Re: [PATCH v2] migration: Setup pre-listened cpr.sock to remove race-condition.

[Peter Xu]

On Tue, Jun 10, 2025 at 10:08:49AM -0500, Jaehoon Kim wrote:
> When the source VM attempts to connect to the destination VM's Unix
> domain socket (cpr.sock) during a cpr-transfer test, race conditions can
> occur if the socket file isn't ready. This can lead to connection
> failures when running tests.
> 
> This patch creates and listens on the socket in advance, and passes the
> pre-listened FD directly. This avoids timing issues and improves the
> reliability of CPR tests.
> 
> Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
> Signed-off-by: Jaehoon Kim <jhkim@linux.ibm.com>

One quick comment while we can wait for others to look at the details: when
it involves both qemu and tests changes, please consider splitting that
into two patches. The test patch can be prefixed with "tests/migration:".

Thanks,

-- 
Peter Xu