[ 8.984680] NVRM: loading NVIDIA UNIX x86_64 Kernel Module
260.19.29 Wed Dec 8 12:08:56 PST 2010
So you've got the Nvidia stuff loaded - well an obvious first test would
be to run with the provided Fedora Nvidia drivers and X. That would be a
quick way to eliminate one possible cause.
[12032.976089] npviewer.bin[2721]: segfault at 0 ip 0000000000f7ced1
sp 00000000ff8a60c0 error 4 in libflashplayer.so[bdd000+b2e000]
[12041.569570] npviewer.bin[5297]: segfault at f74bd0e0 ip 00000000468527c6 sp
00000000ffd76248 error 4 in libc-2.12.90.so[467d7000+18d000]
[13779.830969] npviewer.bin[5331]: segfault at 0 ip 0000000000ca9ed1 sp 00000000fff96a40
error 4 in libflashplayer.so[90a000+b2e000]
[16384.558119] npviewer.bin[6218]: segfault at 418 ip 00000000006b9c86 sp
00000000ffd63c98 error 6 in libflashplayer.so[46a000+b2e000]
And that doesn't look good - your flash player is crashing in weird ways.
Would make me nervous given that its exposed to remote data and networks.
Could just be crap code of course.