kernel: protection fault trap, code=0
Stopped at amap_lookups+0x1e0: movl 0x10(%r15),%r14d
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
the kernel did not panic
ddb{0}> show kasan
No such command
ddb{0}> trace
amap_lookups(fffff5806ccbf0b8,7000,ffff80003c3d66a0,8) at amap_lookups+0x1e0 amap_chunk_get sys/uvm/uvm_amap.c:118 [inline]
amap_lookups(fffff5806ccbf0b8,7000,ffff80003c3d66a0,8) at amap_lookups+0x1e0 sys/uvm/uvm_amap.c:1168
uvm_fault_check(ffff80003c3d67a0,ffff80003c3d67d8,ffff80003c3d6810,0) at uvm_fault_check+0x8d2 sys/uvm/uvm_fault.c:840
uvm_fault(fffff5806d104218,a6944878000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627
upageflttrap(ffff80003c3d6940,a6944878d90) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c3d6940) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x71f7017429d0, count: -6
ddb{0}> show registers
rdi 0x11
rsi 0x20
rbp 0xffff80003c3d65f0
rbx 0
rdx 0
rcx 0
rax 0xffff800000c43510
r8 0xffffffff81b36de0 uvm_map_inentry_sp
r9 0
r10 0
r11 0x255afc523b25b772
r12 0xf
r13 0
r14 0x20
r15 0x120a500004000
rip 0xffffffff816a8250 amap_lookups+0x1e0
cs 0x8
rflags 0x10206 __ALIGN_SIZE+0xf206
rsp 0xffff80003c3d6560
ss 0
amap_lookups+0x1e0: movl 0x10(%r15),%r14d
ddb{0}> show proc
PROC (syz-executor) tid=56671 pid=86393 tcnt=4 stat=onproc
flags process=10<SUGID> proc=0
runpri=86, usrpri=86, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff800045fe4028,0xffff800045fe6560
process=0xffff800045fe04f0 user=0xffff80003c3d1000, vmspace=0xfffff5806d104218
estcpu=36, cpticks=3, pctcpu=0.0, user=1, sys=2, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
66450 517592 66249 0 2 0x82 sshd-auth
*86393 56671 77230 32767 7 0x10 syz-executor
86393 323767 77230 32767 3 0x4000090 fsleep syz-executor
86393 450721 77230 32767 3 0x4000090 fsleep syz-executor
86393 241728 77230 32767 3 0x4000090 fsleep syz-executor
53860 442979 54616 32767 2 0x10 syz-executor
53860 202245 54616 32767 3 0x4000090 fsleep syz-executor
53860 76197 54616 32767 3 0x4000090 fsleep syz-executor
6160 210259 68324 32767 3 0x90 nanoslp syz-executor
6160 278032 68324 32767 3 0x4000090 fifor syz-executor
6160 265282 68324 32767 3 0x4000090 fifor syz-executor
6160 419119 68324 32767 3 0x4000090 fsleep syz-executor
66249 6668 71600 0 7 0x2 sshd-session
44568 215784 96739 32767 3 0x90 nanoslp syz-executor
44568 324673 96739 32767 3 0x4000090 piperd syz-executor
44568 87871 96739 32767 3 0x4000090 fsleep syz-executor
89251 282447 8717 32767 3 0x90 nanoslp syz-executor
89251 505311 8717 32767 3 0x4000090 ttyin syz-executor
1552 287484 94984 32767 3 0x90 nanoslp syz-executor
1552 507355 94984 32767 3 0x4000090 kqsel syz-executor
1552 177331 94984 32767 3 0x4000090 fsleep syz-executor
96739 83333 49762 32767 3 0x90 nanoslp syz-executor
77230 163887 65806 32767 3 0x90 nanoslp syz-executor
94984 320939 17153 32767 3 0x90 nanoslp syz-executor
68324 95607 18975 32767 3 0x90 nanoslp syz-executor
35811 465560 77138 32767 2 0x10000090 syz-executor
59886 401446 14499 32767 3 0x90 wait syz-executor
8717 83117 3910 32767 3 0x90 nanoslp syz-executor
54616 249154 97331 32767 3 0x90 nanoslp syz-executor
49762 73049 33898 0 3 0x82 wait syz-executor
77138 409712 33898 0 3 0x82 wait syz-executor
17153 319412 33898 0 3 0x82 wait syz-executor
14499 369728 33898 0 3 0x82 wait syz-executor
65806 302234 33898 0 3 0x82 wait syz-executor
97331 510040 33898 0 3 0x82 wait syz-executor
3910 475432 33898 0 3 0x82 wait syz-executor
18975 94425 33898 0 3 0x82 wait syz-executor
33898 76546 27648 0 3 0x82 kqread syz-executor
