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Re: assert failed: sc->sc_dk.dk_openmask == NUM



Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
assert failed: sc->sc_dk.dk_openmask == NUM

[  60.7153583] panic: kernel diagnostic assertion "sc->sc_dk.dk_openmask == 0" failed: file "/syzkaller/jobs-2/netbsd/kernel/sys/dev/dkwedge/dk.c", line 737 
[  60.7153583] cpu1: Begin traceback...
[  60.7353454] vpanic() at netbsd:vpanic+0xc9d
[  60.7853494] kern_assert() at netbsd:kern_assert+0x228
[  60.8353476] dkwedge_detach() at netbsd:dkwedge_detach+0xf44
[  60.8853553] config_detach() at netbsd:config_detach+0xe4e sys/kern/subr_autoconf.c:2063
[  60.9353535] dkwedge_del1() at netbsd:dkwedge_del1+0x44c sys/dev/dkwedge/dk.c:673
[  60.9853538] dkwedge_delall1() at netbsd:dkwedge_delall1+0x2f2
[  61.0253548] disk_ioctl() at netbsd:disk_ioctl+0x9af
[  61.0753536] dk_ioctl() at netbsd:dk_ioctl+0x6d5 sys/dev/dksubr.c:642
[  61.1253585] sdioctl() at netbsd:sdioctl+0x4b5 sys/dev/scsipi/sd.c:1005
[  61.1753547] cdev_ioctl() at netbsd:cdev_ioctl+0x3dd sys/kern/subr_devsw.c:1525
[  61.2153529] spec_ioctl() at netbsd:spec_ioctl+0x2c6
[  61.2653536] VOP_IOCTL() at netbsd:VOP_IOCTL+0x2f0
[  61.3153559] vn_ioctl() at netbsd:vn_ioctl+0x344 sys/kern/vfs_vnops.c:892
[  61.3653592] sys_ioctl() at netbsd:sys_ioctl+0xd84 sys/kern/sys_generic.c:675
[  61.4053543] sys___syscall() at netbsd:sys___syscall+0x2ae sy_call sys/sys/syscallvar.h:65 [inline]
[  61.4053543] sys___syscall() at netbsd:sys___syscall+0x2ae sys/kern/sys_syscall.c:90
[  61.4553607] syscall() at netbsd:syscall+0x60c sy_invoke sys/sys/syscallvar.h:94 [inline]
[  61.4553607] syscall() at netbsd:syscall+0x60c sys/arch/x86/x86/syscall.c:138
[  61.4753554] --- syscall (number 54 via SYS_syscall) ---
[  61.4853605] netbsd:syscall+0x60c:
[  61.4953530] cpu1: End traceback...
[  61.4953530] fatal breakpoint trap in supervisor mode
[  61.4953530] trap type 1 code 0 rip 0xffffffff8023686d cs 0x8 rflags 0x282 cr2 0x7f7ff7eef000 ilevel 0 rsp 0xfffffe80c7ba1f70
[  61.5153458] curlwp 0xfffffe801360a240 pid 1361.1514 lowest kstack 0xfffffe80c7b9b2c0
Stopped in pid 1361.1514 (syz-executor.1) at    netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
vpanic() at netbsd:vpanic+0xc9d
kern_assert() at netbsd:kern_assert+0x228
dkwedge_detach() at netbsd:dkwedge_detach+0xf44
config_detach() at netbsd:config_detach+0xe4e sys/kern/subr_autoconf.c:2063
dkwedge_del1() at netbsd:dkwedge_del1+0x44c sys/dev/dkwedge/dk.c:673
dkwedge_delall1() at netbsd:dkwedge_delall1+0x2f2
disk_ioctl() at netbsd:disk_ioctl+0x9af
dk_ioctl() at netbsd:dk_ioctl+0x6d5 sys/dev/dksubr.c:642
sdioctl() at netbsd:sdioctl+0x4b5 sys/dev/scsipi/sd.c:1005
cdev_ioctl() at netbsd:cdev_ioctl+0x3dd sys/kern/subr_devsw.c:1525
spec_ioctl() at netbsd:spec_ioctl+0x2c6
VOP_IOCTL() at netbsd:VOP_IOCTL+0x2f0
vn_ioctl() at netbsd:vn_ioctl+0x344 sys/kern/vfs_vnops.c:892
sys_ioctl() at netbsd:sys_ioctl+0xd84 sys/kern/sys_generic.c:675
sys___syscall() at netbsd:sys___syscall+0x2ae sy_call sys/sys/syscallvar.h:65 [inline]
sys___syscall() at netbsd:sys___syscall+0x2ae sys/kern/sys_syscall.c:90
syscall() at netbsd:syscall+0x60c sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x60c sys/arch/x86/x86/syscall.c:138
--- syscall (number 54 via SYS_syscall) ---
netbsd:syscall+0x60c:
Panic string: kernel diagnostic assertion "sc->sc_dk.dk_openmask == 0" failed: file "/syzkaller/jobs-2/netbsd/kernel/sys/dev/dkwedge/dk.c", line 737
PID    LID S CPU     FLAGS       STRUCT LWP *               NAME WAIT
1256  1256 3   0         0   fffffe80135f2a80     syz-executor.4 tstile
957    957 2   1         0   fffffe80135f2640     syz-executor.2
