1 files changed, 63 insertions, 0 deletions

diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/1687.toml b/gitlab/issues/target_missing/host_missing/accel_missing/1687.toml
new file mode 100644
index 00000000..adaaa8a7
--- /dev/null
+++ b/gitlab/issues/target_missing/host_missing/accel_missing/1687.toml
@@ -0,0 +1,63 @@
+id = 1687
+title = "Memory leak for x86 guest on macOS ARM host"
+state = "opened"
+created_at = "2023-06-05T19:27:51.499Z"
+closed_at = "n/a"
+labels = []
+url = "https://gitlab.com/qemu-project/qemu/-/issues/1687"
+host-os = "macOS Darwin"
+host-arch = "ARM"
+qemu-version = "n/a"
+guest-os = "Ubuntu 22.04"
+guest-arch = "x86"
+description = """QEMU is used by docker to run `x86` binaries on Apple silicon. Then using `mmap` followed by `munmap` results in a memory leak manifested by continuously growing RSS memory usage when running `mmap` and `munmap` in a loop, e.g., when running the following binary:
+
+```
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+const int page = 4096;
+
+int work(int N) {
+  int *ptr = mmap(NULL, N * sizeof(int), PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+
+  if (ptr == MAP_FAILED) {
+    printf("Mapping Failed\\n");
+    return 1;
+  }
+
+  for(int i = 0; i < N; i++) {
+    ptr[i] = i * 10;
+  }
+
+  int err = munmap(ptr, N * sizeof(int));
+  if (err != 0) {
+    printf("UnMapping Failed\\n");
+    return 1;
+  }
+
+  return 0;
+}
+
+int main() {
+  int N = page * 1024;
+
+  while (1) {
+    int res = work(N);
+    if (res) {
+      return res;
+    }
+    printf(".\\n");
+  }
+
+  return 0;
+}
+```"""
+reproduce = """```
+$ LEAK=$(docker run --platform linux/amd64 -d -it martin2718/mmap-leak ./a.out)
+$ docker exec -it $LEAK top        # you should observe that RES for a.out keeps growing
+$ docker exec -it $LEAK pmap -x 1  # you should see a single memory mapping whose RSS memory usage keeps growing
+$ docker kill $LEAK                # abort the experiment
+```"""
+additional = "n/a"