feat: add cuda core dump CI warpper (#18909)

.github/workflows/pr-test.yml

@@ -63,6 +63,7 @@ concurrency:
 
 env:
   SGLANG_IS_IN_CI: true
+  SGLANG_CUDA_COREDUMP: "1"
   SGLANG_JIT_DEEPGEMM_FAST_WARMUP: true
 
 permissions:
@@ -874,6 +875,9 @@ jobs:
           # temporarily put backend-independent cpu tests here
           python3 run_suite.py --hw cpu --suite default $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+
   stage-a-cpu-only:
     needs: [check-changes, call-gate]
     if: |
@@ -976,6 +980,11 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-b-test-small-1-gpu --auto-partition-id ${{ matrix.partition }} --auto-partition-size 8 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.partition }}
+
   # Runs on H100 (80GB, SM90) - tests that don't pass on 5090 (FA3, FP8, high VRAM, etc.)
   stage-b-test-large-1-gpu:
     needs: [check-changes, call-gate, wait-for-stage-a, sgl-kernel-build-wheels]
@@ -1027,6 +1036,11 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-b-test-large-1-gpu --auto-partition-id ${{ matrix.partition }} --auto-partition-size 14 --timeout-per-file 1800 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.partition }}
+
   stage-b-test-large-2-gpu:
     needs: [check-changes, call-gate, wait-for-stage-a, sgl-kernel-build-wheels]
     if: |
@@ -1079,6 +1093,11 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-b-test-large-2-gpu --auto-partition-id ${{ matrix.partition }} --auto-partition-size 4 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.partition }}
+
   stage-b-test-4-gpu-b200:
     needs: [check-changes, call-gate, wait-for-stage-a, sgl-kernel-build-wheels]
     if: |
@@ -1132,6 +1151,9 @@ jobs:
         run: |
           IS_BLACKWELL=1 python3 -m pytest -q python/sglang/jit_kernel/tests/test_flash_attention_4.py
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+
   multimodal-gen-test-1-gpu:
     needs: [check-changes, call-gate, sgl-kernel-build-wheels]
     if: |
@@ -1184,6 +1206,10 @@ jobs:
             --total-partitions 2 \
             $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.part }}
 
   multimodal-gen-test-2-gpu:
     needs: [check-changes, call-gate, sgl-kernel-build-wheels]
@@ -1238,6 +1264,11 @@ jobs:
             --total-partitions 2 \
             $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.part }}
+
   stage-c-test-4-gpu-h100:
     needs: [check-changes, call-gate, wait-for-stage-b]
     if: |
@@ -1287,6 +1318,11 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-c-test-4-gpu-h100 --auto-partition-id ${{ matrix.part }} --auto-partition-size 3 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.part }}
+
   stage-c-test-8-gpu-h200:
     needs: [check-changes, call-gate, wait-for-stage-b]
     if: |
@@ -1342,6 +1378,11 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-c-test-8-gpu-h200 --auto-partition-id ${{ matrix.part }} --auto-partition-size 4 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.part }}
+
   stage-c-test-8-gpu-h20:
     needs: [check-changes, call-gate, wait-for-stage-b]
     if: |
@@ -1392,6 +1433,11 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-c-test-8-gpu-h20 --auto-partition-id ${{ matrix.part }} --auto-partition-size 2 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.part }}
+
   stage-c-test-deepep-4-gpu:
     needs: [check-changes, call-gate, wait-for-stage-b]
     if: |
@@ -1437,6 +1483,9 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-c-test-deepep-4-gpu $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+
   stage-c-test-deepep-8-gpu-h200:
     needs: [check-changes, call-gate, wait-for-stage-b]
     if: |
@@ -1482,6 +1531,9 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-c-test-deepep-8-gpu-h200 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+
   stage-c-test-4-gpu-b200:
     needs: [check-changes, call-gate, wait-for-stage-b]
     if: |
@@ -1532,6 +1584,11 @@ jobs:
           fi
           IS_BLACKWELL=1 python3 run_suite.py --hw cuda --suite stage-c-test-4-gpu-b200 --auto-partition-id ${{ matrix.part }} --auto-partition-size 3 --timeout-per-file 1800 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+        with:
+          artifact-suffix: ${{ matrix.part }}
+
   stage-c-test-4-gpu-gb200:
     needs: [check-changes, call-gate, wait-for-stage-b, sgl-kernel-build-wheels-arm]
     if: |
@@ -1579,6 +1636,9 @@ jobs:
           fi
           python3 run_suite.py --hw cuda --suite stage-c-test-4-gpu-gb200 --timeout-per-file 3600 $CONTINUE_ON_ERROR_FLAG
 
+      - uses: ./.github/actions/upload-cuda-coredumps
+        if: always()
+
   pr-test-finish:
     needs:
       [