[v2] ci: catch coredumps

diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh
index d2c821adf3..26c30a2301 100755
--- a/.ci/linux-build.sh
+++ b/.ci/linux-build.sh
@@ -4,7 +4,10 @@  on_error() {
     if [ $? = 0 ]; then
         exit
     fi
-    FILES_TO_PRINT="build/meson-logs/testlog.txt build/.ninja_log build/meson-logs/meson-log.txt"
+    FILES_TO_PRINT="build/meson-logs/testlog.txt"
+    FILES_TO_PRINT="$FILES_TO_PRINT build/.ninja_log"
+    FILES_TO_PRINT="$FILES_TO_PRINT build/meson-logs/meson-log.txt"
+    FILES_TO_PRINT="$FILES_TO_PRINT build/gdb.log"
 
     for pr_file in $FILES_TO_PRINT; do
         if [ -e "$pr_file" ]; then
@@ -30,6 +33,26 @@  install_libabigail() {
     rm ${version}.tar.gz
 }
 
+configure_coredump() {
+    # No point in configuring coredump without gdb
+    which gdb >/dev/null || return 0
+    ulimit -c unlimited
+    sudo sysctl -w kernel.core_pattern=/tmp/dpdk-core.%e.%p
+}
+
+catch_coredump() {
+    ls /tmp/dpdk-core.*.* 2>/dev/null || return 0
+    for core in /tmp/dpdk-core.*.*; do
+        binary=$(sudo readelf -n $core |grep $(pwd)/build/ 2>/dev/null |head -n1)
+        [ -x $binary ] || binary=
+        sudo gdb $binary -c $core \
+            -ex 'info threads' \
+            -ex 'thread apply all bt full' \
+            -ex 'quit'
+    done |tee -a build/gdb.log
+    return 1
+}
+
 if [ "$AARCH64" = "true" ]; then
     # convert the arch specifier
     OPTS="$OPTS --cross-file config/arm/arm64_armv8_linux_gcc"
@@ -57,7 +80,11 @@  meson build --werror $OPTS
 ninja -C build
 
 if [ "$AARCH64" != "true" ]; then
-    devtools/test-null.sh
+    failed=
+    configure_coredump
+    devtools/test-null.sh || failed="true"
+    catch_coredump
+    [ "$failed" != "true" ]
 fi
 
 if [ "$ABI_CHECKS" = "true" ]; then
@@ -102,5 +129,9 @@  if [ "$ABI_CHECKS" = "true" ]; then
 fi
 
 if [ "$RUN_TESTS" = "true" ]; then
-    sudo meson test -C build --suite fast-tests -t 3
+    failed=
+    configure_coredump
+    sudo meson test -C build --suite fast-tests -t 3 || failed="true"
+    catch_coredump
+    [ "$failed" != "true" ]
 fi
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a5b579adda..786525e5a3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -104,6 +104,9 @@  jobs:
       if: env.AARCH64 == 'true'
       run: sudo apt install -y gcc-aarch64-linux-gnu libc6-dev-arm64-cross
         pkg-config-aarch64-linux-gnu
+    - name: Install test tools packages
+      if: env.AARCH64 != 'true' || env.RUN_TESTS == 'true'
+      run: sudo apt install -y gdb
     - name: Install doc generation packages
       if: env.BUILD_DOCS == 'true'
       run: sudo apt install -y doxygen graphviz python3-sphinx
@@ -124,3 +127,4 @@  jobs:
           build/meson-logs/testlog.txt
           build/.ninja_log
           build/meson-logs/meson-log.txt
+          build/gdb.log
diff --git a/app/test/test_debug.c b/app/test/test_debug.c
index 834a7386f5..23b24db177 100644
--- a/app/test/test_debug.c
+++ b/app/test/test_debug.c
@@ -4,6 +4,8 @@ 
 
 #include <stdio.h>
 #include <stdint.h>
+#include <sys/resource.h>
+#include <sys/time.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
@@ -28,9 +30,14 @@  test_panic(void)
 
 	pid = fork();
 
-	if (pid == 0)
+	if (pid == 0) {
+		struct rlimit rl;
+
+		/* No need to generate a coredump when panicking. */
+		rl.rlim_cur = rl.rlim_max = 0;
+		setrlimit(RLIMIT_CORE, &rl);
 		rte_panic("Test Debug\n");
-	else if (pid < 0){
+	} else if (pid < 0) {
 		printf("Fork Failed\n");
 		return -1;
 	}
diff --git a/app/test/test_mbuf.c b/app/test/test_mbuf.c
index a40f7d4883..47a7b197d7 100644
--- a/app/test/test_mbuf.c
+++ b/app/test/test_mbuf.c
@@ -1174,6 +1174,8 @@  test_refcnt_mbuf(void)
 }
 
 #include <unistd.h>
+#include <sys/resource.h>
+#include <sys/time.h>
 #include <sys/wait.h>
 
 /* use fork() to test mbuf errors panic */
@@ -1186,9 +1188,14 @@  verify_mbuf_check_panics(struct rte_mbuf *buf)
 	pid = fork();
 
 	if (pid == 0) {
+		struct rlimit rl;
+
+		/* No need to generate a coredump when panicking. */
+		rl.rlim_cur = rl.rlim_max = 0;
+		setrlimit(RLIMIT_CORE, &rl);
 		rte_mbuf_sanity_check(buf, 1); /* should panic */
 		exit(0);  /* return normally if it doesn't panic */
-	} else if (pid < 0){
+	} else if (pid < 0) {
 		printf("Fork Failed\n");
 		return -1;
 	}