Hi,
An OpenBSD 7.4 machine on KVM running postgress and pagedaemon
crashed in amap_wipeout().
bluhm
kernel: protection fault trap, code=0
Stopped at amap_wipeout+0x76: movq %rcx,0x28(%rax)
ddb{3}> show panic
the kernel did not panic
ddb{3}> trace
amap_wipeout(fffffd8015b154d0) at amap_wipeout+0x76
uvm_fault_check(ffff8000232d6a20,ffff8000232d6a58,ffff8000232d6a80) at uvm_faul
t_check+0x2ad
uvm_fault(fffffd811d150748,7d42519fb000,0,1) at uvm_fault+0xfb
upageflttrap(ffff8000232d6b80,7d42519fb3c0) at upageflttrap+0x65
usertrap(ffff8000232d6b80) at usertrap+0x1ee
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7d42519fb3f0, count: -6
ddb{3}> show register
rdi 0xffffffff82473f30 amap_list_lock
rsi 0xffffffff824f4b50 uvm_amap_chunk_pool
rbp 0xffff8000232d6880
rbx 0xe
rdx 0xfe00000000000000
rcx 0x63002f00740069
rax 0x72007200650067
r8 0
r9 0x1
r10 0xffff8000232d6558
r11 0xa409b3b14c737625
r12 0xffff8000232d6a80
r13 0xffff8000232d6a80
r14 0xfffffd8015b154d0
r15 0xffff8000232d6a58
rip 0xffffffff8132b746 amap_wipeout+0x76
cs 0x8
rflags 0x10202 __ALIGN_SIZE+0xf202
rsp 0xffff8000232d6830
ss 0
amap_wipeout+0x76: movq %rcx,0x28(%rax)
ddb{3}> x/s version
version: OpenBSD 7.4 (GENERIC.MP) #1397: Tue Oct 10 09:02:37 MDT 2023\01
2 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP\012
ddb{3}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*38518 517051 50847 503 7 0 postgres
82624 208679 99182 1001 3 0x200082 kqread node
82624 119588 99182 1001 3 0x4200082 kqread node
82624 122193 99182 1001 3 0x4200082 fsleep node
82624 66095 99182 1001 3 0x4200082 fsleep node
82624 317454 99182 1001 3 0x4200082 fsleep node
82624 284088 99182 1001 3 0x4200082 fsleep node
82624 234719 99182 1001 3 0x4200082 fsleep node
31531 190400 99182 1001 3 0x200082 kqread node
31531 185654 99182 1001 3 0x4200082 kqread node
31531 229761 99182 1001 3 0x4200082 fsleep node
31531 117978 99182 1001 3 0x4200082 fsleep node
31531 334870 99182 1001 3 0x4200082 fsleep node
31531 312488 99182 1001 3 0x4200082 fsleep node
31531 167646 99182 1001 3 0x4200082 fsleep node
89435 492203 99182 1001 3 0x200082 kqread node
89435 460828 99182 1001 3 0x4200082 kqread node
89435 83554 99182 1001 3 0x4200082 fsleep node
89435 293193 99182 1001 3 0x4200082 fsleep node
89435 704 99182 1001 3 0x4200082 fsleep node
89435 359138 99182 1001 3 0x4200082 fsleep node
89435 19846 99182 1001 3 0x4200082 fsleep node
8671 276508 99182 1001 3 0x200082 fsleep node
8671 322042 99182 1001 3 0x4200082 kqread node
8671 351444 99182 1001 3 0x4200002 flt_noram5 node
8671 260721 99182 1001 3 0x4200082 fsleep node
8671 75501 99182 1001 3 0x4200002 flt_noram5 node
8671 141315 99182 1001 3 0x4200082 fsleep node
8671 287176 99182 1001 3 0x4200082 fsleep node
95187 370471 99182 1001 3 0x200082 kqread node
95187 210159 99182 1001 3 0x4200082 kqread node
95187 229193 99182 1001 3 0x4200082 fsleep node
95187 300771 99182 1001 3 0x4200082 fsleep node
95187 421388 99182 1001 3 0x4200082 fsleep node
95187 397767 99182 1001 3 0x4200082 fsleep node
95187 40543 99182 1001 3 0x4200082 fsleep node
