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panic: _get_physpage: out of memory (3)



Hello,

syzbot found the following issue on:

HEAD commit:    adfd220df860 Fix "stray level 1 interrupt" panic by pressi..
git tree:       netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=150ba504980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=109dc37ff3faea49aa24
compiler:       Debian clang version 15.0.6

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6235639bc7b3/disk-adfd220d.raw.xz
netbsd.gdb: https://storage.googleapis.com/syzbot-assets/9031634b740d/netbsd-adfd220d.gdb.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+109dc37ff3faea49aa24%syzkaller.appspotmail.com@localhost

[  88.9128pmap010] panic: _get_physpage: out of memory
[  88.9128010] cpu1: Begin traceback...
[  88.9327920] vpanic() at netbsd:vpanic+0xc9d
[  88.9727914] panic() at netbsd:panic+0x1b3
[  89.0227853] pmap_get_physpage() at netbsd:pmap_get_physpage+0x5a6 sys/arch/x86/x86/pmap.c:5631
[  89.0627960] kmsan_md_shadow_map_page() at netbsd:kmsan_md_shadow_map_page+0x209 sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/msan.h:163
[  89.1128200] kmsan_shadow_map() at netbsd:kmsan_shadow_map+0xa8 sys/kern/subr_msan.c:504
[  89.1527890] pmap_growkernel() at netbsd:pmap_growkernel+0x59a sys/arch/x86/x86/pmap.c:5791
[  89.1928006] uvm_map_prepare() at netbsd:uvm_map_prepare+0x2033 sys/uvm/uvm_map.c:1213
[  89.2427932] uvm_map() at netbsd:uvm_map+0x5f6 sys/uvm/uvm_map.c:1081
[  89.2827861] kcov_allocbuf() at netbsd:kcov_allocbuf+0x2bf sys/kern/subr_kcov.c:202
[  89.3427847] kcov_fops_ioctl() at netbsd:kcov_fops_ioctl+0x1cf sys/kern/subr_kcov.c:497
[  89.3927840] sys_ioctl() at netbsd:sys_ioctl+0xd84 sys/kern/sys_generic.c:675
[  89.4427849] syscall() at netbsd:syscall+0x576 sy_invoke sys/sys/syscallvar.h:94 [inline]
[  89.4427849] syscall() at netbsd:syscall+0x576 sys/arch/x86/x86/syscall.c:137
[  89.4527817] --- syscall (number 54) ---
[  89.4727859] netbsd:syscall+0x576:
[  89.4727859] cpu1: End traceback...
[  89.4727859] fatal breakpoint trap in supervisor mode
[  89.4827797] trap type 1 code 0 rip 0xffffffff8023687d cs 0x8 rflags 0x282 cr2 0xc0000a8480 ilevel 0x6 rsp 0xffffdd80d2452490
[  89.4927774] curlwp 0xffffdd801395a740 pid 834.834 lowest kstack 0xffffdd80d244b2c0
Stopped in pid 834.834 (syz-executor.3) at      netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0xc9d
panic() at netbsd:panic+0x1b3
pmap_get_physpage() at netbsd:pmap_get_physpage+0x5a6 sys/arch/x86/x86/pmap.c:5631
kmsan_md_shadow_map_page() at netbsd:kmsan_md_shadow_map_page+0x209 sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/msan.h:163
kmsan_shadow_map() at netbsd:kmsan_shadow_map+0xa8 sys/kern/subr_msan.c:504
pmap_growkernel() at netbsd:pmap_growkernel+0x59a sys/arch/x86/x86/pmap.c:5791
uvm_map_prepare() at netbsd:uvm_map_prepare+0x2033 sys/uvm/uvm_map.c:1213
uvm_map() at netbsd:uvm_map+0x5f6 sys/uvm/uvm_map.c:1081
kcov_allocbuf() at netbsd:kcov_allocbuf+0x2bf sys/kern/subr_kcov.c:202
kcov_fops_ioctl() at netbsd:kcov_fops_ioctl+0x1cf sys/kern/subr_kcov.c:497
sys_ioctl() at netbsd:sys_ioctl+0xd84 sys/kern/sys_generic.c:675
syscall() at netbsd:syscall+0x576 sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x576 sys/arch/x86/x86/syscall.c:137
--- syscall (number 54) ---
netbsd:syscall+0x576:
Panic string: pmap_get_physpage: out of memory
PID     LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
834  >  834 7   1     40000   ffffdd801395a740     syz-executor.3
2493   2493 2   0  10040000   ffffdd80135905c0     syz-executor.4
2733 > 2733 7   0     40000   ffffdd8012cc1940     syz-executor.2
1839   1839 2   0       140   ffffdd8013793240     syz-executor.4
2983   2983 3   1       180   ffffdd801395ab80     syz-executor.5 parked
924     924 3   0       180   ffffdd8013cf9500     syz-executor.0 parked
760     760 3   1       180   ffffdd80134cc100     syz-executor.1 parked
1739   1739 3   0       180   ffffdd8013aa4900     syz-executor.1 parked
2638   2638 3   0       180   ffffdd8013aa4080     syz-executor.2 parked
