[Pacemaker] crm ra classes hung if we use UPDU transport

[ruslan usifov]

Hello

It not so terrible, but...

When we use UDPU transport in corosync,if call crm ra  classes, it wiil
hung, and no any suspicious  entries in log. as i understand the realy hung
lrmadmin with the follow trace

brk(0)                                  = 0x9b91000
brk(0x9bb2000)                          = 0x9bb2000
gettimeofday({1331550574, 77275}, NULL) = 0
socket(PF_FILE, SOCK_STREAM, 0)         = 3
fcntl64(3, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
connect(3, {sa_family=AF_FILE, path="/var/run/heartbeat/lrm_cmd_sock"},
110) = 0
getsockopt(3, SOL_SOCKET, SO_PEERCRED, "\243\10\0\0\0\0\0\0\0\0\0\0", [12])
= 0
getegid32()                             = 0
getuid32()                              = 0
recv(3, 0x9b92bc8, 4072, MSG_DONTWAIT)  = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=0}], 1, 0)          = 0 (Timeout)
recv(3, 0x9b92bc8, 4072, MSG_DONTWAIT)  = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=0}], 1, 0)          = 0 (Timeout)
send(3, "E\0\0\0\315\253\0\0>>>\nlrm_t=reg\nlrm_app=lr"..., 77,
MSG_DONTWAIT|MSG_NOSIGNAL) = 77
recv(3, 0x9b92bc8, 4072, MSG_DONTWAIT)  = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=0}], 1, 0)          = 0 (Timeout)
recv(3, 0x9b92bc8, 4072, MSG_DONTWAIT)  = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=0}], 1, 0)          = 0 (Timeout)
recv(3, 0x9b92bc8, 4072, MSG_DONTWAIT)  = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=0}], 1, 0)          = 0 (Timeout)
recv(3, 0x9b92bc8, 4072, MSG_DONTWAIT)  = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=3, events=0}], 1, 0)          = 0 (Timeout)
poll([{fd=3, events=POLLIN}], 1, -1^C <unfinished ...>
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