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panic: OCKDEBUG: Reader / writer lock error: rw_vector_enter,NUM: locking against myself



Hello,

syzbot found the following issue on:

HEAD commit:    f5ffeae836a2 hp300 installcd is now bootable so mention it..
git tree:       netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=13d26c44980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1420f906d33d9f1f
dashboard link: https://syzkaller.appspot.com/bug?extid=ecd89bbd725b47137a96
compiler:       g++ (Debian 12.2.0-14) 12.2.0

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/bc2d8b0f0e1b/disk-f5ffeae8.raw.xz
netbsd.gdb: https://storage.googleapis.com/syzbot-assets/0add0d1ec358/netbsd-f5ffeae8.gdb.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ecd89bbd725b47137a96%syzkaller.appspotmail.com@localhost

L[ 353.2595928] panic: OCKDEBUG: Reader / writer lock error: rw_vector_enter,300: locking against myself
[ 353.2695918] cpu1: Begin traceback...
[ 353.3095912] vpanic() at netbsd:vpanic+0x2f0 sys/kern/subr_prf.c:288
[ 353.4495899] panic() at netbsd:panic+0x49 sys/kern/subr_prf.c:1116
[ 353.5595919] lockdebug_abort1() at netbsd:lockdebug_abort1+0x191 lockdebug_abort1 sys/kern/subr_lockdebug.c:814 [inline]
[ 353.5595919] lockdebug_abort1() at netbsd:lockdebug_abort1+0x191 sys/kern/subr_lockdebug.c:796
[ 353.6595888] lockdebug_wantlock() at netbsd:lockdebug_wantlock+0x457 sys/kern/subr_lockdebug.c:489
[ 353.7595890] rw_enter() at netbsd:rw_enter+0x887 sys/kern/kern_rwlock.c:300
[ 353.8595916] genfs_lock() at netbsd:genfs_lock+0x220 sys/miscfs/genfs/genfs_vnops.c:397
[ 353.9495893] VOP_LOCK() at netbsd:VOP_LOCK+0x22a sys/kern/vnode_if.c:1632
[ 354.0495892] vn_lock() at netbsd:vn_lock+0x2ae sys/kern/vfs_vnops.c:1388
[ 354.1495916] union_lookup() at netbsd:union_lookup+0x2e8 sys/fs/union/union_vnops.c:403
[ 354.2395896] VOP_LOOKUP() at netbsd:VOP_LOOKUP+0x131 sys/kern/vnode_if.c:443
[ 354.3495899] lookup_once() at netbsd:lookup_once+0x5ad sys/kern/vfs_lookup.c:1150
[ 354.4495876] namei_tryemulroot() at netbsd:namei_tryemulroot+0x1fba namei_oneroot sys/kern/vfs_lookup.c:1546 [inline]
[ 354.4495876] namei_tryemulroot() at netbsd:namei_tryemulroot+0x1fba sys/kern/vfs_lookup.c:1906
[ 354.5595869] namei() at netbsd:namei+0x2e sys/kern/vfs_lookup.c:1942
[ 354.6595870] do_sys_unlinkat() at netbsd:do_sys_unlinkat+0x2d8 fd_nameiat sys/kern/vfs_syscalls.c:245 [inline]
[ 354.6595870] do_sys_unlinkat() at netbsd:do_sys_unlinkat+0x2d8 sys/kern/vfs_syscalls.c:2857
[ 354.7595865] sys___syscall() at netbsd:sys___syscall+0x1e4 sy_call sys/sys/syscallvar.h:65 [inline]
[ 354.7595865] sys___syscall() at netbsd:sys___syscall+0x1e4 sys/kern/sys_syscall.c:90
[ 354.8595863] syscall() at netbsd:syscall+0x28b sy_call sys/sys/syscallvar.h:65 [inline]
[ 354.8595863] syscall() at netbsd:syscall+0x28b sy_invoke sys/sys/syscallvar.h:94 [inline]
[ 354.8595863] syscall() at netbsd:syscall+0x28b sys/arch/x86/x86/syscall.c:137
[ 354.8795884] --- syscall (number 10 via SYS_syscall) ---
[ 354.9095873] netbsd:syscall+0x28b:
[ 354.9195896] cpu1: End traceback...
[ 354.9195896] fatal breakpoint trap in supervisor mode
[ 354.9195896] trap type 1 code 0 rip 0xffffffff80235475 cs 0x8 rflags 0x246 cr2 0x790637e4e000 ilevel 0 rsp 0xffffbe0249051720
[ 354.9295864] curlwp 0xffffea372a929a80 pid 5673.5789 lowest kstack 0xffffbe024904d2c0
Stopped in pid 5673.5789 (syz-executor.1) at    netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xec sys/ddb/db_panic.c:71
vpanic() at netbsd:vpanic+0x2f0 sys/kern/subr_prf.c:288
panic() at netbsd:panic+0x49 sys/kern/subr_prf.c:1116
lockdebug_abort1() at netbsd:lockdebug_abort1+0x191 lockdebug_abort1 sys/kern/subr_lockdebug.c:814 [inline]
lockdebug_abort1() at netbsd:lockdebug_abort1+0x191 sys/kern/subr_lockdebug.c:796