2361   2361 3   0       180   ffffdd8013aa44c0     syz-executor.1 parked
2357   2357 3   0       180   ffffdd8013a98040     syz-executor.2 parked
2250   2250 3   0       180   ffffdd8013a988c0     syz-executor.1 parked
654     654 3   0       180   ffffdd8013a98480     syz-executor.0 parked
875     875 3   0       180   ffffdd8013960bc0     syz-executor.4 parked
615     615 3   1       180   ffffdd80137aa6c0     syz-executor.5 parked
481     481 3   0       180   ffffdd8013941700     syz-executor.5 parked
1466   1466 3   0       180   ffffdd80137aa280     syz-executor.5 parked
403     403 3   0       180   ffffdd8013793ac0     syz-executor.3 parked
384     384 3   0       180   ffffdd8013941b40     syz-executor.2 parked
2087   2087 3   1       180   ffffdd80136f5a80     syz-executor.2 parked
1588   1588 3   0       180   ffffdd801395a300     syz-executor.2 parked
1485   1485 3   0       180   ffffdd80137aab00     syz-executor.4 parked
1202   1202 3   1       180   ffffdd80136f5200     syz-executor.0 parked
325     325 3   1       180   ffffdd80136f5640     syz-executor.0 parked
1080   1382 3   0       180   ffffdd801365ea40         syz-fuzzer wait
1080   1207 3   1       180   ffffdd801365e600         syz-fuzzer parked
1080   1200 3   1       180   ffffdd801365e1c0         syz-fuzzer parked
1080   1203 3   0       180   ffffdd8013590a00         syz-fuzzer parked
1080   1247 3   1       180   ffffdd8013590180         syz-fuzzer parked
1080   1245 3   1       180   ffffdd80134ec580         syz-fuzzer wait
1080    449 3   0       180   ffffdd80134cc980         syz-fuzzer parked
1080   1244 3   1       180   ffffdd8012cc1500         syz-fuzzer kqueue
1080   1243 3   0       180   ffffdd8012cc10c0         syz-fuzzer parked
1080    942 3   1       180   ffffdd8012be6900         syz-fuzzer parked
1080    955 3   0       180   ffffdd8012be64c0         syz-fuzzer parked
1080   1233 3   0       180   ffffdd8012be6080         syz-fuzzer parked
1080   1231 3   1       180   ffffdd801251f300         syz-fuzzer parked
1080   1080 3   1       180   ffffdd801233a2c0         syz-fuzzer wait
1237   1237 3   0       180   ffffdd801230f6c0               sshd select
1082   1082 3   1       180   ffffdd801230fb00              getty nanoslp
1225   1225 3   0       180   ffffdd801230f280              getty nanoslp
1222   1222 3   1       180   ffffdd8012275ac0              getty nanoslp
1184   1184 3   0       180   ffffdd80121d7200              getty ttyraw
1095   1095 3   0       180   ffffdd8012b678c0               sshd select
1096   1096 3   1       180   ffffdd8012b67480             powerd kqueue
561     561 3   0       180   ffffdd801233ab40            syslogd kqueue
746     746 3   0       180   ffffdd8012b67040             dhcpcd poll
745     745 3   1       180   ffffdd801233a700             dhcpcd poll
736     736 3   1       180   ffffdd801254dbc0             dhcpcd poll
620     620 3   1       180   ffffdd801251fb80             dhcpcd poll
487     487 3   0       180   ffffdd801254d780             dhcpcd poll
292     292 3   0       180   ffffdd801254d340             dhcpcd poll
485     485 3   1       180   ffffdd801251f740             dhcpcd poll
1         1 3   0       180   ffffdd8011e53100               init wait
0      2228 5   0       200   ffffdd8013960780           (zombie)
0      1791 3   1       200   ffffdd8013960340             ktrace ktrwait
0      1578 3   1       200   ffffdd8013793680          acctwatch actwat
0       674 3   0       200   ffffdd80121d7640            physiod physiod
0       196 3   1       200   ffffdd8012275680          pooldrain pooldrain
0       195 3   1       200   ffffdd8012275240            ioflush syncer
0       194 3   0       200   ffffdd80121d7a80           pgdaemon mutex
0       172 3   1       200   ffffdd80121a7a40               usb7 usbevt
0       171 3   1       200   ffffdd80121a7600               usb6 usbevt
0       169 3   1       200   ffffdd80121a71c0               usb5 usbevt
0       168 3   1       200   ffffdd801211ba00               usb4 usbevt
0       166 3   1       200   ffffdd801211b5c0               usb3 usbevt
