multicore build error (16)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: c7c3c873e254 Thinkpad -> ThinkPad
git tree: openbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=176f9220880000
kernel config: https://syzkaller.appspot.com/x/.config?x=7058272de1526588
dashboard link: https://syzkaller.appspot.com/bug?extid=d392c2b1539052e04872

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/0dd32bb10c07/disk-c7c3c873.raw.xz
bsd.gdb: https://storage.googleapis.com/syzbot-assets/59469e723d15/bsd-c7c3c873.gdb.xz
kernel image: https://storage.googleapis.com/syzbot-assets/d6fec4cbb61c/kernel-c7c3c873.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d392c2...@syzkaller.appspotmail.com

failed to run ["/bin/sh" "-c" "set -eux\nOVERLAY=\"/syzkaller/userspace-multicore/overlay\"\n# Cleanup in case something failed before.\nsync\ndoas umount /altroot || true\ndoas vnconfig -u vnd0 || true\n\ndoas /sbin/vnconfig vnd0 image\ndoas mount /dev/vnd0a /altroot\ndoas cp kernel /altroot/bsd\ntest -d \"$OVERLAY\" && doas cp -Rf \"$OVERLAY\"/. /altroot\nsync\ndoas umount /altroot\ndoas vnconfig -u vnd0\n"]: exit status 1

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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.