1#!/bin/sh 2# $FreeBSD$ 3 4# Test handling of read errors. 5 6. $(dirname $0)/conf.sh 7 8echo 1..3 9 10set -e 11 12ddbs=2048 13regreadfp="debug.fail_point.g_mirror_regular_request_read" 14m1=$(mktemp $base.XXXXXX) 15m2=$(mktemp $base.XXXXXX) 16 17dd if=/dev/random of=$m1 bs=$ddbs count=1024 >/dev/null 2>&1 18dd if=/dev/zero of=$m2 bs=$ddbs count=1024 >/dev/null 2>&1 19 20us0=$(attach_md -t vnode -f $m1) 21us1=$(attach_md -t vnode -f $m2) 22 23gmirror label $name /dev/$us0 24gmirror insert $name /dev/$us1 25devwait 26syncwait 27 28tmp1=$(mktemp $base.XXXXXX) 29tmp2=$(mktemp $base.XXXXXX) 30 31EIO=5 32# gmirror should retry a failed read from the other mirror. 33sysctl ${regreadfp}="1*return(${EIO})[pid $(gmirror_worker_pid)]" 34dd if=/dev/mirror/$name of=$tmp1 iseek=256 bs=$ddbs count=1 >/dev/null 2>&1 35dd if=/dev/$us1 of=$tmp2 iseek=256 bs=$ddbs count=1 >/dev/null 2>&1 36sysctl ${regreadfp}='off' 37 38if cmp -s $tmp1 $tmp2; then 39 echo "ok 1" 40else 41 echo "not ok 1" 42fi 43 44# Make sure that one of the mirrors was marked broken. 45genid1=$(gmirror dump /dev/$us0 | awk '/^[[:space:]]*genid: /{print $2}') 46genid2=$(gmirror dump /dev/$us1 | awk '/^[[:space:]]*genid: /{print $2}') 47if [ $genid1 -eq $(($genid2 + 1)) -o $genid2 -eq $(($genid1 + 1)) ]; then 48 echo "ok 2" 49else 50 echo "not ok 2" 51fi 52 53# Force a retaste of the disconnected component. 54if [ $(gmirror status -s $name | awk '{print $3}') = $us0 ]; then 55 detach_md $us1 56 us1=$(attach_md -t vnode -f $m2) 57else 58 detach_md $us0 59 us0=$(attach_md -t vnode -f $m1) 60fi 61 62# Make sure that the component wasn't re-added to the gmirror. 63if [ $(gmirror status -s $name | wc -l) -eq 1 ]; then 64 echo "ok 3" 65else 66 echo "not ok 3" 67fi 68 69rm -f $m1 $m2 $tmp1 $tmp2 70