Justin Piszcz wrote: > # ps auxww | grep D > USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND > root 273 0.0 0.0 0 0 ? D Oct21 14:40 [pdflush] > root 274 0.0 0.0 0 0 ? D Oct21 13:00 [pdflush] > > After several days/weeks, this is the second time this has happened, > while doing regular file I/O (decompressing a file), everything on the > device went into D-state. The next time you come across something like that, do a SysRq-T dump and post that. It shows a stack trace of all processes - and in particular, where exactly each task is stuck. /mjt - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html