| From 39b381252c32275079344d30de18b76fda4bba26 Mon Sep 17 00:00:00 2001 |
| From: Logan Gunthorpe <logang@deltatee.com> |
| Date: Wed, 27 Jul 2022 15:52:45 -0600 |
| Subject: [PATCH] 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. |
| |
| Upstream-Status: Backport [https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/commit/?id=39b381252c32275079344d30de18b76fda4bba26] |
| |
| Signed-off-by: Logan Gunthorpe <logang@deltatee.com> |
| Signed-off-by: Jes Sorensen <jsorensen@fb.com> |
| Signed-off-by: Mingli Yu <mingli.yu@windriver.com> |
| --- |
| tests/00readonly | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| 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) |
| -- |
| 2.25.1 |
| |