Merging upstream version 4.2+20230223.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tests/00createnames

@@ -0,0 +1,93 @@
+set -x -e
+
+# Test how <devname> and --name= are handled for create mode.
+# We need to check three properties, generated from those parameters:
+# - devnode name
+# - link in /dev/md/ (MD_DEVNAME property from --detail --export)
+# - name in metadata (MD_NAME property from --examine --export)
+
+function _verify() {
+  local DEVNODE_NAME="$1"
+  local WANTED_LINK="$2"
+  local WANTED_NAME="$3"
+
+  local RES="$(mdadm -D --export $DEVNODE_NAME | grep MD_DEVNAME)"
+  if [[ "$?" != "0" ]]; then
+    echo "Cannot get details for $DEVNODE_NAME - unexpected devnode."
+    exit 1
+  fi
+
+  if [[ "$WANTED_LINK" != "empty" ]]; then
+    local EXPECTED="MD_DEVNAME=$WANTED_LINK"
+      if [[ "$RES" != "$EXPECTED" ]]; then
+        echo "$RES doesn't match $EXPECTED."
+        exit 1
+      fi
+  fi
+
+
+  local RES="$(mdadm -E --export $dev0 | grep MD_NAME)"
+  if [[ "$?" != "0" ]]; then
+    echo "Cannot get metadata from $dev0."
+    exit 1
+  fi
+
+  local EXPECTED="MD_NAME=$(hostname):$WANTED_NAME"
+  if [[ "$RES" != "$EXPECTED" ]]; then
+    echo "$RES doesn't match $EXPECTED."
+    exit 1
+  fi
+}
+
+function _create() {
+  local DEVNAME=$1
+  local NAME=$2
+
+  if [[ -z "$NAME" ]]; then
+    mdadm -CR "$DEVNAME" -l0 -n 1 $dev0 --force
+  else
+    mdadm -CR "$DEVNAME" --name="$NAME" -l0 -n 1 $dev0 --force
+  fi
+
+  if [[ "$?" != "0" ]]; then
+    echo "Cannot create device."
+    exit 1
+  fi
+}
+
+# The most trivial case.
+_create "/dev/md/name"
+_verify "/dev/md127" "name" "name"
+mdadm -S "/dev/md127"
+
+_create "name"
+_verify "/dev/md127" "name" "name"
+mdadm -S "/dev/md127"
+
+# Use 'mdX' as name.
+_create "/dev/md/md0"
+_verify "/dev/md127" "md0" "md0"
+mdadm -S "/dev/md127"
+
+_create "md0"
+_verify "/dev/md127" "md0" "md0"
+mdadm -S "/dev/md127"
+
+# <devnode> is used to create MD_DEVNAME but, name is used to create MD_NAME.
+_create "/dev/md/devnode" "name"
+_verify "/dev/md127" "devnode" "name"
+mdadm -S "/dev/md127"
+
+_create "devnode" "name"
+_verify "/dev/md127" "devnode" "name"
+mdadm -S "/dev/md127"
+
+# Devnode points to /dev/ directory. MD_DEVNAME doesn't exist.
+_create "/dev/md0"
+_verify "/dev/md0" "empty" "0"
+mdadm -S "/dev/md0"
+
+# Devnode points to /dev/ directory and name is set.
+_create "/dev/md0" "name"
+_verify "/dev/md0" "empty" "name"
+mdadm -S "/dev/md0"

tests/00raid0

@@ -6,11 +6,9 @@ check raid0
 testdev $md0 3 $mdsize2_l 512
 mdadm -S $md0
 
-# now with version-0.90 superblock
+# verify raid0 with layouts fail for 0.90
 mdadm -CR $md0 -e0.90 -l0 -n4 $dev0 $dev1 $dev2 $dev3
-check raid0
-testdev $md0 4 $mdsize0 512
-mdadm -S $md0
+check opposite_result
 
 # now with no superblock
 mdadm -B $md0 -l0 -n5 $dev0 $dev1 $dev2 $dev3 $dev4
@@ -22,8 +20,8 @@ mdadm -S $md0
 # now same again with different chunk size
 for chunk in 4 32 256
 do
-  mdadm -CR $md0 -e0.90 -l raid0 --chunk $chunk -n3 $dev0 $dev1 $dev2
-  check raid0
+  mdadm -CR $md0 -e0.90 -l linear --chunk $chunk -n3 $dev0 $dev1 $dev2
+  check linear
   testdev $md0 3 $mdsize0 $chunk
   mdadm -S $md0
 

