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id = 2904
title = "Data Race in data->cb() call and cb assignment in test-aio-multithread"
state = "opened"
created_at = "2025-04-01T14:39:13.220Z"
closed_at = "n/a"
labels = ["Storage"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2904"
host-os = "Ubuntu Linux"
host-arch = "n/a"
qemu-version = "n/a"
guest-os = "n/a"
guest-arch = "n/a"
description = """Potential data races between the `data->cb()` call and the assignment of `cb` in `test-aio-multithread` were identified using TSAN."""
reproduce = """```sh
QEMU_BUILD_DIR=<path to the QEMU build directory>
QEMU_DIR=<path to the QEMU repository directory>
configure --enable-tsan --cc=clang --cxx=clang++ --enable-trace-backends=ust --enable-fdt=system --disable-slirp
make tests/unit/test-bdrv-drain
MALLOC_PERTURB_=102 G_TEST_SRCDIR=$QEMU_BUILD_DIR/tests/unit G_TEST_BUILDDIR=$QEMU_BUILD_DIR/tests/unit $QEMU_BUILD_DIR/tests/unit/test-aio-multithread --tap -k
```"""
additional = "n/a"
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