#!/bin/sh
## Reproduce zdb core dump on:
# FreeBSD 15.0-CURRENT #0 main-n266452-070d9e3540e6: Thu Nov 16 17:53:15 CET 2023
# This include  "zfs: merge openzfs/zfs@887a3c533"

set -eu

rm -f zdb.core

# Create 4 virtual disks (Need 4GB available in /tmp)
for i in {1..4}; do
  truncate -s 1G /tmp/disk$i.img
done

# Reproduce a simpler version of cddl/zfs/tests/replacement/replacement_002_pos.ksh
zpool create -f testpool raidz1 /tmp/disk1.img /tmp/disk2.img /tmp/disk3.img
zpool status
zfs create testpool/testfs
zfs set mountpoint=/testdir testpool/testfs
echo "Convert /dev/md1 into a mirror by attaching a new disk to it...This should be prevented"
# Previous version "cannot attach /dev/md4 to /dev/md1: can only attach to mirrors and top-level disks"
# works on: 15.0-CURRENT FreeBSD 15.0-CURRENT #11 main-n265732-166a655fcf1: Thu Oct  5 03:22:24 PDT 2023
zpool attach testpool /tmp/disk1.img /tmp/disk4.img && echo "First bug triggered: attach worked" || echo "First bug not triggered!"
zpool status
zpool export testpool
zpool import testpool -d /tmp
zfs umount testpool/testfs
echo "zdb verifying checksum... should not panic"
zdb -cdui testpool/testfs && echo "Second bug not triggered (zdb didn't fails)" || echo "Second bug triggered (zdb fails)"
if [ -f zdb.core ]; then
        echo "Second bug triggered: Core file found"
else
        echo "Second bug not triggered: No core file found"
fi

# Cleanup
zpool export testpool
for i in {1..4}; do
  rm /tmp/disk$i.img
done