test: make TEST-64 a bit more ASan friendly

Reduce the number of iterations in some of the test cases, since they
generate a huge amount of uevents and basically DoS udev (which can't
keep up while being slowed down by ASan). To avoid this, let's reduce
the number of iterations and bump the timeout when running under ASan,
since we're not interested in performance in such cases.

diff --git a/test/units/testsuite-64.sh b/test/units/testsuite-64.sh
index cabbad2db5c2ba9c1536adf8c97b9192a7b812f8..3d0995b2f2ded7039db1ac574db50f8911e09ea3 100755 (executable)
--- a/test/units/testsuite-64.sh
+++ b/test/units/testsuite-64.sh
@@ -153,7 +153,7 @@ EOF
 }
 
 testcase_simultaneous_events() {
-    local blockdev part partscript
+    local blockdev iterations part partscript timeout
 
     blockdev="$(readlink -f /dev/disk/by-id/scsi-*_deadbeeftest)"
     partscript="$(mktemp)"
@@ -176,12 +176,19 @@ EOF
     #
     # On unpatched udev versions the delete-recreate cycle may trigger a race
     # leading to dead symlinks in /dev/disk/
-    for i in {1..100}; do
+    iterations=100
+    timeout=30
+    if [[ -n "${ASAN_OPTIONS:-}" ]]; then
+        iterations=10
+        timeout=180
+    fi
+
+    for ((i = 1; i <= iterations; i++)); do
         udevadm lock --device="$blockdev" sfdisk -q --delete "$blockdev"
         udevadm lock --device="$blockdev" sfdisk -q -X gpt "$blockdev" <"$partscript"
 
         if ((i % 10 == 0)); then
-            udevadm wait --settle --timeout=30 "$blockdev"
+            udevadm wait --settle --timeout="$timeout" "$blockdev"
             helper_check_device_symlinks
         fi
     done
@@ -190,12 +197,13 @@ EOF
 }
 
 testcase_lvm_basic() {
-    local i part
+    local i iterations part timeout
     local vgroup="MyTestGroup$RANDOM"
     local devices=(
         /dev/disk/by-id/ata-foobar_deadbeeflvm{0..3}
     )
 
+    [[ -n "${ASAN_OPTIONS:-}" ]] && timeout=180 || timeout=30
     # Make sure all the necessary soon-to-be-LVM devices exist
     ls -l "${devices[@]}"
 
@@ -209,42 +217,44 @@ testcase_lvm_basic() {
     lvm lvcreate -y -L 4M "$vgroup" -n mypart1
     lvm lvcreate -y -L 8M "$vgroup" -n mypart2
     lvm lvs
-    udevadm wait --settle --timeout=30 "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
+    udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2"
     mkfs.ext4 -L mylvpart1 "/dev/$vgroup/mypart1"
-    udevadm wait --settle --timeout=30 "/dev/disk/by-label/mylvpart1"
+    udevadm wait --settle --timeout="$timeout" "/dev/disk/by-label/mylvpart1"
     helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
 
     # Disable the VG and check symlinks...
     lvm vgchange -an "$vgroup"
-    udevadm wait --settle --timeout=30 --removed "/dev/$vgroup" "/dev/disk/by-label/mylvpart1"
+    udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup" "/dev/disk/by-label/mylvpart1"
     helper_check_device_symlinks "/dev/disk"
 
     # reenable the VG and check the symlinks again if all LVs are properly activated
     lvm vgchange -ay "$vgroup"
-    udevadm wait --settle --timeout=30 "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
+    udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
     helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
 
     # Same as above, but now with more "stress"
-    for i in {1..50}; do
+    [[ -n "${ASAN_OPTIONS:-}" ]] && iterations=10 || iterations=50
+    for ((i = 1; i <= iterations; i++)); do
         lvm vgchange -an "$vgroup"
         lvm vgchange -ay "$vgroup"
 
         if ((i % 5 == 0)); then
-            udevadm wait --settle --timeout=30 "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
+            udevadm wait --settle --timeout="$timeout" "/dev/$vgroup/mypart1" "/dev/$vgroup/mypart2" "/dev/disk/by-label/mylvpart1"
             helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
         fi
     done
 
     # Remove the first LV
     lvm lvremove -y "$vgroup/mypart1"
-    udevadm wait --settle --timeout=30 --removed "/dev/$vgroup/mypart1"
+    udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup/mypart1"
     udevadm wait --timeout=0 "/dev/$vgroup/mypart2"
     helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
 
     # Create & remove LVs in a loop, i.e. with more "stress"
-    for i in {1..16}; do
+    [[ -n "${ASAN_OPTIONS:-}" ]] && iterations=8 || iterations=16
+    for ((i = 1; i <= iterations; i++)); do
         # 1) Create 16 logical volumes
-        for part in {0..15}; do
+        for ((part = 0; part < 16; part++)); do
             lvm lvcreate -y -L 4M "$vgroup" -n "looppart$part"
         done
 
@@ -254,8 +264,8 @@ testcase_lvm_basic() {
         # 3) On every 4th iteration settle udev and check if all partitions are
         #    indeed gone, and if all symlinks are still valid
         if ((i % 4 == 0)); then
-            for part in {0..15}; do
-                udevadm wait --settle --timeout=30 --removed "/dev/$vgroup/looppart$part"
+            for ((part = 0; part < 16; part++)); do
+                udevadm wait --settle --timeout="$timeout" --removed "/dev/$vgroup/looppart$part"
             done
             helper_check_device_symlinks "/dev/disk" "/dev/$vgroup"
         fi