2278 484811 99182 1001 3 0x200082 kqread node
2278 400491 99182 1001 3 0x4200082 kqread node
2278 371099 99182 1001 3 0x4200082 fsleep node
2278 362176 99182 1001 3 0x4200082 fsleep node
2278 136151 99182 1001 3 0x4200082 fsleep node
2278 319181 99182 1001 3 0x4200082 fsleep node
2278 382201 99182 1001 3 0x4200082 fsleep node
38833 71526 99182 1001 3 0x200002 flt_noram5 node
38833 499573 99182 1001 3 0x4200082 kqread node
38833 391427 99182 1001 3 0x4200002 flt_noram5 node
38833 274546 99182 1001 3 0x4200002 flt_noram5 node
38833 33206 99182 1001 3 0x4200002 flt_noram5 node
38833 428149 99182 1001 3 0x4200002 flt_noram5 node
38833 432234 99182 1001 3 0x4200082 fsleep node
18567 365070 39590 1001 3 0x200082 kqread node
18567 301380 39590 1001 3 0x4200082 kqread node
18567 159612 39590 1001 3 0x4200082 fsleep node
18567 201704 39590 1001 3 0x4200082 fsleep node
18567 357575 39590 1001 3 0x4200082 fsleep node
18567 66491 39590 1001 3 0x4200082 fsleep node
18567 16498 39590 1001 3 0x4200082 fsleep node
94902 405803 39590 1001 3 0x200082 kqread node
94902 420088 39590 1001 3 0x4200082 kqread node
94902 484205 39590 1001 3 0x4200082 fsleep node
94902 314327 39590 1001 3 0x4200082 fsleep node
94902 39034 39590 1001 3 0x4200082 fsleep node
94902 363351 39590 1001 3 0x4200082 fsleep node
94902 348016 39590 1001 3 0x4200082 fsleep node
91641 327208 39590 1001 3 0x200082 kqread node
91641 249829 39590 1001 3 0x4200082 kqread node
91641 448440 39590 1001 3 0x4200082 fsleep node
91641 503449 39590 1001 3 0x4200082 fsleep node
91641 497270 39590 1001 3 0x4200082 fsleep node
91641 255653 39590 1001 3 0x4200082 fsleep node
91641 39518 39590 1001 3 0x4200082 fsleep node
90240 221503 39590 1001 3 0x200082 kqread node
90240 404903 39590 1001 3 0x4200082 kqread node
90240 469431 39590 1001 3 0x4200082 fsleep node
90240 284598 39590 1001 3 0x4200082 fsleep node
90240 141004 39590 1001 3 0x4200082 fsleep node
90240 88458 39590 1001 3 0x4200082 fsleep node
90240 290324 39590 1001 3 0x4200082 fsleep node
99165 320067 39590 1001 3 0x200082 kqread node
99165 218772 39590 1001 3 0x4200082 kqread node
99165 162849 39590 1001 3 0x4200082 fsleep node
99165 293858 39590 1001 3 0x4200082 fsleep node
99165 329810 39590 1001 3 0x4200082 fsleep node
99165 443208 39590 1001 3 0x4200082 fsleep node
99165 44735 39590 1001 3 0x4200082 fsleep node
50369 390087 39590 1001 3 0x200082 kqread node
50369 317404 39590 1001 3 0x4200082 kqread node
50369 459169 39590 1001 3 0x4200082 fsleep node
50369 59727 39590 1001 3 0x4200082 fsleep node
50369 118453 39590 1001 3 0x4200082 fsleep node
50369 90743 39590 1001 3 0x4200082 fsleep node
50369 373741 39590 1001 3 0x4200082 fsleep node
76043 12398 39590 1001 3 0x200002 flt_noram5 node
76043 441655 39590 1001 3 0x4200082 kqread node
76043 339118 39590 1001 3 0x4200082 fsleep node
76043 435305 39590 1001 3 0x4200082 fsleep node
76043 332998 39590 1001 3 0x4200082 fsleep node
76043 118231 39590 1001 3 0x4200082 fsleep node
76043 249265 39590 1001 3 0x4200082 fsleep node
99182 172836 88576 1001 3 0x200082 kqread node
