Add retry mechanism after deadlock timeout for c910v.

.github/workflows/c910v.yml

@@ -83,9 +83,39 @@ jobs:
 
       - name: test
         run: |
-          export PATH=$GITHUB_WORKSPACE/qemu-install/bin/:$PATH
-          qemu-riscv64 ./utest/openblas_utest
-          qemu-riscv64 ./utest/openblas_utest_ext
+          run_with_retry() {
+              local cmd="$1"
+              local time_out=10
+              local retries=10
+              local attempt=0
+
+              for ((i=1; i<=retries; i++)); do
+                  attempt=$((i))
+                  if timeout -s 12  --preserve-status $time_out $cmd; then
+                      echo "Command succeeded on attempt $i."
+                      return 0
+                  else
+                      local exit_code=$?
+                      if [ $exit_code -eq 140 ]; then
+                          echo "Attempt $i timed out (retrying...)"
+                          time_out=$((time_out + 5))
+                      else
+                          echo "Attempt $i failed with exit code $exit_code. Aborting workflow."
+                          exit $exit_code
+                      fi
+                  fi
+              done
+              echo "All $retries attempts failed, giving up."
+              echo "Final failure was due to timeout."
+              echo "Aborting workflow."
+              exit $exit_code
+          }
+          export PATH=$GITHUB_WORKSPACE/qemu-install/bin:$PATH
+          which qemu-riscv64
+          export QEMU_BIN=$(which qemu-riscv64)
+          run_with_retry "$QEMU_BIN ./utest/openblas_utest"
+          run_with_retry "$QEMU_BIN ./utest/openblas_utest_ext"
+
           OPENBLAS_NUM_THREADS=2 qemu-riscv64 ./ctest/xscblat1
           OPENBLAS_NUM_THREADS=2 qemu-riscv64 ./ctest/xdcblat1
           OPENBLAS_NUM_THREADS=2 qemu-riscv64 ./ctest/xccblat1