lockdebug_wantlock() at netbsd:lockdebug_wantlock+0x457 sys/kern/subr_lockdebug.c:489
rw_enter() at netbsd:rw_enter+0x887 sys/kern/kern_rwlock.c:300
genfs_lock() at netbsd:genfs_lock+0x220 sys/miscfs/genfs/genfs_vnops.c:397
VOP_LOCK() at netbsd:VOP_LOCK+0x22a sys/kern/vnode_if.c:1632
vn_lock() at netbsd:vn_lock+0x2ae sys/kern/vfs_vnops.c:1388
union_lookup() at netbsd:union_lookup+0x2e8 sys/fs/union/union_vnops.c:403
VOP_LOOKUP() at netbsd:VOP_LOOKUP+0x131 sys/kern/vnode_if.c:443
lookup_once() at netbsd:lookup_once+0x5ad sys/kern/vfs_lookup.c:1150
namei_tryemulroot() at netbsd:namei_tryemulroot+0x1fba namei_oneroot sys/kern/vfs_lookup.c:1546 [inline]
namei_tryemulroot() at netbsd:namei_tryemulroot+0x1fba sys/kern/vfs_lookup.c:1906
namei() at netbsd:namei+0x2e sys/kern/vfs_lookup.c:1942
do_sys_unlinkat() at netbsd:do_sys_unlinkat+0x2d8 fd_nameiat sys/kern/vfs_syscalls.c:245 [inline]
do_sys_unlinkat() at netbsd:do_sys_unlinkat+0x2d8 sys/kern/vfs_syscalls.c:2857
sys___syscall() at netbsd:sys___syscall+0x1e4 sy_call sys/sys/syscallvar.h:65 [inline]
sys___syscall() at netbsd:sys___syscall+0x1e4 sys/kern/sys_syscall.c:90
syscall() at netbsd:syscall+0x28b sy_call sys/sys/syscallvar.h:65 [inline]
syscall() at netbsd:syscall+0x28b sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x28b sys/arch/x86/x86/syscall.c:137
--- syscall (number 10 via SYS_syscall) ---
netbsd:syscall+0x28b:
Panic string: LOCKDEBUG: Reader / writer lock error: rw_vector_enter,300: locking against myself
PID     LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
5613   6984 3   1       180   ffffea373c738200     syz-executor.2 parked
5613   5613 2   1  10000000   ffffea372a929200     syz-executor.2
5313   5313 2   0         0   ffffea3736117b80     syz-executor.3
5874   5871 2   0         0   ffffea372e9d7900     syz-executor.4
5874   8118 2   0         0   ffffea3748cfc480     syz-executor.4
5874   7340 2   0         0   ffffea373c050600     syz-executor.4
5874   5874 2   0  10000000   ffffea3742f3a4c0     syz-executor.4
5673 > 5789 7   1         0   ffffea372a929a80     syz-executor.1
5673   5673 2   1  10000000   ffffea373c0501c0     syz-executor.1
6972   6972 2   1         0   ffffea37441ce780     syz-executor.0
7039   7039 2   1         0   ffffea3742f3a080     syz-executor.5
6853   6853 2   1       140   ffffea373a27ab00     syz-executor.2
5444   5444 2   0       140   ffffea37326e5680     syz-executor.3
6587   6587 2   0       140   ffffea3736c3a500     syz-executor.4
5964   5964 2   1       140   ffffea372cffb8c0     syz-executor.1
4485   4485 3   0       180   ffffea373c738640     syz-executor.5 parked
5328   4925 3   0  11100000   ffffea37286b4ac0     syz-executor.5 vfork
5328   5328 2   1  11000040   ffffea3742f3a900     syz-executor.5
4897   4897 3   1       1c0   ffffea37289b46c0              getty ttyraw
4299   4299 3   1       180   ffffea372ad206c0     syz-executor.1 parked
5039   5039 3   1       180   ffffea3731f479c0     syz-executor.3 parked
3222   5350 3   1  11100000   ffffea373862e180     syz-executor.3 vfork
3222   3222 2   1  11000040   ffffea372a007600     syz-executor.3
3924   3924 3   0       180   ffffea37326e5240     syz-executor.5 parked
2597   2597 3   1       180   ffffea37326e5ac0     syz-executor.3 parked
4429   3666 3   1   1100000   ffffea3729717980     syz-executor.3 vfork
4429   4429 2   1  11000040   ffffea373c050a40     syz-executor.3
2692   2692 3   0       180   ffffea373a27a6c0     syz-executor.1 parked
3564   3564 3   1       180   ffffea3736869340     syz-executor.3 parked
2210   2210 3   1       180   ffffea372a0071c0     syz-executor.2 parked
3662   1781 3   1   1100000   ffffea37302ba100     syz-executor.2 vfork
3662   3662 2   1  11000040   ffffea372cffb040     syz-executor.2
3168   3168 3   0       180   ffffea372e9d7080     syz-executor.2 parked