tests/00readonly

@@ -4,10 +4,15 @@ for metadata in 0.9 1.0 1.1 1.2
 do
 	for level in linear raid0 raid1 raid4 raid5 raid6 raid10
 	do
+		if [[ $metadata == "0.9" && $level == "raid0" ]];
+		then
+			continue
+		fi
 		mdadm -CR $md0 -l $level -n 4 --metadata=$metadata \
 			$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)

tests/01r5integ.broken

@@ -0,0 +1,7 @@
+fails rarely
+
+Fails about 1 in every 30 runs with a sha mismatch error:
+
+    c49ab26e1b01def7874af9b8a6d6d0c29fdfafe6 /dev/md0 does not match
+    15dc2f73262f811ada53c65e505ceec9cf025cb9 /dev/md0 with /dev/loop3
+    missing

tests/01raid6integ.broken

@@ -0,0 +1,7 @@
+fails infrequently
+
+Fails about 1 in 5 with a sha mismatch:
+
+    8286c2bc045ae2cfe9f8b7ae3a898fa25db6926f /dev/md0 does not match
+    a083a0738b58caab37fd568b91b177035ded37df /dev/md0 with /dev/loop2 and
+    /dev/loop3 missing

tests/02lineargrow

@@ -20,4 +20,6 @@ do
   testdev $md0 3 $sz 1
 
   mdadm -S $md0
+  mdadm --zero /dev/loop2
+  mdadm --zero /dev/loop3
 done

tests/03r0assem

@@ -68,9 +68,9 @@ mdadm -S $md2
 ### Now for version 0...
 
 mdadm --zero-superblock $dev0 $dev1 $dev2
-mdadm -CR $md2 -l0 --metadata=0.90 -n3 $dev0 $dev1 $dev2
-check raid0
-tst="testdev $md2 3 $mdsize0 512"
+mdadm -CR $md2 -llinear --metadata=0.90 -n3 $dev0 $dev1 $dev2
+check linear
+tst="testdev $md2 3 $mdsize0 1"
 $tst
 
 uuid=`mdadm -Db $md2 | sed 's/.*UUID=//'`

tests/04r0update

@@ -1,7 +1,7 @@
 
 # create a raid0, re-assemble with a different super-minor
-mdadm -CR -e 0.90 $md0 -l0 -n3 $dev0 $dev1 $dev2
-testdev $md0 3 $mdsize0 512
+mdadm -CR -e 0.90 $md0 -llinear -n3 $dev0 $dev1 $dev2
+testdev $md0 3 $mdsize0 1
 minor1=`mdadm -E $dev0 | sed -n -e 's/.*Preferred Minor : //p'`
 mdadm -S /dev/md0
 

tests/04r5swap.broken

@@ -0,0 +1,7 @@
+always fails
+
+Fails with errors:
+
+  mdadm: /dev/loop0 has no superblock - assembly aborted
+
+   ERROR: no recovery happening

tests/04update-metadata

@@ -8,10 +8,14 @@ set -xe
 
 dlist="$dev0 $dev1 $dev2 $dev3"
 
-for ls in raid0/4 linear/4 raid1/1 raid5/3 raid6/2
+for ls in linear/4 raid1/1 raid5/3 raid6/2
 do
   s=${ls#*/} l=${ls%/*}
-  mdadm -CR --assume-clean -e 0.90 $md0 --level $l -n 4 -c 64 $dlist
+  if [[ $l == 'raid1' ]]; then
+	mdadm -CR --assume-clean -e 0.90 $md0 --level $l -n 4 $dlist
+  else
+	mdadm -CR --assume-clean -e 0.90 $md0 --level $l -n 4 -c 64 $dlist
+  fi
   testdev $md0 $s 19904 64
   mdadm -S $md0
   mdadm -A $md0 --update=metadata $dlist

tests/07autoassemble.broken

@@ -0,0 +1,8 @@
+always fails
+
+Prints lots of messages, but the array doesn't assemble. Error
+possibly related to:
+
+  mdadm: /dev/md/1 is busy - skipping
+  mdadm: no recogniseable superblock on /dev/md/testing:0
+  mdadm: /dev/md/2 is busy - skipping

tests/07autodetect.broken

@@ -0,0 +1,5 @@
+always fails
+
+Fails with error:
+
+    ERROR: no resync happening

tests/07changelevelintr.broken

@@ -0,0 +1,9 @@
+always fails
+
+Fails with errors:
+
+  mdadm: this change will reduce the size of the array.
+         use --grow --array-size first to truncate array.
+         e.g. mdadm --grow /dev/md0 --array-size 56832
+
+  ERROR: no reshape happening

tests/07changelevels.broken

@@ -0,0 +1,9 @@
+always fails
+
+Fails with errors:
+
+    mdadm: /dev/loop0 is smaller than given size. 18976K < 19968K + metadata
+    mdadm: /dev/loop1 is smaller than given size. 18976K < 19968K + metadata
+    mdadm: /dev/loop2 is smaller than given size. 18976K < 19968K + metadata
+
+    ERROR: /dev/md0 isn't a block device.