0       165 3   0       200   ffffdd801211b180               usb2 usbevt
0        31 3   0       200   ffffdd801206b9c0               usb1 usbevt
0        63 3   1       200   ffffdd801206b580               usb0 usbevt
0       126 3   1       200   ffffdd801206b140         usbtask-dr usbtsk
0       125 3   1       200   ffffdd8011e53980         usbtask-hc usbtsk
0       124 3   0       200   ffffdd80103d3b00          swwreboot swwreboot
0       123 3   0       200   ffffdd8011e53540             npfgc0 npfgcw
0       122 3   1       200   ffffdd8011e47940            rt_free rt_free
0       121 3   1       200   ffffdd8011e47500              unpgc unpgc
0       120 3   0       200   ffffdd8011e470c0    key_timehandler key_timehandler
0       119 3   1       200   ffffdd8011e41900    icmp6_wqinput/1 icmp6_wqinput
0       118 3   0       200   ffffdd8011e414c0    icmp6_wqinput/0 icmp6_wqinput
0       117 3   0       200   ffffdd8011e41080          nd6_timer nd6_timer
0       116 3   1       200   ffffdd8011ccd8c0    carp6_wqinput/1 carp6_wqinput
0       115 3   0       200   ffffdd8011ccd480    carp6_wqinput/0 carp6_wqinput
0       114 3   1       200   ffffdd8011ccd040     carp_wqinput/1 carp_wqinput
0       113 3   0       200   ffffdd8011cccbc0     carp_wqinput/0 carp_wqinput
0       112 3   1       200   ffffdd8011ccc340     icmp_wqinput/1 icmp_wqinput
0       111 3   0       200   ffffdd8011cc9b80     icmp_wqinput/0 icmp_wqinput
0       110 3   0       200   ffffdd8011cc9740           rt_timer rt_timer
0       109 3   1       200   ffffdd8011ccc780        vmem_rehash vmem_rehash
0       100 3   0       200   ffffdd8011cc9300          entbutler entropy
0        99 3   0       200   ffffdd80117c0b40              viomb balloon
0        98 3   1       200   ffffdd80117c0700      vioif0_txrx/1 vioif0_txrx
0        97 3   0       200   ffffdd80117c02c0      vioif0_txrx/0 vioif0_txrx
0        30 3   0       200   ffffdd80103d36c0           scsibus0 sccomp
0        29 3   0       200   ffffdd80103d3280               pms0 pmsreset
0        28 3   1       200   ffffdd80103baac0            xcall/1 xcall
0        27 1   1       200   ffffdd80103ba680          softser/1
0        26 1   1       200   ffffdd80103ba240          softclk/1
0        25 1   1       200   ffffdd80103b7a80          softbio/1
0        24 1   1       200   ffffdd80103b7640          softnet/1
0        23 1   1       201   ffffdd80103b7200             idle/1
0        22 3   1       200   ffffdd800f1d2a40           lnxsyswq lnxsyswq
0        21 3   1       200   ffffdd800f1d2600           lnxubdwq lnxubdwq
0        20 3   1       200   ffffdd800f1d21c0           lnxpwrwq lnxpwrwq
0        19 3   1       200   ffffdd800f1d1a00           lnxlngwq lnxlngwq
0        18 3   1       200   ffffdd800f1d15c0           lnxhipwq lnxhipwq
0        17 3   0       200   ffffdd800f1d1180           lnxrcugc lnxrcugc
0        16 3   0       200   ffffdd800f1ca9c0             sysmon smtaskq
0        15 3   1       200   ffffdd800f1ca580         pmfsuspend pmfsuspend
0        14 3   0       200   ffffdd800f1ca140           pmfevent pmfevent
0        13 3   0       200   ffffdd800f1c8980         sopendfree sopendfr
0        12 3   0       200   ffffdd800f1c8540             ifwdog ifwdog
0        11 3   0       200   ffffdd800f1c8100            iflnkst iflnkst
0        10 3   0       200   ffffdd800f1be940           nfssilly nfssilly
0         9 3   0       200   ffffdd800f1be500           pooldisp pooldisp
0         8 3   1       200   ffffdd800f1be0c0          modunload mod_unld
0         7 3   0       200   ffffdd800ebc9900            xcall/0 xcall
0         6 1   0       200   ffffdd800ebc94c0          softser/0
0         5 1   0       200   ffffdd800ebc9080          softclk/0
0         4 1   0       200   ffffdd800ebc88c0          softbio/0
0         3 1   0       200   ffffdd800ebc8480          softnet/0
0         2 1   0       201   ffffdd800ebc8040             idle/0
0         0 3   1       200   ffffffff86a6f8c0            swapper uvm
[Locks tracked through LWPs]

