kgnfs_flushmsg

If you have huge trace file with the following trace
[1381998723786640] kgnfs_flushmsg:4808: CH OUT of ORDER SEND m->order 197816641 ch->order -1 ch 0xa0d530640
[1381998723947502] kgnfs_flushmsg:4808: CH OUT of ORDER SEND m->order 197816642 ch->order -1 ch 0xa0d530640

Seems like you are hitting below bug:
Bug 16542886 - HUGE TRACE FILES WITH DNFS ERROR MESSAGES