 syz-executor
*276784 46573 0 0x2 0x1 0K syz-executor
ffs_fragextend(fffffd8063a94340,4,78a80,3800,4000) at ffs_fragextend+0x1d7 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_fragextend(fffffd8063a94340,4,78a80,3800,4000) at ffs_fragextend+0x1d7 sys/ufs/ffs/ffs_alloc.c:890
ffs_realloccg(fffffd8063a94340,8,78a80,3800,4000,fffffd807f7d3618,aaf6c1756f221a5a,fffffd806e10b670) at ffs_realloccg+0x549 sys/ufs/ffs/ffs_alloc.c:225
ffs2_balloc(fffffd8063a94340,237d6,5c,fffffd807f7d3618,1,ffff80002a0d5d28) at ffs2_balloc+0x547 sys/ufs/ffs/ffs_balloc.c:516
ffs_write(ffff80002a0d5db0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd80735e6ce8,ffff80002a0d5e68,3,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000371ce2b0,fffffd80735e6ce8,fffffd807f7d3618,ffff80002a0d5f38,ffff80002a0d5f10) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000371ce2b0,ffffffff83002720,ffff80002a0d6030,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000371ce2b0,ffff80002a0d6170,ffff80002a0d60c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292
syscall(ffff80002a0d6170) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0d6170) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70b5bac378b0, count: 5
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(0xffffffff8354a888, 0xffff800015792004, 0, 1) -> d
ddb{0}> trace
ffs_fragextend(fffffd8063a94340,4,78a80,3800,4000) at ffs_fragextend+0x1d7 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_fragextend(fffffd8063a94340,4,78a80,3800,4000) at ffs_fragextend+0x1d7 sys/ufs/ffs/ffs_alloc.c:890
ffs_realloccg(fffffd8063a94340,8,78a80,3800,4000,fffffd807f7d3618,aaf6c1756f221a5a,fffffd806e10b670) at ffs_realloccg+0x549 sys/ufs/ffs/ffs_alloc.c:225
ffs2_balloc(fffffd8063a94340,237d6,5c,fffffd807f7d3618,1,ffff80002a0d5d28) at ffs2_balloc+0x547 sys/ufs/ffs/ffs_balloc.c:516
ffs_write(ffff80002a0d5db0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd80735e6ce8,ffff80002a0d5e68,3,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000371ce2b0,fffffd80735e6ce8,fffffd807f7d3618,ffff80002a0d5f38,ffff80002a0d5f10) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000371ce2b0,ffffffff83002720,ffff80002a0d6030,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000371ce2b0,ffff80002a0d6170,ffff80002a0d60c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292
syscall(ffff80002a0d6170) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0d6170) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70b5bac378b0, count: -10
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80002a0d5a60
rbx 0xffff800000a5f000
rdx 0
rcx 0xffff8000371ce2b0
rax 0xffffffff83454ff0 cpu_info_full_primary+0x1ff0
r8 0xffffffffffffffff
r9 0xfffffd807f7d3618
r10 0xffff80002a0d5c18
r11 0x253641ba7276617f
r12 0xfffffd806e374258
r13 0xffff800015792000
r14 0
r15 0x8
rip 0xffffffff821f8387 ffs_fragextend+0x1d7
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002a0d5980
ss 0x10
