Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: breakage: flex mmap patch for x86-64 | Date | Sat, 6 Nov 2004 00:26:48 +0100 |
| |
On Friday 05 of November 2004 23:54, Ricky Beam wrote: > On Fri, 5 Nov 2004, Rafael J. Wysocki wrote: > >> This prevents 32bit apps from running on x86_64. Backing out the Makefile > >> and processor.h changes has everything working again. Perhaps something > >> needs to check for a 32bit environment? I don't know if it's the change > >> to TASK_SIZE or the "backwards" mmaps that's the real breakage. And at this > >> point, I don't have time to test. > >> > >> (64bit apps work just fine.) > > > >Confirmed, and apparently it is not sifficient to change the TASK_SIZE > >definition in include/asm-x86_64/processor.h to make the 32-bit userland > >work. Hence, it seems that the "backwards" mmaps break things. > > Looks like checking for PER_LINUX32 might fix it... > > >>> if (current->personality & (ADDR_COMPAT_LAYOUT|PER_LINUX32))
It does not seem to work either.
Greets, RJW
-- - Would you tell me, please, which way I ought to go from here? - That depends a good deal on where you want to get to. -- Lewis Carroll "Alice's Adventures in Wonderland" - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |