libsdl2 currently does not handle the failures that
occur due to shared memory in case of remote hosts
where it should ideally switch to socket based writing
when a failure is seen with shared memory.
Consider a scenario where a qemu build is done with
graphics support on a build machine and then accessed
remotely using ssh. If the remote host's X presents
MIT-SHM as an extension, launching qemu fails with
runqemu - ERROR - Failed to run qemu: X Error: BadValue
Request Major code 130 (MIT-SHM)
Request Minor code 3 ()
This is most often seen when the remote machine doing
ssh is a Ubuntu 20.04. The libsdl2 native are mainly
used for qemu at this time so it is a major usecase.
A report of such a failure was also presented at
https://lists.yoctoproject.org/g/poky/topic/78854857
(From OE-Core rev: d12306a6331238a25db52816ad74a775c026d7da)
Signed-off-by: Awais Belal <awais_belal@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
bd72322c2a