ffs_fragextend+0x1d7: movl 0x4(%r13),%r14d
ddb{0}> show proc
PROC (syz-executor) tid=276784 pid=46573 tcnt=1 stat=onproc
flags process=2<EXEC> proc=1<INKTR>
runpri=50, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff800029fd9be0,0xffff8000371cfc10
process=0xffff800029fe96b0 user=0xffff80002a0d1000, vmspace=0xfffffd806c4418b0
estcpu=36, cpticks=3, pctcpu=0.6, user=1, sys=8, intr=1
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
64340 162169 89873 0 7 0 syz-executor
64340 134361 89873 0 2 0x4000000 syz-executor
27631 257648 21174 0 2 0 syz-executor
27631 244832 21174 0 3 0x4000080 ttyout syz-executor
27631 393816 21174 0 2 0x4000001 syz-executor
27631 402994 21174 0 3 0x4000080 fsleep syz-executor
5528 456635 56220 0 2 0x1 syz-executor
5528 189372 56220 0 3 0x4000080 fsleep syz-executor
57002 199852 46573 0 2 0 syz-executor
57002 66652 46573 0 2 0x4000000 syz-executor
57002 103147 46573 0 3 0x4000080 fsleep syz-executor
75375 476367 61669 0 2 0x11 syz-executor
75375 492570 61669 0 3 0x4000090 fsleep syz-executor
75375 513045 61669 0 3 0x4000090 fsleep syz-executor
11346 143541 56841 0 2 0x4000001 syz-executor
11346 127506 56841 0 2 0x4000001 syz-executor
67131 2100 41298 0 2 0x1 syz-executor
67131 58113 41298 0 3 0x4000080 kqread syz-executor
67131 120649 41298 0 3 0x4000080 fsleep syz-executor
41298 259915 8880 0 2 0x3 syz-executor
89873 291652 8880 0 2 0x3 syz-executor
*46573 276784 8880 0 7 0x3 syz-executor
61669 16308 8880 0 3 0x82 nanoslp syz-executor
56220 383528 8880 0 3 0x82 nanoslp syz-executor
56841 80982 8880 0 2 0x3 syz-executor
21174 419964 8880 0 2 0x3 syz-executor
21203 230661 0 0 3 0x14280 nfsidl nfsio
6684 194983 0 0 3 0x14280 nfsidl nfsio
44681 71260 0 0 3 0x14280 nfsidl nfsio
80392 373345 0 0 3 0x14280 nfsidl nfsio
25649 85835 0 0 3 0x14280 nfsidl nfsio
70694 301681 0 0 3 0x14280 nfsidl nfsio
69697 24001 0 0 3 0x14280 nfsidl nfsio
4898 288517 0 0 3 0x14280 nfsidl nfsio
12761 354049 0 0 3 0x14280 nfsidl nfsio
84971 73646 0 0 3 0x14280 nfsidl nfsio
39586 131510 0 0 3 0x14280 nfsidl nfsio
51810 397380 0 0 3 0x14280 nfsidl nfsio
69735 464033 0 0 3 0x14280 nfsidl nfsio
61425 403285 0 0 3 0x14280 nfsidl nfsio
27481 515961 0 0 3 0x14280 nfsidl nfsio
96863 428043 0 0 3 0x14280 nfsidl nfsio
2022 409030 0 0 3 0x14280 nfsidl nfsio
24772 505281 0 0 3 0x14280 nfsidl nfsio
40321 498123 0 0 3 0x14280 nfsidl nfsio
22935 195342 0 0 3 0x14280 nfsidl nfsio
39077 335789 0 0 3 0x14200 bored sosplice
8880 230576 23060 0 3 0x82 wait syz-executor
23060 449804 51798 0 3 0x10008a sigsusp ksh
51798 66081 48289 0 3 0x98 kqread sshd-session
48289 105900 99681 0 3 0x92 kqread sshd-session
21177 468256 1 0 3 0x100083 ttyin getty
99681 493728 1 0 3 0x88 kqread sshd
85102 416097 23800 74 3 0x1100092 bpf pflogd
23800 52604 1 0 3 0x80 sbwait pflogd
12987 310617 21758 73 3 0x1100090 kqread syslogd
21758 153335 1 0 3 0x100082 sbwait syslogd
26501 315696 1 0 3 0x100080 kqread resolvd
