X crash: _lwp_park -1 errno 60 Connection timed out

[Jukka Salmi <j+nbsd%2008.salmi.ch@localhost>]

Hi,

since I updated a i386 system from 4.99.54 to 4.99.55 (and not
rebuilding pkgsrc packages), the X server (XFree86 4.5.0 from the base
system) crashes reproducibly while firefox is starting:

        Fatal server error:
        Caught signal 11.  Server aborting

The complete XFree86.0.log file is [1]available.

Ktracing firefox while starting shows some

        _lwp_park -1 errno 60 Connection timed out

lines until it finally prints

        "The application 'firefox-bin' lost its connection to the
        display :0.0;\nmost likely the X server was shut down or yo\
        u killed/destroyed\nthe application.\n"

Complete ktrace output is available on request.

What could cause this problem? Any hints on how to debug this further?


TIA, Jukka

[1] http://salmi.ch/~jukka/nbsd/XFree86.0.log.gz

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