ltp: Disable problematic tests causing autobuilder hangs

We've seen three hangs in cgroup_xattr and two in proc01 so far. The new
plan is just to disable any tests seen to hang. I've had enough of these
causing problems on our testing infrastructure.

(From OE-Core rev: 0cc8d4e27e5d3024e35ad877622f32f9bb4819a4)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/ltp/ltp/disable_hanging_tests.patch

@@ -0,0 +1,45 @@
+This patch disables tests which we've found "hang" on our infrastructure.
+
+cgroup_xattr:
+https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1926 (x86)
+https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1898 (x86)
+https://autobuilder.yoctoproject.org/typhoon/#/builders/95/builds/1916 (x86)
+
+proc01:
+https://autobuilder.yoctoproject.org/typhoon/#/builders/96/builds/1748 (arm)
+https://autobuilder.yoctoproject.org/typhoon/#/builders/96/builds/1781 (arm)
+(in the latter was trying to read /proc/kmsg)
+(the above test looks horrible anyway)
+
+Upstream-Status: Inappropriate [OE Configuration]
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Index: git/runtest/controllers
+===================================================================
+--- git.orig/runtest/controllers
++++ git/runtest/controllers
+@@ -352,8 +352,6 @@ cpuset_memory_spread	cpuset_memory_sprea
+ 
+ cpuset_regression_test cpuset_regression_test.sh
+ 
+-cgroup_xattr	cgroup_xattr
+-
+ pids_1_1 pids.sh 1 1 0
+ pids_1_2 pids.sh 1 2 0
+ pids_1_10 pids.sh 1 10 0
+Index: git/runtest/fs
+===================================================================
+--- git.orig/runtest/fs
++++ git/runtest/fs
+@@ -64,11 +64,6 @@ writetest01	writetest
+ #Also run the fs_di (Data Integrity tests)
+ fs_di fs_di -d $TMPDIR
+ 
+-# Read every file in /proc. Not likely to crash, but does enough
+-# to disturb the kernel. A good kernel latency killer too.
+-# Was not sure why it should reside in runtest/crashme and won't get tested ever
+-proc01 proc01 -m 128
+-
+ read_all_dev read_all -d /dev -p -q -r 3
+ read_all_proc read_all -d /proc -q -r 3
+ read_all_sys read_all -d /sys -q -r 3

meta/recipes-extended/ltp/ltp_20210121.bb

@@ -40,6 +40,7 @@ SRC_URI = "git://github.com/linux-test-project/ltp.git \
            file://0001-open_posix_testsuite-generate-makefiles.sh-Avoid-inc.patch \
            file://0002-Makefile-Avoid-wildcard-determinism-issues.patch \
            file://0003-syscalls-swapon-swapoff-Move-common-library-to-libs.patch \
+           file://disable_hanging_tests.patch \
            "
 
 S = "${WORKDIR}/git"