27648 53716 79293 0 3 0x10008a sigsusp ksh
79293 192481 64934 0 3 0x98 kqread sshd-session
64934 63494 71600 0 3 0x92 kqread sshd-session
82062 385292 1 0 3 0x100083 ttyin getty
71600 261431 1 0 3 0x88 kqread sshd
4085 494986 30380 73 3 0x1100090 kqread syslogd
30380 31315 1 0 3 0x100082 sbwait syslogd
26639 467495 1 0 3 0x100080 kqread resolvd
63789 326993 86477 77 3 0x100092 kqread dhcpleased
660 497950 86477 77 3 0x100092 kqread dhcpleased
86477 178379 1 0 3 0x80 kqread dhcpleased
51158 102610 0 0 3 0x14200 bored smr
98432 150090 0 0 2 0x14200 zerothread
1449 256722 0 0 3 0x14200 aiodoned aiodoned
45989 120886 0 0 3 0x14200 syncer update
14669 194792 0 0 3 0x14200 cleaner cleaner
92908 240045 0 0 3 0x14200 reaper reaper
53634 230722 0 0 3 0x14200 pgdaemon pagedaemon
82068 84738 0 0 3 0x14200 bored viomb
14146 119835 0 0 3 0x40014200 acpi0 acpi0
94359 407718 0 0 3 0x40014200 idle1
54935 518318 0 0 3 0x14200 bored softnet1
12156 257966 0 0 3 0x14200 bored softnet0
52219 337535 0 0 3 0x14200 bored systqmp
41206 515671 0 0 3 0x14200 bored systq
82539 5227 0 0 3 0x14200 tmoslp softclockmp
58525 200048 0 0 3 0x40014200 tmoslp softclock
90 142258 0 0 3 0x40014200 idle0
1 357415 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
Process 86393 (syz-executor) thread 0xffff800045fe7778 (56671)
shared rwlock amaplk r = 0 (0xfffff5806e3b74e0)
#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 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834
#3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627
#4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
#5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
#6 recall_trap+0x8
shared rwlock vmmaplk r = 0 (0xfffff5806d104318)
#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
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11079 12022K 12034K 166960K 12172 0
pcb 17 14K 16K 166960K 19 0
rtable 241 6K 7K 166960K 367 0
pf 31 16K 16K 166960K 31 0
ifaddr 42 7K 7K 166960K 44 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 4K 166960K 44 0
iov 1 1K 13K 166960K 14 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1288 81K 81K 166960K 1427 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 8 0
VM map 2 1K 1K 166960K 2 0
sem 11 1K 1K 166960K 14 0
dirhash 12 2K 2K 166960K 15 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 25 93K 129K 166960K 314 0
sigio 0 0K 0K 166960K 4 0
proc 61 115K 179K 166960K 509 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 35 0
in_multi 99 7K 7K 166960K 109 0
ether_multi 1 0K 0K 166960K 3 0
mrt 0 0K 0K 166960K 9 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 235 1049K 1049K 166960K 235 0
exec 0 0K 1K 166960K 384 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 287 185K 189K 166960K 4654 0
UVM aobj 10 2K 2K 166960K 11 0
pinsyscall 50 100K 111K 166960K 1457 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 13 0
NDP 11 0K 2K 166960K 27 0
temp 41 9119K 9127K 166960K 4230 0
kqueue 14 22K 30K 166960K 72 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 28 0 0 1 0 1 1 0 8 0
rtpcb 120 54 0 51 1 0 1 1 0 8 0
rtentry 176 114 0 2 6 0 6 6 0 8 0
unpcb 144 159 0 135 2 0 2 2 0 8 1
syncache 336 12 0 12 1 0 1 1 0 8 1
tcpqe 32 2 0 2 1 0 1 1 0 8 1
tcpcb 736 170 0 160 10 0 10 10 0 8 8
arp 136 18 0 0 1 0 1 1 0 8 0
ipq 40 1 0 0 1 0 1 1 0 8 0
ipqe 40 1 0 0 1 0 1 1 0 8 0
inpcb 328 368 0 354 15 0 15 15 0 8 13
ip6q 72 1 0 0 1 0 1 1 0 8 0
ip6af 40 1 0 0 1 0 1 1 0 8 0
nd6 152 27 0 1 2 0 2 2 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 256 472 0 2 30 0 30 30 0 8 0