1666   1666 3   0       180   ffffea3736c3a0c0     syz-executor.2 parked
2098   2098 3   0       180   ffffea372e9d74c0     syz-executor.5 parked
1322   2655 3   0   1100000   ffffea3736869bc0     syz-executor.5 vfork
1322   1322 2   1  11000040   ffffea37297ff500     syz-executor.5
3040   3040 3   1       180   ffffea372a51eb40     syz-executor.4 parked
1166   2918 3   1   1100000   ffffea372a65fac0     syz-executor.4 vfork
1166   1166 2   1  11000040   ffffea372a007a40     syz-executor.4
1482   1482 3   0       180   ffffea3736117740     syz-executor.0 parked
1468   1468 3   0       180   ffffea3736117300     syz-executor.0 parked
1083   1617 3   1       180   ffffea372a65f680         syz-fuzzer parked
1083   1202 3   0       180   ffffea3728e96180         syz-fuzzer parked
1083   1205 2   1         0   ffffea3729d619c0         syz-fuzzer
1083   1384 3   1       180   ffffea3728e96a00         syz-fuzzer wait
1083   1245 3   1       180   ffffea37289b4b00         syz-fuzzer wait
1083   1244 3   1       180   ffffea3728bb7700         syz-fuzzer wait
1083   1239 3   1       180   ffffea3728bb7b40         syz-fuzzer wait
1083   1242 3   1       180   ffffea3728d77300         syz-fuzzer parked
1083    941 3   0       180   ffffea37286af200         syz-fuzzer parked
1083   1129 3   0       180   ffffea3728ec7040         syz-fuzzer wait
1083    982 3   1       180   ffffea37297ff0c0         syz-fuzzer parked
1083   1079 3   1       180   ffffea3728bb72c0         syz-fuzzer parked
1083   1243 2   0       140   ffffea3728e524c0         syz-fuzzer
1083   1083 3   1       180   ffffea3729d61140         syz-fuzzer wait
1236   1236 3   0       180   ffffea37289b4280               sshd select
1222   1222 3   0       180   ffffea3728e52900              getty nanoslp
1224   1224 3   0       180   ffffea3728c06780              getty nanoslp
1225   1225 3   0       180   ffffea3728ec7480              getty nanoslp
1103   1103 3   0       180   ffffea372a929640               sshd select
1095   1095 3   1       180   ffffea372a65f240             powerd kqueue
702     702 3   0       180   ffffea3728e965c0            syslogd kqueue
600     600 3   0       180   ffffea3728c06bc0             dhcpcd poll
558     558 3   0       180   ffffea3728e52080             dhcpcd poll
746     746 2   0         0   ffffea3729717100             dhcpcd
601     601 3   0       180   ffffea3728d77b80             dhcpcd poll
292     292 3   0       180   ffffea3728d77740             dhcpcd poll
485     485 3   0       180   ffffea3728c06340             dhcpcd poll
291     291 2   0         0   ffffea3728ec78c0             dhcpcd
1         1 3   0       180   ffffea372048c140               init wait
0      5836 5   0       200   ffffea3748cfc8c0           (zombie)
0      2776 3   1       200   ffffea373862e5c0             ktrace ktrwait
0      1278 3   0       200   ffffea3736869780            swapiod swapiod
0       734 3   0       200   ffffea37286af640            physiod physiod
0       196 3   1       200   ffffea37286b4680          pooldrain pooldrain
0       195 2   0       240   ffffea37286b4240            ioflush
0       194 3   0       200   ffffea37286afa80           pgdaemon pgdaemon
0       170 3   0       200   ffffea37265cea40               usb7 usbevt
0       169 3   0       200   ffffea37265ce600               usb6 usbevt
0       168 3   1       200   ffffea37265ce1c0               usb5 usbevt
0       167 3   0       200   ffffea3723549a00               usb4 usbevt
0       166 3   1       200   ffffea37235495c0               usb3 usbevt
0       165 3   0       200   ffffea3723549180               usb2 usbevt
0        31 3   0       200   ffffea372048c9c0               usb1 usbevt
0        63 3   1       200   ffffea37202ff740               usb0 usbevt
0       126 3   1       200   ffffea37202ffb80         usbtask-dr usbtsk
