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37 lines
1.1 KiB
37 lines
1.1 KiB
2 years ago
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From 39b381252c32275079344d30de18b76fda4bba26 Mon Sep 17 00:00:00 2001
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From: Logan Gunthorpe <logang@deltatee.com>
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Date: Wed, 27 Jul 2022 15:52:45 -0600
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Subject: [PATCH 46/52] tests/00readonly: Run udevadm settle before setting ro
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In some recent kernel versions, 00readonly fails with:
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mdadm: failed to set readonly for /dev/md0: Device or resource busy
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ERROR: array is not read-only!
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This was traced down to a race condition with udev holding a reference
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to the block device at the same time as trying to set it read only.
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To fix this, call udevadm settle before setting the array read only.
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Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
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Signed-off-by: Jes Sorensen <jsorensen@fb.com>
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---
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tests/00readonly | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/tests/00readonly b/tests/00readonly
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index 39202487..afe243b3 100644
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--- a/tests/00readonly
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+++ b/tests/00readonly
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@@ -12,6 +12,7 @@ do
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$dev1 $dev2 $dev3 $dev4 --assume-clean
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check nosync
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check $level
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+ udevadm settle
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mdadm -ro $md0
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check readonly
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state=$(cat /sys/block/md0/md/array_state)
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--
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2.31.1
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