1361 >1514 7   1       100   fffffe801360a240     syz-executor.1
1361 >1361 7   0  10000000   fffffe8013505600     syz-executor.1
1201  1201 2   1         0   fffffe80135051c0       syz-execprog
1244  1244 3   0         0   fffffe80134e85c0     syz-executor.3 tstile
336    336 2   1       140   fffffe80134de9c0     syz-executor.4
1353  1363 3   1       180   fffffe80135f2200     syz-executor.0 parked
1353  1354 2   1       100   fffffe80134e8a00     syz-executor.0
1353  1353 2   1  10000000   fffffe80134de140     syz-executor.0
1241  1241 2   0       140   fffffe8012c48940     syz-executor.2
1383  1383 2   1       140   fffffe8012c48500     syz-executor.1
331    331 2   1       140   fffffe8012c480c0     syz-executor.0
1211  1357 3   1       180   fffffe8013505a40       syz-execprog wait
1211   325 3   1       180   fffffe80134e8180       syz-execprog wait
1211   946 3   0       180   fffffe80134de580       syz-execprog kqueue
1211   332 3   1       180   fffffe80133de980       syz-execprog wait
1211  1312 3   0       180   fffffe80133de540       syz-execprog wait
1211  1245 3   0       180   fffffe80133de100       syz-execprog parked
1211  1108 3   1       180   fffffe80122fcb00       syz-execprog parked
1211  1207 3   1       180   fffffe80122fc6c0       syz-execprog wait
1211  1209 3   0       180   fffffe80122fc280       syz-execprog pipe_rd
1211  1323 3   0       180   fffffe80123592c0       syz-execprog parked
1211  1211 3   0     40180   fffffe8012b8a900       syz-execprog parked
1206  1206 3   0       180   fffffe8012b598c0               sshd select
1223  1223 3   0       180   fffffe8012b8a4c0              getty nanoslp
1151  1151 3   0       180   fffffe8012b8a080              getty nanoslp
1222  1222 3   1       180   fffffe80121feac0              getty nanoslp
1082  1082 3   0       1c0   fffffe80121fb200              getty ttyraw
1102  1102 3   0       180   fffffe8012503740               sshd select
1088  1088 3   0       180   fffffe8012503300             powerd kqueue
700    700 3   0       180   fffffe80125e5780            syslogd kqueue
747    747 3   0       180   fffffe8012b59480             dhcpcd poll
742    742 3   1       180   fffffe8012b59040             dhcpcd poll
466    466 3   0       180   fffffe8012503b80             dhcpcd poll
598    598 3   1       180   fffffe80125e5bc0             dhcpcd poll
292    292 3   0       180   fffffe80125e5340             dhcpcd poll
485    485 3   0       180   fffffe8012359700             dhcpcd poll
291    291 3   1       180   fffffe8012359b40             dhcpcd poll
1        1 3   0       180   fffffe8011ede100               init wait
0      557 3   0       200   fffffe80121fb640            physiod physiod
0      196 3   1       200   fffffe80121fe680          pooldrain pooldrain
0      195 3   0       200   fffffe80121fe240            ioflush syncer
0      194 3   0       200   fffffe80121fba80           pgdaemon pgdaemon
0      167 3   1       200   fffffe801216ba40               usb7 usbevt
0      172 3   1       200   fffffe801216b600               usb6 usbevt
0      170 3   1       200   fffffe801216b1c0               usb5 usbevt
0      168 3   1       200   fffffe801213ca00               usb4 usbevt
0      166 3   0       200   fffffe801213c5c0               usb3 usbevt
0      165 3   0       200   fffffe801213c180               usb2 usbevt
0       31 3   0       200   fffffe80120869c0               usb1 usbevt
0       63 3   1       200   fffffe8012086580               usb0 usbevt
0      126 3   1       200   fffffe8012086140         usbtask-dr usbtsk
0      125 3   1       200   fffffe8011ede980         usbtask-hc usbtsk