****** LWP 834.834 (syz-executor.3) @ 0xffffdd801395a740, l_stat=7

*** Locks held:

* Lock 0 (initialized at netbsd:kcov_open+0x10d sys/kern/subr_kcov.c:461)
lock address : ffffdd8013af0040
type         : sleep/adaptive
initialized  : netbsd:kcov_open+0x10d
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffdd801395a740 last held: 0xffffdd801395a740
last locked* : netbsd:kcov_fops_ioctl+0xa0
unlocked     : 0
owner field  : 0xffffdd801395a740 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

* Lock 1 (initialized at netbsd:uvm_map_setup+0x2a0 sys/uvm/uvm_map.c:4786)
lock address : netbsd:kernel_map_store+0x8
type         : sleep/adaptive
initialized  : netbsd:uvm_map_setup+0x2a0
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  1
relevant cpu :                  1 last held:                  1
relevant lwp : 0xffffdd801395a740 last held: 0xffffdd801395a740
last locked* : netbsd:vm_map_lock+0x20b
unlocked     : netbsd:uvm_fault_lower_enter+0x2071
owner/count  : 0xffffdd801395a740 flags    : 0x0000000000000004
Turnstile: no active turnstile for this lock.

* Lock 2 (initialized at netbsd:pmap_bootstrap+0x20c sys/arch/x86/x86/pmap.c:1237)
lock address : netbsd:kernel_pmap_store+0x180
type         : sleep/adaptive
initialized  : netbsd:pmap_bootstrap+0x20c
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  1
relevant cpu :                  1 last held:                  1
relevant lwp : 0xffffdd801395a740 last held: 0xffffdd801395a740
last locked* : netbsd:pmap_growkernel+0x98
unlocked     : netbsd:pmap_enter_ma+0x6f3f
owner field  : 0xffffdd801395a740 wait/spin:                1/0
Turnstile:
=> 0 waiting readers:
=> 1 waiting writers: 0xffffdd80121d7a80

*** Locks wanted: none

****** LWP 2493.2493 (syz-executor.4) @ 0xffffdd80135905c0, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:uvm_map_setup+0x2a0 sys/uvm/uvm_map.c:4786)
lock address : netbsd:kernel_map_store+0x8
type         : sleep/adaptive
initialized  : netbsd:uvm_map_setup+0x2a0
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  1
relevant cpu :                  0 last held:                  1
relevant lwp : 0xffffdd80135905c0 last held: 0xffffdd801395a740
last locked* : netbsd:vm_map_lock+0x20b
unlocked     : netbsd:uvm_fault_lower_enter+0x2071
owner/count  : 0xffffdd801395a740 flags    : 0x0000000000000004
Turnstile: no active turnstile for this lock.

