The frame can currently be reset from ws2_32.dll async IO callbacks
which are still in the user part and are calling 'syscall' functions.
If the user APC is processed after that during the same call to
server_select(), the call_user_apc_dispatcher() faults.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49782Signed-off-by: Paul Gofman <pgofman@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>