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3cee7cb269
This avoids injecting errors into the test system's mirrors. gnop seems like a good solution here but it injects errors at the wrong place vs where these tests expect and does not support a 'max global count' like the failpoints do with 'n*' syntax. Reviewed by: cem, vangyzen Sponsored by: Dell EMC Isilon
81 lines
2 KiB
Bash
81 lines
2 KiB
Bash
#!/bin/sh
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# $FreeBSD$
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# Test handling of write errors.
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. $(dirname $0)/conf.sh
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echo 1..4
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set -e
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ddbs=2048
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regwritefp="debug.fail_point.g_mirror_regular_request_write"
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m1=$(mktemp $base.XXXXXX)
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m2=$(mktemp $base.XXXXXX)
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dd if=/dev/random of=$m1 bs=$ddbs count=1024 >/dev/null 2>&1
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dd if=/dev/zero of=$m2 bs=$ddbs count=1024 >/dev/null 2>&1
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us0=$(attach_md -t vnode -f $m1)
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us1=$(attach_md -t vnode -f $m2)
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gmirror label $name /dev/$us0 /dev/$us1
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devwait
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tmp1=$(mktemp $base.XXXXXX)
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tmp2=$(mktemp $base.XXXXXX)
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dd if=/dev/random of=$tmp1 bs=$ddbs count=1 >/dev/null 2>&1
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ENXIO=6
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# gmirror has special handling for ENXIO. It does not mark the failed component
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# as broken, allowing it to rejoin the mirror automatically when it appears.
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sysctl ${regwritefp}="1*return(${ENXIO})[pid $(gmirror_worker_pid)]"
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dd if=$tmp1 of=/dev/mirror/$name bs=$ddbs count=1 >/dev/null 2>&1
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dd if=/dev/mirror/$name of=$tmp2 bs=$ddbs count=1 >/dev/null 2>&1
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sysctl ${regwritefp}='off'
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if cmp -s $tmp1 $tmp2; then
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echo "ok 1"
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else
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echo "not ok 1"
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fi
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# Verify that the genids still match after ENXIO.
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genid1=$(gmirror dump /dev/$us0 | awk '/^[[:space:]]*genid: /{print $2}')
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genid2=$(gmirror dump /dev/$us1 | awk '/^[[:space:]]*genid: /{print $2}')
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if [ $genid1 -eq $genid2 ]; then
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echo "ok 2"
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else
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echo "not ok 2"
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fi
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# The ENXIO should have caused a syncid bump.
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syncid1=$(gmirror dump /dev/$us0 | awk '/^[[:space:]]*syncid: /{print $2}')
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syncid2=$(gmirror dump /dev/$us1 | awk '/^[[:space:]]*syncid: /{print $2}')
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if [ $syncid1 -eq $(($syncid2 + 1)) -o $syncid2 -eq $(($syncid1 + 1)) ]; then
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echo "ok 3"
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else
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echo "not ok 3"
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fi
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# Force a retaste of the disconnected component.
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if [ $(gmirror status -s $name | awk '{print $3}') = $us0 ]; then
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detach_md $us1
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us1=$(attach_md -t vnode -f $m2)
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else
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detach_md $us0
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us0=$(attach_md -t vnode -f $m1)
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fi
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# Make sure that the retaste caused the mirror to automatically be re-added.
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if [ $(gmirror status -s $name | wc -l) -eq 2 ]; then
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echo "ok 4"
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else
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echo "not ok 4"
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fi
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syncwait
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rm -f $m1 $m2 $tmp1 $tmp2
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