****** LWP 745.745 (dhcpcd) @ 0xffffdd801233a700, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffdd801233a700 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 736.736 (dhcpcd) @ 0xffffdd801254dbc0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffdd801254dbc0 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 292.292 (dhcpcd) @ 0xffffdd801254d340, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffdd801254d340 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 485.485 (dhcpcd) @ 0xffffdd801251f740, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffdd801251f740 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.194 (pgdaemon) @ 0xffffdd80121d7a80, l_stat=3

*** Locks held:

* Lock 0 (initialized at netbsd:uvm_obj_init+0x88 sys/uvm/uvm_object.c:70)
lock address : ffffdd801231fbc0
type         : sleep/adaptive
initialized  : netbsd:uvm_obj_init+0x88
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffdd80121d7a80 last held: 0xffffdd80121d7a80
last locked* : netbsd:uvmpd_trylockowner+0x12c
unlocked     : netbsd:genfs_do_putpages+0x4fc0
owner/count  : 0xffffdd80121d7a80 flags    : 0x0000000000000004
Turnstile: no active turnstile for this lock.

*** Locks wanted:

* Lock 0 (initialized at netbsd:pmap_bootstrap+0x20c sys/arch/x86/x86/pmap.c:1237)
lock address : netbsd:kernel_pmap_store+0x180
type         : sleep/adaptive
initialized  : netbsd:pmap_bootstrap+0x20c
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  1
relevant cpu :                  0 last held:                  1
relevant lwp : 0xffffdd80121d7a80 last held: 0xffffdd801395a740
last locked* : netbsd:pmap_growkernel+0x98
unlocked     : netbsd:pmap_enter_ma+0x6f3f
owner field  : 0xffffdd801395a740 wait/spin:                1/0
Turnstile:
=> 0 waiting readers:
=> 1 waiting writers: 0xffffdd80121d7a80

****** LWP 0.11 (iflnkst) @ 0xffffdd800f1c8100, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffdd800f1c8100 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.5 (softclk/0) @ 0xffffdd800ebc9080, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffdd800ebc9080 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.0 (swapper) @ 0xffffffff86a6f8c0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x43 sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x43
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffffff86a6f8c0 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

[Locks tracked through CPUs]

******* Locks held on cpu1:

* Lock 0 (initialized at netbsd:kprintf_init+0xcb sys/kern/subr_prf.c:156)
lock address : netbsd:kprintf_mtx
type         : spin
initialized  : netbsd:kprintf_init+0xcb
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  1
relevant lwp : 0xffffdd801395a740 last held: 0xffffdd801395a740
last locked* : netbsd:vpanic+0x624
unlocked     : netbsd:printf+0x2ce
owner field  : 0x0000000000000800 wait/spin:                0/1