93527 141599 69430 77 3 0x100092 kqread dhcpleased
77161 306898 69430 77 3 0x100092 kqread dhcpleased
69430 273218 1 0 3 0x80 kqread dhcpleased
11758 398921 0 0 3 0x14200 bored smr
97993 151965 0 0 2 0x14200 zerothread
70859 26991 0 0 3 0x14200 aiodoned aiodoned
93393 129108 0 0 3 0x14200 syncer update
43873 275630 0 0 3 0x14200 cleaner cleaner
56939 310317 0 0 3 0x14200 reaper reaper
65263 188322 0 0 3 0x14200 pgdaemon pagedaemon
23728 444945 0 0 3 0x14200 bored viomb
31403 335470 0 0 3 0x40014200 acpi0 acpi0
3635 7889 0 0 3 0x40014200 idle1
22702 101933 0 0 3 0x14200 bored softnet3
74474 115794 0 0 3 0x14200 bored softnet2
76245 381326 0 0 3 0x14200 bored softnet1
10621 142140 0 0 3 0x14200 bored softnet0
58040 15845 0 0 3 0x14200 bored systqmp
667 47197 0 0 3 0x14200 bored systq
32325 441014 0 0 3 0x14200 tmoslp softclockmp
66178 116561 0 0 3 0x40014200 tmoslp softclock
25337 305615 0 0 3 0x40014200 idle0
1 32894 0 0 3 0x80082 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 57002 (syz-executor) thread 0xffff80002a029bf8 (66652)
exclusive rwlock netlock r = 0 (0xffffffff834033e0)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 socreate+0x21a sys/kern/uipc_socket.c:215
#2 sys_socket+0x124 sys/kern/uipc_syscalls.c:101
#3 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#3 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#4 Xsyscall+0x128
Process 46573 (syz-executor) thread 0xffff8000371ce2b0 (276784)
exclusive rrwlock inode r = 0 (0xfffffd8063a943d8)
#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 ktrwriteraw+0x172 sys/kern/kern_ktrace.c:679
#7 ktrstruct+0x19a sys/kern/kern_ktrace.c:308
#8 sys_nanosleep+0x109 sys/kern/kern_time.c:292
#9 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#9 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#10 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83561d10)
#0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151
#1 ktrstruct+0xe2 sys/kern/kern_ktrace.c:307
#2 sys_nanosleep+0x109 sys/kern/kern_time.c:292
#3 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
#3 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
#4 Xsyscall+0x128
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10206 10174K 10481K 166960K 12390 0
pcb 17 16K 17K 166960K 296 0
rtable 218 7K 8K 166960K 1370 0
pf 37 18K 22K 166960K 168 0
ifaddr 44 8K 8K 166960K 189 0
ifgroup 55 2K 2K 166960K 211 0
sysctl 2 0K 0K 166960K 4 0
counters 64 36K 36K 166960K 146 0
ioctlops 0 0K 4K 166960K 1580 0
iov 0 0K 16K 166960K 51 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1405 88K 89K 166960K 2440 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 24K 28K 166960K 16 0
VM map 2 1K 1K 166960K 2 0
sem 12 0K 0K 166960K 30 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1690 195K 286K 166960K 12418 0
file desc 17 61K 93K 166960K 1347 0
sigio 0 0K 0K 166960K 16 0
proc 72 91K 152K 166960K 1438 0
subproc 104 6K 7K 166960K 494 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 2 0K 0K 166960K 92 0
