login: uvm_fault(0xfffff1007f22e730, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
TID PID UID PRFLAGS PFLAGS CPU COMMAND
dt_ioctl_record_stop(ffff800001649b00) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,1,2000,ffff80002a7374c8) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80002a7374c8) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002a7893a0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffff10070646d98,1,fffff10007ffd5b0,ffff80002a7374c8) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156
vn_closefile(fffff1007f160878,ffff80002a7374c8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffff1007f160878,ffff80002a7374c8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:621
fdrop(fffff1007f160878,ffff80002a7374c8) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffff1007f160878,ffff80002a7374c8) at closef+0x190 sys/kern/kern_descrip.c:1265
fdfree(ffff80002a7374c8) at fdfree+0x115 sys/kern/kern_descrip.c:1196
exit1(ffff80002a7374c8,0,0,1) at exit1+0x595 sys/kern/kern_exit.c:215
sys_exit(ffff80002a7374c8,ffff80002a789700,ffff80002a789650) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a789700) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a789700) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78e9fdba53d0, count: 3
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: uvm_fault(0xfffff1007f22e730, 0x0, 0, 1) -> e
ddb> show kasan
No such command
ddb> trace
dt_ioctl_record_stop(ffff800001649b00) at dt_ioctl_record_stop+0x108 sys/dev/dt/dt_dev.c:593
dtclose(11e5f,1,2000,ffff80002a7374c8) at dtclose+0xd9 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline]
dtclose(11e5f,1,2000,ffff80002a7374c8) at dtclose+0xd9 sys/dev/dt/dt_dev.c:239
spec_close(ffff80002a7893a0) at spec_close+0x466 sys/kern/spec_vnops.c:-1
VOP_CLOSE(fffff10070646d98,1,fffff10007ffd5b0,ffff80002a7374c8) at VOP_CLOSE+0x129 sys/kern/vfs_vops.c:156
vn_closefile(fffff1007f160878,ffff80002a7374c8) at vn_closefile+0x11d vn_close sys/kern/vfs_vnops.c:298 [inline]
vn_closefile(fffff1007f160878,ffff80002a7374c8) at vn_closefile+0x11d sys/kern/vfs_vnops.c:621
fdrop(fffff1007f160878,ffff80002a7374c8) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffff1007f160878,ffff80002a7374c8) at closef+0x190 sys/kern/kern_descrip.c:1265
fdfree(ffff80002a7374c8) at fdfree+0x115 sys/kern/kern_descrip.c:1196
exit1(ffff80002a7374c8,0,0,1) at exit1+0x595 sys/kern/kern_exit.c:215
sys_exit(ffff80002a7374c8,ffff80002a789700,ffff80002a789650) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a789700) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a789700) at syscall+0x962 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78e9fdba53d0, count: -12
ddb> show registers
rdi 0
rsi 0
rbp 0xffff80002a7892d0
rbx 0x1
rdx 0
rcx 0xffff80002a7374c8
rax 0xffffffff8396b8d0 dt_prov_static
r8 0
r9 0
r10 0x56e86899cd8601dd
r11 0xa5002ecf0b62999a
r12 0
r13 0
r14 0
r15 0xffff80000166fb00
rip 0xffffffff81046ee8 dt_ioctl_record_stop+0x108
cs 0x8
rflags 0x10207 __ALIGN_SIZE+0xf207
rsp 0xffff80002a7892a0
ss 0x10
dt_ioctl_record_stop+0x108: movq 0(%r14),%r14
ddb> show proc
PROC (syz-executor) tid=394252 pid=58758 tcnt=0 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
runpri=50, usrpri=50, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff80002a7374c8 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff80002a77c2b8,0xffff80002a778a80
