On Fri, 2011-08-19 at 14:44 -0400, David Daney wrote:
> Current Octeon systems do in fact have holes in their memory zones.
> We need to select HOLES_IN_ZONE. If we do not, some memory
> configurations will result in crashes at boot time like this:
> CPU 6 Unable to handle kernel paging request at virtual address
> 0000000000700000, epc == ffffffff8118fe00, ra == ffffffff8118fe9c
> Cpu 6
> Call Trace:
> [<ffffffff8118fe00>] setup_per_zone_wmarks+0x1b0/0x338
> [<ffffffff815cd738>] init_per_zone_wmark_min+0x64/0xd0
> [<ffffffff81100438>] do_one_initcall+0x38/0x160
> Reported-by: Jason Kwon <firstname.lastname@example.org>
> Signed-off-by: David Daney <email@example.com>
> Cc: Jason Kwon <firstname.lastname@example.org>
> Jason, can you test this patch?
> Ralf, if Jason reports that it fixes his problem, it probably is
> needed for 3.0 and 3.1.
Your patch fixes the problem for the board with CN38xx and 2GB RAM that
Tested-by: Guenter Roeck <email@example.com>
Thanks a lot for looking into this.