panic: 1 -> 1

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: e3286ae6 fix printf formats
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=17fdf1e6e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=824b23e1f4b6c76b
dashboard link: https://syzkaller.appspot.com/bug?extid=8d074484685b23ac22bf

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

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+8d0744...@syzkaller.appspotmail.com

ddb.onpanic: 1 -> 1
ddb.commandonenter: -> "show panic;bt;show registers;ps;show all
locks;show all pages;show all pools"
ddb.lines: 24 -> 0
ddb.maxwidth: 80 -> 0
Starting network.
IPv6 mode: host
Configuring network interfaces: vioif0[ 47.3291778] vioif0: link state UP
(was UNKNOWN)
vioif0: carrier acquired
DUID 00:01:00:01:25:45:85:b7:52:54:00:12:34:56
vioif0: IAID 0a:80:00:93
vioif0: adding address fe80::14b6:a66c:552d:512c
vioif0: soliciting an IPv6 router
vioif0: rebinding lease of 10.128.0.147
vioif0: leased 10.128.0.147 for 86400 seconds
vioif0: adding route to 10.128.0.147/32
vioif0: adding host route to 10.128.0.1
vioif0: adding default route via 10.128.0.1
vioif0: Setting hostname: ci2-netbsd-kubsan-3.c.syzkaller.internal
forked to background, child pid 214
.
Adding interface aliases:.
Waiting for DAD to complete for statically configured addresses...
Starting dhcpcd.
dhcp_bind: Address already in use


---
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[Maxime Villard]

garbage

#syz invalid