in_multi 99 7K 7K 166960K 465 0
ether_multi 1 0K 0K 166960K 4 0
mrt 1 0K 0K 166960K 4 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 858 0
pfkey data 0 0K 0K 166960K 2 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 246 74K 98K 166960K 12820 0
UVM aobj 25 6K 6K 166960K 28 0
pinsyscall 42 84K 106K 166960K 3206 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 2 0K 0K 166960K 112 0
NDP 12 0K 2K 166960K 134 0
temp 75 6824K 6892K 166960K 45187 0
kqueue 14 22K 28K 166960K 135 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 120 148 0 145 1 0 1 1 0 8 0
rtentry 112 483 0 384 4 1 3 4 0 8 0
unpcb 144 997 0 976 10 6 4 6 0 8 3
syncache 336 8 0 8 6 5 1 1 0 8 1
tcpqe 32 3 0 3 3 2 1 1 0 8 1
tcpcb 808 682 0 675 27 24 3 8 0 8 1
arp 120 85 0 67 1 0 1 1 0 8 0
ipq 40 2 0 0 1 0 1 1 0 8 0
ipqe 40 34 0 32 1 0 1 1 0 8 0
inpcb 336 1775 0 1759 33 29 4 7 0 8 1
nd6 136 128 0 104 1 0 1 1 0 8 0
pkpcb 40 9 0 9 4 3 1 1 0 8 1
kcovpl 48 38 0 30 1 0 1 1 0 8 0
ppxss 1168 6 0 6 3 3 0 1 0 8 0
pfstscr 40 1 0 1 1 1 0 1 0 8 0
pffrag 232 7 0 7 1 1 0 1 0 482 0
pffrnode 88 7 0 7 1 1 0 1 0 8 0
pffrent 40 10 0 10 1 1 0 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 1 0 0 1 0 1 1 0 8 0
pfanchor 1288 3 0 0 1 0 1 1 0 8 0
pftag 88 2 0 0 1 0 1 1 0 8 0
pfstitem 24 44 0 40 1 0 1 1 0 8 0
pfstkey 128 45 0 41 2 0 2 2 0 8 0
pfstate 376 44 0 41 5 2 3 5 0 8 1
pfrule 1344 30 0 23 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 1936 0 1488 32 2 30 30 0 8 2
art_table 32 1937 0 1488 4 0 4 4 0 8 0
art_node 16 482 0 394 1 0 1 1 0 8 0
sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0
semapl 112 25 0 15 1 0 1 1 0 8 0
shmpl 112 25 0 3 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 3030 0 1472 98 0 98 98 0 8 0
ffsino 272 3031 0 1473 105 0 105 105 0 8 0
nchpl 144 4384 0 2649 65 0 65 65 0 8 0
uvmvnodes 80 3900 0 0 80 0 80 80 0 8 0
vnodes 216 3900 0 0 217 0 217 217 0 8 0
namei 1024 17244 0 17244 8 7 1 4 0 8 1
percpumem 16 87 0 41 1 0 1 1 0 8 0
kstatmem 264 106 0 82 2 0 2 2 0 8 0
acpiwqpl 32 1 0 1 1 0 1 1 1 8 1
scsiplug 72 4 0 4 4 3 1 1 0 8 1
scxspl 216 27202 0 27202 10 9 1 7 1 8 1
plimitpl 152 311 0 293 1 0 1 1 0 8 0
sigapl 424 1609 0 1539 10 1 9 9 0 8 0
futexpl 64 12545 0 12539 5 4 1 1 0 8 0
knotepl 120 542 0 0 16 0 16 16 0 8 0
kqueuepl 216 347 0 334 7 6 1 5 0 8 0
pipepl 320 340 0 311 7 4 3 7 0 8 0
fdescpl 496 1569 0 1538 6 1 5 5 0 8 0
filepl 152 9213 0 8943 34 21 13 20 0 8 1
lockfpl 104 453 0 449 1 0 1 1 0 8 0
lockfspl 48 176 0 173 1 0 1 1 0 8 0
sessionpl 144 54 0 45 1 0 1 1 0 8 0
pgrppl 48 98 0 81 1 0 1 1 0 8 0
ucredpl 104 1248 0 1234 1 0 1 1 0 8 0
zombiepl 144 1991 0 1990 1 0 1 1 0 8 0
processpl 1160 1609 0 1539 7 1 6 6 0 8 0
procpl 648 3038 0 2956 8 0 8 8 0 8 0
sosppl 168 14 0 14 2 2 0 1 0 8 0
sockpl 664 2941 0 2901 38 29 9 14 0 8 4
mcl64k 65536 2 0 0 1 0 1 1 0 8 0
mcl16k 16384 1 0 0 1 0 1 1 0 8 0
mcl9k 9216 1 0 0 1 0 1 1 0 8 0
mcl8k 8192 7 0 0 1 0 1 1 0 8 0
