From 489bea7ee8e1dbecfa517b8415568044ab57c73a Mon Sep 17 00:00:00 2001
From: Michael Tokarev <mjt@tls.msk.ru>
Date: Sat, 20 Dec 2014 08:48:44 +0000
Subject: mdadm (3.3.2-5) unstable; urgency=medium

  * use-tempnode-not-devnode.patch: change udev rules file to use
    $tempnode which works both on wheezy and jessie udev, instead
    of $devnode which only works in jessie.  At this stage it is
    better to make rules file compatible with old version instead
    of adding versioned dependency.  Should be removed for jessie+1.
    (Closes: #770883)
  * fix Closes: list in previous entry (Closes: #771852)

# imported from the archive
---
 tests/10ddf-fail-create-race | 66 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 tests/10ddf-fail-create-race

(limited to 'tests/10ddf-fail-create-race')

diff --git a/tests/10ddf-fail-create-race b/tests/10ddf-fail-create-race
new file mode 100644
index 00000000..bd5dfb51
--- /dev/null
+++ b/tests/10ddf-fail-create-race
@@ -0,0 +1,66 @@
+# This test creates a RAID1, fails a disk, and immediately
+# (simultaneously) creates a new array. This tests for a possible
+# race where the meta data reflecting the disk failure may not
+# be written when the 2nd array is created.
+. tests/env-ddf-template
+
+mdadm --zero-superblock $dev8 $dev9 $dev10 $dev11 $dev12 $dev13
+
+mdadm -CR $container -e ddf -l container -n 2 $dev11 $dev12
+#$dir/mdadm -CR $member0 -l raid1 -n 2 $container -z 10000  >/tmp/mdmon.txt 2>&1
+mdadm -CR $member0 -l raid1 -n 2 $container -z 10000
+check wait
+fail0=$dev11
+mdadm --fail $member0 $fail0 &
+
+# The test can succeed two ways:
+# 1) mdadm -C member1 fails - in this case the meta data
+# was already on disk when the create attempt was made
+# 2) mdadm -C succeeds in the first place (meta data not on disk yet),
+# but mdmon detects the problem and sets the disk faulty.
+
+if mdadm -CR $member1 -l raid1 -n 2 $container; then
+
+   echo create should have failed / race condition?
+
+   check wait
+   set -- $(get_raiddisks $member0)
+   d0=$1
+   ret=0
+   if [ $1 = $fail0 -o $2 = $fail0 ]; then
+       ret=1
+   else
+       set -- $(get_raiddisks $member1)
+       if [ $1 = $fail0 -o $2 = $fail0 ]; then
+	   ret=1
+       fi
+   fi
+   if [ $ret -eq 1 ]; then
+       echo ERROR: failed disk $fail0 is still a RAID member
+       echo $member0: $(get_raiddisks $member0)
+       echo $member1: $(get_raiddisks $member1)
+   fi
+   tmp=$(mktemp /tmp/mdest-XXXXXX)
+   mdadm -E $d0 >$tmp
+   if [ x$(grep -c 'state\[[01]\] : Degraded' $tmp) != x2 ]; then
+       echo ERROR: non-degraded array found
+       mdadm -E $d0
+       ret=1
+   fi
+   if ! grep -q '^  *0  *[0-9a-f]\{8\} .*Offline, Failed' $tmp; then
+       echo ERROR: disk 0 not marked as failed in meta data
+       mdadm -E $d0
+       ret=1
+   fi
+   rm -f $tmp
+else
+   ret=0
+fi
+
+[ -f /tmp/mdmon.txt ] && {
+    cat /tmp/mdmon.txt
+    rm -f /tmp/mdmon.txt
+}
+
+[ $ret -eq 0 ]
+
-- 
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