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This qtest executable created a serial chardev file to be passed to the QEMU executable. The serial file was created by g_file_open_tmp(), which internally opens the file with FILE_SHARE_WRITE security attribute on Windows. Based on [1], there is only one case that allows the first call to CreateFile() with GENERIC_READ & FILE_SHARE_WRITE, and second call to CreateFile() with GENERIC_WRITE & FILE_SHARE_READ. All other combinations require FILE_SHARE_WRITE in the second call. But there is no way for the second call (in this case the QEMU executable) to know what combination was passed to the first call, unless FILE_SHARE_WRITE is passed to the second call. Two processes shouldn't share the same file for writing with a chardev. Let's close the serial file before starting QEMU. [1] https://docs.microsoft.com/en-us/windows/win32/fileio/creating-and-opening-files Signed-off-by: Bin Meng <bin.meng@windriver.com> Message-Id: <20220927110632.1973965-40-bmeng.cn@gmail.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com> |
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| .. | ||
| avocado | ||
| bench | ||
| data | ||
| decode | ||
| docker | ||
| fp | ||
| guest-debug | ||
| image-fuzzer | ||
| include | ||
| keys | ||
| lcitool | ||
| migration | ||
| multiboot | ||
| perf/block/qcow2 | ||
| plugin | ||
| qapi-schema | ||
| qemu-iotests | ||
| qtest | ||
| rocker | ||
| tcg | ||
| tsan | ||
| uefi-test-tools | ||
| unit | ||
| vm | ||
| vmstate-static-checker-data | ||
| check-block.sh | ||
| dbus-vmstate-daemon.sh | ||
| Makefile.include | ||
| meson.build | ||
| requirements.txt | ||
| test-qht-par.c | ||
| vhost-user-bridge.c | ||