Comment 14 for bug 107093

I tried strace and this time was lucky to catch something.
Before the lockup I have this:

     0.917363 read(3, 0x7fff708d7740, 32) = -1 EAGAIN (Resource temporarily unavailable)
     0.000031 poll( <unfinished ...>

almost 1 sec for a read call which fails ... hmmmmmm
file 3 is a socket which was previously open and connected with:

     0.000128 socket(PF_FILE, SOCK_STREAM, 0) = 3
     .
     .
     .
     0.000130 connect(3, {sa_family=AF_FILE, path="/tmp/.X11-unix/X0"}, 19) = 0

Any of this makes any sense to you?