0      124 3   0       200   fffffe80103f5b00          swwreboot swwreboot
0      123 3   0       200   fffffe8011ede540             npfgc0 npfgcw
0      122 3   1       200   fffffe8011ed1940            rt_free rt_free
0      121 3   1       200   fffffe8011ed1500              unpgc unpgc
0      120 3   0       200   fffffe8011ed10c0    key_timehandler key_timehandler
0      119 3   1       200   fffffe8011ecc900    icmp6_wqinput/1 icmp6_wqinput
0      118 3   0       200   fffffe8011ecc4c0    icmp6_wqinput/0 icmp6_wqinput
0      117 3   0       200   fffffe8011ecc080          nd6_timer nd6_timer
0      116 3   1       200   fffffe8011cefbc0    carp6_wqinput/1 carp6_wqinput
0      115 3   0       200   fffffe8011cef780    carp6_wqinput/0 carp6_wqinput
0      114 3   1       200   fffffe8011cef340     carp_wqinput/1 carp_wqinput
0      113 3   0       200   fffffe8011eab8c0     carp_wqinput/0 carp_wqinput
0      112 3   1       200   fffffe8011eab480     icmp_wqinput/1 icmp_wqinput
0      111 3   0       200   fffffe8011cedb80     icmp_wqinput/0 icmp_wqinput
0      110 3   0       200   fffffe8011ced740           rt_timer rt_timer
0      109 3   0       200   fffffe8011eab040        vmem_rehash vmem_rehash
0      100 3   1       200   fffffe8011ced300          entbutler entropy
0       99 3   0       200   fffffe80117e0b40              viomb balloon
0       98 3   1       200   fffffe80117e0700      vioif0_txrx/1 vioif0_txrx
0       97 3   0       200   fffffe80117e02c0      vioif0_txrx/0 vioif0_txrx
0       30 3   0       200   fffffe80103f56c0           scsibus0 sccomp
0       29 3   0       200   fffffe80103f5280               pms0 pmsreset
0       28 3   1       200   fffffe80103daac0            xcall/1 xcall
0       27 1   1       200   fffffe80103da680          softser/1
0       26 1   1       200   fffffe80103da240          softclk/1
0       25 1   1       200   fffffe80103d8a80          softbio/1
0       24 1   1       200   fffffe80103d8640          softnet/1
0       23 1   1       201   fffffe80103d8200             idle/1
0       22 3   1       200   fffffe800f1f4a40           lnxsyswq lnxsyswq
0       21 3   1       200   fffffe800f1f4600           lnxubdwq lnxubdwq
0       20 3   0       200   fffffe800f1f41c0           lnxpwrwq lnxpwrwq
0       19 3   0       200   fffffe800f1f2a00           lnxlngwq lnxlngwq
0       18 3   0       200   fffffe800f1f25c0           lnxhipwq lnxhipwq
0       17 3   0       200   fffffe800f1f2180           lnxrcugc lnxrcugc
0       16 3   0       200   fffffe800f1ec9c0             sysmon smtaskq
0       15 3   0       200   fffffe800f1ec580         pmfsuspend pmfsuspend
0       14 3   0       200   fffffe800f1ec140           pmfevent pmfevent
0       13 3   0       200   fffffe800f1e9980         sopendfree sopendfr
0       12 3   0       200   fffffe800f1e9540             ifwdog ifwdog
0       11 3   0       200   fffffe800f1e9100            iflnkst iflnkst
0       10 3   1       200   fffffe800f1df940           nfssilly nfssilly
0        9 3   0       200   fffffe800f1df500             vdrain vdrain
0        8 3   1       200   fffffe800f1df0c0          modunload mod_unld
0        7 3   0       200   fffffe800ebdb900            xcall/0 xcall
0        6 1   0       200   fffffe800ebdb4c0          softser/0
0    >   5 7   0       200   fffffe800ebdb080          softclk/0
0        4 1   0       200   fffffe800ebd98c0          softbio/0
0        3 1   0       200   fffffe800ebd9480          softnet/0
0        2 1   0       201   fffffe800ebd9040             idle/0
0        0 3   0       200   ffffffff8686b880            swapper uvm
[Locks tracked through LWPs]

