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The commit in the fixes line mistakenly modified the channels and transport compatibility check logic so it now checks multi-channel support only for socket transport type. Thus, running multifd migration using a transport other than socket that is incompatible with multi-channels (such as "exec") would lead to a segmentation fault instead of an error message. For example: (qemu) migrate_set_capability multifd on (qemu) migrate -d "exec:cat > /tmp/vm_state" Segmentation fault (core dumped) Fix it by checking multi-channel compatibility for all transport types. Cc: qemu-stable <qemu-stable@nongnu.org> Fixes:d95533e1cd("migration: modify migration_channels_and_uri_compatible() for new QAPI syntax") Signed-off-by: Avihai Horon <avihaih@nvidia.com> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/r/20240125162528.7552-2-avihaih@nvidia.com Signed-off-by: Peter Xu <peterx@redhat.com> (cherry picked from commit3205bebd4f) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>