0       125 3   1       200   ffffea37203de340         usbtask-hc usbtsk
0       124 3   0       200   ffffea371e895b00          swwreboot swwreboot
0       123 3   0       200   ffffea372048c580             npfgc0 npfgcw
0       122 3   1       200   ffffea3720452980            rt_free rt_free
0       121 3   1       200   ffffea3720452540              unpgc unpgc
0       120 3   0       200   ffffea3720452100    key_timehandler key_timehandler
0       119 3   1       200   ffffea372044d940    icmp6_wqinput/1 icmp6_wqinput
0       118 3   0       200   ffffea372044d500    icmp6_wqinput/0 icmp6_wqinput
0       117 3   0       200   ffffea372044d0c0          nd6_timer nd6_timer
0       116 3   1       200   ffffea3720438900    carp6_wqinput/1 carp6_wqinput
0       115 3   0       200   ffffea37204384c0    carp6_wqinput/0 carp6_wqinput
0       114 3   1       200   ffffea3720438080     carp_wqinput/1 carp_wqinput
0       113 3   0       200   ffffea37204138c0     carp_wqinput/0 carp_wqinput
0       112 3   1       200   ffffea3720413480     icmp_wqinput/1 icmp_wqinput
0       111 3   0       200   ffffea3720413040     icmp_wqinput/0 icmp_wqinput
0       110 3   0       200   ffffea37203debc0           rt_timer rt_timer
0       109 3   0       200   ffffea37203de780        vmem_rehash vmem_rehash
0       100 3   0       200   ffffea37202ff300          entbutler entropy
0        99 3   0       200   ffffea371fd3eb40              viomb balloon
0        98 3   1       200   ffffea371fd3e700      vioif0_txrx/1 vioif0_txrx
0        97 3   0       200   ffffea371fd3e2c0      vioif0_txrx/0 vioif0_txrx
0        30 3   1       200   ffffea371e8956c0           scsibus0 sccomp
0        29 3   0       200   ffffea371e895280               pms0 pmsreset
0        28 3   1       200   ffffea371e7b5ac0            xcall/1 xcall
0        27 1   1       200   ffffea371e7b5680          softser/1
0        26 1   1       200   ffffea371e7b5240          softclk/1
0        25 1   1       200   ffffea371e798a80          softbio/1
0        24 1   1       200   ffffea371e798640          softnet/1
0        23 1   1       201   ffffea371e798200             idle/1
0        22 3   0       200   ffffea384cb33a40           lnxsyswq lnxsyswq
0        21 3   1       200   ffffea384cb33600           lnxubdwq lnxubdwq
0        20 3   0       200   ffffea384cb331c0           lnxpwrwq lnxpwrwq
0        19 3   0       200   ffffea384cb42a00           lnxlngwq lnxlngwq
0        18 3   0       200   ffffea384cb425c0           lnxhipwq lnxhipwq
0        17 3   0       200   ffffea384cb42180           lnxrcugc lnxrcugc
0        16 3   0       200   ffffea384cb599c0             sysmon smtaskq
0        15 3   0       200   ffffea384cb59580         pmfsuspend pmfsuspend
0        14 3   1       200   ffffea384cb59140           pmfevent pmfevent
0        13 3   0       200   ffffea384cb6c980         sopendfree sopendfr
0        12 3   0       200   ffffea384cb6c540             ifwdog ifwdog
0        11 3   1       200   ffffea384cb6c100            iflnkst iflnkst
0        10 3   0       200   ffffea384db97940           nfssilly nfssilly
0         9 3   0       200   ffffea384db97500           pooldisp pooldisp
0         8 3   1       200   ffffea384db970c0          modunload mod_unld
0         7 3   0       200   ffffea384dbc2900            xcall/0 xcall
0         6 1   0       200   ffffea384dbc24c0          softser/0
0         5 1   0       200   ffffea384dbc2080          softclk/0
0         4 1   0       200   ffffea384dbed8c0          softbio/0
0         3 1   0       200   ffffea384dbed480          softnet/0
0         2 1   0       201   ffffea384dbed040             idle/0
0    >    0 7   0       240   ffffffff86795ac0            swapper
[Locks tracked through LWPs]