process=0xffff800045ffad18 user=0xffff80002a784000, vmspace=0xfffff1007f22e730
estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
55268 189922 48755 0 3 0 0x80 fsleep syz-executor
55268 171212 48755 0 3 0 0x4000000 biowait syz-executor
13796 225050 23422 0 3 0 0x80 fsleep syz-executor
13796 313171 23422 0 3 0 0x4000000 smrbar syz-executor
13796 45632 23422 0 3 0 0x4000080 fsleep syz-executor
90138 513490 32644 0 3 0 0x80 fsleep syz-executor
90138 78689 32644 0 3 0 0x4000080 lockf syz-executor
48964 363856 49421 0 3 0x10 0x80 fsleep syz-executor
48964 354069 49421 0 3 0x10 0x4000080 ttyopn syz-executor
76320 493222 30018 0 3 0 0x80 fsleep syz-executor
76320 42748 30018 0 3 0 0x4000080 rest syz-executor
20638 452022 1 0 3 0x100003 0x80 ttyin getty
30018 328157 93204 0 3 0x2 0x80 nanoslp syz-executor
18552 496632 93204 0 3 0x2 0x80 nanoslp syz-executor
66541 289243 93204 0 3 0x2 0x80 wait syz-executor
23422 131733 93204 0 3 0x2 0x80 nanoslp syz-executor
48755 161723 93204 0 3 0x2 0x80 nanoslp syz-executor
49421 353380 93204 0 3 0x2 0x80 nanoslp syz-executor
32644 382188 93204 0 3 0x2 0x80 nanoslp syz-executor
83390 216269 93204 0 2 0x2 0x1 syz-executor
93204 53272 1 0 3 0x2 0x80 kqread syz-executor
66578 378918 0 0 3 0x14000 0x200 bored smr
57488 166344 0 0 2 0x14000 0x200 zerothread
65518 495514 0 0 3 0x14000 0x200 aiodoned aiodoned
99584 173726 0 0 3 0x14000 0x200 syncer update
10046 74311 0 0 3 0x14000 0x200 cleaner cleaner
70211 225572 0 0 2 0x14000 0x200 reaper
88757 215864 0 0 3 0x14000 0x200 pgdaemon pagedaemon
9730 343960 0 0 3 0x14000 0x200 bored viomb
86284 470469 0 0 3 0x14000 0x40000200 acpi0 acpi0
95288 215663 0 0 3 0x14000 0x200 bored softnet0
39748 95218 0 0 3 0x14000 0x200 smrbar systqmp
57768 329795 0 0 3 0x14000 0x200 bored systq
27408 132879 0 0 3 0x14000 0x40000200 tmoslp softclock
25956 35466 0 0 3 0x14000 0x40000200 idle0
1 381870 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11055 12272K 13218K 166960K 12667 0
pcb 21 13K 14K 166960K 108 0
rtable 232 7K 7K 166960K 392 0
pf 33 13K 17K 166960K 59 0
ifaddr 42 7K 7K 166960K 57 0
ifgroup 54 2K 2K 166960K 74 0
sysctl 2 1K 9K 166960K 6 0
counters 34 17K 18K 166960K 42 0
ioctlops 0 0K 4K 166960K 100 0
iov 0 0K 16K 166960K 14 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1426 90K 90K 166960K 1626 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 3 5K 5K 166960K 6 0
VM map 2 1K 1K 166960K 2 0
sem 13 2K 2K 166960K 15 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 16 61K 97K 166960K 305 0
sigio 0 0K 0K 166960K 5 0
proc 20 25K 124K 166960K 540 0
subproc 72 4K 4K 166960K 72 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 10 0
in_multi 88 5K 6K 166960K 103 0
ether_multi 1 0K 0K 166960K 1 0
mrt 2 0K 0K 166960K 15 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 97 440K 440K 166960K 97 0
exec 0 0K 1K 166960K 387 0
fusefs mount 1 32K 32K 166960K 1 0
pfkey data 0 0K 0K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 135 82K 175K 166960K 4359 0
UVM aobj 7 2K 2K 166960K 8 0
pinsyscall 19 38K 96K 166960K 1413 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 9 0
NDP 12 0K 2K 166960K 35 0
temp 37 9106K 9170K 166960K 7990 0
kqueue 1 2K 26K 166960K 68 0
SYN cache 2 16K 16K 166960K 2 0
ddb>