99182 462806 88576 1001 3 0x4200082 kqread node
99182 288628 88576 1001 3 0x4200082 fsleep node
99182 23952 88576 1001 3 0x4200082 fsleep node
99182 1158 88576 1001 3 0x4200082 fsleep node
99182 164301 88576 1001 3 0x4200082 fsleep node
99182 189284 88576 1001 3 0x4200082 fsleep node
99182 16823 88576 1001 3 0x4200082 fsleep node
99182 173326 88576 1001 3 0x4200082 fsleep node
99182 503575 88576 1001 3 0x4200082 fsleep node
99182 108862 88576 1001 3 0x4200082 fsleep node
39834 521191 50847 503 3 0x80 kqread postgres
39590 50528 32099 1001 3 0x200082 kqread node
39590 249523 32099 1001 3 0x4200082 kqread node
39590 295419 32099 1001 3 0x4200082 fsleep node
39590 317993 32099 1001 3 0x4200082 fsleep node
39590 413731 32099 1001 3 0x4200082 fsleep node
39590 475167 32099 1001 3 0x4200082 fsleep node
39590 385435 32099 1001 3 0x4200082 fsleep node
39590 272697 32099 1001 3 0x4200082 fsleep node
39590 301527 32099 1001 3 0x4200082 fsleep node
39590 507315 32099 1001 3 0x4200082 fsleep node
39590 432072 32099 1001 3 0x4200082 fsleep node
32099 173699 89510 1001 3 0x200082 kqread ruby32
32099 191307 89510 1001 3 0x4200082 kqread ruby32
32099 51503 89510 1001 3 0x4200082 fsleep ruby32
32099 504217 89510 1001 3 0x4200082 kqread ruby32
32099 271436 89510 1001 3 0x4200082 kqread ruby32
32099 105370 89510 1001 3 0x4200082 kqread ruby32
88576 299952 2004 1001 3 0x200082 kqread ruby32
88576 453440 2004 1001 3 0x4200082 kqread ruby32
88576 36953 2004 1001 3 0x4200082 fsleep ruby32
88576 18711 2004 1001 3 0x4200082 kqread ruby32
88576 30417 2004 1001 3 0x4200082 kqread ruby32
88576 388863 2004 1001 3 0x4200082 kqread ruby32
2004 115135 55167 1001 3 0x10008a sigsusp sh
89510 206024 55167 1001 3 0x10008a sigsusp sh
55167 54150 48269 1001 3 0x200082 kqread ruby32
55167 351037 48269 1001 3 0x4200082 kqread ruby32
55167 285523 48269 1001 3 0x4200082 kqread ruby32
48269 200679 95109 1001 3 0x10008a sigsusp sh
30134 456475 95109 1001 3 0x100000 uvm_pmr_getp sh
95109 221827 1 1001 3 0x100088 sigsusp sh
19096 57760 32989 1157 3 0x82 kqread uxd
32989 397496 86793 1157 3 0x10008a sigsusp sh
86793 346376 25180 1157 3 0x10008a sigsusp ksh
25180 346386 71574 1157 3 0x98 kqread sshd
71574 470458 5808 0 3 0x92 kqread sshd
14575 292582 12337 2136 3 0x8b kqread bash
12337 178457 73494 2136 3 0x98 kqread sshd
73494 74839 5808 0 3 0x92 kqread sshd
2085 144111 1 0 3 0x80 kqread ypbind
2721 386089 82629 93 3 0x100090 kqread ypldap
82629 125925 66868 93 3 0x1100090 kqread ypldap
66868 39650 1 93 3 0x100090 kqread ypldap
83554 362152 1 28 3 0x1100090 kqread portmap
95349 427026 50008 1001 3 0x2200082 fsleep java
95349 411090 50008 1001 3 0x6200082 fsleep java
95349 203656 50008 1001 3 0x6200082 fsleep java
95349 79214 50008 1001 3 0x6200082 fsleep java
95349 340882 50008 1001 3 0x6200082 fsleep java
95349 113336 50008 1001 3 0x6200082 fsleep java
95349 205164 50008 1001 3 0x6200082 fsleep java
95349 195292 50008 1001 3 0x6200082 fsleep java
95349 103886 50008 1001 3 0x6200082 fsleep java
95349 522805 50008 1001 3 0x6200082 fsleep java
95349 474497 50008 1001 3 0x6200082 fsleep java