tests/07reshape5intr.broken

@@ -0,0 +1,45 @@
+always fails
+
+This patch, recently added to md-next causes the test to always fail:
+
+7e6ba434cc60 ("md: don't unregister sync_thread with reconfig_mutex
+held")
+
+The new error is simply:
+
+   ERROR: no reshape happening
+
+Before the patch, the error seen is below.
+
+--
+
+fails infrequently
+
+Fails roughly 1 in 4 runs with errors:
+
+    mdadm: Merging with already-assembled /dev/md/0
+    mdadm: cannot re-read metadata from /dev/loop6 - aborting
+
+    ERROR: no reshape happening
+
+Also have seen a random deadlock:
+
+     INFO: task mdadm:109702 blocked for more than 30 seconds.
+           Not tainted 5.18.0-rc3-eid-vmlocalyes-dbg-00095-g3c2b5427979d #2040
+     "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
+     task:mdadm           state:D stack:    0 pid:109702 ppid:     1 flags:0x00004000
+     Call Trace:
+      <TASK>
+      __schedule+0x67e/0x13b0
+      schedule+0x82/0x110
+      mddev_suspend+0x2e1/0x330
+      suspend_lo_store+0xbd/0x140
+      md_attr_store+0xcb/0x130
+      sysfs_kf_write+0x89/0xb0
+      kernfs_fop_write_iter+0x202/0x2c0
+      new_sync_write+0x222/0x330
+      vfs_write+0x3bc/0x4d0
+      ksys_write+0xd9/0x180
+      __x64_sys_write+0x43/0x50
+      do_syscall_64+0x3b/0x90
+      entry_SYSCALL_64_after_hwframe+0x44/0xae

tests/07revert-grow.broken

@@ -0,0 +1,31 @@
+always fails
+
+This patch, recently added to md-next causes the test to always fail:
+
+7e6ba434cc60 ("md: don't unregister sync_thread with reconfig_mutex held")
+
+The errors are:
+
+    mdadm: No active reshape to revert on /dev/loop0
+    ERROR: active raid5 not found
+
+Before the patch, the error seen is below.
+
+--
+
+fails rarely
+
+Fails about 1 in every 30 runs with errors:
+
+    mdadm: Merging with already-assembled /dev/md/0
+    mdadm: backup file /tmp/md-backup inaccessible: No such file or directory
+    mdadm: failed to add /dev/loop1 to /dev/md/0: Invalid argument
+    mdadm: failed to add /dev/loop2 to /dev/md/0: Invalid argument
+    mdadm: failed to add /dev/loop3 to /dev/md/0: Invalid argument
+    mdadm: failed to add /dev/loop0 to /dev/md/0: Invalid argument
+    mdadm: /dev/md/0 assembled from 1 drive - need all 5 to start it
+            (use --run to insist).
+
+    grep: /sys/block/md*/md/sync_action: No such file or directory
+
+    ERROR: active raid5 not found

tests/07revert-shrink.broken

@@ -0,0 +1,9 @@
+always fails
+
+Fails with errors:
+
+    mdadm: this change will reduce the size of the array.
+           use --grow --array-size first to truncate array.
+           e.g. mdadm --grow /dev/md0 --array-size 53760
+
+    ERROR: active raid5 not found

tests/07testreshape5.broken

@@ -0,0 +1,12 @@
+always fails
+
+Test seems to run 'test_stripe' at $dir directory, but $dir is never
+set. If $dir is adjusted to $PWD, the test still fails with:
+
+    mdadm: /dev/loop2 is not suitable for this array.
+    mdadm: create aborted
+    ++ return 1
+    ++ cmp -s -n 8192 /dev/md0 /tmp/RandFile
+    ++ echo cmp failed
+    cmp failed
+    ++ exit 2

tests/09imsm-assemble.broken

@@ -0,0 +1,6 @@
+fails infrequently
+
+Fails roughly 1 in 10 runs with errors:
+
+    mdadm: /dev/loop2 is still in use, cannot remove.
+    /dev/loop2 removal from /dev/md/container should have succeeded

