uvm_fault(0xfffffd806ada5028, 0x18, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at fill_kproc+0x4a: movq 0x18(%rax),%rax
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 38112 96237 32767 0x10 0x4000000 1K syz-executor
406036 92222 32767 0x10 0 0 syz-executor
fill_kproc(ffff8000fffe5d00,ffff800001604000,deafbeaddeafbead,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2064
sysctl_doproc(ffff80003c41a5f8,4,200000000100,ffff80003c41a628) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2026
kern_sysctl_dirs(42,ffff80003c41a5f8,4,200000000100,ffff80003c41a628,0,4329995f91d30a0e,ffff80003c41a5f8) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:445
kern_sysctl(ffff80003c41a5f4,5,200000000100,ffff80003c41a628,0,37,ab768e20f9fe698c) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736
sys_sysctl(ffff8000353bf4e8,ffff80003c41a760,ffff80003c41a6b0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c41a760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c41a760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4cad6b2a6f0, count: 8
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd806ada5028, 0x18, 0, 1) -> e
ddb{1}> trace
fill_kproc(ffff8000fffe5d00,ffff800001604000,deafbeaddeafbead,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2064
sysctl_doproc(ffff80003c41a5f8,4,200000000100,ffff80003c41a628) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2026
kern_sysctl_dirs(42,ffff80003c41a5f8,4,200000000100,ffff80003c41a628,0,4329995f91d30a0e,ffff80003c41a5f8) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:445
kern_sysctl(ffff80003c41a5f4,5,200000000100,ffff80003c41a628,0,37,ab768e20f9fe698c) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736
sys_sysctl(ffff8000353bf4e8,ffff80003c41a760,ffff80003c41a6b0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c41a760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c41a760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4cad6b2a6f0, count: -7
ddb{1}> show registers
rdi 0xffff8000fffe5d00
rsi 0xffff800001604000
rbp 0xffff80003c41a260
rbx 0xdeafbeaddeafbead
rdx 0
rcx 0xffff8000353bf4e8
rax 0
r8 0x7f7fffffc000
r9 0
r10 0x4f322b437aa27c51
r11 0xb8c8fdb1df7523e0
r12 0xffff800001604000
r13 0xdeafbeaddeafbead
r14 0xffff800001604000
r15 0xffff8000fffe5d00
rip 0xffffffff82c56d6a fill_kproc+0x4a
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c41a170
ss 0x10
fill_kproc+0x4a: movq 0x18(%rax),%rax
ddb{1}> show proc
PROC (syz-executor) tid=38112 pid=96237 tcnt=4 stat=onproc
flags process=10<SUGID> proc=4000000<THREAD>
runpri=17, usrpri=50, slppri=17, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff8000353bf250,0xffff8000353be2d0
process=0xffff8000fffe5830 user=0xffff80003c415000, vmspace=0xfffffd806ada5028
estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0
ddb{1}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
36462 176713 80853 32767 3 0x90 nanoslp syz-executor
36462 494224 80853 32767 3 0x4000090 fsleep syz-executor
36462 9936 80853 32767 3 0x4000090 fsleep syz-executor
36462 306584 80853 32767 3 0x4000090 fsleep syz-executor
35657 413937 11945 32767 2 0x10 syz-executor
35657 387934 11945 32767 3 0x4000090 fsleep syz-executor
96237 441079 86396 32767 3 0x90 nanoslp syz-executor
*96237 38112 86396 32767 7 0x4000010 syz-executor
96237 298441 86396 32767 3 0x4000090 fsleep syz-executor
96237 380283 86396 32767 3 0x4000090 fsleep syz-executor
83297 78763 31804 0 3 0x100082 sysctllk ndp
92222 406036 80649 32767 7 0x10 syz-executor
92222 103529 80649 32767 3 0x4000090 fsleep syz-executor
41671 259015 72421 0 3 0x100082 sysctllk arp
72421 476069 94574 0 3 0x10008a sigsusp sh
58088 131488 78069 0 3 0x82 sysctllk ifconfig
31804 411253 88966 0 3 0x10008a sigsusp sh
78069 254937 43768 0 3 0x10008a sigsusp sh
80649 490705 76154 32767 3 0x90 nanoslp syz-executor
43768 388209 84730 0 3 0x80 wait syz-executor
11945 14358 47682 32767 3 0x90 nanoslp syz-executor
94574 386835 33932 0 3 0x80 wait syz-executor