****** LWP 5673.5789 (syz-executor.1) @ 0xffffea372a929a80, l_stat=7

*** Locks held:

* Lock 0 (initialized at netbsd:vcache_alloc+0xbf sys/kern/vfs_vnode.c:1438)
lock address : ffffea3746ff5740
type         : sleep/adaptive
initialized  : netbsd:vcache_alloc+0xbf
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  1
relevant cpu :                  1 last held:                  1
relevant lwp : 0xffffea372a929a80 last held: 0xffffea372a929a80
last locked* : netbsd:genfs_lock+0x220
unlocked     : netbsd:genfs_unlock+0x50
owner/count  : 0xffffea372a929a80 flags    : 0x0000000000000004
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 5444.5444 (syz-executor.3) @ 0xffffea37326e5680, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:fstrans_init+0x33 sys/kern/vfs_trans.c:137)
lock address : netbsd:fstrans_lock
type         : sleep/adaptive
initialized  : netbsd:fstrans_init+0x33
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  1
relevant cpu :                  0 last held:                  1
relevant lwp : 0xffffea37326e5680 last held: 000000000000000000
last locked  : netbsd:fstrans_lwp_dtor+0x5b
unlocked*    : netbsd:fstrans_lwp_dtor+0x20e
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 6587.6587 (syz-executor.4) @ 0xffffea3736c3a500, l_stat=2

*** Locks held:

* Lock 0 (initialized at netbsd:amap_alloc1+0x30a sys/uvm/uvm_amap.c:167)
lock address : ffffea3747a64880
type         : sleep/adaptive
initialized  : netbsd:amap_alloc1+0x30a
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea3736c3a500 last held: 0xffffea3736c3a500
last locked* : netbsd:uvm_fault_internal+0x75d
unlocked     : netbsd:uvm_fault_upper_enter+0x454
owner/count  : 000000000000000000 flags    : 000000000000000000
Turnstile: no active turnstile for this lock.