****** LWP 1256.1256 (syz-executor.4) @ 0xfffffe80135f2a80, l_stat=3

*** Locks held:

* Lock 0 (initialized at netbsd:pmap_ctor+0xc0 sys/arch/x86/x86/pmap.c:2860)
lock address : fffffe8012b85fc0
type         : sleep/adaptive
initialized  : netbsd:pmap_ctor+0xc0
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xfffffe80135f2a80 last held: 0xfffffe80135f2a80
last locked* : netbsd:pmap_enter_ma+0x11ce
unlocked     : netbsd:pmap_extract+0x72d
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

* Lock 1 (initialized at netbsd:pmap_ctor+0xd6 sys/arch/x86/x86/pmap.c:2861)
lock address : fffffe8012b85fc8
type         : sleep/adaptive
initialized  : netbsd:pmap_ctor+0xd6
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xfffffe80135f2a80 last held: 0xfffffe80135f2a80
last locked* : netbsd:pmap_find_ptp+0x412
unlocked     : netbsd:pmap_find_ptp+0x487
owner/count  : 000000000000000000 flags    : 000000000000000000
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 957.957 (syz-executor.2) @ 0xfffffe80135f2640, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:pmap_ctor+0xc0 sys/arch/x86/x86/pmap.c:2860)
lock address : fffffe8012b85e00
type         : sleep/adaptive
initialized  : netbsd:pmap_ctor+0xc0
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  1
relevant cpu :                  1 last held:                  1
relevant lwp : 0xfffffe80135f2640 last held: 000000000000000000
last locked  : netbsd:pmap_extract+0x130
unlocked*    : netbsd:pmap_extract+0x72d
owner field  : 0xfffffe80135f2640 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 1201.1201 (syz-execprog) @ 0xfffffe80135051c0, l_stat=2

*** Locks held:

* Lock 0 (initialized at netbsd:fork1+0x938 sys/kern/kern_fork.c:366)
lock address : fffffe8012b91e50
type         : sleep/adaptive
initialized  : netbsd:fork1+0x938
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  1
relevant lwp : 0xfffffe80135051c0 last held: 0xfffffe80135051c0
last locked* : netbsd:execve_loadvm+0x708
unlocked     : 0
owner/count  : 0xfffffe80135051c0 flags    : 0x0000000000000004
Turnstile: no active turnstile for this lock.

* Lock 1 (initialized at netbsd:amap_ctor+0xdf sys/uvm/uvm_amap.c:265)
lock address : fffffe801335b6c0
type         : sleep/adaptive
initialized  : netbsd:amap_ctor+0xdf
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  1
relevant lwp : 0xfffffe80135051c0 last held: 0xfffffe80135051c0
last locked* : netbsd:amap_unref+0x96
unlocked     : netbsd:uvm_fault_upper_enter+0x12e9
owner/count  : 0xfffffe80135051c0 flags    : 0x0000000000000004
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1244.1244 (syz-executor.3) @ 0xfffffe80134e85c0, l_stat=3