80853 408950 86296 32767 3 0x90 nanoslp syz-executor
59533 370407 60414 32767 3 0x10 biowait syz-executor
86396 511346 84774 32767 3 0x90 nanoslp syz-executor
88966 97548 78155 0 3 0x80 wait syz-executor
76154 110409 32104 0 3 0x82 wait syz-executor
84730 480414 32104 0 3 0x82 wait syz-executor
33932 325704 32104 0 3 0x82 wait syz-executor
86296 180974 32104 0 3 0x82 wait syz-executor
84774 346780 32104 0 3 0x82 wait syz-executor
60414 167944 32104 0 3 0x82 wait syz-executor
47682 199526 32104 0 3 0x82 wait syz-executor
78155 432562 32104 0 3 0x82 wait syz-executor
32104 275178 33209 0 3 0x82 kqread syz-executor
33209 477877 56889 0 3 0x10008a sigsusp ksh
56889 488283 35515 0 3 0x98 kqread sshd-session
35515 190906 1374 0 3 0x92 kqread sshd-session
3703 61465 1 0 3 0x100083 ttyin getty
1374 182842 1 0 3 0x88 kqread sshd
7315 184832 90774 73 3 0x1100090 kqread syslogd
90774 431714 1 0 3 0x100082 sbwait syslogd
57515 345056 1 0 3 0x100080 kqread resolvd
28032 345444 18886 77 3 0x100092 kqread dhcpleased
62157 83568 18886 77 3 0x100092 kqread dhcpleased
18886 494904 1 0 3 0x80 kqread dhcpleased
24075 182523 0 0 3 0x14200 bored smr
2514 225743 0 0 2 0x14200 zerothread
55145 502500 0 0 3 0x14200 aiodoned aiodoned
53366 106119 0 0 3 0x14200 syncer update
52374 245995 0 0 3 0x14200 cleaner cleaner
17094 330169 0 0 3 0x14200 reaper reaper
99621 312280 0 0 3 0x14200 pgdaemon pagedaemon
152 521846 0 0 3 0x14200 bored viomb
28778 417126 0 0 3 0x40014200 acpi0 acpi0
9757 41135 0 0 3 0x40014200 idle1
48428 312347 0 0 3 0x14200 bored softnet1
44949 328821 0 0 3 0x14200 bored softnet0
99060 482385 0 0 3 0x14200 smrbar systqmp
5312 413245 0 0 3 0x14200 bored systq
76982 342145 0 0 3 0x14200 tmoslp softclockmp
18295 140691 0 0 3 0x40014200 tmoslp softclock
3848 449095 0 0 3 0x40014200 idle0
1 171142 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{1}> show all locks
Process 96237 (syz-executor) thread 0xffff8000353bf4e8 (38112)
exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a70300)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1
#2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369
#3 biowait+0xc6 sys/kern/vfs_bio.c:1242
#4 ffs_read+0x325 sys/ufs/ffs/ffs_vnops.c:-1
#5 VOP_READ+0x101 sys/kern/vfs_vops.c:227
#6 uvn_io+0x4ed sys/uvm/uvm_vnode.c:-1
#7 uvn_get+0x31d sys/uvm/uvm_vnode.c:1075
#8 uvm_fault_lower_io+0x2ce sys/uvm/uvm_fault.c:1612
#9 uvm_fault_lower+0x28d sys/uvm/uvm_fault.c:1381
#10 uvm_fault+0x274 sys/uvm/uvm_fault.c:-1
#11 kpageflttrap+0x2f4 sys/arch/amd64/amd64/trap.c:283
#12 kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528
#13 alltraps_kern_meltdown+0x7b
#14 copyout+0x64
#15 kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:445
#16 kern_sysctl+0x139 sys/kern/kern_sysctl.c:736
#17 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
#18 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#18 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
exclusive rwlock sysctllk r = 0 (0xffffffff83929e98)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:192
#3 kern_sysctl_dirs+0x243 sys/kern/kern_sysctl.c:443
#4 kern_sysctl+0x139 sys/kern/kern_sysctl.c:736
#5 sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
#6 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#6 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
#7 Xsyscall+0x128
Process 92222 (syz-executor) thread 0xffff8000353bda10 (406036)
exclusive rwlock uobjlk r = 0 (0xfffffd806d5fb5a0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 uvm_fault+0x1e5 sys/uvm/uvm_fault.c:649
#3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#4 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#5 recall_trap+0x8
shared rwlock vmmaplk r = 0 (0xfffffd806a79f318)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413
#2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880
#3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693
#4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#7 recall_trap+0x8
Process 59533 (syz-executor) thread 0xffff8000fffee2b0 (370407)