              PAGE FLAG   PQ            UOBJECT              UANON
0xffffdd8000017180 0001 00000000                0x0                0x0
0xffffdd8000017200 0041 00000000                0x0                0x0
0xffffdd8000017280 0041 00000000                0x0                0x0
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0xffffdd8000023c80 0001 00000000                0x0                0x0
0xffffdd8000023d00 0001 00000000                0x0                0x0
0xffffdd8000023d80 0001 00000000                0x0                0x0
0xffffdd8000023e00 0001 00000000                0x0                0x0
0xffffdd8000023e80 0001 00000000                0x0                0x0
0xffffdd8000023f00 0001 00000000                0x0                0x0
0xffffdd8000023f80 0001 00000000                0x0                0x0
0xffffdd8000024000 0001 00000000                0x0                0x0
0xffffdd8000024080 0001 00000000                0x0                0x0
0xffffdd8000024100 0001 00000000                0x0                0x0
0xffffdd8000024180 0001 00000000                0x0                0x0
0xffffdd8000024200 0001 00000000                0x0                0x0
0xffffdd8000024280 0001 00000000                0x0                0x0
0xffffdd8000024300 0001 00000000                0x0                0x0
0xffffdd8000024380 0001 00000000                0x0                0x0
0xffffdd8000024400 0001 00000000                0x0                0x0
0xffffdd8000024480 0001 00000000                0x0                0x0
0xffffdd8000024500 0001 00000000                0x0                0x0
0xffffdd8000024580 0001 00000000                0x0                0x0
0xffffdd8000024600 0001 00000000                0x0                0x0
0xffffdd8000024680 0001 00000000                0x0                0x0
0xffffdd8000024700 0001 00000000                0x0                0x0
0xffffdd8000024780 0001 00000000                0x0                0x0
0xffffdd8000024800 0001 00000000                0x0                0x0
0xffffdd8000024880 0001 00000000                0x0                0x0
0xffffdd8000024900 0001 00000000                0x0                0x0
0xffffdd8000024980 0001 00000000                0x0                0x0
0xffffdd8000024a00 0001 00000000                0x0                0x0
0xffffdd8000024a80 0001 00000000                0x0                0x0
0xffffdd8000024b00 0001 00000000                0x0                0x0
0xffffdd8000024b80 0001 00000000                0x0                0x0
0xffffdd8000024c00 0001 00000000                0x0                0x0
0xffffdd8000024c80 0001 00000000                0x0                0x0
0xffffdd8000024d00 0001 00000000                0x0                0x0
0xffffdd8000024d80 0001 00000000                0x0                0x0
0xffffdd8000024e00 0001 00000000                0x0                0x0
0xffffdd8000024e80 0001 00000000                0x0                0x0
0xffffdd8000024f00 0001 00000000                0x0                0x0
0xffffdd8000024f80 0001 00000000                0x0                0x0
0xffffdd8000025000 0001 00000000                0x0                0x0
0xffffdd8000025080 0001 00000000                0x0                0x0
0xffffdd8000025100 0001 00000000                0x0                0x0
0xffffdd8000025180 0001 00000000                0x0                0x0
0xffffdd8000025200 0001 00000000                0x0                0x0
0xffffdd8000025280 0001 00000000                0x0                0x0
0xffffdd8000025300 0001 00000000                0x0                0x0
0xffffdd8000025380 0001 00000000                0x0                0x0
0xffffdd8000025400 0001 00000000                0x0                0x0
0xffffdd8000025480 0001 00000000                0x0                0x0
0xffffdd8000025500 0001 00000000                0x0                0x0
0xffffdd8000025580 0001 00000000                0x0                0x0
0xffffdd8000025600 0001 00000000                0x0                0x0
0xffffdd8000025680 0001 00000000                0x0                0x0
0xffffdd8000025700 0001 00000000                0x0                0x0
0xffffdd8000025780 0001 00000000                0x0                0x0
0xffffdd8000025800 0001 00000000                0x0                0x0
0xffffdd8000025880 0001 00000000                0x0                0x0
0xffffdd8000025900 0001 00000000                0x0                0x0
0xffffdd8000025980 0001 00000000                0x0                0x0
0xffffdd8000025a00 0001 00000000                0x0                0x0
0xffffdd8000025a80 0001 00000000                0x0                0x0
0xffffdd8000025b00 0001 00000000                0x0                0x0
0xffffdd8000025b80 0001 00000000                0x0                0x0
0xffffdd8000025c00 0001 00000000                0x0                0x0
0xffffdd8000025c80 0001 00000000                0x0                0x0
0xffffdd8000025d00 0001 00000000                0x0                0x0
0xffffdd8000025d80 0001 00000000                0x0                0x0
0xffffdd8000025e00 0001 00000000                0x0                0x0
0xffffdd8000025e80 0001 00000000                0x0                0x0
0xffffdd8000025f00 0001 00000000                0x0                0x0