*** Locks held:

* Lock 0 (initialized at netbsd:pmap_ctor+0xc0 sys/arch/x86/x86/pmap.c:2860)
lock address : fffffe8012b858c0
type         : sleep/adaptive
initialized  : netbsd:pmap_ctor+0xc0
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  0 last held:                  0
relevant lwp : 0xfffffe80134e85c0 last held: 0xfffffe80134e85c0
last locked* : netbsd:pmap_enter_ma+0x11ce
unlocked     : netbsd:pmap_extract+0x72d
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1353.1363 (syz-executor.0) @ 0xfffffe80135f2200, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:config_init+0xb9 sys/kern/subr_autoconf.c:366)
lock address : netbsd:config_misc_lock
type         : sleep/adaptive
initialized  : netbsd:config_init+0xb9
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  1
relevant lwp : 0xfffffe80135f2200 last held: 000000000000000000
last locked  : netbsd:config_detach_commit+0x41
unlocked*    : netbsd:vdevgone+0x20c
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 742.742 (dhcpcd) @ 0xfffffe8012b59040, 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 : 0xfffffe8012b59040 last held: 000000000000000000
last locked  : 0
unlocked*    : 0
owner field  : 000000000000000000 wait/spin:                0/0
Turnstile: no active turnstile for this lock.

****** LWP 466.466 (dhcpcd) @ 0xfffffe8012503b80, 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 : 0xfffffe8012503b80 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) @ 0xfffffe8012359700, 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 : 0xfffffe8012359700 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) @ 0xfffffe8012359b40, 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 : 0xfffffe8012359b40 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) @ 0xfffffe800f1e9100, 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 : 0xfffffe800f1e9100 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) @ 0xfffffe800ebdb080, l_stat=7

*** 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 : 0xfffffe800ebdb080 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) @ 0xffffffff8686b880, 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 : 0xffffffff8686b880 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:main+0x354 sys/kern/init_main.c:303)
lock address : netbsd:kernel_lock
type         : spin
initialized  : netbsd:main+0x354
shared holds :                  0 exclusive:                  1
shares wanted:                  0 exclusive:                  0
relevant cpu :                  1 last held:                  1
relevant lwp : 0xfffffe801360a240 last held: 0xfffffe801360a240
last locked* : netbsd:config_detach+0x71
unlocked     : netbsd:frag6_fasttimo+0x326
curcpu holds :                  1 wanted by: 000000000000000000

* Lock 1 (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 : 0xfffffe801360a240 last held: 0xfffffe801360a240
last locked* : netbsd:vpanic+0x624
unlocked     : netbsd:printf+0x2ce
owner field  : 0x0000000000000800 wait/spin:                0/1