exclusive rrwlock inode r = 0 (0xfffffd80694d0c50)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline]
#4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159
#5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1232
#6 ffs_inode_alloc+0x279 sys/ufs/ffs/ffs_alloc.c:393
#7 ufs_mkdir+0xfc sys/ufs/ufs/ufs_vnops.c:1112
#8 VOP_MKDIR+0x101 sys/kern/vfs_vops.c:394
#9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3143
#10 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#10 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#11 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffd806d3b0428)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x11c sys/kern/vfs_lookup.c:-1
#6 namei+0x7ca sys/kern/vfs_lookup.c:250
#7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3128
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
#9 Xsyscall+0x128
Process 99060 (systqmp) thread 0xffff8000ffffe7c8 (482385)
shared rwlock systqmp r = 0 (0xffffffff838ac728)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11048 12018K 12034K 166960K 12139 0
pcb 17 12K 12K 166960K 17 0
rtable 213 6K 6K 166960K 307 0
pf 31 16K 16K 166960K 31 0
ifaddr 39 6K 6K 166960K 41 0
ifgroup 50 2K 2K 166960K 50 0
sysctl 1 1K 9K 166960K 5 0
counters 70 37K 37K 166960K 70 0
ioctlops 0 0K 2K 166960K 27 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1287 81K 81K 166960K 1354 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 1K 166960K 2 0
VM map 2 1K 1K 166960K 2 0
sem 4 0K 0K 166960K 4 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1692 195K 286K 166960K 12470 0
file desc 28 105K 125K 166960K 144 0
proc 65 115K 163K 166960K 489 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 2 0
in_multi 85 6K 6K 166960K 85 0
ether_multi 1 0K 0K 166960K 1 0
mrt 0 0K 0K 166960K 2 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 31 148K 148K 166960K 31 0
exec 0 0K 1K 166960K 347 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 245 163K 168K 166960K 2820 0
UVM aobj 5 2K 2K 166960K 5 0
pinsyscall 51 102K 112K 166960K 1181 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 1 0
NDP 24 1K 1K 166960K 24 0
temp 35 9075K 9139K 166960K 3743 0
kqueue 13 20K 20K 166960K 22 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 26 0 0 1 0 1 1 0 8 0
rtpcb 120 31 0 26 1 0 1 1 0 8 0
rtentry 176 99 0 1 5 0 5 5 0 8 0
unpcb 144 37 0 22 1 0 1 1 0 8 0
syncache 336 3 0 3 1 0 1 1 0 8 1
tcpcb 736 12 0 7 1 0 1 1 0 8 0
arp 136 17 0 0 1 0 1 1 0 8 0
inpcb 328 70 0 59 1 0 1 1 0 8 0
nd6 152 18 0 0 1 0 1 1 0 8 0
kcovpl 48 8 0 0 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 394 0 0 25 0 25 25 0 8 0
art_table 40 395 0 0 4 0 4 4 0 8 0
art_node 32 99 0 8 1 0 1 1 0 8 0
semapl 112 2 0 0 1 0 1 1 0 8 0
shmpl 112 2 0 0 1 0 1 1 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1562 0 102 92 0 92 92 0 8 0
ffsino 296 1562 0 102 113 0 113 113 0 8 0
nchpl 144 1761 0 74 63 0 63 63 0 8 0
vnodes 216 1643 0 0 92 0 92 92 0 8 0
namei 1024 5155 0 5154 2 0 2 2 0 8 1
percpumem 16 50 0 0 1 0 1 1 0 8 0
kstatmem 264 24 0 0 2 0 2 2 0 8 0
scxspl 216 6017 0 6016 4 1 3 3 1 8 2
plimitpl 152 35 0 11 1 0 1 1 0 8 0
sigapl 424 428 0 372 7 0 7 7 0 8 0
knotepl 120 50 0 0 2 0 2 2 0 8 0
kqueuepl 224 18 0 9 1 0 1 1 0 8 0
pipepl 344 115 0 88 3 0 3 3 0 8 0
fdescpl 528 412 0 372 4 0 4 4 0 8 0
filepl 160 1516 0 1304 10 0 10 10 0 8 0
lockfpl 104 11 0 8 1 0 1 1 0 8 0
lockfspl 48 6 0 3 1 0 1 1 0 8 0
sessionpl 144 21 0 5 1 0 1 1 0 8 0
pgrppl 48 29 0 5 1 0 1 1 0 8 0
ucredpl 104 81 0 65 1 0 1 1 0 8 0
zombiepl 144 372 0 372 1 0 1 1 0 8 1
processpl 1232 428 0 372 5 0 5 5 0 8 0
procpl 664 459 0 395 6 0 6 6 0 8 0
sockpl 752 138 0 107 4 0 4 4 0 8 0
mcl8k 8192 1 0 0 1 0 1 1 0 8 0
mcl4k 4096 105 0 0 14 0 14 14 0 8 0
mcl2k 2048 13 0 0 2 0 2 2 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 146 0 0 10 0 10 10 0 8 0
bufpl 280 2221 0 102 152 0 152 152 0 8 0
anonpl 32 3753 0 0 31 0 31 31 0 246 0
amapchunkpl 152 8023 0 7524 21 0 21 21 0 158 1
amappl16 200 2011 0 1998 5 0 5 5 0 8 4