0xffffdd8000025f80 0001 00000000                0x0                0x0
0xffffdd8000026000 0001 00000000                0x0                0x0
0xffffdd8000026080 0001 00000000                0x0                0x0
0xffffdd8000026100 0001 00000000                0x0                0x0
0xffffdd8000026180 0001 00000000                0x0                0x0
0xffffdd8000026200 0001 00000000                0x0                0x0
0xffffdd8000026280 0001 00000000                0x0                0x0
0xffffdd8000026300 0001 00000000                0x0                0x0
0xffffdd8000026380 0001 00000000                0x0                0x0
0xffffdd8000026400 0001 00000000                0x0                0x0
0xffffdd8000026480 0001 00000000                0x0                0x0
0xffffdd8000026500 0001 00000000                0x0                0x0
0xffffdd8000026580 0001 00000000                0x0                0x0
0xffffdd8000026600 0001 00000000                0x0                0x0
0xffffdd8000026680 0001 00000000                0x0                0x0
0xffffdd8000026700 0001 00000000                0x0                0x0
0xffffdd8000026780 0001 00000000                0x0                0x0
0xffffdd8000026800 0001 00000000                0x0                0x0
0xffffdd8000026880 0001 00000000                0x0                0x0
0xffffdd8000026900 0001 00000000                0x0                0x0
0xffffdd8000026980 0001 00000000                0x0                0x0
0xffffdd8000026a00 0001 00000000                0x0                0x0
0xffffdd8000026a80 0001 00000000                0x0                0x0
0xffffdd8000026b00 0001 00000000                0x0                0x0
0xffffdd8000026b80 0001 00000000                0x0                0x0
0xffffdd8000026c00 0001 00000000                0x0                0x0
0xffffdd8000026c80 0001 00000000                0x0                0x0
0xffffdd8000026d00 0001 00000000                0x0                0x0
0xffffdd8000026d80 0001 00000000                0x0                0x0
0xffffdd8000026e00 0001 00000000                0x0                0x0
0xffffdd8000026e80 0001 00000000                0x0                0x0
0xffffdd8000026f00 0001 00000000                0x0                0x0
0xffffdd8000026f80 0001 00000000                0x0                0x0
0xffffdd8000027000 0001 00000000                0x0                0x0
0xffffdd8000027080 0001 00000000                0x0                0x0
0xffffdd8000027100 0001 00000000                0x0                0x0
0xffffdd8000027180 0001 00000000                0x0                0x0
0xffffdd8000027200 0001 00000000                0x0                0x0
0xffffdd8000027280 0001 00000000                0x0                0x0
0xffffdd8000027300 0001 00000000                0x0                0x0
0xffffdd8000027380 0001 00000000                0x0                0x0
0xffffdd8000027400 0001 00000000                0x0                0x0
0xffffdd8000027480 0001 00000000                0x0                0x0
0xffffdd8000027500 0001 00000000                0x0                0x0
0xffffdd8000027580 0001 00000000                0x0                0x0
0xffffdd8000027600 0001 00000000                0x0                0x0
0xffffdd8000027680 0001 00000000                0x0                0x0
0xffffdd8000027700 0001 00000000                0x0                0x0
0xffffdd8000027780 0001 00000000                0x0                0x0
0xffffdd8000027800 0001 00000000                0x0                0x0
0xffffdd8000027880 0001 00000000                0x0                0x0
0xffffdd8000027900 0001 00000000                0x0                0x0
0xffffdd8000027980 0001 00000000                0x0                0x0
0xffffdd8000027a00 0001 00000000                0x0                0x0
0xffffdd8000027a80 0001 00000000                0x0                0x0
0xffffdd8000027b00 0001 00000000                0x0                0x0
0xffffdd8000027b80 0001 00000000                0x0                0x0
0xffffdd8000027c00 0001 00000000                0x0                0x0
0xffffdd8000027c80 0001 00000000                0x0                0x0
0xffffdd8000027d00 0001 00000000                0x0                0x0
0xffffdd8000027d80 0001 00000000                0x0                0x0
0xffffdd8000027e00 0001 00000000                0x0                0x0
0xffffdd8000027e80 0001 00000000                0x0                0x0
0xffffdd8000027f00 0001 00000000                0x0                0x0
0xffffdd8000027f80 0001 00000000                0x0                0x0
0xffffdd8000028000 0001 00000000                0x0                0x0
0xffffdd8000028080 0001 00000000                0x0                0x0
0xffffdd8000028100 0001 00000000                0x0                0x0
0xffffdd8000028180 0001 00000000                0x0                0x0
0xffffdd8000028200 0001 00000000                0x0                0x0
0xffffdd8000028280 0001 00000000                0x0                0x0
0xffffdd8000028300 0001 00000000                0x0                0x0
0xffffdd8000028380 0001 00000000                0x0                0x0
0xffffdd8000028400 0001 00000000                0x0                0x0
