Ok, I found a palliative. Now I'm working with "mem=6770M" option, that gives me 6072MB RAM (of 6144 total). Interesting, that if you choose too much, like "mem=6800M", system behaviour is exactly the same as without any options.
Can it be that kernel incorrectly sets amount of memory to use so such a situation occurs? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/