              PAGE FLAG   PQ            UOBJECT              UANON
0xfffffe8000017180 0001 00000000                0x0                0x0
0xfffffe8000017200 0041 00000000                0x0                0x0
0xfffffe8000017280 0041 00000000                0x0                0x0
0xfffffe8000017300 0041 00000000                0x0                0x0
0xfffffe8000017380 0041 00000000                0x0                0x0
0xfffffe8000017400 0041 00000000                0x0                0x0
0xfffffe8000017480 0041 00000000                0x0                0x0
0xfffffe8000017500 0041 00000000                0x0                0x0
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0xfffffe8000023e00 0001 00000000                0x0                0x0
0xfffffe8000023e80 0001 00000000                0x0                0x0
0xfffffe8000023f00 0001 00000000                0x0                0x0
0xfffffe8000023f80 0001 00000000                0x0                0x0
0xfffffe8000024000 0001 00000000                0x0                0x0
0xfffffe8000024080 0001 00000000                0x0                0x0
0xfffffe8000024100 0001 00000000                0x0                0x0
0xfffffe8000024180 0001 00000000                0x0                0x0
0xfffffe8000024200 0001 00000000                0x0                0x0
0xfffffe8000024280 0001 00000000                0x0                0x0
0xfffffe8000024300 0001 00000000                0x0                0x0
0xfffffe8000024380 0001 00000000                0x0                0x0
0xfffffe8000024400 0001 00000000                0x0                0x0
0xfffffe8000024480 0001 00000000                0x0                0x0
0xfffffe8000024500 0001 00000000                0x0                0x0
0xfffffe8000024580 0001 00000000                0x0                0x0
0xfffffe8000024600 0001 00000000                0x0                0x0
0xfffffe8000024680 0001 00000000                0x0                0x0
0xfffffe8000024700 0001 00000000                0x0                0x0
0xfffffe8000024780 0001 00000000                0x0                0x0
0xfffffe8000024800 0001 00000000                0x0                0x0
0xfffffe8000024880 0001 00000000                0x0                0x0
0xfffffe8000024900 0001 00000000                0x0                0x0
0xfffffe8000024980 0001 00000000                0x0                0x0
0xfffffe8000024a00 0001 00000000                0x0                0x0
0xfffffe8000024a80 0001 00000000                0x0                0x0
0xfffffe8000024b00 0001 00000000                0x0                0x0
0xfffffe8000024b80 0001 00000000                0x0                0x0
0xfffffe8000024c00 0001 00000000                0x0                0x0
0xfffffe8000024c80 0001 00000000                0x0                0x0
0xfffffe8000024d00 0001 00000000                0x0                0x0
0xfffffe8000024d80 0001 00000000                0x0                0x0
0xfffffe8000024e00 0001 00000000                0x0                0x0
0xfffffe8000024e80 0001 00000000                0x0                0x0
0xfffffe8000024f00 0001 00000000                0x0                0x0
0xfffffe8000024f80 0001 00000000                0x0                0x0
0xfffffe8000025000 0001 00000000                0x0                0x0
0xfffffe8000025080 0001 00000000                0x0                0x0
0xfffffe8000025100 0001 00000000                0x0                0x0
0xfffffe8000025180 0001 00000000                0x0                0x0
0xfffffe8000025200 0001 00000000                0x0                0x0
0xfffffe8000025280 0001 00000000                0x0                0x0
0xfffffe8000025300 0001 00000000                0x0                0x0
0xfffffe8000025380 0001 00000000                0x0                0x0
0xfffffe8000025400 0001 00000000                0x0                0x0
0xfffffe8000025480 0001 00000000                0x0                0x0
0xfffffe8000025500 0001 00000000                0x0                0x0
0xfffffe8000025580 0001 00000000                0x0                0x0
0xfffffe8000025600 0001 00000000                0x0                0x0
0xfffffe8000025680 0001 00000000                0x0                0x0
0xfffffe8000025700 0001 00000000                0x0                0x0
0xfffffe8000025780 0001 00000000                0x0                0x0
0xfffffe8000025800 0001 00000000                0x0                0x0
0xfffffe8000025880 0001 00000000                0x0                0x0
0xfffffe8000025900 0001 00000000                0x0                0x0
0xfffffe8000025980 0001 00000000                0x0                0x0
0xfffffe8000025a00 0001 00000000                0x0                0x0
0xfffffe8000025a80 0001 00000000                0x0                0x0
0xfffffe8000025b00 0001 00000000                0x0                0x0
0xfffffe8000025b80 0001 00000000                0x0                0x0
0xfffffe8000025c00 0001 00000000                0x0                0x0
0xfffffe8000025c80 0001 00000000                0x0                0x0
0xfffffe8000025d00 0001 00000000                0x0                0x0
0xfffffe8000025d80 0001 00000000                0x0                0x0