tests/09imsm-create-fail-rebuild.broken

@@ -0,0 +1,5 @@
+always fails
+
+Fails with error:
+
+    **Error**: Array size mismatch - expected 3072, actual 16384

tests/09imsm-overlap

@@ -1,28 +0,0 @@
-
-. tests/env-imsm-template
-
-# create raid arrays with varying degress of overlap
-mdadm -CR $container -e imsm -n 6 $dev0 $dev1 $dev2 $dev3 $dev4 $dev5
-imsm_check container 6
-
-size=1024
-level=1
-num_disks=2
-mdadm -CR $member0 $dev0 $dev1 -n $num_disks -l $level -z $size
-mdadm -CR $member1 $dev1 $dev2 -n $num_disks -l $level -z $size
-mdadm -CR $member2 $dev2 $dev3 -n $num_disks -l $level -z $size
-mdadm -CR $member3 $dev3 $dev4 -n $num_disks -l $level -z $size
-mdadm -CR $member4 $dev4 $dev5 -n $num_disks -l $level -z $size
-
-udevadm settle
-
-offset=0
-imsm_check member $member0 $num_disks $level $size 1024 $offset
-offset=$((offset+size+4096))
-imsm_check member $member1 $num_disks $level $size 1024 $offset
-offset=$((offset+size+4096))
-imsm_check member $member2 $num_disks $level $size 1024 $offset
-offset=$((offset+size+4096))
-imsm_check member $member3 $num_disks $level $size 1024 $offset
-offset=$((offset+size+4096))
-imsm_check member $member4 $num_disks $level $size 1024 $offset

tests/09imsm-overlap.broken

@@ -0,0 +1,7 @@
+always fails
+
+Fails with errors:
+
+    **Error**: Offset mismatch - expected 15360, actual 0
+    **Error**: Offset mismatch - expected 15360, actual 0
+    /dev/md/vol3 failed check

tests/10ddf-assemble-missing.broken

@@ -0,0 +1,6 @@
+always fails
+
+Fails with errors:
+
+    ERROR: /dev/md/vol0 has unexpected state on /dev/loop10
+    ERROR: unexpected number of online disks on /dev/loop10

tests/10ddf-fail-create-race.broken

@@ -0,0 +1,7 @@
+usually fails
+
+Fails about 9 out of 10 times with many errors:
+
+    mdadm: cannot open MISSING: No such file or directory
+    ERROR: non-degraded array found
+    ERROR: disk 0 not marked as failed in meta data

tests/10ddf-fail-two-spares.broken

@@ -0,0 +1,5 @@
+fails infrequently
+
+Fails roughly 1 in 3 with error:
+
+   ERROR: /dev/md/vol1 should be optimal in meta data

tests/10ddf-incremental-wrong-order.broken

@@ -0,0 +1,9 @@
+always fails
+
+Fails with errors:
+    ERROR: sha1sum of /dev/md/vol0 has changed
+    ERROR: /dev/md/vol0 has unexpected state on /dev/loop10
+    ERROR: unexpected number of online disks on /dev/loop10
+    ERROR: /dev/md/vol0 has unexpected state on /dev/loop8
+    ERROR: unexpected number of online disks on /dev/loop8
+    ERROR: sha1sum of /dev/md/vol0 has changed

tests/14imsm-r1_2d-grow-r1_3d.broken

@@ -0,0 +1,5 @@
+always fails
+
+Fails with error:
+
+    mdadm/tests/func.sh: line 325: dvsize/chunk: division by 0 (error token is "chunk")

tests/14imsm-r1_2d-takeover-r0_2d.broken

@@ -0,0 +1,6 @@
+always fails
+
+Fails with error:
+
+    tests/func.sh: line 325: dvsize/chunk: division by 0 (error token
+		is "chunk")

tests/18imsm-r10_4d-takeover-r0_2d.broken

@@ -0,0 +1,5 @@
+fails rarely
+
+Fails about 1 run in 100 with message:
+
+   ERROR:  size is wrong for /dev/md/vol0: 2 * 5120 (chunk=128) = 20480, not 0

tests/18imsm-r1_2d-takeover-r0_1d.broken

@@ -0,0 +1,6 @@
+always fails
+
+Fails with error:
+
+    tests/func.sh: line 325: dvsize/chunk: division by 0 (error token
+			is "chunk")

tests/19raid6auto-repair.broken

@@ -0,0 +1,5 @@
+always fails
+
+Fails with:
+
+    "should detect errors"

tests/19raid6repair.broken

@@ -0,0 +1,5 @@
+always fails
+
+Fails with:
+
+    "should detect errors"