GU_AVPHYS_SIZE can report more available memory than can be addressed on 32-bit systems

lp:1181347 is regressing on centos6-32

http://jenkins.percona.com/job/percona-xtrabackup-2.1-param/393/BUILD_TYPE=release,Host=centos6-32,xtrabackuptarget=galera55/testReport/junit/(root)/t_xb_galera_sst/sh/

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130723 15:14:13 [Note] WSREP: Some threads may fail to exit.
130723 15:14:13 [Note] WSREP: Setting wsrep_ready to 0
130723 15:14:13 [Note] WSREP: Read nil XID from storage engines, skipping position init
130723 15:14:13 [Note] WSREP: wsrep_load(): loading provider library '/home/jenkins/workspace/percona-xtrabackup-2.1-param/BUILD_TYPE/release/Host/centos6-32/xtrabackuptarget/galera55/test/server/lib/libgalera_smm.so'
130723 15:14:13 [Note] WSREP: wsrep_load(): Galera 2.6(r152) by Codership Oy <email address hidden> loaded succesfully.
130723 15:14:13 [Warning] WSREP: Could not open saved state file for reading: /home/jenkins/workspace/percona-xtrabackup-2.1-param/BUILD_TYPE/release/Host/centos6-32/xtrabackuptarget/galera55/test/var/w9/var1/data//grastate.dat
130723 15:14:13 [Note] WSREP: Found saved state: 00000000-0000-0000-0000-000000000000:-1
130723 15:14:13 [Note] WSREP: Preallocating 134219040/134219040 bytes in '/home/jenkins/workspace/percona-xtrabackup-2.1-param/BUILD_TYPE/release/Host/centos6-32/xtrabackuptarget/galera55/test/var/w9/var1/data//galera.cache'...
130723 15:14:13 [ERROR] WSREP: galerautils/src/gu_fifo.c:gu_fifo_create():102: Maximum FIFO size 9663938748 exceeds size_t range 4294967295
130723 15:14:13 [ERROR] WSREP: gcs/src/gcs.c:gcs_create():264: Failed to create recv_q.
130723 15:14:13 [ERROR] WSREP: gcs/src/gcs.c:gcs_create():310: Failed to create GCS connection handle.
130723 15:14:13 [Note] WSREP: Passing config to GCS: base_host = 127.0.0.1; base_port = 4567; cert.log_conflicts = no; debug = 1; gcache.dir = /home/jenkins/workspace/percona-xtrabackup-2.1-param/BUILD_TYPE/release/Host/centos6-32/xtrabackuptarget/galera55/test/var/w9/var1/data/; gcache.keep_pages_size = 0; gcache.mem_size = 0; gcache.name = /home/jenkins/workspace/percona-xtrabackup-2.1-param/BUILD_TYPE/release/Host/centos6-32/xtrabackuptarget/galera55/test/var/w9/var1/data//galera.cache; gcache.page_size = 128M; gcache.size = 128M; gcs.fc_debug = 0; gcs.fc_factor = 1; gcs.fc_limit = 16; gcs.fc_master_slave = NO; gcs.max_packet_size = 64500; gcs.max_throttle = 0.25; gcs.recv_q_hard_limit = 2147483647; gcs.recv_q_soft_limit = 0.25; gcs.sync_donor = NO; gmcast.listen_addr = tcp://127.0.0.1:31241; replicator.causal_read_timeout = PT30S; replicator.commit_order = 3
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Note, that wsrep-debug=1 and debug=1 in wsrep_provider_options as requested.