95349 465589 50008 1001 3 0x6200082 fsleep java
95349 241494 50008 1001 3 0x6200082 fsleep java
95349 121823 50008 1001 3 0x6200082 fsleep java
95349 378087 50008 1001 3 0x6200082 piperd java
95349 24982 50008 1001 3 0x6200082 fsleep java
95349 274939 50008 1001 3 0x6200082 fsleep java
95349 431401 50008 1001 3 0x6200082 fsleep java
95349 360200 50008 1001 3 0x6200082 fsleep java
95349 390518 50008 1001 3 0x6200082 fsleep java
95349 381422 50008 1001 3 0x6200082 fsleep java
95349 223883 50008 1001 3 0x6200082 fsleep java
95349 405840 50008 1001 3 0x6200082 fsleep java
95349 451552 50008 1001 3 0x6200082 fsleep java
95349 523990 50008 1001 3 0x6200082 fsleep java
95349 37130 50008 1001 3 0x6200082 fsleep java
95349 136606 50008 1001 3 0x6200082 fsleep java
95349 407615 50008 1001 3 0x6200082 fsleep java
95349 487580 50008 1001 3 0x6200082 fsleep java
95349 306739 50008 1001 3 0x6200082 fsleep java
95349 392206 50008 1001 3 0x6200082 fsleep java
95349 408420 50008 1001 3 0x6200082 fsleep java
95349 294047 50008 1001 3 0x6200082 fsleep java
50008 358804 12717 1001 3 0x10008a sigsusp ksh
12717 353084 54100 1001 3 0x98 kqread sshd
54100 505283 5808 0 3 0x92 kqread sshd
75913 219454 1 0 3 0x100083 ttyin getty
99691 392809 1 0 3 0x100098 kqread cron
75437 233828 63698 67 3 0x90 kqread nginx
26314 94641 63698 67 3 0x90 kqread nginx
44685 189432 63698 67 3 0x90 kqread nginx
52653 49290 63698 67 3 0x90 kqread nginx
77236 388928 63698 67 3 0x90 kqread nginx
63698 206812 1 0 3 0x88 sigsusp nginx
62629 421311 1 686 3 0x80 kqread redis-server
62629 226935 1 686 3 0x4000080 fsleep redis-server
62629 347942 1 686 3 0x4000080 fsleep redis-server
62629 270282 1 686 3 0x4000080 fsleep redis-server
73062 320500 50847 503 3 0x80 kqread postgres
11961 77178 50847 503 3 0x80 kqread postgres
4985 352432 50847 503 3 0x80 kqread postgres
27138 169794 50847 503 3 0x80 kqread postgres
22514 458755 50847 503 3 0x80 kqread postgres
50847 134015 1 503 3 0x2 flt_noram3 postgres
58550 391897 1 99 3 0x1100090 kqread sndiod
15875 422948 1 110 3 0x100090 kqread sndiod
19086 208078 94293 95 3 0x1100092 kqread smtpd
72279 131998 94293 103 3 0x1100092 kqread smtpd
33509 220440 94293 95 3 0x1100092 kqread smtpd
40142 88550 94293 95 3 0x100092 kqread smtpd
60075 104470 94293 95 3 0x1100092 kqread smtpd
71095 75697 94293 95 3 0x1100092 kqread smtpd
94293 253995 1 0 3 0x100080 kqread smtpd
5808 395570 1 0 3 0x88 kqread sshd
68385 378110 0 0 3 0x14280 nfsidl nfsio
71612 19336 0 0 3 0x14280 nfsidl nfsio
19552 493593 0 0 3 0x14280 nfsidl nfsio
87325 403421 0 0 3 0x14280 nfsidl nfsio
59369 327869 19318 83 3 0x100092 kqread ntpd
19318 461489 95068 83 3 0x1100092 kqread ntpd
95068 464124 1 0 3 0x100080 kqread ntpd
79796 242229 25251 73 3 0x1100090 kqread syslogd
25251 241151 1 0 3 0x100082 netio syslogd
51941 386170 1 0 3 0x100080 kqread resolvd
42098 400174 88403 77 3 0x100092 kqread dhcpleased
3721 334306 88403 77 3 0x100092 kqread dhcpleased
88403 207930 1 0 3 0x80 kqread dhcpleased
38621 453662 14594 115 3 0x100092 kqread slaacd