0xffffdd8000028480 0001 00000000                0x0                0x0
0xffffdd8000028500 0001 00000000                0x0                0x0
0xffffdd8000028580 0001 00000000                0x0                0x0
0xffffdd8000028600 0001 00000000                0x0                0x0
0xffffdd8000028680 0001 00000000                0x0                0x0
0xffffdd8000028700 0001 00000000                0x0                0x0
0xffffdd8000028780 0001 00000000                0x0                0x0
0xffffdd8000028800 0001 00000000                0x0                0x0
0xffffdd8000028880 0001 00000000                0x0                0x0
0xffffdd8000028900 0001 00000000                0x0                0x0
0xffffdd8000028980 0001 00000000                0x0                0x0
0xffffdd8000028a00 0001 00000000                0x0                0x0
0xffffdd8000028a80 0001 00000000                0x0                0x0
0xffffdd8000028b00 0001 00000000                0x0                0x0
0xffffdd8000028b80 0001 00000000                0x0                0x0
0xffffdd8000028c00 0001 00000000                0x0                0x0
0xffffdd8000028c80 0001 00000000                0x0                0x0
0xffffdd8000028d00 0001 00000000                0x0                0x0
0xffffdd8000028d80 0001 00000000                0x0                0x0
0xffffdd8000028e00 0001 00000000                0x0                0x0
0xffffdd8000028e80 0001 00000000                0x0                0x0
0xffffdd8000028f00 0001 00000000                0x0                0x0
0xffffdd8000028f80 0001 00000000                0x0                0x0
0xffffdd8000029000 0001 00000000                0x0                0x0
0xffffdd8000029080 0001 00000000                0x0                0x0
0xffffdd8000029100 0001 00000000                0x0                0x0
0xffffdd8000029180 0001 00000000                0x0                0x0
0xffffdd8000029200 0001 00000000                0x0                0x0
0xffffdd8000029280 0001 00000000                0x0                0x0
0xffffdd8000029300 0001 00000000                0x0                0x0
0xffffdd8000029380 0001 00000000                0x0                0x0
0xffffdd8000029400 0001 00000000                0x0                0x0
0xffffdd8000029480 0001 00000000                0x0                0x0
0xffffdd8000029500 0001 00000000                0x0                0x0
0xffffdd8000029580 0001 00000000                0x0                0x0
0xffffdd8000029600 0001 00000000                0x0                0x0
0xffffdd8000029680 0001 00000000                0x0                0x0
0xffffdd8000029700 0001 00000000                0x0                0x0
0xffffdd8000029780 0001 00000000                0x0                0x0
0xffffdd8000029800 0001 00000000                0x0                0x0
0xffffdd8000029880 0001 00000000                0x0                0x0
0xffffdd8000029900 0001 00000000                0x0                0x0
0xffffdd8000029980 0001 00000000                0x0                0x0
0xffffdd8000029a00 0001 00000000                0x0                0x0
0xffffdd8000029a80 0001 00000000                0x0                0x0
0xffffdd8000029b00 0001 00000000                0x0                0x0
0xffffdd8000029b80 0001 00000000                0x0                0x0
0xffffdd8000029c00 0001 00000000                0x0                0x0
0xffffdd8000029c80 0001 00000000                0x0                0x0
0xffffdd8000029d00 0001 00000000                0x0                0x0
0xffffdd8000029d80 0001 00000000                0x0                0x0
0xffffdd8000029e00 0001 00000000                0x0                0x0
0xffffdd8000029e80 0001 00000000                0x0                0x0
0xffffdd8000029f00 0001 00000000                0x0                0x0
0xffffdd8000029f80 0001 00000000                0x0                0x0
0xffffdd800002a000 0001 00000000                0x0                0x0
0xffffdd800002a080 0001 00000000                0x0                0x0
0xffffdd800002a100 0001 00000000                0x0                0x0
0xffffdd800002a180 0001 00000000                0x0                0x0
0xffffdd800002a200 0001 00000000                0x0                0x0
0xffffdd800002a280 0001 00000000                0x0                0x0
0xffffdd800002a300 0001 00000000                0x0                0x0
0xffffdd800002a380 0001 00000000                0x0                0x0
0xffffdd800002a400 0001 00000000                0x0                0x0
0xffffdd800002a480 0001 00000000                0x0                0x0
0xffffdd800002a500 0001 00000000                0x0                0x0
0xffffdd800002a580 0001 00000000                0x0                0x0
0xffffdd800002a600 0001 00000000                0x0                0x0
0xffffdd800002a680 0001 00000000                0x0                0x0
0xffffdd800002a700 0001 00000000                0x0                0x0
0xffffdd800002a780 0001 00000000                0x0                0x0
0xffffdd80000

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller%googlegroups.com@localhost.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

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#syz undup

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