0xfffffe8000025e00 0001 00000000                0x0                0x0
0xfffffe8000025e80 0001 00000000                0x0                0x0
0xfffffe8000025f00 0001 00000000                0x0                0x0
0xfffffe8000025f80 0001 00000000                0x0                0x0
0xfffffe8000026000 0001 00000000                0x0                0x0
0xfffffe8000026080 0001 00000000                0x0                0x0
0xfffffe8000026100 0001 00000000                0x0                0x0
0xfffffe8000026180 0001 00000000                0x0                0x0
0xfffffe8000026200 0001 00000000                0x0                0x0
0xfffffe8000026280 0001 00000000                0x0                0x0
0xfffffe8000026300 0001 00000000                0x0                0x0
0xfffffe8000026380 0001 00000000                0x0                0x0
0xfffffe8000026400 0001 00000000                0x0                0x0
0xfffffe8000026480 0001 00000000                0x0                0x0
0xfffffe8000026500 0001 00000000                0x0                0x0
0xfffffe8000026580 0001 00000000                0x0                0x0
0xfffffe8000026600 0001 00000000                0x0                0x0
0xfffffe8000026680 0001 00000000                0x0                0x0
0xfffffe8000026700 0001 00000000                0x0                0x0
0xfffffe8000026780 0001 00000000                0x0                0x0
0xfffffe8000026800 0001 00000000                0x0                0x0
0xfffffe8000026880 0001 00000000                0x0                0x0
0xfffffe8000026900 0001 00000000                0x0                0x0
0xfffffe8000026980 0001 00000000                0x0                0x0
0xfffffe8000026a00 0001 00000000                0x0                0x0
0xfffffe8000026a80 0001 00000000                0x0                0x0
0xfffffe8000026b00 0001 00000000                0x0                0x0
0xfffffe8000026b80 0001 00000000                0x0                0x0
0xfffffe8000026c00 0001 00000000                0x0                0x0
0xfffffe8000026c80 0001 00000000                0x0                0x0
0xfffffe8000026d00 0001 00000000                0x0                0x0
0xfffffe8000026d80 0001 00000000                0x0                0x0
0xfffffe8000026e00 0001 00000000                0x0                0x0
0xfffffe8000026e80 0001 00000000                0x0                0x0
0xfffffe8000026f00 0001 00000000                0x0                0x0
0xfffffe8000026f80 0001 00000000                0x0                0x0
0xfffffe8000027000 0001 00000000                0x0                0x0
0xfffffe8000027080 0001 00000000                0x0                0x0
0xfffffe8000027100 0001 00000000                0x0                0x0
0xfffffe8000027180 0001 00000000                0x0                0x0
0xfffffe8000027200 0001 00000000                0x0                0x0
0xfffffe8000027280 0001 00000000                0x0                0x0
0xfffffe8000027300 0001 00000000                0x0                0x0
0xfffffe8000027380 0001 00000000                0x0                0x0
0xfffffe8000027400 0001 00000000                0x0                0x0
0xfffffe8000027480 0001 00000000                0x0                0x0
0xfffffe8000027500 0001 00000000                0x0                0x0
0xfffffe8000027580 0001 00000000                0x0                0x0
0xfffffe8000027600 0001 00000000                0x0                0x0
0xfffffe8000027680 0001 00000000                0x0                0x0
0xfffffe8000027700 0001 00000000                0x0                0x0
0xfffffe8000027780 0001 00000000                0x0                0x0
0xfffffe8000027800 0001 00000000                0x0                0x0
0xfffffe8000027880 0001 00000000                0x0                0x0
0xfffffe8000027900 0001 00000000                0x0                0x0
0xfffffe8000027980 0001 00000000                0x0                0x0
0xfffffe8000027a00 0001 00000000                0x0                0x0
0xfffffe8000027a80 0001 00000000                0x0                0x0
0xfffffe8000027b00 0001 00000000                0x0                0x0
0xfffffe8000027b80 0001 00000000                0x0                0x0
0xfffffe8000027c00 0001 00000000                0x0                0x0
0xfffffe8000027c80 0001 00000000                0x0                0x0
0xfffffe8000027d00 0001 00000000                0x0                0x0
0xfffffe8000027d80 0001 00000000                0x0                0x0
0xfffffe8000027e00 0001 00000000                0x0                0x0
0xfffffe8000027e80 0001 00000000                0x0                0x0
0xfffffe8000027f00 0001 00000000                0x0                0x0
0xfffffe8000027f80 0001 00000000                0x0                0x0
0xfffffe8000028000 0001 00000000                0x0                0x0
0xfffffe8000028080 0001 00000000                0x0                0x0
0xfffffe8000028100 0001 00000000                0x0                0x0
0xfffffe8000028180 0001 00000000                0x0                0x0
0xfffffe8000028200 0001 00000000                0x0                0x0
0xfffffe8000028280 0001 00000000                0x0                0x0
