On 04/29/2013 06:03 PM, Linus Torvalds wrote:
Seriously, you can compile yourself a 64-bit kernel and continue to use your 32-bit user-land. And you can complain to whatever distro you used that it didn't do that in the first place. But we're not going to bother with trying to tune PAE for some particular load. It's just not worth it to anybody.
I can think of one way to "tune PAE" that will help avoid the breakage, and at the same time draw the attention of users. Limit the memory that a 32 bit PAE kernel uses, to something small enough where the user will not encounter random breakage. Maybe 8 or 12GB? It could also print out a friendly message, to inform the user they should upgrade to a 64 bit kernel to enjoy the use of all of their memory. It is a bit of a heavy stick, but I suspect that it would clue in all of the affected users. If you have no objection to this, I'll whip up a patch. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
