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