0xfffffe8000028300 0001 00000000                0x0                0x0
0xfffffe8000028380 0001 00000000                0x0                0x0
0xfffffe8000028400 0001 00000000                0x0                0x0
0xfffffe8000028480 0001 00000000                0x0                0x0
0xfffffe8000028500 0001 00000000                0x0                0x0
0xfffffe8000028580 0001 00000000                0x0                0x0
0xfffffe8000028600 0001 00000000                0x0                0x0
0xfffffe8000028680 0001 00000000                0x0                0x0
0xfffffe8000028700 0001 00000000                0x0                0x0
0xfffffe8000028780 0001 00000000                0x0                0x0
0xfffffe8000028800 0001 00000000                0x0                0x0
0xfffffe8000028880 0001 00000000                0x0                0x0
0xfffffe8000028900 0001 00000000                0x0                0x0
0xfffffe8000028980 0001 00000000                0x0                0x0
0xfffffe8000028a00 0001 00000000                0x0                0x0
0xfffffe8000028a80 0001 00000000                0x0                0x0
0xfffffe8000028b00 0001 00000000                0x0                0x0
0xfffffe8000028b80 0001 00000000                0x0                0x0
0xfffffe8000028c00 0001 00000000                0x0                0x0
0xfffffe8000028c80 0001 00000000                0x0                0x0
0xfffffe8000028d00 0001 00000000                0x0                0x0
0xfffffe8000028d80 0001 00000000                0x0                0x0
0xfffffe8000028e00 0001 00000000                0x0                0x0
0xfffffe8000028e80 0001 00000000                0x0                0x0
0xfffffe8000028f00 0001 00000000                0x0                0x0
0xfffffe8000028f80 0001 00000000                0x0                0x0
0xfffffe8000029000 0001 00000000                0x0                0x0
0xfffffe8000029080 0001 00000000                0x0                0x0
0xfffffe8000029100 0001 00000000                0x0                0x0
0xfffffe8000029180 0001 00000000                0x0                0x0
0xfffffe8000029200 0001 00000000                0x0                0x0
0xfffffe8000029280 0001 00000000                0x0                0x0
0xfffffe8000029300 0001 00000000                0x0                0x0
0xfffffe8000029380 0001 00000000                0x0                0x0
0xfffffe8000029400 0001 00000000                0x0                0x0
0xfffffe8000029480 0001 00000000                0x0                0x0
0xfffffe8000029500 0001 00000000                0x0                0x0
0xfffffe8000029580 0001 00000000                0x0                0x0
0xfffffe8000029600 0001 00000000                0x0                0x0
0xfffffe8000029680 0001 00000000                0x0                0x0
0xfffffe8000029700 0001 00000000                0x0                0x0
0xfffffe8000029780 0001 00000000                0x0                0x0
0xfffffe8000029800 0001 00000000                0x0                0x0
0xfffffe8000029880 0001 00000000                0x0                0x0
0xfffffe8000029900 0001 00000000                0x0                0x0
0xfffffe8000029980 0001 00000000                0x0                0x0
0xfffffe8000029a00 0001 00000000                0x0                0x0
0xfffffe8000029a80 0001 00000000                0x0                0x0
0xfffffe8000029b00 0001 00000000                0x0                0x0
0xfffffe8000029b80 0001 00000000                0x0                0x0
0xfffffe8000029c00 0001 00000000                0x0                0x0
0xfffffe8000029c80 0001 00000000                0x0                0x0
0xfffffe8000029d00 0001 00000000                0x0                0x0
0xfffffe8000029d80 0001 00000000                0x0                0x0
0xfffffe8000029e00 0001 00000000                0x0                0x0
0xfffffe8000029e80 0001 00000000                0x0                0x0
0xfffffe8000029f00 0001 00000000                0x0                0x0
0xfffffe8000029f80 0001 00000000                0x0                0x0
0xfffffe800002a000 0001 00000000                0x0                0x0
0xfffffe800002a080 0001 00000000                0x0                0x0
0xfffffe800002a100 0001 00000000                0x0                0x0
0xfffffe800002a180 0001 00000000                0x0                0x0
0xfffffe800002a200 0001 00000000                0x0                0x0
0xfffffe800002a280 0001 00000000                0x0                0x0
0xfffffe800002a300 0001 00000000                0x0                0x0
0xfffffe800002a380 0001 00000000                0x0                0x0
0xfffffe800002a400 0001 00000000                0x0                0x0
0xfffffe800002a480 0001 00000000                0x0                0x0

Tested on:

commit:         f33399dc t_sed.sh: add a test case for relative addres..
git tree:       https://github.com/NetBSD/src trunk
console output: https://syzkaller.appspot.com/x/log.txt?x=165a5814280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=e46f31fe56e04f567d88
compiler:       Debian clang version 15.0.7

Note: no patches were applied.

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