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ZTS: send-c_volume is flaky

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We use block_device_wait to wait for the zvol block device to 
actually appear, and we log the result of the dd calls by using 
an intermediate file.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: John Wren Kennedy <john.kennedy@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #14767
This commit is contained in:
Paul Dagnelie 2023-04-19 13:20:02 -07:00 committed by Brian Behlendorf
parent e2a96aa4eb
commit e1b3ab5f51
1 changed files with 7 additions and 2 deletions
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9
tests/zfs-tests/tests/functional/rsend/send-c_volume.ksh
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@ -29,6 +29,7 @@
function cleanup
{
rm $BACKDIR/copy
log_must_busy zfs destroy -r $vol
cleanup_pool $POOL2
}
@ -60,7 +61,9 @@ log_must eval "zfs recv -d $POOL2 <$BACKDIR/full"
verify_stream_size $BACKDIR/full $vol
verify_stream_size $BACKDIR/full $vol2
md5=$(dd if=$voldev2 bs=1024k count=$megs 2>/dev/null | md5digest)
block_device_wait $voldev2
log_must dd if=$voldev2 of=$BACKDIR/copy bs=1024k count=$megs
md5=$(md5digest $BACKDIR/copy)
[[ $md5 = $md5_1 ]] || log_fail "md5 mismatch: $md5 != $md5_1"
# Repeat, for an incremental send
@ -72,7 +75,9 @@ log_must eval "zfs recv -d $POOL2 <$BACKDIR/inc"
verify_stream_size $BACKDIR/inc $vol 90 $vol@snap
verify_stream_size $BACKDIR/inc $vol2 90 $vol2@snap
md5=$(dd skip=$megs if=$voldev2 bs=1024k count=$megs 2>/dev/null | md5digest)
block_device_wait $voldev2
log_must dd skip=$megs if=$voldev2 of=$BACKDIR/copy bs=1024k count=$megs
md5=$(md5digest $BACKDIR/copy)
[[ $md5 = $md5_2 ]] || log_fail "md5 mismatch: $md5 != $md5_2"
log_pass "Verify compressed send works with volumes"