amappl15 192 3 0 3 1 0 1 1 0 8 1
amappl14 184 398 0 394 1 0 1 1 0 8 0
amappl13 176 106 0 94 1 0 1 1 0 8 0
amappl12 168 635 0 601 2 0 2 2 0 8 0
amappl11 160 19 0 18 1 0 1 1 0 8 0
amappl10 152 61 0 51 1 0 1 1 0 8 0
amappl9 144 264 0 264 1 0 1 1 0 8 1
amappl8 136 94 0 91 1 0 1 1 0 8 0
amappl7 128 134 0 120 1 0 1 1 0 8 0
amappl6 120 153 0 148 1 0 1 1 0 8 0
amappl5 112 89 0 82 1 0 1 1 0 8 0
amappl4 104 241 0 225 1 0 1 1 0 8 0
amappl3 96 1404 0 1284 5 1 4 4 0 8 0
amappl2 88 472 0 415 2 0 2 2 0 8 0
amappl1 80 8899 0 8255 14 0 14 14 0 8 0
amappl 88 2187 0 2016 4 0 4 4 0 92 0
uvmvnodes 80 96 0 0 2 0 2 2 0 8 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 4 0 0 1 0 1 1 0 8 0
uaddrrnd 24 412 0 372 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 412 0 372 1 0 1 1 0 8 0
vmmpekpl 168 4937 0 4907 2 0 2 2 0 8 0
vmmpepl 168 34194 0 32104 94 0 94 94 0 357 1
vmsppl 488 411 0 372 7 1 6 6 0 8 0
rwobjpl 80 13201 0 12171 22 0 22 22 0 8 0
pdppl 4096 831 0 744 107 10 97 97 0 8 10
pvpl 32 9301 0 0 76 0 76 76 0 265 0
pmappl 256 411 0 372 4 1 3 3 0 8 0
extentpl 40 45 0 27 1 0 1 1 0 8 0
phpool 112 266 0 13 8 0 8 8 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83952ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x192 sys/kern/kern_lock.c:173
intr_handler(ffff80003c3efbe0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173
uvm_fault(fffffd806a79f218,8d0654000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650
upageflttrap(ffff80003c3eff90,8d0654000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c3eff90) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7eeaea879cb0, count: 3
ddb{0}> trace
x86_ipi_db(ffffffff83952ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x192 sys/kern/kern_lock.c:173
intr_handler(ffff80003c3efbe0,ffff8000002a3480) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560
Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline]
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a6fb00) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173
uvm_fault(fffffd806a79f218,8d0654000,0,1) at uvm_fault+0x1ea sys/uvm/uvm_fault.c:650
upageflttrap(ffff80003c3eff90,8d0654000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c3eff90) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7eeaea879cb0, count: -12
ddb{0}> machine ddbcpu 1
Stopped at fill_kproc+0x4a: movq 0x18(%rax),%rax
fill_kproc(ffff8000fffe5d00,ffff800001604000,deafbeaddeafbead,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2064
sysctl_doproc(ffff80003c41a5f8,4,200000000100,ffff80003c41a628) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2026
kern_sysctl_dirs(42,ffff80003c41a5f8,4,200000000100,ffff80003c41a628,0,4329995f91d30a0e,ffff80003c41a5f8) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:445
kern_sysctl(ffff80003c41a5f4,5,200000000100,ffff80003c41a628,0,37,ab768e20f9fe698c) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736
sys_sysctl(ffff8000353bf4e8,ffff80003c41a760,ffff80003c41a6b0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c41a760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c41a760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4cad6b2a6f0, count: 8
ddb{1}> trace
fill_kproc(ffff8000fffe5d00,ffff800001604000,deafbeaddeafbead,0) at fill_kproc+0x4a sys/kern/kern_sysctl.c:2064
sysctl_doproc(ffff80003c41a5f8,4,200000000100,ffff80003c41a628) at sysctl_doproc+0x6e6 sys/kern/kern_sysctl.c:2026
kern_sysctl_dirs(42,ffff80003c41a5f8,4,200000000100,ffff80003c41a628,0,4329995f91d30a0e,ffff80003c41a5f8) at kern_sysctl_dirs+0x375 sys/kern/kern_sysctl.c:445
kern_sysctl(ffff80003c41a5f4,5,200000000100,ffff80003c41a628,0,37,ab768e20f9fe698c) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:736
sys_sysctl(ffff8000353bf4e8,ffff80003c41a760,ffff80003c41a6b0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1
syscall(ffff80003c41a760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c41a760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x4cad6b2a6f0, count: -7