14002 32717 14594 115 3 0x100092 kqread slaacd
14594 339463 1 0 3 0x100080 kqread slaacd
27608 157655 0 0 3 0x14200 bored smr
78112 437933 0 0 3 0x14200 pgzero zerothread
76538 141465 0 0 3 0x14200 aiodoned aiodoned
86632 68948 0 0 3 0x14200 syncer update
44300 508368 0 0 3 0x14200 cleaner cleaner
86582 72592 0 0 3 0x14200 reaper reaper
61233 523759 0 0 7 0x14200 pagedaemon
6292 523732 0 0 3 0x14200 bored viomb
3950 504372 0 0 3 0x14200 usbtsk usbtask
64836 498558 0 0 3 0x14200 usbatsk usbatsk
22346 417978 0 0 3 0x40014200 acpi0 acpi0
64791 445813 0 0 7 0x40014200 idle7
86515 245446 0 0 7 0x40014200 idle6
47339 284669 0 0 7 0x40014200 idle5
64931 8303 0 0 7 0x40014200 idle4
56952 3580 0 0 3 0x40014200 idle3
35956 208981 0 0 3 0x40014200 idle2
15811 189256 0 0 7 0x40014200 idle1
2914 231642 0 0 3 0x14200 bored softnet3
17388 313600 0 0 3 0x14200 bored softnet2
76838 351761 0 0 3 0x14200 bored softnet1
20106 88460 0 0 3 0x14200 bored softnet0
43836 393078 0 0 3 0x14200 bored systqmp
27643 95025 0 0 3 0x14200 bored systq
97329 195882 0 0 3 0x40014200 bored softclock
37237 507025 0 0 7 0x40014200 idle0
1 197824 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{3}> show uvm
Current UVM status:
pagesize=4096 (0x1000), pagemask=0xfff, pageshift=12
1010052 VM pages: 623172 active, 279271 inactive, 1 wired, 6 free (74692 zero
)
min 10% (25) anon, 10% (25) vnode, 5% (12) vtext
freemin=33668, free-target=44890, inactive-target=284886, wired-max=336684
faults=520344779, traps=540669039, intrs=94328620, ctxswitch=339247611 fpuswi
tch=0
softint=80051186, syscalls=904421005, kmapent=16
fault counts:
noram=901681, noanon=19, noamap=0, pgwait=235551, pgrele=0
ok relocks(total)=49723771(49981898), anget(retries)=225096726(46089976), a
mapcopy=57063589
neighbor anon/obj pg=172747826/168002778, gets(lock/unlock)=54550851/371667
1
cases: anon=210437542, anoncow=14417608, obj=45769930, prcopy=8696819, prze
ro=241027408
daemon and swap counts:
woke=2328, revs=2270, scans=243930514, obscans=1341687, anscans=242577343
busy=0, freed=53926033, reactivate=0, deactivate=173589726
pageouts=30558387, pending=30553456, nswget=46068798
nswapdev=1
swpages=2098481, swpginuse=524367, swpgonly=441879 paging=0
kernel pointers:
objs(kern)=0xffffffff824c32e0
ddb{3}> dmesg
OpenBSD 7.4 (GENERIC.MP) #1397: Tue Oct 10 09:02:37 MDT 2023
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4278054912 (4079MB)
avail mem = 4128690176 (3937MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xbffffc80 (17 entries)
bios0: vendor SeaBIOS version "1.14.0-2" date 04/01/2014
bios0: QEMU Standard PC (i440FX + PIIX, 1996)
acpi0 at bios0: ACPI 1.0
acpi0: sleep states S5
acpi0: tables DSDT FACP APIC WAET
acpi0: wakeup devices
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD EPYC 7452 32-Core Processor, 2350.44 MHz, 17-31-00
cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu0: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu0: 512KB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 1000MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD EPYC 7452 32-Core Processor, 2350.43 MHz, 17-31-00
cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu1: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu1: 512KB 64b/line 16-way L2 cache
cpu1: smt 0, core 0, package 1
cpu2 at mainbus0: apid 2 (application processor)
cpu2: AMD EPYC 7452 32-Core Processor, 2350.40 MHz, 17-31-00
cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu2: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu2: 512KB 64b/line 16-way L2 cache
cpu2: smt 0, core 0, package 2
cpu3 at mainbus0: apid 3 (application processor)
cpu3: AMD EPYC 7452 32-Core Processor, 2350.63 MHz, 17-31-00
cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu3: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu3: 512KB 64b/line 16-way L2 cache
cpu3: smt 0, core 0, package 3
cpu4 at mainbus0: apid 4 (application processor)
cpu4: AMD EPYC 7452 32-Core Processor, 2350.49 MHz, 17-31-00
cpu4: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu4: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu4: 512KB 64b/line 16-way L2 cache
cpu4: smt 0, core 0, package 4
cpu5 at mainbus0: apid 5 (application processor)
cpu5: AMD EPYC 7452 32-Core Processor, 2350.55 MHz, 17-31-00
cpu5: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu5: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu5: 512KB 64b/line 16-way L2 cache
cpu5: smt 0, core 0, package 5
cpu6 at mainbus0: apid 6 (application processor)
cpu6: AMD EPYC 7452 32-Core Processor, 2350.64 MHz, 17-31-00
cpu6: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu6: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu6: 512KB 64b/line 16-way L2 cache
cpu6: smt 0, core 0, package 6
cpu7 at mainbus0: apid 7 (application processor)
cpu7: AMD EPYC 7452 32-Core Processor, 2350.57 MHz, 17-31-00
cpu7: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,C
FLUSH,MMX,FXSR,SSE,SSE2,SSE3,PCLMUL,SSSE3,FMA3,CX16,SSE4.1,SSE4.2,x2APIC,MOVBE,
POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,HV,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG
,LAHF,CMPLEG,SVM,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,CPCTR,FSGSBASE,TSC_ADJUST,BM
I1,AVX2,SMEP,BMI2,RDSEED,ADX,SMAP,CLFLUSHOPT,CLWB,SHA,UMIP,IBRS,IBPB,STIBP,SSBD
,IBPB,STIBP,SSBD,VIRTSSBD,XSAVEOPT,XSAVEC,XGETBV1,XSAVES
cpu7: 64KB 64b/line 2-way D-cache, 64KB 64b/line 2-way I-cache
cpu7: 512KB 64b/line 16-way L2 cache
cpu7: smt 0, core 0, package 7
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 11, 24 pins
acpiprt0 at acpi0: bus 0 (PCI0)
"ACPI0006" at acpi0 not configured
acpipci0 at acpi0 PCI0
com0 at acpi0 COM1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com0: console
acpicmos0 at acpi0
"PNP0A06" at acpi0 not configured
"PNP0A06" at acpi0 not configured
"PNP0A06" at acpi0 not configured
"QEMU0002" at acpi0 not configured
"ACPI0010" at acpi0 not configured
acpicpu0 at acpi0: C1(@1 halt!)
acpicpu1 at acpi0: C1(@1 halt!)
acpicpu2 at acpi0: C1(@1 halt!)
acpicpu3 at acpi0: C1(@1 halt!)
acpicpu4 at acpi0: C1(@1 halt!)
acpicpu5 at acpi0: C1(@1 halt!)
acpicpu6 at acpi0: C1(@1 halt!)
acpicpu7 at acpi0: C1(@1 halt!)
