28 Jun
2010
28 Jun
'10
4:08 p.m.
On 06/28/2010 02:03 AM, Michael Cree wrote:
On 28/06/10 11:14, Dave Airlie wrote:
The bus error is caused by the kernel, its something alpha specific with how mmap works, I'm not sure if alpha needs some special mmap flags or something,
Neither am I. All I know is that Alpha reorders CPU instructions more aggressively than most other architectures, the page map size is 8kB, and memory accesses must be aligned to the datum size.
There are no special mmap flags on alpha. The non-cacheable property is a function of the physical address (e.g. bit 40 set for ev5), and this has already been taken care of by the kernel.
r~