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ZTS: zvol_stress: fix race condition with zinject usage

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In automated ZTS runs, I'd occasionally hit

    log_fail "Expected to see some write errors"

because there weren't any write errors.

The reason is that we're not syncing the zpool before `zinject -c`.
If the writes by `dd` aren't synced out at the time `zinject -c` runs,
they will not hit an error and we'll hit the log_fail above.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Christian Schwarz <christian.schwarz@nutanix.com>
Closes #13793
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Christian Schwarz 2022-08-25 23:22:10 +02:00 committed by GitHub
parent 9f346abbe8
commit 5bc0318047
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tests/zfs-tests/tests/functional/zvol/zvol_stress/zvol_stress.ksh
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@ -151,6 +151,7 @@ for DISK in $DISKS ; do
log_must zinject -d $DISK -f 10 -e io -T write $TESTPOOL
done
log_must dd if=/dev/zero of=$ZVOL_DEVDIR/$TESTPOOL/testvol1 bs=512 count=50
sync_pool $TESTPOOL
log_must zinject -c all
# We should see write errors