pvbus0 at mainbus0: KVM
pvclock0 at pvbus0
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02
pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00
pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0 w
ired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <QEMU HARDDISK>
wd0: 16-sector PIO, LBA48, 122880MB, 251658240 sectors
atapiscsi0 at pciide0 channel 0 drive 1
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.5+> removable
wd0(pciide0:0:0): using PIO mode 4, DMA mode 2
cd0(pciide0:0:1): using PIO mode 4, DMA mode 2
pciide0: channel 1 disabled (no drives)
piixpm0 at pci0 dev 1 function 3 "Intel 82371AB Power" rev 0x03: apic 0 int 9
iic0 at piixpm0
vga1 at pci0 dev 2 function 0 "Red Hat QXL Video" rev 0x05
wsdisplay at vga1 not configured
em0 at pci0 dev 3 function 0 "Intel 82540EM" rev 0x03: apic 0 int 11, address 5
2:54:00:5d:d6:3f
em1 at pci0 dev 4 function 0 "Intel 82540EM" rev 0x03: apic 0 int 11, address 5
2:54:00:34:89:59
azalia0 at pci0 dev 5 function 0 "Intel 82801FB HD Audio" rev 0x01: apic 0 int 1
0
azalia0: No codecs found
uhci0 at pci0 dev 6 function 0 "Intel 82801I USB" rev 0x03: apic 0 int 10
uhci1 at pci0 dev 6 function 1 "Intel 82801I USB" rev 0x03: apic 0 int 11
uhci2 at pci0 dev 6 function 2 "Intel 82801I USB" rev 0x03: apic 0 int 11
ehci0 at pci0 dev 6 function 7 "Intel 82801I USB" rev 0x03: apic 0 int 10
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 a
ddr 1
virtio0 at pci0 dev 7 function 0 "Qumranet Virtio Console" rev 0x00
virtio0: no matching child driver; not configured
virtio1 at pci0 dev 8 function 0 "Qumranet Virtio Memory Balloon" rev 0x00
viomb0 at virtio1
virtio1: apic 0 int 11
isa0 at pcib0
isadma0 at isa0
fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0 mux 1
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
usb1 at uhci0: USB revision 1.0
uhub1 at usb1 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 a
ddr 1
usb2 at uhci1: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 a
ddr 1
usb3 at uhci2: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 a
ddr 1
vmm0 at mainbus0: SVM/RVI
uhidev0 at uhub0 port 1 configuration 1 interface 0 "QEMU QEMU USB Tablet" rev 2
.00/0.00 addr 2
uhidev0: iclass 3/0
ums0 at uhidev0: 3 buttons, Z dir
wsmouse1 at ums0 mux 0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on wd0a (6fad0da38091f1aa.a) swap on wd0b dump on wd0b
fd0 at fdc0 drive 1: density unknown
kernel: protection fault trap, code=0
Stopped at amap_wipeout+0x76: movq %rcx,0x28(%rax)
0000000000000870 <amap_wipeout>:
...
/usr/src/sys/uvm/uvm_amap.c:498
8bd: 48 c7 45 b8 00 00 00 movq $0x0,0xffffffffffffffb8(%rbp)
8c4: 00
8c5: 48 8d 45 b8 lea 0xffffffffffffffb8(%rbp),%rax
8c9: 48 89 45 c0 mov %rax,0xffffffffffffffc0(%rbp)
/usr/src/sys/uvm/uvm_amap.c:103
8cd: 48 c7 c7 00 00 00 00 mov $0x0,%rdi
8d4: e8 00 00 00 00 callq 8d9 <amap_wipeout+0x69>
/usr/src/sys/uvm/uvm_amap.c:104
8d9: 49 8b 46 20 mov 0x20(%r14),%rax
8dd: 48 85 c0 test %rax,%rax
8e0: 74 0e je 8f0 <amap_wipeout+0x80>
8e2: 49 8b 4e 28 mov 0x28(%r14),%rcx
* 8e6: 48 89 48 28 mov %rcx,0x28(%rax)
8ea: 49 8b 46 20 mov 0x20(%r14),%rax
8ee: eb 02 jmp 8f2 <amap_wipeout+0x82>
8f0: 31 c0 xor %eax,%eax
8f2: 49 8b 4e 28 mov 0x28(%r14),%rcx
8f6: 48 89 01 mov %rax,(%rcx)
8f9: 49 c7 46 28 ff ff ff movq $0xffffffffffffffff,0x28(%r14)
900: ff
901: 49 c7 46 20 ff ff ff movq $0xffffffffffffffff,0x20(%r14)
908: ff
/usr/src/sys/uvm/uvm_amap.c:105
100 static inline void
101 amap_list_remove(struct vm_amap *amap)
102 {
103 amap_lock_list();
* 104 LIST_REMOVE(amap, am_list);
105 amap_unlock_list();
106 }
480 amap_wipeout(struct vm_amap *amap)
481 {
482 int slot;
483 struct vm_anon *anon;
484 struct vm_amap_chunk *chunk;
485 struct pglist pgl;
486
487 KASSERT(rw_write_held(amap->am_lock));
488 KASSERT(amap->am_ref == 0);
489
490 if (__predict_false((amap->am_flags & AMAP_SWAPOFF) != 0)) {
491 /*
492 * Note: amap_swap_off() will call us again.