*** Locks wanted:

* Lock 0 (initialized at netbsd:pmap_ctor+0x6d sys/arch/x86/x86/pmap.c:2872)
lock address : ffffea372f507d80
type         : sleep/adaptive
initialized  : netbsd:pmap_ctor+0x6d
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  1
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea3736c3a500 last held: 000000000000000000
last locked  : netbsd:pmap_extract+0xdb
unlocked*    : netbsd:pmap_extract+0x2c8
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 558.558 (dhcpcd) @ 0xffffea3728e52080, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea3728e52080 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 746.746 (dhcpcd) @ 0xffffea3729717100, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea3729717100 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) @ 0xffffea3728c06340, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea3728c06340 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 291.291 (dhcpcd) @ 0xffffea3728ec78c0, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea3728ec78c0 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.26 (softclk/1) @ 0xffffea371e7b5240, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffea371e7b5240 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.11 (iflnkst) @ 0xffffea384cb6c100, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  0
relevant lwp : 0xffffea384cb6c100 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) @ 0xffffea384dbc2080, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffea384dbc2080 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) @ 0xffffffff86795ac0, l_stat=7

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type         : sleep/adaptive
initialized  : netbsd:module_hook_init+0x1c
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xffffffff86795ac0 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]

              PAGE FLAG   PQ            UOBJECT              UANON
0xffffbe0000007180 0045 00000000                0x0                0x0
0xffffbe0000007200 0045 00000000                0x0                0x0
0xffffbe0000007280 0045 00000000                0x0                0x0
0xffffbe0000007300 0045 00000000                0x0                0x0
0xffffbe0000007380 0045 00000000                0x0                0x0
0xffffbe0000007400 0045 00000000                0x0                0x0
0xffffbe0000007480 0045 00000000                0x0                0x0
0xffffbe0000007500 0045 00000000                0x0                0x0
0xffffbe0000007580 0045 00000000                0x0                0x0
0xffffbe0000007600 0045 00000000                0x0                0x0
0xffffbe0000007680 0041 00000000                0x0                0x0
0xffffbe0000007700 0041 00000000                0x0                0x0
0xffffbe0000007780 0041 00000000                0x0                0x0
0xffffbe0000007800 0041 00000000                0x0                0x0
0xffffbe0000007880 0041 00000000                0x0                0x0
0xffffbe0000007900 0045 00000000                0x0                0x0
0xffffbe0000007980 0041 00000000                0x0                0x0
0xffffbe0000007a00 0041 00000000                0x0                0x0
0xffffbe0000007a80 0041 00000000                0x0                0x0
0xffffbe0000007b00 0041 00000000                0x0                0x0
0xffffbe0000007b80 0041 00000000                0x0                0x0
0xffffbe0000007c00 0041 00000000                0x0                0x0
0xffffbe0000007c80 0041 00000000                0x0                0x0
0xffffbe0000007d00 0041 00000000                0x0                0x0
0xffffbe0000007d80 0041 00000000                0x0                0x0
0xffffbe0000007e00 0041 00000000                0x0                0x0
0xffffbe0000007e80 0041 00000000                0x0                0x0
0xffffbe0000007f00 0041 00000000                0x0                0x0
0xffffbe0000007f80 0041 00000000                0x0                0x0
0xffffbe0000008000 0041 00000000                0x0                0x0
0xffffbe0000008080 0041 00000000                0x0                0x0
0xffffbe0000008100 0041 00000000                0x0                0x0
0xffffbe0000008180 0041 00000000                0x0                0x0
0xffffbe0000008200 0041 00000000                0x0                0x0