mcl4k 4096 3 0 0 1 0 1 1 0 8 0
mcl2k 2048 227 0 0 29 1 28 29 0 8 0
mtagpl 96 13 0 0 1 0 1 1 0 8 0
mbufpl 256 385 0 0 22 0 22 22 0 8 0
bufpl 280 8314 0 2168 442 0 442 442 0 8 0
anonpl 24 301153 0 295534 123 49 74 78 0 185 34
amapchunkpl 152 41363 0 40708 54 21 33 43 0 158 6
amappl16 200 6796 0 6776 56 44 12 15 0 8 10
amappl15 192 10 0 9 1 0 1 1 0 8 0
amappl14 184 220 0 208 1 0 1 1 0 8 0
amappl13 176 7 0 7 1 1 0 1 0 8 0
amappl12 168 2699 0 2668 3 1 2 2 0 8 0
amappl11 160 52 0 38 1 0 1 1 0 8 0
amappl10 152 15 0 15 1 1 0 1 0 8 0
amappl9 144 235 0 235 1 1 0 1 0 8 0
amappl8 136 48 0 46 1 0 1 1 0 8 0
amappl7 128 199 0 187 1 0 1 1 0 8 0
amappl6 120 466 0 464 1 0 1 1 0 8 0
amappl5 112 254 0 242 1 0 1 1 0 8 0
amappl4 104 411 0 392 1 0 1 1 0 8 0
amappl3 96 7901 0 7779 4 0 4 4 0 8 0
amappl2 88 1105 0 1036 2 0 2 2 0 8 0
amappl1 80 13359 0 12789 15 1 14 14 0 8 0
amappl 88 12132 0 11949 5 0 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 27 0 3 1 0 1 1 0 8 0
uaddrrnd 24 1569 0 1538 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1569 0 1538 1 0 1 1 0 8 0
vmmpekpl 168 14337 0 14276 5 1 4 4 0 8 0
vmmpepl 168 103619 0 101741 125 29 96 96 0 357 8
vmsppl 440 1568 0 1538 6 2 4 5 0 8 0
rwobjpl 56 36351 0 31482 75 3 72 72 0 8 2
pdppl 4096 3145 0 3076 150 75 75 85 0 8 6
pvpl 32 42524 0 0 344 1 343 343 0 265 0
pmappl 248 1568 0 1538 3 0 3 3 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 524 0 148 11 0 11 11 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
ffs_fragextend(fffffd8063a94340,4,78a80,3800,4000) at ffs_fragextend+0x1d7 ffs_cgread sys/ufs/ffs/ffs_alloc.c:856 [inline]
ffs_fragextend(fffffd8063a94340,4,78a80,3800,4000) at ffs_fragextend+0x1d7 sys/ufs/ffs/ffs_alloc.c:890
ffs_realloccg(fffffd8063a94340,8,78a80,3800,4000,fffffd807f7d3618,aaf6c1756f221a5a,fffffd806e10b670) at ffs_realloccg+0x549 sys/ufs/ffs/ffs_alloc.c:225
ffs2_balloc(fffffd8063a94340,237d6,5c,fffffd807f7d3618,1,ffff80002a0d5d28) at ffs2_balloc+0x547 sys/ufs/ffs/ffs_balloc.c:516
ffs_write(ffff80002a0d5db0) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345
VOP_WRITE(fffffd80735e6ce8,ffff80002a0d5e68,3,fffffd807f7d3618) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245
ktrwriteraw(ffff8000371ce2b0,fffffd80735e6ce8,fffffd807f7d3618,ffff80002a0d5f38,ffff80002a0d5f10) at ktrwriteraw+0x1bc sys/kern/kern_ktrace.c:682
ktrstruct(ffff8000371ce2b0,ffffffff83002720,ffff80002a0d6030,10) at ktrstruct+0x19a sys/kern/kern_ktrace.c:308
sys_nanosleep(ffff8000371ce2b0,ffff80002a0d6170,ffff80002a0d60c0) at sys_nanosleep+0x109 sys/kern/kern_time.c:292
syscall(ffff80002a0d6170) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a0d6170) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70b5bac378b0, count: -10
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
end of kernel
end trace frame: 0x701d78a9e0d0, count: 12
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
end of kernel
end trace frame: 0x701d78a9e0d0, count: -3