493 */
494 amap_unlock(amap);
495 return;
496 }
497
498 TAILQ_INIT(&pgl);
* 499 amap_list_remove(amap);
500
501 AMAP_CHUNK_FOREACH(chunk, amap) {
ddb{3}> show struct vm_amap 0xfffffd8015b154d0
struct vm_amap at 0xfffffd8015b154d0 (88 bytes) {am_lock = (struct rwlock *)0xf
ffffd813ce2a9a8, am_ref = 0x0, am_flags = 0x0, am_nslot = 0x800, am_nused = 0x0
, am_ppref = {le_next = (struct process *)0x0, le_prev = 0x72007200650067}, am_
list = {le_next = (struct vm_amap *)0x72007200650067, le_prev = 0x63002f0074006
9}, am_impl = {ami_normal = {amn_buckets = 0xffff800000f2bc00, amn_chunks = {tq
h_first = (struct vm_amap_chunk *)0x0, tqh_last = 0xfffffd8015b15508}, amn_nbuc
kets = 0x10, amn_ncused = 0x0, amn_hashshift = 0x3}, ami_small = {ac_list = {tq
e_next = (struct vm_amap_chunk *)0xffff800000f2bc00, tqe_prev = 0x0}, ac_basesl
ot = 0x15b15508, ac_usedmap = 0xfffffd80, ac_nslot = 0x10ffff, ac_anon = 16}}}
le_next is bogous pointer 0x72007200650067 in %rax
ddb{0}> trace
x86_ipi_db(ffffffff8249eff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x281
sched_idle(ffffffff8249eff0) at sched_idle+0x282
end trace frame: 0x0, count: -5
ddb{1}> trace
x86_ipi_db(ffff800022508ff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x281
sched_idle(ffff800022508ff0) at sched_idle+0x282
end trace frame: 0x0, count: -5
ddb{2}> trace
x86_ipi_db(ffff800022511ff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
rijndaelEncrypt(ffffffff825c0d94,a,ffff800008058870,ffff800008058870) at rijnda
elEncrypt+0x185
swap_encrypt(ffff80000083fbb8,ffff800008048000,ffff800008058000,6259b0,1000) at
swap_encrypt+0xe9
uvm_swap_io(ffff800022710270,c4b31,10,4) at uvm_swap_io+0x384
uvm_pager_put(0,fffffd8003c2c380,ffff8000227102f0,ffff800022710318,90,c4b31,fe9
89cc32a05afea) at uvm_pager_put+0x10e
uvmpd_scan_inactive(0,ffffffff825e3170) at uvmpd_scan_inactive+0x1e3
uvmpd_scan(0) at uvmpd_scan+0x6a
uvm_pageout(ffff8000226da7f0) at uvm_pageout+0x368
end trace frame: 0x0, count: -10
ddb{2}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
*61233 523759 0 0 7 0x14200 pagedaemon
ddb{4}> trace
x86_ipi_db(ffff800022523ff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x281
sched_idle(ffff800022523ff0) at sched_idle+0x282
end trace frame: 0x0, count: -5
ddb{5}> trace
x86_ipi_db(ffff80002252cff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x281
sched_idle(ffff80002252cff0) at sched_idle+0x282
end trace frame: 0x0, count: -5
ddb{6}> trace
x86_ipi_db(ffff800022535ff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x281
sched_idle(ffff800022535ff0) at sched_idle+0x282
end trace frame: 0x0, count: -5
ddb{7}> trace
x86_ipi_db(ffff80002253eff0) at x86_ipi_db+0x16
x86_ipi_handler() at x86_ipi_handler+0x80
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
acpicpu_idle() at acpicpu_idle+0x281
sched_idle(ffff80002253eff0) at sched_idle+0x282
end trace frame: 0x0, count: -5