art_table 40 473 0 2 5 0 5 5 0 8 0
art_node 32 114 0 12 1 0 1 1 0 8 0
sysvmsgpl 40 6 0 4 1 0 1 1 0 8 0
semupl 112 2 0 2 1 0 1 1 0 8 1
semapl 72 10 0 1 1 0 1 1 0 8 0
shmpl 112 8 0 1 1 0 1 1 0 8 0
dirhash 1024 19 0 2 3 0 3 3 0 8 0
dino2pl 256 1859 0 397 92 0 92 92 0 8 0
ffsino 296 1859 0 397 113 0 113 113 0 8 0
nchpl 144 2298 0 607 63 0 63 63 0 8 0
vnodes 216 1940 0 0 108 0 108 108 0 8 0
namei 1024 7312 0 7312 1 0 1 1 0 8 1
percpumem 16 51 0 0 1 0 1 1 0 8 0
kstatmem 264 25 0 0 2 0 2 2 0 8 0
scxspl 216 7541 0 7541 4 3 1 3 1 8 1
plimitpl 152 94 0 69 2 0 2 2 0 8 1
sigapl 424 621 0 565 7 0 7 7 0 8 0
knotepl 120 543 0 0 17 0 17 17 0 8 0
kqueuepl 224 73 0 62 1 0 1 1 0 8 0
pipepl 344 145 0 116 3 0 3 3 0 8 0
fdescpl 528 605 0 566 4 0 4 4 0 8 0
filepl 160 2871 0 2643 17 0 17 17 0 8 7
lockfpl 104 39 0 37 1 0 1 1 0 8 0
lockfspl 48 16 0 14 1 0 1 1 0 8 0
sessionpl 144 36 0 19 1 0 1 1 0 8 0
pgrppl 48 46 0 21 1 0 1 1 0 8 0
ucredpl 104 644 0 625 1 0 1 1 0 8 0
zombiepl 144 567 0 565 1 0 1 1 0 8 0
processpl 1232 621 0 565 5 0 5 5 0 8 0
procpl 664 904 0 835 7 0 7 7 0 8 1
sockpl 752 584 0 543 20 0 20 20 0 8 14
mcl64k 65536 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 118 0 0 15 0 15 15 0 8 0
mcl2k 2048 19 0 0 3 0 3 3 0 8 0
mextrefs 64 18 0 0 1 0 1 1 0 8 0
mtagpl 96 2 0 0 1 0 1 1 0 8 0
mbufpl 256 200 0 0 13 0 13 13 0 8 0
bufpl 272 2527 0 102 162 0 162 162 0 8 0
anonpl 32 7610 0 0 62 0 62 62 0 247 0
amapchunkpl 152 13892 0 13269 40 0 40 40 0 158 14
amappl16 200 1758 0 1733 13 3 10 11 0 8 8
amappl15 192 20 0 20 2 2 0 1 0 8 0
amappl14 184 414 0 413 1 0 1 1 0 8 0
amappl13 176 125 0 112 1 0 1 1 0 8 0
amappl12 168 849 0 811 2 0 2 2 0 8 0
amappl11 160 17 0 17 1 1 0 1 0 8 0
amappl10 152 80 0 70 1 0 1 1 0 8 0
amappl9 144 285 0 285 1 1 0 1 0 8 0
amappl8 136 95 0 94 1 0 1 1 0 8 0
amappl7 128 166 0 153 1 0 1 1 0 8 0
amappl6 120 163 0 162 1 0 1 1 0 8 0
amappl5 112 105 0 95 1 0 1 1 0 8 0
amappl4 104 294 0 279 1 0 1 1 0 8 0
amappl3 96 2597 0 2447 5 1 4 4 0 8 0
amappl2 88 586 0 520 2 0 2 2 0 8 0
amappl1 80 12624 0 11912 16 0 16 16 0 8 1
amappl 88 3890 0 3680 5 0 5 5 0 92 0
uvmvnodes 80 101 0 0 3 0 3 3 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 10 0 1 1 0 1 1 0 8 0
uaddrrnd 24 605 0 566 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 605 0 566 1 0 1 1 0 8 0
vmmpekpl 168 7232 0 7192 3 0 3 3 0 8 0
vmmpepl 168 49772 0 47454 106 0 106 106 0 357 2
vmsppl 488 604 0 566 7 1 6 6 0 8 0
rwobjpl 80 17609 0 16457 25 0 25 25 0 8 1
pdppl 4096 1217 0 1132 119 32 87 99 0 8 2
pvpl 32 15544 0 0 127 1 126 126 0 265 0
pmappl 256 604 0 566 4 1 3 3 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 459 0 35 13 0 13 13 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
amap_lookups(fffff5806ccbf0b8,7000,ffff80003c3d66a0,8) at amap_lookups+0x1e0 amap_chunk_get sys/uvm/uvm_amap.c:118 [inline]
amap_lookups(fffff5806ccbf0b8,7000,ffff80003c3d66a0,8) at amap_lookups+0x1e0 sys/uvm/uvm_amap.c:1168
uvm_fault_check(ffff80003c3d67a0,ffff80003c3d67d8,ffff80003c3d6810,0) at uvm_fault_check+0x8d2 sys/uvm/uvm_fault.c:840
uvm_fault(fffff5806d104218,a6944878000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627
upageflttrap(ffff80003c3d6940,a6944878d90) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192
usertrap(ffff80003c3d6940) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x71f7017429d0, count: -6
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
ddb{1}> trace
x86_ipi_db(ffff80002999dff0) 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
end of kernel
end trace frame: 0x73967b06a800, count: -3