0xffffbe0000008280 0041 00000000                0x0                0x0
0xffffbe0000008300 0041 00000000                0x0                0x0
0xffffbe0000008380 0041 00000000                0x0                0x0
0xffffbe0000008400 0041 00000000                0x0                0x0
0xffffbe0000008480 0041 00000000                0x0                0x0
0xffffbe0000008500 0041 00000000                0x0                0x0
0xffffbe0000008580 0041 00000000                0x0                0x0
0xffffbe0000008600 0045 00000000                0x0                0x0
0xffffbe0000008680 0041 00000000                0x0                0x0
0xffffbe0000008700 0041 00000000                0x0                0x0
0xffffbe0000008780 0041 00000000                0x0                0x0
0xffffbe0000008800 0041 00000000                0x0                0x0
0xffffbe0000008880 0041 00000000                0x0                0x0
0xffffbe0000008900 0041 00000000                0x0                0x0
0xffffbe0000008980 0041 00000000                0x0                0x0
0xffffbe0000008a00 0041 00000000                0x0                0x0
0xffffbe0000008a80 0041 00000000                0x0                0x0
0xffffbe0000008b00 0041 00000000                0x0                0x0
0xffffbe0000008b80 0041 00000000                0x0                0x0
0xffffbe0000008c00 0041 00000000                0x0                0x0
0xffffbe0000008c80 0041 00000000                0x0                0x0
0xffffbe0000008d00 0041 00000000                0x0                0x0
0xffffbe0000008d80 0041 00000000                0x0                0x0
0xffffbe0000008e00 0041 00000000                0x0                0x0
0xffffbe0000008e80 0041 00000000                0x0                0x0
0xffffbe0000008f00 0041 00000000                0x0                0x0
0xffffbe0000008f80 0041 00000000                0x0                0x0
0xffffbe0000009000 0041 00000000                0x0                0x0
0xffffbe0000009080 0041 00000000                0x0                0x0
0xffffbe0000009100 0045 00000000                0x0                0x0
0xffffbe0000009180 0045 00000000                0x0                0x0
0xffffbe0000009200 0041 00000000                0x0                0x0
0xffffbe0000009280 0041 00000000                0x0                0x0
0xffffbe0000009300 0041 00000000                0x0                0x0
0xffffbe0000009380 0041 00000000                0x0                0x0
0xffffbe0000009400 0041 00000000                0x0                0x0
0xffffbe0000009480 0041 00000000                0x0                0x0
0xffffbe0000009500 0041 00000000                0x0                0x0
0xffffbe0000009580 0041 00000000                0x0                0x0
0xffffbe0000009600 0041 00000000                0x0                0x0
0xffffbe0000009680 0041 00000000                0x0                0x0
0xffffbe0000009700 0041 00000000                0x0                0x0
0xffffbe0000009780 0041 00000000                0x0                0x0
0xffffbe0000009800 0041 00000000                0x0                0x0
0xffffbe0000009880 0041 00000000                0x0                0x0
0xffffbe0000009900 0041 00000000                0x0                0x0
0xffffbe0000009980 0041 00000000                0x0                0x0
0xffffbe0000009a00 0041 00000000                0x0                0x0
0xffffbe0000009a80 0041 00000000                0x0                0x0
0xffffbe0000009b00 0041 00000000                0x0                0x0
0xffffbe0000009b80 0041 00000000                0x0                0x0
0xffffbe0000009c00 0041 00000000                0x0                0x0
0xffffbe0000009c80 0041 00000000                0x0                0x0
0xffffbe0000009d00 0041 00000000                0x0                0x0
0xffffbe0000009d80 0041 00000000                0x0                0x0
0xffffbe0000009e00 0041 00000000                0x0                0x0
0xffffbe0000009e80 0041 00000000                0x0                0x0
0xffffbe0000009f00 0041 00000000                0x0                0x0
0xffffbe0000009f80 0045 00000000                0x0                0x0
0xffffbe000000a000 0041 00000000                0x0                0x0
0xffffbe000000a080 0041 00000000                0x0                0x0
