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authorLogan Gunthorpe <logang@deltatee.com>2022-07-27 23:52:45 +0200
committerJes Sorensen <jsorensen@fb.com>2022-08-23 15:41:28 +0200
commit39b381252c32275079344d30de18b76fda4bba26 (patch)
tree74ca20fbdd168d3f926e144c675e2778c5d1b5a6 /tests
parentmdadm: Replace obsolete usleep with nanosleep (diff)
downloadmdadm-39b381252c32275079344d30de18b76fda4bba26.tar.xz
mdadm-39b381252c32275079344d30de18b76fda4bba26.zip
tests/00readonly: Run udevadm settle before setting ro
In some recent kernel versions, 00readonly fails with: mdadm: failed to set readonly for /dev/md0: Device or resource busy ERROR: array is not read-only! This was traced down to a race condition with udev holding a reference to the block device at the same time as trying to set it read only. To fix this, call udevadm settle before setting the array read only. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Diffstat (limited to 'tests')
-rw-r--r--tests/00readonly1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/00readonly b/tests/00readonly
index 39202487..afe243b3 100644
--- a/tests/00readonly
+++ b/tests/00readonly
@@ -12,6 +12,7 @@ do
$dev1 $dev2 $dev3 $dev4 --assume-clean
check nosync
check $level
+ udevadm settle
mdadm -ro $md0
check readonly
state=$(cat /sys/block/md0/md/array_state)