0xffffbe000000a100 0041 00000000                0x0                0x0
0xffffbe000000a180 0041 00000000                0x0                0x0
0xffffbe000000a200 0041 00000000                0x0                0x0
0xffffbe000000a280 0041 00000000                0x0                0x0
0xffffbe000000a300 0041 00000000                0x0                0x0
0xffffbe000000a380 0041 00000000                0x0                0x0
0xffffbe000000a400 0041 00000000                0x0                0x0
0xffffbe000000a480 0041 00000000                0x0                0x0
0xffffbe000000a500 0041 00000000                0x0                0x0
0xffffbe000000a580 0041 00000000                0x0                0x0
0xffffbe000000a600 0041 00000000                0x0                0x0
0xffffbe000000a680 0041 00000000                0x0                0x0
0xffffbe000000a700 0041 00000000                0x0                0x0
0xffffbe000000a780 0041 00000000                0x0                0x0
0xffffbe000000a800 0041 00000000                0x0                0x0
0xffffbe000000a880 0041 00000000                0x0                0x0
0xffffbe000000a900 0041 00000000                0x0                0x0
0xffffbe000000a980 0041 00000000                0x0                0x0
0xffffbe000000aa00 0041 00000000                0x0                0x0
0xffffbe000000aa80 0041 00000000                0x0                0x0
0xffffbe000000ab00 0041 00000000                0x0                0x0
0xffffbe000000ab80 0041 00000000                0x0                0x0
0xffffbe000000ac00 0041 00000000                0x0                0x0
0xffffbe000000ac80 0041 00000000                0x0                0x0
0xffffbe000000ad00 0041 00000000                0x0                0x0
0xffffbe000000ad80 0041 00000000                0x0                0x0
0xffffbe000000ae00 0041 00000000                0x0                0x0
0xffffbe000000ae80 0041 00000000                0x0                0x0
0xffffbe000000af00 0041 00000000                0x0                0x0
0xffffbe000000af80 0041 00000000                0x0                0x0
0xffffbe000000b000 0045 00000000                0x0                0x0
0xffffbe000000b080 0041 00000000                0x0                0x0
0xffffbe000000b100 0041 00000000                0x0                0x0
0xffffbe000000b180 0041 00000000                0x0                0x0
0xffffbe000000b200 0045 00000000                0x0                0x0
0xffffbe000000b280 0045 00000000                0x0                0x0
0xffffbe000000b300 0045 00000000                0x0                0x0
0xffffbe000000b380 0045 00000000                0x0                0x0
0xffffbe000000b400 0045 00000000                0x0                0x0
0xffffbe000000b480 0045 00000000                0x0                0x0
0xffffbe000000b500 0041 00000000                0x0                0x0
0xffffbe000000b580 0041 00000000                0x0                0x0
0xffffbe000000b600 0045 00000000                0x0                0x0
0xffffbe000000b680 0045 00000000                0x0                0x0
0xffffbe000000b700 0045 00000000                0x0                0x0
0xffffbe000000b780 0045 00000000                0x0                0x0
0xffffbe000000b800 0045 00000000                0x0                0x0
0xffffbe000000b880 0045 00000000                0x0                0x0
0xffffbe000000b900 0045 00000000                0x0                0x0
0xffffbe000000b980 0045 00000000                0x0                0x0
0xffffbe000000ba00 0045 00000000                0x0                0x0
0xffffbe000000ba80 0045 00000000                0x0                0x0
0xffffbe000000bb00 0045 00000000                0x0                0x0
0xffffbe000000bb80 0045 00000000                0x0                0x0
0xffffbe000000bc00 0045 00000000                0x0                0x0
0xffffbe000000bc80 0045 00000000                0x0                0x0
0xffffbe000000bd00 0045 00000000                0x0                0x0


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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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

If you want to undo deduplication, reply with:
#syz undup

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